CN217681896U

CN217681896U - Integrated camshaft frame and engine

Info

Publication number: CN217681896U
Application number: CN202221554753.3U
Authority: CN
Inventors: 史鹏礼; 常兴宇; 郭学敏; 李军
Original assignee: FAW Group Corp
Current assignee: FAW Group Corp
Priority date: 2022-06-21
Filing date: 2022-06-21
Publication date: 2022-10-28
Anticipated expiration: 2032-06-21

Abstract

The utility model belongs to the technical field of the engine, an integrated form camshaft frame and engine is disclosed, the integrated form camshaft frame includes the box, the both sides of box have been seted up first mounting groove and second mounting groove respectively, first mounting groove and second mounting groove are used for installing inlet camshaft and exhaust camshaft respectively, still be provided with oil-gas separation portion on the box, first mounting groove, second mounting groove and oil-gas separator all integrative integration are on the box; the engine comprises the integrated camshaft frame. The integrated camshaft frame is integrated with the oil-gas separation part, the oil-gas separation part can perform oil-gas separation, an externally-hung oil-gas separator is omitted, the structure is compact, and the production cost is reduced.

Description

Integrated camshaft frame and engine

Technical Field

The utility model relates to the technical field of engines, especially, relate to an integrated form camshaft frame and engine.

Background

With the increasing competition of the automobile industry, the design of the engine continuously reduces the cost and improves the efficiency in an integrated and modularized mode. The oil-gas separation system is used as the core part of a crankcase ventilation system and mainly used for separating engine oil particles in blow-by gas and then flowing back to an engine oil sump through an oil return mechanism; the effectively separated blow-by gas is directly guided into the front end of the air inlet manifold or the air compressor from the vent and enters the combustion chamber to participate in combustion. In the prior art, the oil-gas separation action is generally executed by an external oil-gas separator, and the structure of a camshaft frame is complex and the cost is high.

Based on the above problems, it is desired to design an integrated camshaft frame and engine to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an aim at: the integrated camshaft frame is integrated with an oil-gas separation part capable of performing oil-gas separation, an externally-hung oil-gas separator is omitted, and the structure is compact.

The utility model discloses another aim at: an engine is provided comprising the integrated camshaft frame.

To achieve the purpose, the utility model adopts the following technical proposal:

on one hand, the integrated camshaft frame comprises a box body, wherein the box body can be arranged on a cylinder cover of an engine, a first mounting groove and a second mounting groove are respectively formed in two sides of the box body, and the first mounting groove and the second mounting groove are respectively used for mounting an intake camshaft and an exhaust camshaft;

the oil-gas separation device is characterized in that an oil-gas separation part is further arranged on the box body and used for executing oil-gas separation, and the first mounting groove, the second mounting groove and the oil-gas separation part are integrated on the box body.

As a preferred scheme, the oil-gas separation part is located between the first mounting groove and the second mounting groove, the oil-gas separation part is provided with a plurality of first bulges for mounting the fire coil and a plurality of second bulges provided with threaded holes for inserting the journal bolt, and the first bulges and the second bulges are arranged in a staggered manner and form a labyrinth oil-gas separation channel with the side walls of the first mounting groove and the second mounting groove.

As a preferred scheme, the air inlet of the oil-gas separation channel is arranged at the first end of the oil-gas separation part, the air outlet is arranged at the side wall of the box body and close to the second end of the oil-gas separation part, and the first protrusion and the second protrusion are arranged between the first end and the second end.

Preferably, a plurality of spaced first bearing caps are integrally provided in the first mounting groove, the first bearing caps being capable of supporting the intake camshaft, and a plurality of spaced second bearing caps are integrally provided in the second mounting groove, the second bearing caps being capable of supporting the exhaust camshaft.

As a preferable scheme, the first bearing cover is annular, a first mounting hole is formed in the side wall of the end part of the first mounting groove, and the intake camshaft is inserted from the first mounting hole and sequentially penetrates through the plurality of first bearing covers;

the second bearing cover is annular, a second mounting hole is formed in the side wall of the end portion of the second mounting groove, and the exhaust cam shaft is inserted into the second mounting hole and sequentially penetrates through the second bearing cover.

As a preferable scheme, the box body is provided with a positioning pin, and the positioning pin can be inserted into a positioning hole of the cylinder cover to position the box body.

As a preferable scheme, a first mounting boss is further arranged on the box body, a third mounting hole is formed in the first mounting boss, and the oil pump can be mounted on the first mounting boss and is in butt joint with the third mounting hole.

Preferably, a plurality of ribs are connected to a peripheral portion of the first mounting boss, and the other ends of the plurality of ribs are connected to a side wall of the case.

As a preferable scheme, a second mounting boss is further arranged on the box body, a fourth mounting hole is formed in the second mounting boss, and the fourth mounting hole is used for mounting an oil scale.

In another aspect, an engine is also disclosed, which comprises the integrated camshaft frame.

The beneficial effects of the utility model are that: the integrated camshaft frame is compact in structure, and further improves the integration and modularization degree of the engine.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and examples.

FIG. 1 is a schematic view of an integrated camshaft frame from a first perspective;

FIG. 2 is a schematic view of the integrated camshaft frame from a second perspective;

fig. 3 is a structural schematic diagram of the integrated camshaft frame from a third perspective.

In fig. 1 to 3:

1. a first mounting groove; 11. a first bearing cover; 12. a first mounting hole;

2. a second mounting groove; 21. a second bearing cover; 22. a second mounting hole;

3. an oil-gas separation section; 31. a first protrusion; 32. a second protrusion; 33. an air inlet; 34. an air outlet;

4. a first mounting boss; 41. a third mounting hole;

5. reinforcing ribs;

6. a second mounting boss; 61. and a fourth mounting hole.

Detailed Description

In order to make the technical problems, the adopted technical solutions and the achieved technical effects of the present invention clearer, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical solution of the present invention is further explained by the following embodiments with reference to the drawings.

In the prior art, the oil-gas separation system generally separates oil particles in blow-by gas by means of an external oil-gas separator, but the structure of a camshaft frame is complicated, and the overall cost is increased. Based on the problems of the prior art, the embodiment provides an integrated camshaft frame, which is integrated with an oil-gas separation part 3 capable of performing oil-gas separation, so that an external oil-gas separator is not needed, and the structure is compact.

Specifically, as shown in fig. 1, the embodiment provides an integrated camshaft frame, which includes a box body, the box body can be installed on a cylinder cover of an engine, a first installation groove 1 and a second installation groove 2 are respectively formed in two sides of the box body, wherein the first installation groove 1 is used for installing an intake camshaft, the second installation groove 2 is used for installing an exhaust camshaft, an oil-gas separation portion 3 is further arranged on the box body, and the first installation groove 1, the second installation groove 2 and the oil-gas separation portion 3 are integrated on the box body. When the blow-by gas mixed with the organic oil enters the oil-gas separation part 3, the oil-gas separation part 3 can separate the organic oil in the blow-by gas, so that the function of oil-gas separation is realized, an external oil-gas separator is not needed, the structure is compact, and the overall cost is reduced.

In this embodiment, the oil-gas separation portion 3 is located between the first mounting groove 1 and the second mounting groove 2, the oil-gas separation portion 3 is provided with a plurality of first protrusions 31, the first protrusions 31 are cylindrical, a hole for mounting a fire coil is formed in the middle of each first protrusion 31, one side of each first protrusion 31 is connected to the side wall of the second mounting groove 2, and the other side of each first protrusion 31 extends to the middle of the oil-gas separation portion 3, the oil-gas separation portion 3 is further provided with a plurality of second protrusions 32, each second protrusion 32 is provided with a threaded hole for inserting a journal bolt, the second protrusions 32 are arranged in pairs, one of the pair of second protrusions 32 is connected to the side wall of the first mounting groove 1, and the other is connected to the side wall of the second mounting groove 2, and the first protrusions 31 and the second protrusions 32 are arranged in a staggered manner and form a labyrinth oil-gas separation channel with the side walls of the first mounting groove 1 and the second mounting groove 2. When the blow-by gas mixed with the oil enters the oil-gas separation passage, the oil is blocked by the first protrusion 31 and the second protrusion 32, so that the oil is separated from the blow-by gas, and the structure is simple. In this use neotype other embodiments, also can set up oil-gas separation passageway into spiral structure, set up spiral arch at the lateral wall of oil-gas separation portion 3, can realize oil-gas separation's function equally.

Specifically, the first end of oil-gas separation portion 3 is seted up to oil-gas separation passageway's air inlet 33, and the lateral wall of box is seted up to gas outlet 34 is close to the second end of oil-gas separation portion 3, and first arch 31 and second arch 32 all are located between first end and the second end, can not only be better adapted to other parts of engine, and the blowby gas that mixes organic oil can pass through all first arch 31 and second arch 32, has improved oil-gas separation efficiency.

As shown in fig. 2, a plurality of spaced first bearing covers 11 are integrally arranged in the first mounting groove 1, the specific number can be set according to actual requirements, the first bearing covers 11 can support an intake camshaft, a plurality of spaced second bearing covers 21 are integrally arranged in the second mounting groove 2, and the second bearing covers 21 can support an exhaust camshaft. In the prior art, each shaft neck of each camshaft is provided with an independent bearing cover, and each independent bearing cover needs two positioning rings for positioning, so that the assembly operation is complex and the efficiency is low; and after the bearing cap is processed into the camshaft hole, the single bearing cap needs to be disassembled to assemble the camshaft, and the coaxiality and roundness of each single bearing cap bearing hole are poor after the disassembly and assembly. And the first bearing cover 11 and the second bearing cover 21 of this embodiment are respectively and integrally arranged on the integrated camshaft frame, so that the risks of coaxiality and roundness difference caused by repeated disassembly can be eliminated, and the assembly is simple as long as the intake camshaft and the exhaust camshaft are respectively arranged on the first bearing cover 11 and the second bearing cover 21.

As a preferred embodiment, the first bearing cover 11 is configured to be annular, a through hole is formed in the middle, a first mounting hole 12 is formed in the side wall of the end portion of the first mounting groove 1, the second bearing cover 21 is also configured to be annular, a through hole is formed in the middle, and a second mounting hole 22 is formed in the side wall of the end portion of the second mounting groove 2. When the air inlet camshaft and the exhaust camshaft are assembled, the air inlet camshaft is inserted from the first mounting hole 12 and sequentially penetrates through the plurality of first bearing covers 11, the air inlet protruding shaft extends to the other end of the first mounting groove 1, and then the cover plate is connected to the opening part of the first mounting hole 12 to axially limit the air inlet camshaft, so that the anti-thrust effect can be achieved; the exhaust camshaft is inserted from the second mounting hole 22 and sequentially penetrates the plurality of second bearing caps 21, extends to the other end of the second mounting groove 2, and is then connected to the opening portion of the second mounting hole 22 using a cover plate so as to be axially limited. The installation of the air inlet camshaft and the exhaust camshaft is more convenient for the first bearing cover 11 and the second bearing cover 21 which are integrally arranged, and the overall NVH modal rigidity is better.

In this embodiment, a positioning pin (not shown in the figure) is further disposed on the case, the positioning pin can be inserted into the positioning hole of the cylinder cover to position the case, screw holes are further formed in the end faces of the first bearing cover 11 and the second bearing cover 21, the bolt penetrates through the cylinder cover and is inserted into the screw holes, and the case can be fixed on the cylinder cover of the engine by matching with the positioning function of the positioning pin.

As shown in fig. 3, the box body is further provided with a first mounting boss 4, the first mounting boss 4 is provided with a third mounting hole 41, the first mounting boss 4 is provided with a screw hole, a screw penetrates through the high-pressure oil pump and is in threaded connection with the screw hole, the high-pressure oil pump can be mounted on the first mounting boss 4 and is in butt joint with the third mounting hole 41, and the integration degree of the integrated camshaft frame is further improved.

As a preferred embodiment, a plurality of reinforcing ribs 5 are connected to the peripheral portion of the first mounting boss 4, the plurality of reinforcing ribs 5 are arranged on the peripheral portion of the first mounting boss 4 in a planetary shape, one end of each reinforcing rib 5 is connected to the peripheral side wall of the first mounting boss 4, and the other end of each reinforcing rib 5 is connected to the side wall of the box body.

In this embodiment, still be provided with second installation boss 6 on the box, the slope of second installation boss 6 sets up, has seted up fourth mounting hole 61 on the second installation boss 6, and fourth mounting hole 61 communicates in second mounting groove 2, and the machine oil scale can be pegged graft in fourth mounting hole 61. It can be understood that the integrated camshaft frame is provided with the second mounting boss 6, so that an engine oil scale pipe part in the prior art is eliminated, the structural mode is better, and the damage of the engine oil scale pipe caused by vibration can be avoided.

The embodiment also provides an engine, including foretell integrated form camshaft frame, integrated form camshaft frame mount is on the cylinder head, and wherein, first mounting groove 1, second mounting

groove

2 and 3 homogeneous integrations of oil-gas separation portion are on the box of integrated form camshaft frame, and oil-gas separation portion 3 is used for carrying out oil-gas separation's action to integrated form camshaft frame need not to connect the oil and gas separator outward, compact structure, and further, has improved the integration and the modularization degree of engine.

In the description herein, it is to be understood that the terms "upper," "lower," "left," "right," and the like are used in an orientation or positional relationship based on what is shown in the drawings for convenience of description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have a special meaning.

In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

In addition, the foregoing is only the preferred embodiment of the present invention and the technical principles applied thereto. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. The integrated camshaft frame is characterized by comprising a box body, wherein the box body can be arranged on a cylinder cover of an engine, a first mounting groove (1) and a second mounting groove (2) are respectively formed in two sides of the box body, and the first mounting groove (1) and the second mounting groove (2) are respectively used for mounting an intake camshaft and an exhaust camshaft;

still be provided with oil-gas separation portion (3) on the box, oil-gas separation portion (3) are used for carrying out oil-gas separation's action, first mounting groove (1) second mounting groove (2) with oil-gas separation portion (3) homogeneous body integrate in on the box.

2. The integrated camshaft frame according to claim 1, wherein the oil-gas separation part (3) is located between the first mounting groove (1) and the second mounting groove (2), the oil-gas separation part (3) is provided with a plurality of first protrusions (31) for mounting a spark coil and a plurality of second protrusions (32) provided with threaded holes for inserting journal bolts, the first protrusions (31) and the second protrusions (32) are arranged in a staggered manner, and the first protrusions (31), the second protrusions (32), the side wall of the first mounting groove (1) and the side wall of the second mounting groove (2) form a labyrinth oil-gas separation passage.

3. The integrated camshaft frame according to claim 2, wherein the air inlet (33) of the air-oil separation channel opens at a first end of the air-oil separation portion (3), the air outlet (34) of the air-oil separation channel opens at a side wall of the housing and close to a second end of the air-oil separation portion (3), the first protrusion (31) and the second protrusion (32) being located between the first end and the second end.

4. The integrated camshaft frame according to claim 1, wherein a plurality of spaced first bearing caps (11) are integrally provided in the first mounting groove (1), the first bearing caps (11) being capable of supporting the intake camshaft, and a plurality of spaced second bearing caps (21) are integrally provided in the second mounting groove (2), the second bearing caps (21) being capable of supporting the exhaust camshaft.

5. The integrated camshaft frame according to claim 4, wherein the first bearing cover (11) is configured to be annular, a first mounting hole (12) is formed in a side wall of an end portion of the first mounting groove (1), and the intake camshaft is inserted from the first mounting hole (12) and sequentially inserted into the plurality of first bearing covers (11);

the second bearing cover (21) is annular, a second mounting hole (22) is formed in the side wall of the end portion of the second mounting groove (2), and the exhaust camshaft is inserted into the second mounting hole (22) and sequentially penetrates through the second bearing cover (21).

6. The integrated camshaft frame as claimed in claim 1, wherein the housing is provided with a locating pin that is insertable into a locating hole of the cylinder head to locate the housing.

7. The integrated camshaft frame as claimed in claim 1, wherein the housing is further provided with a first mounting boss (4), the first mounting boss (4) is provided with a third mounting hole (41), and the oil pump can be mounted on the first mounting boss (4) and is butted to the third mounting hole (41).

8. The integrated camshaft frame according to claim 7, wherein a plurality of reinforcing ribs (5) are connected to a peripheral portion of the first mounting boss (4), and the other ends of the plurality of reinforcing ribs (5) are connected to the side wall of the case.

9. The integrated camshaft frame as claimed in claim 1, wherein a second mounting boss (6) is further disposed on the box body, a fourth mounting hole (61) is formed in the second mounting boss (6), and the fourth mounting hole (61) is used for mounting an oil level indicator.

10. An engine comprising the integrated camshaft frame of any one of claims 1 to 9.