CN109695485B - Variable valve phase control system - Google Patents
Variable valve phase control system Download PDFInfo
- Publication number
- CN109695485B CN109695485B CN201811513428.0A CN201811513428A CN109695485B CN 109695485 B CN109695485 B CN 109695485B CN 201811513428 A CN201811513428 A CN 201811513428A CN 109695485 B CN109695485 B CN 109695485B
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- CN
- China
- Prior art keywords
- gear
- control system
- variable valve
- phase control
- valve phase
- 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.)
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- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 230000004044 response Effects 0.000 abstract description 7
- 230000008859 change Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
Images
Classifications
-
- 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
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/34403—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using helically teethed sleeve or gear moving axially between crankshaft and camshaft
-
- 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
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/352—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using bevel or epicyclic gear
-
- 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
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
-
- 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
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
- F01L9/22—Valve-gear or valve arrangements actuated non-mechanically by electric means actuated by rotary motors
-
- 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
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
- F01L9/21—Valve-gear or valve arrangements actuated non-mechanically by electric means actuated by solenoids
- F01L2009/2167—Sensing means
- F01L2009/2169—Position sensors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
The invention discloses a variable valve phase control system, which comprises a shell, an air inlet camshaft, a crankshaft, a gear set, a gear seat and a driving structure for driving the gear seat to move in the shell, wherein the gear set comprises a gear I and a gear III which are arranged on the gear seat and are meshed with each other, the shell is provided with a gear II meshed with the gear I and a gear IV meshed with the gear III, the gear II is connected with the crankshaft through a chain wheel for transmission, and the gear IV is connected with the air inlet camshaft. The variable valve phase control system is reasonable in structural design, adopts a mechanical structure, realizes phase angle adjustment of a camshaft through a worm gear pair, a screw rod pair and a gear pair, and has the advantages that the phase angle adjustment angle is determined by the rotation angle of a motor with a worm shaft, stepless and random adjustment of the phase angle can be realized according to needs, and the response is sensitive.
Description
Technical Field
The invention relates to the technical field of engines, in particular to a variable valve phase control system.
Background
At present, the variable valve timing of the domestic automobile engine adopts an electronic control and hydraulic drive structure, the response speed is slightly delayed, the phase adjustment angle is determined by the oil quantity of the oil pressure, the accuracy is poor, and the response is slow.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a variable valve phase control system to achieve the purpose of sensitive response.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
this variable valve phase control system, including casing and air intake camshaft and bent axle, still include gear train and gear seat and be used for driving the drive structure that the gear seat removed in the casing, the gear train is including establishing engaged with gear I and gear III on the gear seat, be equipped with on the casing with I looks engaged with gear II of gear and with III looks engaged with gear IV of gear, gear II passes through the sprocket with the bent axle and is connected the transmission, and gear IV links to each other with air intake camshaft.
Furthermore, the bottom of the shell is connected with the bottom of the gear seat through a sliding rail.
The driving structure comprises a motor, a motor worm, a worm wheel, a transmission internal thread assembly and a screw rod connected with the gear seat, wherein the motor worm is connected with the screw rod through the worm wheel and the transmission internal thread assembly.
And the gear II is positioned above the gear I, and the gear IV is positioned above the gear III.
And the gear II and the gear IV are respectively connected with the gear seat through corresponding swing arms.
And the gear IV is connected with the air inlet cam shaft in an interference fit manner.
The motor is a direct current stepping motor.
And a position sensor is arranged on the shell corresponding to the swing arm.
Compared with the prior art, the invention has the following advantages:
the variable valve phase control system is reasonable in structural design, adopts a mechanical structure, realizes phase angle adjustment of a camshaft through a worm gear pair, a screw rod pair and a gear pair, and has the advantages that the phase angle adjustment angle is determined by the rotation angle of a motor with a worm shaft, stepless and random adjustment of the phase angle can be realized according to needs, and the response is sensitive.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
fig. 1 is a schematic view of the overall transmission structure of the present invention.
FIG. 2 is an overall external view of the control system of the present invention.
FIG. 3 is a schematic diagram of the overall internal structure of the control system of the present invention.
In the figure:
1. the device comprises a motor worm, a worm wheel and transmission internal thread assembly 2, a screw rod 3, a swing arm I4, a gear I5, a gear II 6, a gear III 7, a gear IV 8, a swing arm II 9, a gear seat 10, a shell 11 and a position sensor 12.
Detailed Description
The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings.
As shown in fig. 1 to 3, the variable valve phase control system includes a housing 11, an intake camshaft, a crankshaft, a gear set, a gear seat 10 and a driving structure for driving the gear seat to move in the housing, the gear set includes a gear i 5 and a gear iii 7 which are arranged on the gear seat and engaged with each other, a gear ii 6 engaged with the gear i 5 and a gear iv 8 engaged with the gear iii 7 are arranged on the housing, the gear ii and the crankshaft are connected through a sprocket for transmission, and the gear iv is connected with the intake camshaft.
The mechanical structure is adopted, the phase angle of the camshaft is adjusted through the worm gear pair, the screw rod pair and the gear pair, the phase adjusting angle is determined by the rotating angle of the motor with the worm shaft, stepless and random adjustment of the phase angle can be achieved according to needs, and response is sensitive.
Preferably, the driving structure comprises a motor, a motor worm 1, a worm wheel and transmission internal thread assembly 2 and a screw rod 3 connected with the gear seat, and the motor worm is connected with the screw rod through the worm wheel and the transmission internal thread assembly. Other structures can be used to drive the gear seat to move in the shell.
The bottom of the shell 11 is connected with the bottom of the gear seat 10 through a sliding rail, so that the gear seat can only move along the axial direction of the screw rod in the shell, and the gear seat is stable and reliable.
The motor is a DC stepping motor. And the accurate adjustment of the phase can be realized by adopting a low-rotating-speed direct-current stepping motor. And a small-modulus 8-head worm gear pair is adopted for transmission, so that the system is more stable and has high precision.
Gear II is located the top of gear I, and gear IV is located gear III top. Gear II and gear IV link to each other with the pinion stand through the swing arm that corresponds respectively, specifically do, gear II links to each other with the pinion stand through swing arm I4, and gear IV links to each other with the pinion stand through swing arm II 9, and two swing arms set up side by side. The gear pair forms a parallelogram motion mechanism with the cam through the swing arm and the gear seat, and the operation is stable and reliable.
And the gear IV is connected with the air inlet cam shaft in an interference fit manner. A position sensor 12 is arranged on the shell corresponding to the swing arm. And data are fed back to the ECU through a position sensor of the swing arm, so that the rotation direction and the rotation angle of the motor are controlled.
The worm of the motor drives the worm wheel to rotate the internal thread sleeve assembly, and pushes the screw to move axially, so that the gear seat 10 moves axially.
Because gear II 6 passes through the sprocket connection transmission with the bent axle, gear II 6 does not take place the phase angle change, according to the reaction of power, gear I5, gear III 7, gear IV 8 produce the rotation as shown by the arrow in figure 1, because gear IV 8 and air intake camshaft interference fit to drive the camshaft and take place the phase angle change, consequently realized the phase control adjustment of air intake camshaft.
The mechanical structure is adopted for transmission control, and the response is sensitive; the phase angle of the camshaft is adjusted through the worm gear pair, the screw rod pair and the gear pair, the phase adjusting angle is determined by the rotating angle of the motor with the worm shaft, and the structure can realize stepless and random adjustment of the phase angle according to requirements.
The above-mentioned features are merely for describing preferred embodiments of the present invention and may be arbitrarily combined to form a plurality of embodiments of the present invention.
The invention is described above with reference to the accompanying drawings, it is obvious that the specific implementation of the invention is not limited by the above-mentioned manner, and it is within the scope of the invention to adopt various insubstantial modifications of the inventive concept and solution, or to apply the inventive concept and solution directly to other applications without modification.
Claims (6)
1. A variable valve phase control system comprising a housing, an intake camshaft, and a crankshaft, characterized in that: the gear set comprises a gear I and a gear III which are arranged on the gear seat and are meshed with each other, the shell is provided with a gear II meshed with the gear I and a gear IV meshed with the gear III, the gear II is connected with a crankshaft through a chain wheel for transmission, and the gear IV is connected with an air inlet camshaft;
the gear II and the gear IV are respectively connected with the gear seat through corresponding swing arms; and the gear IV is connected with the air inlet cam shaft in an interference fit manner.
2. The variable valve phase control system according to claim 1, characterized in that: the bottom of the shell is connected with the bottom of the gear seat through a sliding rail.
3. The variable valve phase control system according to claim 1, characterized in that: the driving structure comprises a motor, a motor worm, a worm wheel, a transmission internal thread assembly and a screw rod connected with the gear seat, wherein the motor worm is connected with the screw rod through the worm wheel and the transmission internal thread assembly.
4. The variable valve phase control system according to claim 1, characterized in that: and the gear II is positioned above the gear I, and the gear IV is positioned above the gear III.
5. The variable valve phase control system according to claim 3, characterized in that: the motor is a direct current stepping motor.
6. The variable valve phase control system according to claim 1, characterized in that: and a position sensor is arranged on the shell corresponding to the swing arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811513428.0A CN109695485B (en) | 2018-12-11 | 2018-12-11 | Variable valve phase control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811513428.0A CN109695485B (en) | 2018-12-11 | 2018-12-11 | Variable valve phase control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109695485A CN109695485A (en) | 2019-04-30 |
| CN109695485B true CN109695485B (en) | 2021-02-19 |
Family
ID=66230507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811513428.0A Active CN109695485B (en) | 2018-12-11 | 2018-12-11 | Variable valve phase control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109695485B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060003951A (en) * | 2004-07-05 | 2006-01-12 | 현대자동차주식회사 | Timing device for variable valve of vehicle |
| CN201810360U (en) * | 2010-10-26 | 2011-04-27 | 刘浩 | Continuously variable valve actuating device for engine |
| CN204082245U (en) * | 2014-09-24 | 2015-01-07 | 成都航空职业技术学院 | The electrodeless variable valve gear of a kind of motor |
| CN106523067A (en) * | 2016-12-20 | 2017-03-22 | 江苏三能动力总成有限公司 | Engine continuously variable valve lift structure |
| CN206377211U (en) * | 2016-11-14 | 2017-08-04 | 舍弗勒技术股份两合公司 | Worm gear device |
| CN108825325A (en) * | 2018-09-07 | 2018-11-16 | 吉林大学 | A kind of variable valve mechanism for engine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020170513A1 (en) * | 1999-09-22 | 2002-11-21 | Aimbridge Pty Ltd | Phase control mechanism |
-
2018
- 2018-12-11 CN CN201811513428.0A patent/CN109695485B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060003951A (en) * | 2004-07-05 | 2006-01-12 | 현대자동차주식회사 | Timing device for variable valve of vehicle |
| CN201810360U (en) * | 2010-10-26 | 2011-04-27 | 刘浩 | Continuously variable valve actuating device for engine |
| CN204082245U (en) * | 2014-09-24 | 2015-01-07 | 成都航空职业技术学院 | The electrodeless variable valve gear of a kind of motor |
| CN206377211U (en) * | 2016-11-14 | 2017-08-04 | 舍弗勒技术股份两合公司 | Worm gear device |
| CN106523067A (en) * | 2016-12-20 | 2017-03-22 | 江苏三能动力总成有限公司 | Engine continuously variable valve lift structure |
| CN108825325A (en) * | 2018-09-07 | 2018-11-16 | 吉林大学 | A kind of variable valve mechanism for engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109695485A (en) | 2019-04-30 |
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| SE01 | Entry into force of request for substantive examination | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 213200 No.97 Kejiao Road, Jintan District, Changzhou City, Jiangsu Province Patentee after: JIANGSU SANNENG POWER ASSEMBLY CO.,LTD. Patentee after: Dacheng Automobile Group Co.,Ltd. Address before: 213200 No.97 Kejiao Road, Jintan District, Changzhou City, Jiangsu Province Patentee before: JIANGSU SANNENG POWER ASSEMBLY CO.,LTD. Patentee before: DORCEN AUTOMOBILE Co.,Ltd. |