CN203962066U - A kind of camshaft of being convenient to assembling - Google Patents
A kind of camshaft of being convenient to assembling Download PDFInfo
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- CN203962066U CN203962066U CN201420398145.7U CN201420398145U CN203962066U CN 203962066 U CN203962066 U CN 203962066U CN 201420398145 U CN201420398145 U CN 201420398145U CN 203962066 U CN203962066 U CN 203962066U
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- fixed shaft
- cam
- positioning convex
- convex strips
- camshaft
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Abstract
The utility model discloses a kind of camshaft of being convenient to assembling, comprise the parts such as axis body and left cam, right cam, it coordinates by left positioning convex strip and right positioning convex strip and left locating slot and right locating slot, make left cam and right cam can keep the phase difference of 90 °, and ensured that 2 cams can not produce the slip on circumferencial direction with respect to axis body.When such camshaft assembles, demoulding operation no longer becomes inevitable step, thereby more for convenience, and reduced cost of labor.
Description
Technical field
The present invention relates to motor vehicle fittings technical field, especially relate to a kind of camshaft of being convenient to assembling.
Background technique
Camshaft generally includes axis body and at least 2 cams, is parts in piston engine.Its effect is the opening and closing of controlling valve.Although the rotating speed of camshaft is the half (rotating speed at two stroke engine convexity wheel shaft is identical with bent axle) of bent axle in four stroke engine, but its rotating speed is still very high conventionally, and need to bear very large moment of torsion, therefore very high in the requirement aspect intensity and support to camshaft in design.Its material is generally special cast iron, also has once in a while the forging of employing.Because valve motion rule is related to power and the service performance of a motor, therefore camshaft design in the design process of motor in occupation of consequence very.But, because cam is mounted in the process on axis body, on axis body, conventionally there is oil film, be then easy to cause skidding of cam.For this reason, there is producer to take axis body to carry out the mode of demoulding processing.But which is comparatively loaded down with trivial details, and increase cost of labor.
Summary of the invention
The object of this invention is to provide a kind of camshaft of being convenient to assembling, it has simple, the lower-cost feature of assembling.
The technical solution adopted in the present invention is: a kind of camshaft of being convenient to assembling, comprise axis body and left cam, right cam, wherein, this axis body comprises left fixed shaft and right fixed shaft, and this left side, right fixed shaft connects by a positioning step, simultaneously, the left retainer ring that this left cam has and this left fixed shaft matches, the right retainer ring that this right cam has and this right fixed shaft matches, and this left side, the phase place of right cam is respectively 0o and 90 °, described left fixed shaft is provided with 3 left positioning convex strips, the phase place of these 3 left positioning convex strips is respectively: 90 °, 180 °, 270 °, and in this left positioning ring, be provided with and left locating slot that these 3 left positioning convex strips match, and, described right fixed shaft is provided with 3 right positioning convex strips, the phase place of these 3 right positioning convex strips is respectively: 180 °, 270 °, 360 °, and in this right positioning ring, be provided with and right locating slot that these 3 right positioning convex strips match, simultaneously, this left retainer ring, on this right retainer ring, be all bolted with and be compatible with respectively this left fixed shaft, the fastening screw trip bolt of the sidewall of right fixed shaft, and, the left end of this left fixed shaft is one-body molded the left screw rod extending left, the right-hand member of this right fixed shaft is one-body molded the right screw rod extending to the right, and this left side, on right screw rod, be bolted with respectively auxiliary nut.
The advantage that the present invention has is: assembling is simple, cost is lower.Not only the coordinating by positioning convex strip (comprising left positioning convex strip and right positioning convex strip) and locating slot (comprising left locating slot and right locating slot) of camshaft of being convenient to assembling of the present invention, make 2 cams (comprising left cam and right cam) can keep the phase difference of 90 °, and ensured that 2 cams can not produce the slip on circumferencial direction with respect to axis body.When such camshaft assembles, demoulding operation no longer becomes inevitable step, thereby more for convenience, and reduced cost of labor.
Brief description of the drawings
Below in conjunction with drawings and Examples, the present invention is further described:
Fig. 1 is that the camshaft of being convenient to assembling of embodiments of the invention is looked sectional view the master of decomposing state;
Fig. 2 is that the A-A of Fig. 1 is to view;
Fig. 3 is that the B-B of Fig. 1 is to view;
Fig. 4 is the left view of left cam of the present invention.
In figure: 10, axis body, 11, left fixed shaft, 111, left positioning convex strip, 12, right fixed shaft, 121, right positioning convex strip, 13, positioning step, 14, left screw rod, 15, right screw rod; 21, left cam, 211, left retainer ring, 212, left locating slot, 22, right cam, 221, right retainer ring, 222, right locating slot; 30, fastening screw trip bolt; 40, auxiliary nut.
Embodiment
Embodiment, is shown in shown in Fig. 1 to Fig. 4: a kind of camshaft of being convenient to assembling, comprises axis body 10 and left cam 21, right cam 22.Wherein, this axis body 10 comprises left fixed shaft 11 and right fixed shaft 12, and this left fixed shaft 11 is connected by a positioning step 13 with this right fixed shaft 12.That is to say the left and right that point occupy this positioning step 13 of this left fixed shaft 11 and these right fixed shaft 12 symmetries.Meanwhile, this left retainer ring 211 that left cam 21 has and this left fixed shaft 11 matches, this right retainer ring 221 that right cam 22 has and this right fixed shaft 12 matches., this left retainer ring 211 is enclosed within on this left fixed shaft 11, this right retainer ring 221 is enclosed within on this right fixed shaft 12.And the phase place of this left cam 21 and this right cam 22 is respectively 0 ° and 90 °.In the present embodiment, the phase place of setting this left cam 21 is 0 °, that is, from the left side of this camshaft, the position at the line place of the shaft axis of the protuberance of this left cam 21 and axis body 10 is 0 °.The concept of following phase place is identical.Further say, this left fixed shaft 11 is provided with 3 left positioning convex strips 111.The phase place of these 3 left positioning convex strips 111 is respectively: 90 °, 180 °, 270 °, and in this left positioning ring 211, be provided with and these 3 the left locating slots 212 that left positioning convex strip 111 matches., this left positioning convex strip 111 being inserted in this left locating slot 212 of correspondence between two.Equally, this right fixed shaft 12 is provided with 3 right positioning convex strips 121, and the phase place of these 3 right positioning convex strips 121 is respectively: 180 °, 270 °, 360 °, and in this right positioning ring 221, be provided with and these 3 the right locating slots 222 that right positioning convex strip 121 matches.The so-called concept matching is same as aforementioned this left positioning convex strip 111 and is compatible with the concept of this left locating slot 212 herein.Like this, ensured that this left cam 21 and right cam 22 have phase difference accurately, and can not produce rotation.Obviously, the trend of aforementioned left positioning convex strip 111 and right positioning convex strip 121 is all same as the trend of the shaft axis of this axis body 10.Meanwhile, on the sidewall of this left retainer ring 211, this right retainer ring 221, be all bolted with the fastening screw trip bolt 30 of the sidewall that is compatible with respectively this left fixed shaft 11, right fixed shaft 12.That is, the inner of this fastening screw trip bolt 30 can hold out against on the sidewall of this left fixed shaft 11 or this right fixed shaft 12, further to ensure that this left cam 21 and right cam 22 can not come off.And the left end of this left fixed shaft 11 is one-body molded that the right-hand member of the left screw rod 14 that extends, this right fixed shaft 12 is one-body molded the right screw rod 15 extending to the right left, and be bolted with respectively auxiliary nut 40 on this left screw rod 14, right screw rod 15., these 2 fastening nuts 40 can ensure respectively after screwing that this left cam 21 and right cam 22 can not come off from this left fixed shaft 11 and right fixed shaft 12.
The foregoing is only the preferred embodiments of the present invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes specification of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (1)
1. be convenient to the camshaft of assembling for one kind, comprise axis body (10) and left cam (21), right cam (22), wherein, this axis body (10) comprises left fixed shaft (11) and right fixed shaft (12), and this left side, right fixed shaft (11, 12) connect by a positioning step (13), simultaneously, this left retainer ring (211) that left cam (21) has and this left fixed shaft (11) matches, this right retainer ring (221) that right cam (22) has and this right fixed shaft (12) matches, and this left side, right cam (21, 22) phase place is respectively 0 ° and 90 °, it is characterized in that: described left fixed shaft (11) is provided with 3 left positioning convex strips (111), the phase place of these 3 left positioning convex strips (111) is respectively: 90 °, 180 °, 270 °, and in this left positioning ring (211), be provided with and left locating slot (212) that these 3 left positioning convex strips (111) match, and, described right fixed shaft (12) is provided with 3 right positioning convex strips (121), the phase place of these 3 right positioning convex strips (121) is respectively: 180 °, 270 °, 360 °, and in this right positioning ring (221), be provided with and right locating slot (222) that these 3 right positioning convex strips (121) match, simultaneously, this left retainer ring (211), on this right retainer ring (221), be all bolted with and be compatible with respectively this left fixed shaft (11), the fastening screw trip bolt (30) of the sidewall of right fixed shaft (12), and, the left end of this left fixed shaft (11) is one-body molded the left screw rod (14) extending left, the right-hand member of this right fixed shaft (12) is one-body molded the right screw rod (15) extending to the right, and this left side, right screw rod (14, 15) on, be bolted with respectively auxiliary nut (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420398145.7U CN203962066U (en) | 2014-07-18 | 2014-07-18 | A kind of camshaft of being convenient to assembling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420398145.7U CN203962066U (en) | 2014-07-18 | 2014-07-18 | A kind of camshaft of being convenient to assembling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203962066U true CN203962066U (en) | 2014-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420398145.7U Active CN203962066U (en) | 2014-07-18 | 2014-07-18 | A kind of camshaft of being convenient to assembling |
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| Country | Link |
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| CN (1) | CN203962066U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104624902A (en) * | 2014-12-04 | 2015-05-20 | 张斐斐 | Cam device of cold header |
-
2014
- 2014-07-18 CN CN201420398145.7U patent/CN203962066U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104624902A (en) * | 2014-12-04 | 2015-05-20 | 张斐斐 | Cam device of cold header |
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