CN216894565U - Retainer-free curved groove ball bearing engine valve mechanism - Google Patents
Retainer-free curved groove ball bearing engine valve mechanism Download PDFInfo
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- CN216894565U CN216894565U CN202220276544.0U CN202220276544U CN216894565U CN 216894565 U CN216894565 U CN 216894565U CN 202220276544 U CN202220276544 U CN 202220276544U CN 216894565 U CN216894565 U CN 216894565U
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- ball bearing
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- 230000005540 biological transmission Effects 0.000 claims abstract description 40
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 238000002485 combustion reaction Methods 0.000 description 2
- BYXHQQCXAJARLQ-ZLUOBGJFSA-N Ala-Ala-Ala Chemical compound C[C@H](N)C(=O)N[C@@H](C)C(=O)N[C@@H](C)C(O)=O BYXHQQCXAJARLQ-ZLUOBGJFSA-N 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
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Abstract
The patent discloses a no retainer curved groove ball bearing engine valve actuating mechanism belongs to the engine field. Aiming at the problem that the structural form of the existing engine valve actuating mechanism can not be suitable for an engine using a curved groove ball bearing as a motion conversion mechanism, the patent designs an overhead cam valve actuating mechanism which adopts middle cylindrical gear transmission and drives bevel gears at two sides to change directions. The air distribution mechanism consists of a cam shaft, an air valve assembly, an air cylinder piston assembly, a transmission shaft, an inertia gear, a transmission gear, a driving bevel gear, a driven bevel gear and an air valve. The valve actuating mechanism has the following advantages: 1. the structure is simple, and the transmission is stable and reliable; 2. the space between the engine cylinder groups is effectively reduced, and the engine volume is reduced.
Description
Technical Field
The patent relates to an engine valve actuating mechanism, and belongs to the field of engines. In particular to a valve actuating mechanism applied to an engine taking a retainer-free curved groove ball bearing as a motion conversion mechanism.
Background
The patent application No. 201910586827.8 discloses a double-cylinder internal combustion engine using a retainer-free curved groove ball bearing mechanism as a motion conversion mechanism, wherein two sets of cylinders and pistons are arranged in bilateral symmetry to mutually counteract the inertia force of reciprocating motion. The valve actuating mechanism of this patent adopts simple cam mechanism, inconvenient multi-cylinder integration.
The patent application No. 202010077381.9 discloses a multi-cylinder internal combustion engine apparatus using a retainer-less curved groove ball bearing mechanism as a reciprocating linear motion and rotary motion converting mechanism instead of the conventional crank link mechanism, which has the characteristics of simple motion form, low noise and small vibration. The cam mechanism is also adopted in the patent, and the distance between 2 groups of cylinders is larger, so that the size of the engine is inconvenient to reduce.
The existing engine valve actuating mechanism is designed based on a crank connecting rod as a power conversion mechanism, and can not meet the requirement of an engine using a retainer-free curved groove ball bearing as a motion conversion mechanism. In order to adapt to the structural characteristics of a retainer-free curved groove ball bearing mechanism as an engine motion form conversion mechanism, the patent discloses a retainer-free curved groove ball bearing engine valve actuating mechanism which adopts a middle cylindrical gear transmission and drives bevel gears at two sides to reverse and is of an overhead cam structure.
Disclosure of Invention
The retainer-free curved groove ball bearing engine valve mechanism achieves the purpose, the inertia gear of the cylinder piston assembly drives the transmission gear, the transmission gear drives the bevel gears on the two sides to reverse through the transmission shaft, the rotary motion is transmitted to the cam shaft, and the cam shaft rotates to drive the cam shaft to drive the valve assembly to control the opening and closing of the valve, so that the air inlet and the air outlet of the engine are achieved.
The technical scheme for realizing the purpose is as follows:
the utility model provides a no holder curved groove ball bearing engine valve actuating mechanism, by camshaft (1), valve assembly (2), cylinder piston assembly (3), transmission shaft (4), inertia gear (5), drive gear (6), drive bevel gear (7), driven bevel gear (8), valve (9) constitute characterized by: the inertia gear (5) drives the transmission gear (6) to drive the transmission shaft (4) to rotate; the transmission shaft (4) is fixedly connected with the driving bevel gear (7) to drive the driving bevel gears (7) on the two sides to rotate; the driving bevel gear (7) and the driven bevel gear (8) are meshed with each other, and the crossed axes angle is 90 degrees; the driven bevel gear (8) is fixedly connected with the camshaft (1) to drive the air inlet cam and the air outlet cam on the camshaft (1) to rotate and drive the air inlet and air outlet valve assembly (2) to control the opening and closing of the air inlet and air outlet valves of the engine;
4 groups of cam shafts (1), driven bevel gears (8), valve assemblies (2) and cylinder piston assemblies (3) are respectively arranged, and 2 driving bevel gears (7) are symmetrically arranged left and right by taking the transmission gears (6) as a symmetrical plane;
the transmission ratio of the inertia gear (5) to the transmission gear (6) is 1-1.5: 1;
the transmission ratio of the driving bevel gear (7) to the driven bevel gear (8) is 1: 1 to 1.5.
The gas distribution mechanism meets the structural characteristics of a retainer-free curved groove ball bearing engine and has the following advantages:
1. the structure is simple, and the transmission is stable and reliable;
2. the space between the engine cylinder groups is effectively reduced, and the engine volume is reduced.
Drawings
FIG. 1 is a schematic structural view of an engine gas distribution mechanism along section A-A-A;
FIG. 2 is a schematic structural view of an engine gas distribution mechanism along section B-B;
the legend symbols in the figures represent the following meanings:
the engine comprises a camshaft 1, a valve assembly 2, a cylinder piston assembly 3, a transmission shaft 4, an inertia gear 5, a transmission gear 6, a driving bevel gear 7, a driven bevel gear 8 and a valve 9.
Detailed Description
The following detailed description of the patent is made with reference to the accompanying drawings, and as shown in fig. 1, the engine valve actuating mechanism of the retainer-free curved groove ball bearing disclosed by the patent is composed of a camshaft (1), a valve assembly (2), a cylinder piston assembly (3), a transmission shaft (4), an inertia gear (5), a transmission gear (6), a driving bevel gear (7), a driven bevel gear (8) and a valve (9); the cylinder piston assembly (3) provides motive power to drive the upper and lower inertial gears (5) to rotate, the inertial gears (5) drive the transmission gear (6) through gear engagement to drive the transmission shaft (4) to rotate, the transmission shaft (4) is fixedly connected with the left and right driving bevel gears (7), the driving bevel gears (7) are mutually engaged with the driven bevel gears (8), the driven bevel gears (8) are fixedly connected with the camshaft (1) to drive the distribution cam on the camshaft (1) to rotate, and the driving valve assembly (2) controls the opening and closing of the engine valve.
As shown in fig. 2, another embodiment of the present patent is that the transmission ratio of the inertia gear (5) to the transmission gear (6) is 1: 1; the transmission ratio of the driving bevel gear (7) to the driven bevel gear (8) is also 1: 1.
in order to reduce the structural size of the transmission gear (6), another embodiment of the patent is that the transmission ratio of the inertia gear (5) to the transmission gear (6) is 1.5: 1; the transmission ratio of the driving bevel gear (7) to the driven bevel gear (8) is 1: 1.5.
the basic transmission relationship of the patent is unchanged, and the device can be designed into different structural sizes and structural forms, which all form other embodiments of the patent.
Claims (3)
1. The utility model provides a no holder curved groove ball bearing engine valve actuating mechanism, by camshaft (1), valve assembly (2), cylinder piston assembly (3), transmission shaft (4), inertia gear (5), drive gear (6), drive bevel gear (7), driven bevel gear (8), valve (9) constitute characterized by: the inertia gear (5) drives the transmission gear (6) to drive the transmission shaft (4) to rotate; the transmission shaft (4) is fixedly connected with the driving bevel gear (7) to drive the driving bevel gears (7) on the two sides to rotate; the driving bevel gear (7) and the driven bevel gear (8) are meshed with each other, and the crossed axes angle is 90 degrees; the driven bevel gear (8) is fixedly connected with the camshaft (1) to drive the air inlet cam and the air outlet cam on the camshaft (1) to rotate, and the air valve assembly (2) is driven to control the opening and closing of the engine air valve.
2. The engine valve train of a cageless curved groove ball bearing as claimed in claim 1 wherein: the camshaft (1), the driven bevel gears (8), the valve assemblies (2) and the cylinder piston assemblies (3) are respectively provided with 4 groups, and the number of the driving bevel gears (7) is 2, and the driving bevel gears (6) are arranged in a bilateral symmetry mode by taking the transmission gears (6) as a symmetry plane.
3. The engine valve train of a cageless curved groove ball bearing as claimed in claim 1 wherein: the transmission ratio of the inertia gear (5) to the transmission gear (6) is 1-1.5: 1, the transmission ratio of the driving bevel gear (7) to the driven bevel gear (8) is 1: 1 to 1.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220276544.0U CN216894565U (en) | 2022-02-11 | 2022-02-11 | Retainer-free curved groove ball bearing engine valve mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220276544.0U CN216894565U (en) | 2022-02-11 | 2022-02-11 | Retainer-free curved groove ball bearing engine valve mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216894565U true CN216894565U (en) | 2022-07-05 |
Family
ID=82184011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220276544.0U Expired - Fee Related CN216894565U (en) | 2022-02-11 | 2022-02-11 | Retainer-free curved groove ball bearing engine valve mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216894565U (en) |
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2022
- 2022-02-11 CN CN202220276544.0U patent/CN216894565U/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: 20220705 |
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| CF01 | Termination of patent right due to non-payment of annual fee |