CN204225947U - A kind of engine cam timing gear - Google Patents
A kind of engine cam timing gear Download PDFInfo
- Publication number
- CN204225947U CN204225947U CN201420651379.8U CN201420651379U CN204225947U CN 204225947 U CN204225947 U CN 204225947U CN 201420651379 U CN201420651379 U CN 201420651379U CN 204225947 U CN204225947 U CN 204225947U
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- CN
- China
- Prior art keywords
- camshaft
- disk body
- signal disk
- hole
- camshaft signal
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of engine cam timing gear, feature is that camshaft signal disk body is directly installed on camshaft front end by clamping bolt, and adopts cylinder pin hole to add the diplopore position structure of location counterbore.Camshaft signal disk body end face arranges " TOP " towards mark, and identifies with pin-and-hole and locate counterbore on the same line.This body diameter of camshaft signal disk 100mm, thickness 4mm.The recessed tooth of the number of winning the confidence that camshaft signal disk body is arranged, facewidth 7mm is greater than signal panel thickness, tooth depth 6mm, and tooth root tooth top rounding is no more than R0.5mm.Structure is simple, practical, and related components variation is little, and processing cost is low, the accurate value of sensor and anti-interference high.
Description
Technical field
The utility model belongs to engine art, especially a kind of engine cam timing gear.
Background technique
Along with the increasingly stringent of environmental regulation, more and more stricter to the emission standard of motor, state 4 emission standard will be carried out to large diesel engine by country at present, and conventional engines cannot meet state 4 emission request.In order to reduce motor discharge gas contaminant capacity, each engine works generally adopt electronic control technology, and the key parameter in electronic control technology is exactly phase place and the engine speed that will obtain camshaft.Common engine mostly adopts and gathers tach signal at engine snubber or flywheel place, gather cam position signal etc. at camshaft drive gear place, this mode structure relative complex, cause some part of motor to change large, cost is high, the accurate value of sensor and anti-interference difference etc.Therefore, need to provide that a kind of structure is simple, cost is low, the accurate value of sensor and the high engine cam timing gear of anti-interference.
Common engine adopts and gathers tach signal at engine snubber or flywheel place, gather cam position signal at camshaft drive gear place, this mode structure relative complex, cause some part of motor to change large, cost is high, sensor value accuracy and anti-interference difference etc.
Prior art is compared, the beneficial effects of the utility model are: the application's motion camshaft signal disk body is provided with induction of signal tooth, two positioning hole, installs towards mark etc., achieve and measure cam position signal and rotating speed fast and accurately, and the utility model is simple and practical, correlated parts variation is little, processing cost is low, the accurate value of sensor and anti-interference high.
Summary of the invention
The purpose of this utility model is that providing camshaft signal disk to use 45# steel drift pressure or shear forms, be provided with induction of signal tooth, two positioning hole, install towards mark etc., realize cam position signal and rotary speed measurer structure simple, change little, cost is low, the accurate value of sensor and the high a kind of engine cam timing gear of anti-interference.
Technical solution of the present utility model is such: a kind of engine cam timing gear, comprise camshaft, straight pin, camshaft signal disk body, clamping bolt, location, camshaft front end microcephaly, mark is installed, cylinder pin hole, location counterbore, recessed tooth, cross nail, first platform, second platform, it is characterized in that camshaft signal disk body (3) is by straight pin (2), camshaft (1) front-end face is fixed in by clamping bolt (4), camshaft signal disk body (3) center connected with the center hole of camshaft (1) front end after having nail (10) appearance clamping bolt (4) to be inserted through, camshaft signal disk body (3) radial direction has cylinder pin hole (7) hold straight pin (2) to connect through the pin-and-hole inserted in camshaft (1) radial direction, cylinder pin hole (7) is through hole, cross nail (10) to communicate formation counterbore with location counterbore (8), recessed tooth (9) is opened on camshaft signal disk body (3) external diameter.
Recessed tooth (9) has more than one.
Camshaft (1) front axle center hole is screw.
Accompanying drawing explanation
fig. 1 is the assembly structure figure of a kind of engine cam timing gear of the utility model.
Fig. 2 is the camshaft signal disk plan view of a kind of engine cam timing gear of the utility model.
fig. 3 is that the camshaft signal disk of a kind of engine cam timing gear of the utility model is by A-A sectional view in Fig. 2.
reference character: camshaft (1), straight pin (2), camshaft signal disk body (3), clamping bolt (4), location microcephaly, camshaft front end (5), installation identify (6), cylinder pin hole (7), location counterbore (8), recessed tooth (9), cross nail (10), the first platform (11), the second platform (12).
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of engine cam timing gear, comprise camshaft (1), straight pin (2), camshaft signal disk body (3), clamping bolt (4), wherein camshaft signal disk body (3) is positioned on camshaft (1) by straight pin (2), clamping bolt (4) through the mistake nail (10) on camshaft signal disk body (3) and the second platform (12) of fitting, realizes tightening cam axis signal dish body (3).
As shown in Figure 2 and Figure 3, camshaft signal disk body (3) is provided with the recessed tooth (9) for sensor sensing signal, coordinate the location counterbore (8) of location microcephaly, camshaft front end (5), the cylinder pin hole (7) of setting circle pin (2), for laminating or the first platform (11), second platform (12) of pressure-bearing camshaft (1) and clamping bolt (4), to step down clamping bolt (4) and be in the mistake nail (10) of camshaft signal disk body (3) central position, be convenient to processing, mark (6) is installed.
As shown in Figure 2 and Figure 3, cylinder pin hole (7) on camshaft signal disk body (3) and location counterbore (8) form diplopore position structure, straight pin (2) is fixed on camshaft front end through cylinder pin hole (7), location counterbore (8) press-in location microcephaly, camshaft front end (5), play spacing and positioning action, location counterbore (8) is in camshaft signal disk body (3) central position, such diplopore position structure can realize camshaft signal disk precise positioning, ensures the accuracy of signals collecting.And camshaft signal disk body (3) is arranged in the less camshaft of vibration (1) front end and motor head, can improve the anti-interference of sensor value.
As shown in Figure 3, camshaft signal disk body (3) end face setting " TOP " towards installation mark (6), and is installed mark (6) and cylinder pin hole (7) and locates counterbore (8) on the same line, is convenient to install and detect.Camshaft signal disk body (3) external diameter 100mm, thickness 4mm, this design can ensure the cold starting of motor and improve sensor value antijamming capability.
As shown in Figure 3, the recessed tooth (9) of the number of winning the confidence that the with good grounds crank angle of camshaft signal disk body (3) external diameter is arranged, facewidth 7mm is greater than signal panel thickness, tooth depth 6mm, tooth root tooth top rounding is no more than R0.5mm, and this design effectively can ensure the accuracy of sensor value.Ensure that sensor value antijamming capability is started and improves in the cooling of motor.Camshaft signal disk body 3 material 45# steel, easily processes, and process of turning blue can be anticorrosive preferably, and cost of production is low.Camshaft signal disk body is directly installed on camshaft front end by clamping bolt, and adopt cylinder pin hole to add the diplopore position structure of location counterbore, camshaft signal disk precise positioning can be realized, ensure the accuracy of signals collecting, improve the anti-interference of sensor value.
Claims (3)
1. an engine cam timing gear, comprise camshaft, straight pin, camshaft signal disk body, clamping bolt, location, camshaft front end microcephaly, mark is installed, cylinder pin hole, location counterbore, recessed tooth, cross nail, first platform, second platform, it is characterized in that camshaft signal disk body (3) is by straight pin (2), camshaft (1) front-end face is fixed in by clamping bolt (4), camshaft signal disk body (3) center connected with the center hole of camshaft (1) front end after having nail (10) appearance clamping bolt (4) to be inserted through, camshaft signal disk body (3) radial direction has cylinder pin hole (7) hold straight pin (2) to connect through the pin-and-hole inserted in camshaft (1) radial direction, cylinder pin hole (7) is through hole, cross nail (10) to communicate formation counterbore with location counterbore (8), recessed tooth (9) is opened on camshaft signal disk body (3) external diameter.
2., according to a kind of engine cam timing gear according to claim 1, it is characterized in that recessed tooth (9) has more than one.
3., according to a kind of engine cam timing gear according to claim 1, it is characterized in that camshaft (1) front axle center hole is screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420651379.8U CN204225947U (en) | 2014-11-04 | 2014-11-04 | A kind of engine cam timing gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420651379.8U CN204225947U (en) | 2014-11-04 | 2014-11-04 | A kind of engine cam timing gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204225947U true CN204225947U (en) | 2015-03-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420651379.8U Expired - Fee Related CN204225947U (en) | 2014-11-04 | 2014-11-04 | A kind of engine cam timing gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204225947U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218097A (en) * | 2017-05-12 | 2017-09-29 | 广西玉柴机器股份有限公司 | A kind of novel camshaft signal panels |
| CN108894838A (en) * | 2018-09-06 | 2018-11-27 | 广西玉柴机器股份有限公司 | The camshaft signal dish structure of the big hollow out in part |
-
2014
- 2014-11-04 CN CN201420651379.8U patent/CN204225947U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218097A (en) * | 2017-05-12 | 2017-09-29 | 广西玉柴机器股份有限公司 | A kind of novel camshaft signal panels |
| CN107218097B (en) * | 2017-05-12 | 2019-03-26 | 广西玉柴机器股份有限公司 | A kind of novel camshaft signal panels |
| CN108894838A (en) * | 2018-09-06 | 2018-11-27 | 广西玉柴机器股份有限公司 | The camshaft signal dish structure of the big hollow out in part |
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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: 20150325 Termination date: 20201104 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |