CN201071759Y - Timing gear and rotary speed position signal panel combined unit of cam shaft - Google Patents
Timing gear and rotary speed position signal panel combined unit of cam shaft Download PDFInfo
- Publication number
- CN201071759Y CN201071759Y CNU2007200869135U CN200720086913U CN201071759Y CN 201071759 Y CN201071759 Y CN 201071759Y CN U2007200869135 U CNU2007200869135 U CN U2007200869135U CN 200720086913 U CN200720086913 U CN 200720086913U CN 201071759 Y CN201071759 Y CN 201071759Y
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- China
- Prior art keywords
- speed position
- camshaft
- gear
- timing gear
- rotating speed
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- Expired - Fee Related
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a composite unit for a camshaft time gear and a rotary speed position signal panel, which mainly comprises a crank case body, a crankcase box, a crankshaft, the camshaft time gear, a camshaft, a camshaft thrust plate, a gear chamber, a gear chamber cover, a rotary speed position sensor, a sensor cushion block and a crankshaft time gear. The utility model is characterized in that: the rotary speed position sensor (5) is installed in the upper cushion block (4) hole on the gear chamber (2), the camshaft time gear (3) is designed with (12+1) signal induction holes with the diameter of 6 mmrear in the rear lateral surface, the signal induction holes are distributed on the circumference of Phi D, and the circumference exactly passes the installation center of the rotary speed position sensor (5). The utility model satisfies requirements of gear system general arrangement at the an engine front end, so as to eliminate special installation shaft diameter and special installation space of the signal panel; meanwhile, the number of spare parts is reduced to improve design reliability of the engine.
Description
Technical field
The utility model relates to a kind of camshaft timing gear and speed probe, specifically a kind of and matching used camshaft timing gear of engine rotation speed sensor and rotating speed position signal dish combining unit.
Background technique
Continuous progress along with the car engine machine technology, intelligent informationalized requirement to motor car engine is more and more higher, for realizing that motor car engine is farthest controlled, need to understand the information of grasping between each parts of motor car engine, it is camshaft, bent axle, position situations of change such as piston, people design different sensors, and be installed in the control that realizes on the motor car engine motor, in the prior art, camshaft speed position signal dish commonly used is design separately, be installed on the camshaft, it need be on camshaft the installation diameter of axle of design specialized, when the motor general arrangement, need to consider the installing space of signal panel; Because the decentraction problem of signal panel and its rotary inertia produce certain negative effect to the functional reliability of motor, cause the working sensor instability, have reduced the reliability of motor.
Summary of the invention
The purpose of this utility model is for overcoming the problem of above-mentioned existence, providing a kind of and matching used camshaft timing gear of speed probe and rotating speed position signal dish combining unit; This rotating speed position signal dish combining unit can overcome the negative effect that functional reliability produced of the rotary inertia of signal panel decentraction problem and it to motor effectively, has improved the reliability of motor.
The technological scheme that the utility model adopted is: a kind of camshaft timing gear and rotating speed position signal dish combining unit, mainly by crankcase body, bent axle, camshaft timing gear, camshaft, the camshaft thrust plate, gear chamber, gear chamber cover, the rotating speed position transducer, the sensor cushion block, crankshaft timing gear constitutes, it is characterized in that: rotating speed position transducer (5) is installed in the hole on gear chamber (2) cushion block (4), design the induction of signal hole of (12+1) individual Φ 6mm at the trailing flank of camshaft timing gear (3), the induction of signal pore size distribution is on the circumference of φ D, just in time by the mounting center of rotating speed position transducer (5), the induction of signal hole makes sensor sensing to tach signal to this circumference.
Described rotating speed position transducer (5) is installed in the hole on the sensor cushion block (4) by a bolt (12), sensor cushion block (4) is installed on gear chamber (2) by two bolts (11), and camshaft thrust plate (7) is installed on the crankcase body (1) by two bolts (13).
Described α and β value determine by motor general arrangement, and α is the motor first cylinder top dead center position that is used for determining in the automatical control system; β is the correct engagement position that is used for determining camshaft timing gear (3) and crankshaft timing gear (8).
Technique effect of the present utility model is: satisfy the requirement of motor head train general arrangement, remove the special-purpose installation diameter of axle and the special-purpose installing space of signal panel from; Simultaneously, reduce amount of parts, improve the designed reliability of motor.
Description of drawings
Below in conjunction with embodiment the utility model is further described.
Fig. 1 is a sectional structure schematic representation of the present utility model.
Fig. 2 is a backsight structural representation of the present utility model.
In the drawings 1, crankcase body, 2, gear chamber, 3, camshaft timing gear, 4, the sensor cushion block, 5, sensor, 6, camshaft, 7, the camshaft thrust plate, 8, crankshaft timing gear, 9, bent axle, 10, gear chamber cover, 11, bolt, 12, bolt, 13, bolt.
Specific embodiments
As illustrated in fig. 1 and 2, design the induction of signal hole of (12+1) individual Φ 6mm at the trailing flank of camshaft timing gear (3), they are distributed on the circumference of φ D, and this circumference just in time passes through the theoretical mounting center of rotating speed position transducer (5), so that the sensor sensing tach signal; α and β value are determined by the motor general arrangement; α is the motor first cylinder top dead center position that is used for determining in the automatical control system, so that automatical control system accurately carries out injection timing; β is the correct engagement position that is used for determining camshaft timing gear (3) and crankshaft timing gear (8), so that guarantee correct phase relationship between bent axle (9) and the camshaft (6), also guarantees the proper functioning of engine valve actuating mechanism simultaneously.
Rotating speed position transducer (5) is installed in the hole on the sensor cushion block (4) by a bolt (12), sensor cushion block (4) is to be installed on gear chamber (2) by two bolts (11), camshaft thrust plate (7) is installed on the crankcase body (1) by two bolts (13), then, the axial dimension of strict control sensor cushion block (4) and camshaft thrust plate (7) and rotating speed position transducer (5), thereby guarantee that the sensor front end face is 1 ± 0.2mm to the gap of camshaft timing gear trailing flank, this size is that sensor is to necessary between the signal panel.
The rotating speed position transducer of establishing in cushion block (4) hole (5) is a hall sensor, and it is to utilize the principle of Hall effect to make.The rotating speed position transducer is equipped with Hall chip IC in it, Hall chip IC is embedded on the circuit board of control circuit, circuit board closely is abutted against with the Permanent Magnet Steel of establishing, circuit board and Permanent Magnet Steel are contained in respectively on rotating speed position transducer (5) internal frame, establish three wiring end points on rotating speed position transducer (5) internal frame and be connected with circuit board respectively, three lead terminals establishing on the sensor connector socket are connected respectively at the control unit terminal.The signal of hall effect type rotating speed position transducer output is a rectangular pulse, is well suited for being used for the computer numeral system, and the size of its signal voltage has nothing to do with engine speed, still can obtain very high testing precision under the lower-speed state of engine start.In addition, the hall sensor sound construction, volume is little, and is in light weight, and the life-span is long, and is easy for installation, and power consumption is little, frequency height (can reach 1MHZ), vibration resistance, the pollution or the corrosion of not being afraid of dust, greasy dirt, steam and salt fog etc.
Detect by experiment, the utility model avoids redesigning gear chamber cover (10), has satisfied the requirement of motor head train general arrangement.
Claims (3)
1. camshaft timing gear and rotating speed position signal dish combining unit, mainly by crankcase body, bent axle, camshaft timing gear, camshaft, the camshaft thrust plate, gear chamber, gear chamber cover, the rotating speed position transducer, the sensor cushion block, crankshaft timing gear constitutes, it is characterized in that: rotating speed position transducer (5) is installed in the hole of the last cushion block (4) of gear chamber (2), design the induction of signal hole of (12+1) individual Φ 6mm at the trailing flank of camshaft timing gear (3), the induction of signal pore size distribution is on the circumference of φ D, and this circumference just in time passes through the mounting center of rotating speed position transducer (5).
2. a kind of camshaft timing gear according to claim 1 and rotating speed position signal dish combining unit, it is characterized in that: rotating speed position transducer (5) is installed in the hole on the sensor cushion block (4) with bolt (12), with bolt (11) sensor cushion block (4) is installed on the gear chamber (2), camshaft thrust plate (7) is installed on the crankcase body (1) with bolt (13).
3. a kind of camshaft timing gear according to claim 1 and rotating speed position signal dish combining unit is characterized in that: α is used for determining that the motor first cylinder top dead center position, β in the automatical control system are the correct engagement positions that is used for determining camshaft timing gear (3) and crankshaft timing gear (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200869135U CN201071759Y (en) | 2007-09-09 | 2007-09-09 | Timing gear and rotary speed position signal panel combined unit of cam shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200869135U CN201071759Y (en) | 2007-09-09 | 2007-09-09 | Timing gear and rotary speed position signal panel combined unit of cam shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201071759Y true CN201071759Y (en) | 2008-06-11 |
Family
ID=39550317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200869135U Expired - Fee Related CN201071759Y (en) | 2007-09-09 | 2007-09-09 | Timing gear and rotary speed position signal panel combined unit of cam shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201071759Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013020480A1 (en) * | 2011-08-05 | 2013-02-14 | 无锡开普动力有限公司 | Engine camshaft thrusting structure |
| CN103397920A (en) * | 2013-07-02 | 2013-11-20 | 广西玉柴机器股份有限公司 | Signal collecting system of diesel engine camshaft |
| CN106443044A (en) * | 2016-11-08 | 2017-02-22 | 天津雷沃发动机有限公司 | Rotating speed signal sensor assembly structure for engine |
-
2007
- 2007-09-09 CN CNU2007200869135U patent/CN201071759Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013020480A1 (en) * | 2011-08-05 | 2013-02-14 | 无锡开普动力有限公司 | Engine camshaft thrusting structure |
| CN103397920A (en) * | 2013-07-02 | 2013-11-20 | 广西玉柴机器股份有限公司 | Signal collecting system of diesel engine camshaft |
| CN106443044A (en) * | 2016-11-08 | 2017-02-22 | 天津雷沃发动机有限公司 | Rotating speed signal sensor assembly structure for engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080611 Termination date: 20140909 |
|
| EXPY | Termination of patent right or utility model |