CN109184842B - Valve driving device and valve driving system - Google Patents
Valve driving device and valve driving system Download PDFInfo
- Publication number
- CN109184842B CN109184842B CN201811190565.5A CN201811190565A CN109184842B CN 109184842 B CN109184842 B CN 109184842B CN 201811190565 A CN201811190565 A CN 201811190565A CN 109184842 B CN109184842 B CN 109184842B
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- output
- sun gear
- rotating shaft
- valve
- eccentric wheel
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
- F01L1/053—Camshafts overhead type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
- F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
- F01L2001/0471—Assembled camshafts
- F01L2001/0473—Composite camshafts, e.g. with cams or cam sleeve being able to move relative to the inner camshaft or a cam adjusting rod
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
- F01L1/053—Camshafts overhead type
- F01L2001/0537—Double overhead camshafts [DOHC]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanically-Actuated Valves (AREA)
- Retarders (AREA)
Abstract
The invention provides a valve driving device and a valve driving system, and relates to the technical field of valve driving. Wherein, the valve driving device includes: a rotating shaft; the adjusting eccentric wheel is sleeved on the rotating shaft and fixedly connected with the rotating shaft so as to rotate based on the power output by the rotating shaft; the output eccentric wheel is sleeved on the adjusting eccentric wheel and is arranged in a rotating manner relative to the adjusting eccentric wheel; the output sun gear is provided with a slide corresponding to the slide block arranged on the end face of the output eccentric gear along the radial direction on the end face of the output sun gear, so that the axial lead distance between the output eccentric gear and the adjustment eccentric gear is adjusted through the movement of the slide block in the slide block, and when the slide block is arranged on the slide block, the output sun gear can drive the output eccentric gear to rotate based on the power output by the rotating shaft. By the arrangement, the problem that the adjustment of the valve is inconvenient in the prior art can be solved.
Description
Technical Field
The invention relates to the technical field of valve driving, in particular to a valve driving device and a valve driving system.
Background
The valve is responsible for inputting air into the engine or exhausting combusted exhaust gas. Among them, a valve driving device is generally provided to drive a valve to perform an intake or exhaust operation of an engine. The inventor researches and discovers that in the prior valve driving technology, the valve driving device has the problem of inconvenience in driving adjustment of the valve.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a valve driving device and a valve driving system, which can solve the problem of inconvenience in adjusting a valve in the prior art.
In order to achieve the above purpose, the embodiment of the present invention adopts the following technical scheme:
a valve drive apparatus comprising:
a rotating shaft;
the adjusting eccentric wheel is sleeved on the rotating shaft and fixedly connected with the rotating shaft so as to rotate based on the power output by the rotating shaft, wherein the axis of the adjusting eccentric wheel is different from that of the rotating shaft;
the output eccentric wheel is sleeved on the adjusting eccentric wheel and is arranged in a rotating way relative to the adjusting eccentric wheel, wherein the axis of the output eccentric wheel is different from that of the adjusting eccentric wheel;
the output sun gear, the terminal surface of this output sun gear along radial be provided with the slide that the terminal surface of output eccentric wheel set up corresponds to through this slider in the slide remove regulation output eccentric wheel with the axial lead distance of adjustment eccentric wheel, wherein, when the slider set up in the slide, output sun gear can be based on the power drive of pivot output the output eccentric wheel rotates.
In a preferred option of the embodiment of the present invention, the valve driving device further includes:
the output planet carrier is provided with an adjusting structure, the output sun gear and the rotating shaft can rotate relatively, the output planet carrier is coupled with the gear ring and the output sun gear, the output planet carrier is controlled to rotate through the adjusting structure, and accordingly rotation of the output sun gear is adjusted, the sliding block is driven to move in the sliding way, and accordingly the output eccentric gear is driven to rotate.
In a preferred option of the embodiment of the present invention, the valve driving device further includes:
and the driving device is connected with the output planet carrier to control the rotation of the output planet carrier.
In a preferred option of the embodiment of the present invention, in the valve driving device, the driving apparatus is an electromagnetic driving device.
In a preferred option of the embodiment of the present invention, the valve driving device further includes:
the input sun gear is sleeved on the rotating shaft and fixedly connected with the rotating shaft so as to rotate based on the power output by the rotating shaft;
and the transmission structure is respectively connected with the input sun gear and the output sun gear, so that the input sun gear can drive the output sun gear to rotate based on the power output by the rotating shaft.
In a preferred option of the embodiment of the present invention, in the valve driving device, the transmission structure includes:
a first planetary gear provided to the input sun gear;
the second planetary gear is arranged on the output sun gear;
and the gear ring is respectively connected with the first planetary gear and the second planetary gear and is used for driving the second planetary gear to rotate when the first planetary gear rotates under the drive of the input sun gear so as to drive the output sun gear to rotate.
In a preferred option of the embodiment of the present invention, in the valve driving device, the adjusting eccentric wheel and the input sun gear are respectively located at different positions of the rotating shaft, and are integrally disposed with the rotating shaft.
In a preferred option of the embodiment of the present invention, the valve driving device further includes:
the input planet carrier is sleeved on the rotating shaft and can be fixedly connected with an external structure so that the valve driving device is fixed on the external structure.
On the basis of the above, the embodiment of the invention also provides a valve driving system, which comprises a plurality of valve driving devices, wherein the valve driving devices are divided into two groups, one group of the valve driving devices is used for driving an intake valve, and the other group of the valve driving devices is used for driving an exhaust valve.
In a preferred option of the embodiment of the present invention, in the valve driving system, the rotating shafts of the valve driving devices belonging to the same group are integrally formed and are the same rotating shaft.
According to the valve driving device and the valve driving system, through the matching arrangement of the rotating shaft, the adjusting eccentric wheel, the output eccentric wheel and the output sun wheel, the rotating speeds of the adjusting eccentric wheel, the output eccentric wheel and the output sun wheel are the same as those of the rotating shaft, so that the rotating output eccentric wheel can move relative to the output sun wheel through the matching of the sliding block and the sliding way, the adjustment of the axial lead distance between the output eccentric wheel and the adjusting eccentric wheel is realized, the adjustment of the offset of the output eccentric wheel is further completed, the valve arranged on the output eccentric wheel is conveniently and quickly adjusted, and the problem that the adjustment of the valve is inconvenient in the prior art is solved.
In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1 is a schematic structural diagram of a valve driving system according to an embodiment of the present invention.
Fig. 2 is an application schematic diagram of a valve driving device according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a valve driving device according to an embodiment of the present invention.
Fig. 4 is another schematic structural diagram of a valve driving device according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a slider according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a slide according to an embodiment of the present invention.
Fig. 7 is a view of a valve driving device provided in an embodiment of the present invention on a side having an adjusting eccentric.
Fig. 8 is a schematic view of a part of a valve driving device according to an embodiment of the present invention.
Icon: 10-valve actuation system; 20-valve; 100-valve driving device; 110-a rotating shaft; 120-adjusting an eccentric wheel; 130-output eccentric; 131-a slider; 140-output sun gear; 141-a slideway; 150-an output planet carrier; 160-input sun gear; 171-first planetary gears; 173-a second planetary gear; 175-a gear ring; 180-input planet carrier.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. In the description of the present invention, the terms "first," "second," "third," "fourth," and the like are used merely to distinguish between descriptions and are not to be construed as merely or implying relative importance.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1 and 2, an embodiment of the present invention provides a valve actuation system 10 for actuating a valve 20 for intake and exhaust operations to an engine. Among them, the valve 20 may be generally divided into an intake valve and an exhaust valve according to the functions of the valve 20.
Accordingly, in the present embodiment, the valve-driving system 10 may include a plurality of valve-driving devices 100 in order to drive the intake valve and the exhaust gas, respectively. Wherein the plurality of valve driving apparatuses 100 are divided into two groups, one group of the two groups of the valve driving apparatuses 100 is used for driving the intake valve, and the other group is used for driving the exhaust valve.
In detail, the two sets of the valve driving apparatuses 100 may be a first set and a second set, respectively. The valve driving devices 100 of the first group may be connected to the intake valves, respectively, to drive the intake valves to perform intake operation on the engine. The valve-actuating devices 100 of the second group may be respectively connected to exhaust valves to actuate the exhaust valves to exhaust the engine.
Further, considering that the operation modes of the valve driving devices 100 belonging to the same group are generally the same, in this embodiment, in order to facilitate the simplicity of the structure of the valve driving system 10 and reduce the material and labor costs of the production and manufacture, the rotating shafts 110 of the valve driving devices 100 belonging to the same group may be integrally formed into the same rotating shaft 110.
That is, in one possible example, the valve drives 100 of the first group share a common rotational axis 110, and the valve drives 100 of the second group share another common rotational axis 110. In the present embodiment, the rotation shaft 110 common to the valve driving devices 100 of the first group and the rotation shaft 110 common to the valve driving devices 100 of the second group can be driven by the same power source, in order to further improve the simplicity of the structure.
Referring to fig. 3, an embodiment of the present invention further provides a valve driving apparatus 100 applicable to the valve driving system 10. The valve driving device 100 may include a rotation shaft 110, an adjustment eccentric 120, an output eccentric 130, and an output sun 140.
In detail, the rotation shaft 110 may be connected to a power source (e.g., a motor) to obtain power output from the power source and rotate based on the power. The adjusting eccentric 120 may be sleeved on the rotating shaft 110 and fixedly connected with the rotating shaft 110, so as to rotate based on the power output by the rotating shaft 110, that is, the adjusting eccentric 120 may obtain the power output by the power source through the rotating shaft 110 to rotate. The output eccentric 130 may be sleeved on the adjustment eccentric 120 and may be rotatably disposed relative to the adjustment eccentric 120, that is, the output eccentric 130 and the adjustment eccentric 120 are not fixedly connected.
Referring to fig. 4, 5 and 6, the end surface of the output sun gear 140 is provided with a slide rail 141 corresponding to the slide block 131 provided on the end surface of the output eccentric gear 130, so that when the slide block 131 is disposed on the slide rail 141, the output sun gear 140 can drive the output eccentric gear 130 to rotate based on the power output by the rotating shaft 110, that is, the output sun gear 140 may also be connected with the rotating shaft 110 to obtain the power output by the power source.
In conjunction with fig. 3 and 7, the axis of the adjustment eccentric 120 is different from the axis of the rotary shaft 110, that is, a non-zero distance exists between the axis of the adjustment eccentric 120 and the axis of the rotary shaft 110. The output eccentric 130 is different from the axis of the adjustment eccentric 120, i.e., there is a non-zero distance between the axis of the output eccentric 130 and the axis of the adjustment eccentric 120.
In this embodiment, when the output eccentric 130 rotates relative to the adjustment eccentric 120, the sliding block 131 may move along the radial direction of the sun gear in the sliding way 141 to adjust the distance between the output eccentric 130 and the axis of the adjustment eccentric 120, so as to adjust the eccentric amount of the output eccentric 130, thereby completing the adjustment of the work of the valve 20.
Further, in order to facilitate the control of the rotation of the output eccentric 130 with respect to the adjustment eccentric 120 to adjust the eccentric amount of the output eccentric 130, in this embodiment, with further reference to fig. 3, the valve driving device 100 may further include an output planet carrier 150, and the curved surface of the output eccentric 130 is provided with an adjusting hole.
In detail, the output planet carrier 150 is provided with an adjusting structure, the output sun gear 140 and the rotating shaft 110 can rotate relatively, the output planet carrier 150 is coupled with the gear ring 175 and the output sun gear 140, the output planet carrier 150 is controlled to rotate by the adjusting structure, so that the rotation of the output sun gear 140 is adjusted, and the sliding block 131 is driven to move in the sliding way 141, so that the output eccentric gear 130 is driven to rotate.
Optionally, the fixing manner of the adjusting eccentric 120 and the rotating shaft 110 is not limited, and may be set according to practical application requirements, for example, may be fixedly connected by a fixing member (such as a threaded connection) that is provided. In this embodiment, the adjusting eccentric 120 may be integrally provided with the rotating shaft 110, so as to ensure the stability of the connection between the adjusting eccentric 120 and the rotating shaft 110.
Alternatively, the manner of adjustment of the output carrier 150 is not limited, and may be set according to actual application requirements, for example, driving control may be performed by an operator. In this embodiment, the valve driving apparatus 100 may further include a driving device in consideration of the fact that the rotation of the output carrier 150 is generally frequent.
In detail, the driving apparatus may be connected with the output carrier 150 to control rotation of the output carrier 150. And, the type of the driving device is not limited, and may be set according to practical application requirements, for example, may include, but not limited to, a hydraulic driving device, a pneumatic driving device, or an electromagnetic driving device.
In this embodiment, to avoid the problems of energy waste and friction loss of mechanical drive, the driving device may be an electromagnetic driving device.
And, the electromagnetic driving device may be connected to a sub-controller, which may be connected to a general controller. The overall controller may transmit information such as a rotation angle, a rotation time, etc. to be executed for each period to the sub-controller, and the sub-controller may control the electromagnetic driving device to drive the output planet carrier 150 to rotate based on the received information.
Further, considering that the output sun gear 140 needs to drive the output eccentric 130 based on the rotation of the rotating shaft 110 so that the output eccentric 130 coincides with the rotation speed of the adjustment eccentric 120, in this embodiment, a power transmission assembly may be further included to connect the output sun gear 140 and the rotating shaft 110, respectively.
Alternatively, the device or structure included in the power transmission assembly is not limited, and may be set according to actual application requirements, so long as power transmission can be effectively performed. In this embodiment, in conjunction with FIG. 8, the power transmission assembly may include an input sun gear 160 and a transmission structure.
In detail, the input sun gear 160 is sleeved on the rotating shaft 110 and is fixedly connected with the rotating shaft 110, so as to rotate based on the power output by the rotating shaft 110. The transmission structure is connected to the input sun gear 160 and the output sun gear 140, so that the input sun gear 160 can drive the output sun gear 140 to rotate based on the power output by the rotating shaft 110.
By the above arrangement, it is ensured that the rotational speed of the output eccentric 130 is equal to the rotational speed of the output sun gear 140, the rotational speed of the output sun gear 140 is equal to the rotational speed of the input sun gear 160, and the rotational speed of the input sun gear 160 is equal to the rotational speed of the rotating shaft 110. And, the rotational speed of the adjustment eccentric 120 is equal to the rotational speed of the rotating shaft 110, so that the rotational speed of the output eccentric 130 is equal to the rotational speed of the adjustment eccentric 120.
Alternatively, the fixing manner of the input sun gear 160 and the rotating shaft 110 is not limited, and may be set according to practical application requirements, for example, may be fixed by a fixing member (such as a threaded connection) provided. In this embodiment, the input sun gear 160 may be integrally disposed with the rotating shaft 110, and located at a different position of the rotating shaft 110 than the adjusting eccentric 120.
Alternatively, the transmission structure may include a structure or a device not limited, and may be configured according to practical application requirements, as long as the power output from the input sun gear 160 can be effectively transmitted to the output sun gear 140. In the present embodiment, the transmission structure may include a first planetary gear 171, a second planetary gear 173, and a ring gear 175.
In detail, the ring gear 175 may be connected to the first planetary gears 171 and the second planetary gears 173, respectively, that is, the first planetary gears 171 and the second planetary gears 173 may be embedded in the ring gear 175, respectively. Wherein the first planetary gear 171 is disposed at the input sun gear 160 to transmit power of the input sun gear 160 to the ring gear 175. The second planetary gear 173 is provided to the output sun gear 140 to transmit the power of the ring gear 175 to the output sun gear 140.
The number of the first planetary gears 171 may be plural, and the plurality of the first planetary gears 171 may be wound around the input sun gear 160. The number of the second planetary gears 173 may be plural, and the plurality of the second planetary gears 173 may be wound around the output sun gear 140.
In an alternative example, the first planetary gears 171 may be four, and the second planetary gears 173 may be four. Four first planetary gears 171 are wound around the input sun gear 160 at equal intervals, and four second planetary gears 173 are wound around the output sun gear 140 at equal intervals.
Further, to ensure the overall stability of the valve drive device 100 during use, in this embodiment, the valve drive device 100 may further include an input carrier 180.
In detail, the input carrier 180 may be sleeved on the rotating shaft 110, and may be fixedly connected to an external structure, such as a part of the valve driving system 10, so that the valve driving device 100 is fixed to the external structure.
When the input planet carrier 180 is sleeved on the rotating shaft 110, the rotating shaft 110 can rotate relative to the input planet carrier 180, so as to ensure that the rotating shaft 110 can effectively drive the adjusting eccentric 120 and the input sun gear 160.
In summary, according to the valve driving device 100 and the valve driving system 10 provided by the invention, through the matching arrangement of the rotating shaft 110, the adjusting eccentric 120, the output eccentric 130 and the output sun 140, the rotating speeds of the adjusting eccentric 120, the output eccentric 130 and the output sun 140 are the same as the rotating speed of the rotating shaft 110, so that the rotating output eccentric 130 can move relative to the output sun 140 through the matching of the sliding block 131 and the sliding way 141, thereby realizing the adjustment of the axial lead distance between the output eccentric 130 and the adjusting eccentric 120, further completing the adjustment of the offset of the output eccentric 130, so as to conveniently and rapidly adjust the valve 20 arranged on the output eccentric 130, and further improving the inconvenience in adjusting the valve 20 in the prior art.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A valve drive apparatus, characterized by comprising:
a rotating shaft;
the adjusting eccentric wheel is sleeved on the rotating shaft and fixedly connected with the rotating shaft so as to rotate based on the power output by the rotating shaft, wherein the axis of the adjusting eccentric wheel is different from that of the rotating shaft;
the output eccentric wheel is sleeved on the adjusting eccentric wheel and is arranged in a rotating way relative to the adjusting eccentric wheel, wherein the axis of the output eccentric wheel is different from that of the adjusting eccentric wheel;
the output sun gear is provided with a slide rail corresponding to the slide block arranged on the end face of the output eccentric wheel along the radial direction on the end face of the output sun gear, so that the axial lead distance between the output eccentric wheel and the adjustment eccentric wheel is adjusted through the movement of the slide block in the slide rail, and the output sun gear can drive the output eccentric wheel to rotate based on the power output by the rotating shaft when the slide block is arranged on the slide rail;
the output planet carrier is provided with an adjusting structure, the output sun gear and the rotating shaft can rotate relatively, the output planet carrier is coupled with the gear ring and the output sun gear, the output planet carrier is controlled to rotate through the adjusting structure, and accordingly rotation of the output sun gear is adjusted to drive the sliding block to move in the slideway, and accordingly the output eccentric gear is driven to rotate;
the input sun gear is sleeved on the rotating shaft and fixedly connected with the rotating shaft so as to rotate based on the power output by the rotating shaft;
the transmission structure is respectively connected with the input sun gear and the output sun gear, so that the input sun gear can drive the output sun gear to rotate based on the power output by the rotating shaft;
the input planet carrier is sleeved on the rotating shaft and can be fixedly connected with an external structure so that the valve driving device is fixed on the external structure.
2. A valve drive apparatus according to claim 1, further comprising:
and the driving device is connected with the output planet carrier to control the rotation of the output planet carrier.
3. A valve drive apparatus according to claim 2, wherein the drive device is an electromagnetic drive apparatus.
4. A valve drive apparatus according to claim 1, wherein the transmission structure includes:
a first planetary gear provided to the input sun gear;
the second planetary gear is arranged on the output sun gear;
and the gear ring is respectively connected with the first planetary gear and the second planetary gear and is used for driving the second planetary gear to rotate when the first planetary gear rotates under the drive of the input sun gear so as to drive the output sun gear to rotate.
5. A valve-driving device according to claim 1, wherein the adjustment eccentric and the input sun gear are located at different positions of the rotation shaft, respectively, and are provided integrally with the rotation shaft.
6. A valve driving system comprising a plurality of the valve driving apparatuses according to any one of claims 1 to 5, wherein the plurality of the valve driving apparatuses are divided into two groups, one of the two groups of the valve driving apparatuses being for driving an intake valve and the other group being for driving an exhaust valve.
7. A valve-driving system according to claim 6, wherein the rotation shafts of the valve-driving devices belonging to the same group are integrally formed as the same rotation shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811190565.5A CN109184842B (en) | 2018-10-12 | 2018-10-12 | Valve driving device and valve driving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811190565.5A CN109184842B (en) | 2018-10-12 | 2018-10-12 | Valve driving device and valve driving system |
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| CN109184842A CN109184842A (en) | 2019-01-11 |
| CN109184842B true CN109184842B (en) | 2023-08-08 |
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| CN109184842A (en) | 2019-01-11 |
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