CN212803916U - Novel motorcycle crankshaft - Google Patents
Novel motorcycle crankshaft Download PDFInfo
- Publication number
- CN212803916U CN212803916U CN202021037347.0U CN202021037347U CN212803916U CN 212803916 U CN212803916 U CN 212803916U CN 202021037347 U CN202021037347 U CN 202021037347U CN 212803916 U CN212803916 U CN 212803916U
- Authority
- CN
- China
- Prior art keywords
- lubricating oil
- crank
- oil duct
- oil channel
- crank pin
- Prior art date
- 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
Links
- 239000010687 lubricating oil Substances 0.000 claims abstract description 101
- 239000003921 oil Substances 0.000 claims abstract description 37
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 238000005461 lubrication Methods 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to the field of transportation equipment related parts, in particular to a novel motorcycle crankshaft, which comprises a left crank, a right crank and a crank pin for connecting the left crank and the right crank, wherein the crank pin is sleeved with a piston connecting rod, a needle bearing is arranged between the crank pin and the piston connecting rod, a crank lubricating oil channel is arranged in the right crank, the crank lubricating oil channel is positioned at the symmetrical center of the right crank, a slant oil channel is arranged at the tail end of the crank lubricating oil channel, a crank pin lubricating oil channel is arranged in the crank pin, and a bearing lubricating oil channel is radially arranged along the crank pin, the crank lubricating oil channel comprises a first lubricating oil channel close to the axial end part of the right crank, a second lubricating oil channel connected at the tail end of the first lubricating oil channel and a guide oil channel arranged at the peripheral side of the tail end, the aperture of the first lubricating oil passage is smaller than that of the second lubricating oil passage. The utility model discloses be applied to the transmission of motorcycle.
Description
Technical Field
The utility model relates to a relevant part field of transportation equipment, concretely relates to novel motorcycle bent axle.
Background
The crankshaft of motorcycle is a spark plug to ignite the gasoline in engine, and the gasoline is combusted to do work to drive the piston race to move downwards and then drive the crankshaft to rotate, and the crankshaft also depends on the inertia of the crankshaft to maintain the operation when the engine is not ignited.
The clamping stagnation or abrasion of a crankshaft needle roller bearing caused by lubrication is one of important problems of the crankshaft of the engine, and engine lubricating oil is limited by the prior art to directly enter the needle roller from a crank pin oil passage hole after entering the crank pin from a right crank central oil passage so as to lubricate the needle roller. Because lubricating oil has certain stickness, and crank center oil duct locates the rotation center of right crank, when the bent axle rotated, the centrifugal force that lubricating oil in the right crank center oil duct received was minimum, therefore the velocity of flow of lubricating oil in the right crank center oil duct was slower.
In the prior art, as shown in CN 208749799U, a motorcycle crankshaft assembly includes a left crank and a right crank, between which a crank pin is arranged; a crank lubricating oil channel is arranged in the right crank, a crank pin lubricating oil channel and a lubricating way for supplying oil to the needle bearing are arranged in the crank pin, an oil supply hole is formed in the crank pin along the radial direction of the rotation center of the right crank, a plunger capable of axially sliding along the oil supply hole is arranged in the oil supply hole, and the crank lubricating oil channel and the crank pin lubricating oil channel are respectively communicated with the spaces of the oil supply holes on the two sides of the plunger; a plug is arranged at the end part of the oil supply hole to plug the oil supply hole, a pressure spring is arranged between the plug and the plunger, a one-way valve is arranged in the plunger, and lubricating oil can only flow from the crank lubricating oil channel to the crank pin lubricating oil channel through the one-way valve; and a spiral flow deflector is arranged in the crank lubricating oil passage and is fixed with the side wall of the crank lubricating oil passage.
In this technical scheme, adopt and set up the lubricating oil duct and set up the structure of spiral water conservancy diversion piece, nevertheless structurally, still have lubricating oil because of its viscidity lead to the problem that also can't flow fast under the centrifugal force effect.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides a novel motorcycle bent axle has solved the slow problem of lubricating oil flow speed.
In order to achieve the purpose, the utility model is realized by the following technical proposal:
a novel motorcycle crankshaft comprises a left crank, a right crank and a crank pin for connecting the left crank and the right crank, wherein a piston connecting rod is sleeved on the crank pin, a needle bearing is arranged between the crank pin and the piston connecting rod, a crank lubricating oil channel is arranged in the right crank, the crank lubricating oil channel is positioned at the symmetrical center of the right crank, a slant oil channel is arranged at the tail end of the crank lubricating oil channel, a crank pin lubricating oil channel communicated with the slant oil channel is arranged in the crank pin, a bearing lubricating oil channel communicated with the crank pin lubricating oil channel and the needle bearing is radially arranged along the crank pin, the crank lubricating oil channel comprises a first lubricating oil channel close to the axial end part of the right crank, a second lubricating oil channel connected to the tail end of the first lubricating oil channel and a guide oil channel arranged on the peripheral side of the tail end of the second lubricating oil channel, the aperture of the first lubricating oil passage is smaller than that of the second lubricating oil passage.
Preferably, a spiral flow deflector is embedded in the first lubricating oil channel, and the spiral flow deflector is fixedly connected with the inner wall of the first lubricating oil channel.
Preferably, a plunger for preventing the return of lubricating oil is installed in the joint of the crank pin lubricating oil channel and the inclined oil channel, and a one-way valve is installed on the plunger.
Preferably, the crank pin is integrally formed with the left crank.
By adopting the technical scheme, the beneficial effects of the utility model are that:
the utility model discloses a cascaded crank lubrication oil duct, its aperture is by right crank tip to the one end grow of large size, and when lubricating oil got into the crank lubrication oil duct in, can produce bigger centrifugal force because of the structure of its echelonment, cooperation direction oil duct can be more timely, in leading-in crank pin and bearing with lubricating oil fast, promotes the velocity of flow of lubricating oil, guarantees bearing's lubricated effect.
Drawings
Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.
Detailed Description
The following detailed description will be given with reference to specific embodiments, so as to solve the technical problems by applying technical means, and to fully understand and implement the technical effects of the present invention.
Examples
Referring to fig. 1, a novel motorcycle crankshaft comprises a left crank 1, a right crank 2 and a crank pin 3 connecting the left crank and the right crank, in this embodiment, the crank pin 3 and the left crank 1 are integrally formed, so that components are saved in production, assembly procedures are simplified, and assembly errors are avoided;
a piston connecting rod 4 is sleeved on the crank pin 3, a needle bearing 5 is arranged between the crank pin 3 and the piston connecting rod 4, a crank lubricating oil channel 6 is arranged in the right crank 2, the crank lubricating oil channel 6 is positioned at the symmetrical center of the right crank 2, an inclined oil channel 7 is communicated with the tail end of the crank lubricating oil channel 6, a crank pin lubricating oil channel 31 communicated with the inclined oil channel 7 is arranged in the crank pin 3, and a bearing lubricating oil channel 32 communicated with the crank pin lubricating oil channel 31 and the needle bearing 5 is radially arranged along the crank pin 3; lubricating oil enters from the crank lubricating oil channel 6, then enters the crank pin lubricating oil channel 31 through the inclined oil channel 7, and finally lubricates the needle bearing 5 through the bearing lubricating oil channel 32;
the crank lubricating oil passage 6 comprises a first lubricating oil passage 61 close to the axial end part of the right crank, a second lubricating oil passage 62 connected to the tail end of the first lubricating oil passage 61 and a guide oil passage 63 arranged on the periphery side of the tail end of the second lubricating oil passage 62, the guide oil passage 63 is connected with the inclined oil passage 7, and the aperture of the first lubricating oil passage 61 is smaller than that of the second lubricating oil passage 62; with the crank lubricating oil channel 6 with the structure, lubricating oil enters from the first lubricating oil channel 61, a fall is formed between the first lubricating oil channel 61 and the second lubricating oil channel 62, the centrifugal force generated by the crankshaft during rotation on the lubricating oil is increased, and the lubricating oil is ensured to have enough power to be transmitted backwards; meanwhile, in order to facilitate the processing, a processing hole is formed at the end of the second lubricating oil channel 62, and a plug 621 is arranged for sealing;
in this embodiment, a spiral flow deflector 64 is embedded in the first lubricating oil channel 61, and the spiral flow deflector 64 is fixedly connected with the inner wall of the first lubricating oil channel 61; the spiral guide vane 64 is arranged, the relative motion between the lubricating oil and the spiral guide vane 64 occurs when the crankshaft rotates at high speed, and the spiral guide vane 64 has a pushing effect on the lubricating oil to accelerate the lubricating oil to flow backwards;
in this embodiment, a plunger 33 for preventing the backflow of the lubricating oil is installed in a connection position between the crank pin lubricating oil passage 31 and the inclined oil passage 7, and a check valve 331 is installed on the plunger 33. The plunger 33 is provided and equipped with a check valve 331 for preventing the return flow of the lubricating oil in the crank pin lubricating oil passage 31 when the piston stops;
the utility model discloses a cascaded crank lubrication oil duct, its aperture is by right crank tip to the one end grow of large size, and when lubricating oil got into the crank lubrication oil duct in, can produce bigger centrifugal force because of the structure of its echelonment, cooperation direction oil duct can be more timely, in leading-in crank pin and bearing with lubricating oil fast, promotes the velocity of flow of lubricating oil, guarantees bearing's lubricated effect.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. The utility model provides a novel motorcycle crankshaft, includes left crank and right crank and connects crank pin between them, the cover is equipped with the piston rod on the crank pin, is provided with bearing, its characterized in that between crank pin and the piston rod: be equipped with crank lubricating oil duct in the right side crank, crank lubricating oil duct is located right crank's symmetric center, is located crank lubricating oil duct's end UNICOM sets up an inclined oil duct, be provided with in the crank pin with inclined oil duct looks UNICOM's crank pin lubricating oil duct, and follow the UNICOM has radially been seted up to the crank pin lubricating oil duct and needle bearing's bearing lubricating oil duct, crank lubricating oil duct is including the first lubricating oil duct that is close to right crank axial tip, connect at the terminal second lubricating oil duct of first lubricating oil duct and locate the terminal week side's of second lubricating oil duct direction oil duct, the direction oil duct with inclined oil duct links to each other, the aperture of first lubricating oil duct is less than the aperture of second lubricating oil duct.
2. A novel motorcycle crankshaft as claimed in claim 1, wherein: a spiral flow deflector is embedded in the first lubricating oil channel and connected and fixed with the inner wall of the first lubricating oil channel.
3. A novel motorcycle crankshaft as claimed in claim 2, wherein: and a plunger for preventing the return of lubricating oil is arranged in the joint of the crank pin lubricating oil channel and the inclined oil channel, and a one-way valve is arranged on the plunger.
4. A novel motorcycle crankshaft as claimed in claim 1, 2 or 3, wherein: the crank pin and the left crank are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021037347.0U CN212803916U (en) | 2020-06-08 | 2020-06-08 | Novel motorcycle crankshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021037347.0U CN212803916U (en) | 2020-06-08 | 2020-06-08 | Novel motorcycle crankshaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212803916U true CN212803916U (en) | 2021-03-26 |
Family
ID=75094799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021037347.0U Expired - Fee Related CN212803916U (en) | 2020-06-08 | 2020-06-08 | Novel motorcycle crankshaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212803916U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102023206039A1 (en) * | 2023-06-27 | 2025-01-02 | Audi Aktiengesellschaft | Crankshaft for a crankshaft arrangement of an internal combustion engine and corresponding crankshaft arrangement |
-
2020
- 2020-06-08 CN CN202021037347.0U patent/CN212803916U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102023206039A1 (en) * | 2023-06-27 | 2025-01-02 | Audi Aktiengesellschaft | Crankshaft for a crankshaft arrangement of an internal combustion engine and corresponding crankshaft arrangement |
| DE102023206039B4 (en) * | 2023-06-27 | 2025-05-28 | Audi Aktiengesellschaft | Crankshaft for a crankshaft arrangement of an internal combustion engine and corresponding crankshaft arrangement |
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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: 20210326 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |