CN209277964U - A kind of large and medium-sized use for diesel engine sectional camshaft component of machinery fuel feeding - Google Patents
A kind of large and medium-sized use for diesel engine sectional camshaft component of machinery fuel feeding Download PDFInfo
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- CN209277964U CN209277964U CN201821939080.7U CN201821939080U CN209277964U CN 209277964 U CN209277964 U CN 209277964U CN 201821939080 U CN201821939080 U CN 201821939080U CN 209277964 U CN209277964 U CN 209277964U
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Abstract
The utility model discloses a kind of large and medium-sized use for diesel engine sectional camshaft components of mechanical fuel feeding, including six roots of sensation segmentation axis body, two the first shaft couplings, two the second shaft couplings and two third shaft couplings, exhaust cam, admission cam and fuel cam made of sequentially one forging are set on each segmentation axis body, the segmentation axis body, by shaft coupling support connection, is fastened between segmentation axis body, the shaft coupling by being connected after the adjustable positioning of positioning pin by hexagon socket head cap screw according to the cylinder working order of diesel engine.Unitary cam structure effectively prevents in diesel engine operational process, it may occur however that the problem of cam angle degree deviates.Camshaft easily facilitates dismounting and maintenance, dismounts space needed for saving by six shaft coupling segmentation connections.The different angle of location hole on shaft coupling designs, and ensure that the accurate of distribution oil supply angle.
Description
Technical field
The utility model relates to engine art more particularly to a kind of large and medium-sized use for diesel engine segmented of mechanical fuel feeding are convex
Axle assembly.
Background technique
When mechanical fuel feeding diesel engine work, camshaft is by the circular motion of crankshaft, and by tappet, the components such as rocker arm are passed
It passs, is transformed into the linear running of inlet and outlet valve rod, accurately the opening and closing of control air inlet and exhaust valve on time；By injection pump
The transmitting of the components such as idler wheel, tappet, the accurately opening and closing of control oil-fuel injector needle-valve on time.Camshaft has combined type and whole
Body formula, it is large and medium-sized in, on low-speed diesel engine, mostly use assembled camshaft.Assembled camshaft is that axis and cam are made respectively
It is assembled into camshaft after making, carries out single cylinder timing adjustment when being conducive to assembly although with this kind design, but there are assembly technologies
It is more demanding, and in diesel engine operational process, it may occur however that such disadvantage such as cam angle degree offset.
The information for being disclosed in the background technology part, which only refers to, is increasing the reason to the general background technology of the utility model
Solution, and be not construed as recognizing or implying in any form that information composition is already known to those of ordinary skill in the art
The prior art.
Utility model content
For overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of large and medium-sized bavins of mechanical fuel feeding
Oil machine sectional camshaft component.
The purpose of this utility model is implemented with the following technical solutions:
A kind of large and medium-sized use for diesel engine sectional camshaft component of machinery fuel feeding, including 6 segmentation axis bodies and shaft coupling,
The every segmentation axis structure is identical, and the shaft coupling includes two the first shaft couplings, two the second shaft couplings and two the
It is convex that exhaust cam made of sequentially one forging, admission cam and fuel oil is arranged in three shaft couplings on each segmentation axis body
Wheel, the segmentation axis body pass through shaft coupling support connection, the segmentation axis body, connection according to the cylinder working order of diesel engine
It is fastened between joint by being connected after the adjustable positioning of positioning pin by hexagon socket head cap screw.
Preferably, uniformly distributed on the shaft shoulder at the segmentation axis body both ends to open up multiple through-holes, one of them described through-hole
For axis body location hole, other through-holes are axis body bolt hole.
Preferably, the quantity of the axis body bolt hole on the shaft shoulder of every one end of the segmentation axis body is 11, the axis of two sides
Body location hole is 0 ° in the angle of axis projection.
Preferably, the diameter of the perforation oil duct axial in the inside setting of segmentation axis body, the perforation oil duct is φ 75mm.
Preferably, two end sides of first shaft coupling it is all uniformly distributed open up 12 through-holes, one of them described through-hole
For the first shaft coupling location hole, other through-holes are the first coupling bolt hole, and the first coupling bolt hole of two sides is in axial direction
The angle of projection is 120 °.
Preferably, two end sides of second shaft coupling it is all uniformly distributed open up 12 through-holes, one of them described through-hole
For the second shaft coupling location hole, other through-holes are the second coupling bolt hole, and the second coupling bolt hole of two sides is in axial direction
The angle of projection is 180 °.
Preferably, two end sides of the third shaft coupling it is all uniformly distributed open up 12 through-holes, one of them described through-hole
For third shaft coupling location hole, other through-holes are third coupling bolt hole, and the third coupling bolt hole of two sides is in axial direction
The angle of projection is 120 °.
Preferably, the axis body location hole, axis body bolt hole, the first shaft coupling location hole, the first coupling bolt hole,
Two shaft coupling location holes, the second coupling bolt hole, third shaft coupling location hole and the diameter in third coupling bolt hole are
25mm, and match corresponding hexagon socket head cap screw and positioning pin.
Preferably, the segmentation axis body material is toughness and rigidity of the 18CrNiMo7-6 to improve camshaft.
Compared with prior art, it the utility model has the beneficial effects that: due to being designed as unitary cam, effectively prevents
In diesel engine operational process, it may occur however that the problem of cam angle degree deviates.One-piece camshaft is connected by six shaft coupling segmentations
It connects, easily facilitates dismounting and maintenance, dismount space needed for saving.The different angle of location hole on shaft coupling designs, and guarantees
Distribution oil supply angle it is accurate, by the cooperation of rigging position between the dowel hole of two sides, both ensure that each segmentation axis body
Between assemble inconvenience that is correct, while reducing the manufacture of a variety of shaft couplings.
Detailed description of the invention
Fig. 1 is a kind of assembly structure diagram of the large and medium-sized use for diesel engine sectional camshaft component of mechanical fuel feeding；
Fig. 2 is the side view for being segmented axis body；
Fig. 3 is the cross-sectional view for being segmented axis body and pressing the direction A-A；
Fig. 4 is the structural schematic diagram of the first shaft coupling；
Fig. 5 is the side view of first shaft coupling one end side direction；
Fig. 6 is the cross-sectional view by B-B in Fig. 5；
Fig. 7 is the side view of another extreme direction of the first shaft coupling；
Fig. 8 is the side view of second shaft coupling one end side direction；
Fig. 9 is the side view in the second shaft coupling another side direction；
Figure 10 is the side view of third shaft coupling one end side direction；
Figure 11 is the side view in third shaft coupling another side direction；
Figure 12 is the side view in a direction of positioning pin.
In figure: 1, being segmented axis body；11, axis body location hole；12, axis body bolt hole；2, the first shaft coupling；21, the first shaft coupling
Save location hole；22, the first coupling bolt hole；3, the second shaft coupling；31, the second shaft coupling location hole；32, the second shaft coupling spiral shell
Keyhole；4, third shaft coupling；41, third shaft coupling location hole；42, third coupling bolt hole；5, exhaust cam；6, air inlet is convex
Wheel；7, fuel cam；8, positioning pin.
Specific embodiment
Below with reference to the attached drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out clear
Chu is fully described by, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole realities
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, fall within the protection scope of the utility model.
It should be noted that it can be directly on another component when component is referred to as " being fixed on " another component
Or there may also be components placed in the middle.When a component is considered as " connection " another component, it, which can be, is directly connected to
To another component or it may be simultaneously present component placed in the middle.When a component is considered as " being set to " another component, it
It can be and be set up directly on another component or may be simultaneously present component placed in the middle.Term as used herein is " vertical
", " horizontal ", "left", "right" and similar statement for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein includes
Any and all combinations of one or more related listed items.
Referring to Fig. 1-Figure 12, a kind of large and medium-sized use for diesel engine sectional camshaft component of machinery fuel feeding, including segmentation axis
Body 1, the first shaft coupling 2, the second shaft coupling 3, third shaft coupling 4.
Be segmented axis body 1, the first shaft coupling 2, the second shaft coupling 3, between third shaft coupling 4 by hexagon socket head cap screw company
It connects.
It is segmented axis body 1 and is arranged 6, every 1 structure of the segmentation axis body is identical.
The respectively setting two of first shaft coupling 2, the second shaft coupling 3, third shaft coupling 4.
Axis body 1 is segmented according to the cylinder working order of diesel engine by shaft coupling support connection, correspondingly, two the
The sequence arrangement of one the second shaft coupling 3 of 2, two, shaft coupling and two third shaft couplings 4 also as shown in Figure 1.The segmentation axis body
1, it is fastened between shaft coupling by being connected after the adjustable positioning of positioning pin by hexagon socket head cap screw.
As shown in figure 3, each segmentation axis body 1 is arranged in order exhaust cam 5, admission cam 6, fuel cam 7.It is described
Exhaust cam 5, admission cam 6, the forging of fuel cam 7 are integrated.
Uniformly distributed on the shaft shoulder at segmentation 1 both ends of axis body to open up multiple through-holes, one of them described through-hole is axis body
Location hole 11, other through-holes are axis body bolt hole 12, are segmented the number of the axis body bolt hole 12 on the shaft shoulder of every one end of axis body
Amount is 11, and the axis body location hole 11 of two sides is 0 ° in the angle of axis projection.
And the perforation oil duct axial in the inside setting of segmentation axis body 1, the diameter of the perforation oil duct is φ 75mm.
As shown in Fig. 4-11, to guarantee that each 1 block assembly position of segmentation axis body is correct, the setting of shaft coupling is as follows.
Two end sides of first shaft coupling 2 it is all uniformly distributed open up 12 through-holes, one of them described through-hole be first
Shaft coupling location hole 21, other through-holes are the first coupling bolt hole 22, and the first coupling bolt hole 22 of two sides is in axial direction
The angle of projection is 120 °.
Two end sides of second shaft coupling 3 it is all uniformly distributed open up 12 through-holes, one of them described through-hole be second
Shaft coupling location hole 31, other through-holes are the second coupling bolt hole 32, and the second coupling bolt hole 32 of two sides is in axial direction
The angle of projection is 180 °.
Two end sides of the third shaft coupling 4 it is all uniformly distributed open up 12 through-holes, one of them described through-hole be third
Shaft coupling location hole 41, other through-holes are third coupling bolt hole 42, and the third coupling bolt hole 42 of two sides is in axial direction
The angle of projection is 120 °.
The axis body location hole 11, axis body bolt hole 12, the first shaft coupling location hole 21, the first coupling bolt hole 22,
Second shaft coupling location hole 31, the second coupling bolt hole 32, third shaft coupling location hole 41 and third coupling bolt hole 42
Diameter be 25mm, and match corresponding hexagon socket head cap screw and positioning pin.
For the toughness and rigidity for improving camshaft, segmentation 1 material of axis body is 18CrNiMo7-6 to improve the tough of camshaft
Property and rigidity.
When assembling, the positioning pin 8 of Φ 25mm can be mounted on to shaft coupling and be segmented the positioning hole of axis body pairing, avoided
It is wrongly installed between segmentation axis body.
The diesel engine is the high-power electric spray type fuel feeding diesel engine of 12 cylinders, using V-type tank design, therefore, on each column cylinder body
Segmentation axis body 1 quantity be 6, the quantity of shaft coupling is also 6.Diesel engine is adapted to the differences such as peculiar to vessel, generating set use
Occasion is especially suitable for marine engine.
It will be apparent to those skilled in the art that can make various other according to the above description of the technical scheme and ideas
Corresponding change and deformation, and all these changes and deformation all should belong to the protection of the utility model claims
Within the scope of.
Claims (9)
1. a kind of large and medium-sized use for diesel engine sectional camshaft component of machinery fuel feeding, including 6 segmentation axis bodies and shaft coupling,
Be characterized in that: the every segmentation axis structure is identical, and the shaft coupling includes two the first shaft couplings, two the second shaft couplings
With two third shaft couplings, exhaust cam, admission cam made of sequentially one forging are set on each segmentation axis body
And fuel cam, the segmentation axis body are connected according to the cylinder working order of diesel engine by shaft coupling support, described point
It is fastened between section axis body, shaft coupling by being connected after the adjustable positioning of positioning pin by hexagon socket head cap screw.
2. sectional camshaft component according to claim 1, it is characterised in that: the shaft shoulder at the segmentation axis body both ends
It is upper it is uniformly distributed open up multiple through-holes, one of them described through-hole is axis body location hole, and other through-holes are axis body bolt hole.
3. sectional camshaft component according to claim 2, it is characterised in that: the axis of every one end of the segmentation axis body
The quantity of axis body bolt hole on shoulder is 11, and the axis body location hole of two sides is 0 ° in the angle of axis projection.
4. sectional camshaft component according to claim 3, it is characterised in that: be arranged in the inside of segmentation axis body axial
Perforation oil duct, it is described perforation oil duct diameter be φ 75mm.
5. sectional camshaft component according to claim 2, it is characterised in that: in two end sides of first shaft coupling
All uniformly distributed opens up 12 through-holes, one of them described through-hole is the first shaft coupling location hole, and other through-holes are the first shaft coupling
Bolt hole is saved, the first coupling bolt hole of two sides is 120 ° in the angle of axis projection.
6. sectional camshaft component according to claim 5, it is characterised in that: in two end sides of second shaft coupling
All uniformly distributed opens up 12 through-holes, one of them described through-hole is the second shaft coupling location hole, and other through-holes are the second shaft coupling
Bolt hole is saved, the second coupling bolt hole of two sides is 180 ° in the angle of axis projection.
7. sectional camshaft component according to claim 6, it is characterised in that: in two end sides of the third shaft coupling
All uniformly distributed opens up 12 through-holes, one of them described through-hole is third shaft coupling location hole, and other through-holes are third shaft coupling
Bolt hole is saved, the third coupling bolt hole of two sides is 120 ° in the angle of axis projection.
8. sectional camshaft component according to claim 7, it is characterised in that: the axis body location hole, axis body bolt
Hole, the first shaft coupling location hole, the first coupling bolt hole, the second shaft coupling location hole, the second coupling bolt hole, third connection
Joint location hole and the diameter in third coupling bolt hole are 25mm, and match corresponding hexagon socket head cap screw and positioning
Pin.
9. sectional camshaft component according to claim 1, it is characterised in that: the segmentation axis body material is
18CrNiMo7-6 is to improve the toughness and rigidity of camshaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821939080.7U CN209277964U (en) | 2018-11-23 | 2018-11-23 | A kind of large and medium-sized use for diesel engine sectional camshaft component of machinery fuel feeding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821939080.7U CN209277964U (en) | 2018-11-23 | 2018-11-23 | A kind of large and medium-sized use for diesel engine sectional camshaft component of machinery fuel feeding |
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| Publication Number | Publication Date |
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| CN209277964U true CN209277964U (en) | 2019-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821939080.7U Active CN209277964U (en) | 2018-11-23 | 2018-11-23 | A kind of large and medium-sized use for diesel engine sectional camshaft component of machinery fuel feeding |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021197563A1 (en) * | 2020-03-30 | 2021-10-07 | Wärtsilä Finland Oy | A camshaft assembly for an internal combustion piston engine and a method of assembling a camshaft assembly into an engine block |
| CN117733473A (en) * | 2024-02-21 | 2024-03-22 | 中车洛阳机车有限公司 | Boring and repairing method for camshaft flange Kong Jingxiang |
-
2018
- 2018-11-23 CN CN201821939080.7U patent/CN209277964U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021197563A1 (en) * | 2020-03-30 | 2021-10-07 | Wärtsilä Finland Oy | A camshaft assembly for an internal combustion piston engine and a method of assembling a camshaft assembly into an engine block |
| CN117733473A (en) * | 2024-02-21 | 2024-03-22 | 中车洛阳机车有限公司 | Boring and repairing method for camshaft flange Kong Jingxiang |
| CN117733473B (en) * | 2024-02-21 | 2024-04-30 | 中车洛阳机车有限公司 | Boring and repairing method for camshaft flange Kong Jingxiang |
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