CN205206898U - Cam structure - Google Patents
Cam structure Download PDFInfo
- Publication number
- CN205206898U CN205206898U CN201520933877.6U CN201520933877U CN205206898U CN 205206898 U CN205206898 U CN 205206898U CN 201520933877 U CN201520933877 U CN 201520933877U CN 205206898 U CN205206898 U CN 205206898U
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- CN
- China
- Prior art keywords
- axostylus axostyle
- cam
- oilhole
- cover
- offers
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a cam structure, including axostylus axostyle and axle wand core, be provided with the axostylus axostyle cover on the axostylus axostyle, the axostylus axostyle is sheathe in and is provided with the internal thread, seted up the shaft hole along the central line of axostylus axostyle cover, first constant head tank has been seted up to the outer wall of axostylus axostyle cover, and first oil groove has radially been seted up to the outer wall of axostylus axostyle cover, is provided with first oilhole on the first oil groove, and first oilhole communicates with each other with the shaft hole, and the cover is equipped with the backstop circle on the axostylus axostyle the utility model discloses has easy change, convenient maintenance, increase of service life, beneficial effect such as reduce cost.
Description
Technical field
The utility model relates to a kind of camshaft structure.
Background technique
Existing engine combustion process mainly comprises air inlet, compression, power and exhaust, and wherein, air inlet is that piston comes downwards to lower dead centre from upper dead center, air intake valve 51 is opened, and drain tap 52 is closed, now, generating portion negative pressure of vacuum in cylinder 5, sucks in cylinder 5 by gas-air mixture, compression stroke, piston goes upward to upper dead center from lower dead centre, and now air valve is closed, and outlet valve is opened, and the waste gas of burning in cylinder 5, drains in air through drain tap 52, the primary component controlling switch between its air intake valve 51 of engine and drain tap 52 is camshaft, existing camshaft is mainly one-body molded on axostylus axostyle intake cam and exhaust cam, to contact with the Rocker arm 5 11 of air intake valve 51 and drain tap 52 respectively, make intake cam and exhaust cam form certain stagger angle to set up, reach control air inlet, the opening and closing of drain tap 52, due to the intake cam on existing camshaft extremely exhaust cam be one-body molded with axostylus axostyle, therefore the angle staggered between the two is in fixing shape, when carrying out engine exploitation, intake cam and the exhaust cam of different various different offset angular specification must be made, cost is higher, in addition, existing camshaft structure, its intake cam and exhaust cam one-body molded on axostylus axostyle, when when camshaft, intake cam, exhaust cam or axostylus axostyle, any one is damaged, camshaft just wants whole replacing, reduces the working life of whole camshaft.
Therefore those skilled in the art are devoted to develop a kind of camshaft reduced costs.
Model utility content
Because the above-mentioned defect of prior art, technical problem to be solved in the utility model is a kind of camshaft reduced costs of exploitation.
For achieving the above object, the utility model provides provides a kind of cam structure, comprises axostylus axostyle and axostylus axostyle core; Axostylus axostyle is provided with axostylus axostyle cover; Center line along axostylus axostyle cover offers axis hole, and the outer wall of axostylus axostyle cover offers the first locating slot, and the outer wall radial direction of axostylus axostyle cover offers the first oil groove, and the first oil groove is provided with the first oilhole, the first oilhole communicates with axis hole, and shaft rod upper sleeve is provided with Sealing shield ring;
Axostylus axostyle cover is arranged with the first cam, spacer ring and the second cam from top to bottom successively; The outer wall of the first cam offers the second oilhole, the inwall of the first cam offers several the second locating slots, be provided with the first locating stud between first locating slot and the second locating slot, the first cam is provided with the first damping hole vertically, and the first damping hole communicates with the second oilhole;
Second cam is provided with the second damping hole, the inwall of the second cam is provided with the 3rd locating slot; The second locating stud is provided with between 3rd locating slot and the first locating slot;
Axostylus axostyle core comprises shaft, and shaft top is provided with termination, termination is provided with and holds groove; Center line along shaft offers oil duct, and oil duct is with to hold groove through;
The middle part of shaft is provided with the second oil groove, the second oil groove is provided with the 4th oilhole, the 4th oilhole and oil duct through; Shaft successively through the second cam, spacer ring and the first cam, and is arranged in axis hole.
As preferably, the center line along spacer ring offers perforation, and spacer ring is set in axostylus axostyle by perforation and puts.
The beneficial effects of the utility model are: the utility model has easy replacing, and convenient for maintaining increases the service life, and the beneficial effect such as to reduce costs.
Accompanying drawing explanation
Fig. 1 is the utility model decomposition texture schematic diagram.
Fig. 2 is the structural representation of an embodiment.
Fig. 3 is sectional structure schematic diagram of the present utility model.
Fig. 4 is embodiment schematic diagram.
Embodiment
Below in conjunction with drawings and Examples
The utility model is described in further detail:
As Figure 1-Figure 4, a kind of cam structure, comprises axostylus axostyle 1 and axostylus axostyle core 11; Axostylus axostyle 1 is provided with axostylus axostyle cover 12, axostylus axostyle cover 12 is provided with internal thread 122; Center line along axostylus axostyle cover 12 offers axis hole 121, the outer wall of axostylus axostyle cover 12 offers the first locating slot 123, the outer wall radial direction of axostylus axostyle cover 12 offers the first oil groove 124, first oil groove 124 is provided with the first oilhole 125, first oilhole 125 communicates with axis hole 121, axostylus axostyle 1 is arranged with Sealing shield ring 126; This Sealing shield ring 126 is for carrying out spacing to the first cam 21.
Axostylus axostyle cover 12 is arranged with the first cam 21, spacer ring 3 and the second cam 22 from top to bottom successively; The outer wall of the first cam 21 offers the second oilhole 213, the inwall of the first cam 21 offers several the second locating slots 212, the first locating stud 4 is provided with between first locating slot 123 and the second locating slot 212, first cam 21 is provided with the first damping hole 211, first damping hole 211 vertically and communicates with the second oilhole 213;
Second cam 22 is provided with the second damping hole 221 and the 3rd oilhole 223, second damping hole 221 communicates with the 3rd oilhole 223, the inwall of the second cam 22 is provided with the 3rd locating slot 222; The second locating stud 41 is provided with between 3rd locating slot 222 and the first locating slot 123.The second locating slot 212 in the utility model and the 3rd locating slot 222 is corresponding with the first locating slot 123 arranges.
Axostylus axostyle core 11 comprises shaft 111, and shaft 111 top is provided with termination 112, termination 112 is provided with and holds groove 113; Center line along shaft 111 offers oil duct 114, and oil duct 114 is with to hold groove 113 through;
The middle part of shaft 111 is provided with that the second oil groove 115, second oil groove 115 to be provided with the 4th oilhole the 116, four oilhole 116 through with oil duct 114; The bottom of shaft 111 is provided with outside thread 117; Shaft 111 successively through the second cam 22, spacer ring 3 and the first cam 21, and is arranged in axis hole 121, and shaft 111 and axostylus axostyle are overlapped 12 and be connected with outside thread 117 by internal thread 122.Be connected with outside thread 117 by internal thread 122, can conveniently to replacing and the maintenance of the second cam 22, spacer ring 3, first cam 21 and axostylus axostyle 1.
Center line along spacer ring 3 offers perforation 31, and spacer ring 3 is set on axostylus axostyle cover 12 by perforation 31.This spacer ring 3 between the first cam 21 and the second cam 22, and is fitted with the first cam 21 and the second cam 22.
When engine manufacturer is for carrying out engine air admittance valve 51 and drain tap 52 opening and closing test, first the first cam 21 can be socketed on axostylus axostyle cover 12, first cam 21 is adjusted to required angle, after adjusting, first locating stud 4 is embedded between the second locating slot 212 and the first locating slot 123 again, thus fix the angle of the first cam 21.Perforation 31 is utilized by spacer ring 3 to be socketed on axostylus axostyle cover 12 subsequently, the lower end of the first cam 2 and Sealing shield ring 126 are fitted, fit in the upper end of the first cam 21 and the lower end of spacer ring 3, again the second cam 22 is set on axostylus axostyle cover 12 subsequently, now fit in the lower end of the second cam 22 and the upper end of spacer ring 3, second cam 22 is being adjusted to required angle, after adjusting, again the second locating stud 41 is embedded between the 3rd locating slot 222 and the first locating slot 123, thus the angle of fixing after the second cam 22 adjustment, thus make the angle forming presumptive test between the first cam 21 and the second cam 22.The camshaft that first cam 21 and the second cam 22 just can be preset rear angle by manufacturer is subsequently arranged in engine cylinder 5, and make air intake valve 51 and the drain tap 52 of the first cam 21 and the corresponding engine of the second cam 22 difference, subsequently, start the motor with assembling cam shaft, rotate to drive camshaft, now, camshaft in rotation contacts air intake valve 51 and the Rocker arm 5 11 of drain tap 52 according to the first cam 21 with the angle of assembling of the second cam 22, obtains the test result of engine with this.Simultaneously, while camshaft carries out operating, hold groove 113 be injected into oil duct 114 by logical for lubricant oil, centrifugal action when utilizing camshaft to rotate, can the lubricant oil in oil duct 114 be flow in the first oilhole 125 through the 4th oilhole 116, through the second damping hole 221 and the first damping hole 211, flowed out by the 3rd oilhole 223 and the second oilhole 213, thus utilize lubricant oil to play lubrication to the surface of the first cam 21 and the second cam 22 and Rocker arm 5 11, reduce the heat energy rubbing and produce, with increase the air intake valve 51 of engine and drain tap 52 than the smoothness with camshaft, effectively extend working life.
The utility model can convert arbitrarily the angle of the first cam 21 and the second cam 22, when manufacturer carries out engine development and testing, can according to needed for test, fast the first cam 21 and the second cam 22 are adjusted to required angle, effectively raise the testing efficiency of engine exploitation, moreover, do not need to change camshaft through test different amount, effectively save cost, in addition when the first cam 21, second cam 22 or axostylus axostyle 1 damage, can change separately, need not change whole device again, effectively save cost.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to design of the present utility model without the need to creative work.Therefore, all technician in the art according to design of the present utility model on the basis of existing technology by the available technological scheme of logical analysis, reasoning, or a limited experiment, all should by the determined protection domain of claims.
Claims (2)
1. a cam structure, is characterized in that: comprise axostylus axostyle (1) and axostylus axostyle core (11); Described axostylus axostyle (1) is provided with axostylus axostyle cover (12); Center line along described axostylus axostyle cover (12) offers axis hole (121), the outer wall of described axostylus axostyle cover (12) offers the first locating slot (123), the outer wall radial direction of described axostylus axostyle cover (12) offers the first oil groove (124), described first oil groove (124) is provided with the first oilhole (125), described first oilhole (125) communicates with described axis hole (121), described axostylus axostyle (1) is arranged with Sealing shield ring (126);
Described axostylus axostyle cover (12) is arranged with the first cam (21), spacer ring (3) and the second cam (22) from top to bottom successively; The outer wall of described first cam (21) offers the second oilhole (213), the inwall of described first cam (21) offers several the second locating slots (212), the first locating stud (4) is provided with between described first locating slot (123) and described second locating slot (212), described first cam (21) is provided with the first damping hole (211) vertically, and described first damping hole (211) communicates with described second oilhole (213);
Described second cam (22) is provided with the second damping hole (221), and the inwall of described second cam (22) is provided with the 3rd locating slot (222); The second locating stud (41) is provided with between described 3rd locating slot (222) and described first locating slot (123);
Described axostylus axostyle core (11) comprises shaft (111), and described shaft (111) top is provided with termination (112), described termination (112) is provided with and holds groove (113); Center line along described shaft (111) offers oil duct (114), and described oil duct (114) is with described to hold groove (113) through;
The middle part of described shaft (111) is provided with the second oil groove (115), described second oil groove (115) is provided with the 4th oilhole (116), described 4th oilhole (116) is through with described oil duct (114); Described shaft (111) successively through described second cam (22), spacer ring (3) and described first cam (21), and is arranged in described axis hole (121).
2. cam structure as claimed in claim 1, it is characterized in that: the center line along described spacer ring (3) offers perforation (31), described spacer ring (3) is set on described axostylus axostyle cover (12) by described perforation (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520933877.6U CN205206898U (en) | 2015-11-23 | 2015-11-23 | Cam structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520933877.6U CN205206898U (en) | 2015-11-23 | 2015-11-23 | Cam structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205206898U true CN205206898U (en) | 2016-05-04 |
Family
ID=55844623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520933877.6U Withdrawn - After Issue CN205206898U (en) | 2015-11-23 | 2015-11-23 | Cam structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205206898U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105386804A (en) * | 2015-11-23 | 2016-03-09 | 重庆祥吉机械制造有限公司 | Cam structure |
-
2015
- 2015-11-23 CN CN201520933877.6U patent/CN205206898U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105386804A (en) * | 2015-11-23 | 2016-03-09 | 重庆祥吉机械制造有限公司 | Cam structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160504 Effective date of abandoning: 20171215 |