CN112847187A - Engine cylinder head cover and processing and positioning device thereof - Google Patents
Engine cylinder head cover and processing and positioning device thereof Download PDFInfo
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- CN112847187A CN112847187A CN202011626049.XA CN202011626049A CN112847187A CN 112847187 A CN112847187 A CN 112847187A CN 202011626049 A CN202011626049 A CN 202011626049A CN 112847187 A CN112847187 A CN 112847187A
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- oil
- gas separation
- cover main
- main body
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses an engine cylinder head cover which comprises a head cover main body, wherein a groove is formed in the top surface of an inner cavity of the head cover main body, and an installation bottom plate is arranged at the opening end of the groove to form an oil-gas separation channel; the mounting bottom plate is provided with an air inlet communicated with one end of the oil-gas separation channel, and the cover main body is also provided with an exhaust pipe communicated with the other end of the oil-gas separation channel; the oil-gas separation device comprises an installation bottom plate, an oil-gas separation channel is arranged on the installation bottom plate, a separation component is arranged on one side of the installation bottom plate, the other side of the installation bottom plate is provided with a plurality of oil collecting pipes communicated with the oil-gas separation channel, the lower ends of the oil collecting pipes extend towards the cavity of an engine, and the lower ends of the oil collecting pipes are bent upwards to form a U-shaped oil collecting cavity. The invention also discloses a processing and positioning device of the engine cylinder head cover. The engine cylinder head cover and the processing and positioning device thereof provided by the invention have the advantages that the structure is simple, the efficient oil-gas separation is realized, the problem of engine blow-by can be solved, and the processing and clamping positioning of the engine cylinder head cover are stable and accurate.
Description
Technical Field
The invention relates to the technical field of automobile engine cylinder head covers, in particular to an engine cylinder head cover and a processing and positioning device thereof.
Background
The engine cylinder cover is a cover covering the engine cylinder block, can prevent external impurities from entering the engine and simultaneously plays a role in sealing. The engine head cover is typically bolted to the cylinder head so that it covers and seals the cylinder head, keeping the engine oil inside the engine. In addition, high-temperature fuel gas generated during the operation of the engine can enter the crankcase through a gap between the piston group and the cylinder, so that blow-by gas is generated. The blowby gas is composed of unburned fuel gas, water vapor, exhaust gas, and the like. The water vapor is condensed in the engine oil to dilute the engine oil, so that the service performance of the engine oil is reduced; sulfur dioxide in the waste gas is oxidized in the air to generate sulfuric acid, so that the oxidative deterioration of engine oil is accelerated, and the corrosion and accelerated wear of engine parts can be caused; the blow-by gas also causes the pressure of the crankcase to be too high to damage the sealing of the crankcase, so that the engine oil leaks and runs off; the aging of the engine oil is accelerated, and the reliability is reduced. Therefore, it is desirable to control blow-by gas using a crankcase ventilation system. Blow-by gas can carry a large amount of oil gas when flowing through crankcase ventilation system, causes the engine oil loss, worsens the emission simultaneously, consequently must separate the oil gas, reduces the engine oil loss. The oil gas that comes to get rid of the engine through integrated oil-gas separation structure in the cylinder head cover separates, and the oil-gas separation device structure that sets up in the current cylinder head cover structure is complicated, and the separation effect is poor.
In addition, in the prior art, a positioning mechanism for machining the cylinder head cover is complicated, or the positioning of the workpiece is not stable enough, so that the position degree is poor.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the defects of the prior art are overcome, and the engine cylinder head cover which is simple in structure, realizes high-efficiency oil-gas separation and can solve the problem of engine blow-by is provided.
The invention adopts a technical scheme that: the cylinder head cover of the engine comprises a cover main body arranged on the top of the engine, wherein an oil-gas separation mechanism is arranged on the top surface of the cover main body, which is close to one side of the engine main body, a plurality of ignition coil mounting holes are also arranged on the top surface of the cover main body, the oil-gas separation mechanism comprises a mounting bottom plate, a groove is arranged on the top surface of an inner cavity of the cover main body, and the mounting bottom plate is assembled on the opening end surface of the groove to form an oil-gas separation; the mounting bottom plate is provided with an air inlet communicated with one end of the oil-gas separation channel, and the cover main body is also provided with an exhaust pipe communicated with the other end of the oil-gas separation channel; the oil-gas separation device comprises an installation bottom plate, an oil-gas separation channel is arranged on the installation bottom plate, a separation component is arranged on one side of the installation bottom plate, the other side of the installation bottom plate is provided with a plurality of oil collecting pipes communicated with the oil-gas separation channel, the lower ends of the oil collecting pipes extend towards the cavity of an engine, and the lower ends of the oil collecting pipes are bent upwards to form a U-shaped oil collecting cavity.
After adopting the structure, compared with the prior art, the invention has the following advantages:
in the structure of the invention, the corresponding oil-gas separation component is arranged, so that the mixed gas entering the oil-gas separation channel can realize effective oil-gas separation, and the oil content of the gas discharged from the exhaust pipe is low, so that the engine can be always stably operated; in addition, the lower end of the oil collecting pipe 4 is provided with the bent U-shaped oil collecting cavity 4.1, so that the oil liquid after separation is collected, and the oil collecting pipe can also play a role in preventing blow-by, because a negative pressure environment is arranged in the oil-gas separation channel, under the condition, if the oil collecting pipe 4 is directly a straight pipe with an opening at the lower end, the gas in the cavity of the engine can blow-by along the vertical oil collecting pipe 4 to the oil-gas separation channel, and the effect of oil-gas separation in the oil-gas separation channel can be influenced.
Furthermore, an exhaust channel communicated with the oil-gas separation channel is arranged on the upper end face of the cover main body, a diaphragm valve is arranged at the upper opening end of the exhaust channel, a transition cavity is further arranged in the exhaust channel, and an air outlet communicated with the exhaust channel is formed in the side wall of the transition cavity; the inlet of the exhaust pipe is communicated with the transition cavity.
As the improvement, the transition cavity is filled with filter cotton, and the inlet of the exhaust pipe and the air outlet are symmetrically arranged on the side wall of the transition cavity. And a filter cotton structure is added in the transition cavity, so that more thorough oil-gas separation is fully ensured.
Preferably, the separating assembly comprises a plurality of separating baffles, the separating baffles are arranged in two rows along the width direction of the mounting base plate, and the two rows of separating baffles are sequentially arranged in a staggered manner along the length direction of the mounting base plate.
The improved structure is characterized in that the upper end face of the cover main body is also provided with a plurality of connecting columns, and the outer end face of each connecting column is provided with a connecting hole; the positions on the top surface of the inner cavity of the cover main body, which correspond to the connecting columns, are respectively provided with a reinforcing convex column.
In addition, another technical problem to be solved by the invention is how to ensure that the engine cylinder head cover realizes stable clamping and positioning, thereby ensuring the machining precision, improving the product quality and realizing the improvement of the oil-gas separation function on the other hand.
Correspondingly, the second technical scheme adopted by the invention is as follows: a special processing positioning device for processing the cover body comprises a fixed seat used for being fixed with a processing machine tool, wherein a plurality of pressing mechanisms, a plurality of first supporting mechanisms and a plurality of second supporting mechanisms are arranged on an installation bedplate of the fixed seat; a plurality of hold-down mechanism press-fit location respectively on the outer terminal surface of each spliced pole in the housing main part, and a plurality of first supporting mechanism support respectively on the terminal surface of a strengthening projection, and a plurality of second supporting mechanism support respectively on the enhancement bulge loop that corresponds at housing main part inner chamber top and each ignition coil mounting hole.
Preferably, the pressing mechanism comprises a pressing block, a connecting rod and a pressing driving cylinder, one end of the connecting rod is connected with a piston rod of the pressing driving cylinder, and one end of the pressing block is hinged to the other end of the connecting rod; a fixed block is arranged on the mounting bedplate close to the second supporting mechanism, a linkage plate is connected to the upper end of the fixed block, and the other end of the linkage plate is hinged to the middle of the pressing block.
Preferably again, first supporting mechanism is the same with second supporting mechanism structure, including connecting block, bracing piece and be used for injecing the locating component of bracing piece high position, and the lower terminal surface at the installation platen is fixed to the connecting block, and the upper end of connecting block is equipped with the holding hole, and the lower extreme sliding fit of bracing piece is in the holding hole, and locating component top is leaned on the lateral wall of bracing piece lower extreme.
Preferably, the positioning assembly comprises a limiting top block and a positioning driving cylinder for driving the limiting top block to move towards the supporting rod; the side wall of the lower end of the supporting rod is provided with a guide inclined plane, and one end of the limiting ejector block, which is close to the supporting rod, is provided with an inclined plane matched with the guide inclined plane.
As an improvement, an elastic part is arranged between the bottom of the containing hole and the lower end face of the supporting rod, a waist-shaped hole which extends along the axial direction of the connecting block and is communicated with the containing hole is arranged on the side wall of the connecting block, a positioning screw is matched in the waist-shaped hole, and the end part of the positioning screw is connected and fixed on the side wall of the supporting rod.
Drawings
Fig. 1 is a schematic structural view of a cylinder head cover of an engine of the present invention.
Fig. 2 is a schematic structural view of the engine cylinder head cover of the present invention with the diaphragm valve removed.
Fig. 3 is a schematic view of another angle configuration of the cylinder head cover of the engine of the present invention.
FIG. 4 is a schematic view of the connecting structure of the mounting base plate, the separating assembly and the oil collecting pipe according to the present invention.
Fig. 5 is a schematic view of another angle connection structure of the mounting base plate, the separating assembly and the oil collecting pipe in the invention.
Fig. 6 is a schematic structural view of a dedicated processing positioning device of a cover main body in the present invention.
Fig. 7 is an enlarged structural view at X in fig. 6.
Fig. 8 is a schematic structural view of the first support mechanism or the second support mechanism in the present invention.
Fig. 9 is a sectional view of the first support mechanism or the second support mechanism in the present invention.
Specifically, 01-a pressing mechanism, 02-a first supporting mechanism, 03-a second supporting mechanism;
1-a cover main body, 1.1-an ignition coil mounting hole, 2-a mounting bottom plate, 2.1-an air inlet, 3-an exhaust pipe, 4-an oil collecting pipe, 4.1-a U-shaped oil collecting cavity, 5-an exhaust channel, 6-a diaphragm valve, 7-a transition cavity, 7.1-an air outlet hole, 8-a separating baffle, 9-a connecting column, 9.1-a connecting hole, 10-a reinforcing convex column, 11-a reinforcing convex ring, 12-a fixing seat, 13-a mounting bedplate, 14-a pressing block, 15-a connecting rod, 16-a pressing driving cylinder, 17-a fixing block, 18-a linkage plate, 19-a connecting block, 19.1-a containing hole, 19.2-a kidney-shaped hole, 20-a supporting rod, 20.1-a guide inclined plane, 20.2-a positioning column, 21-a limiting top block and 22-a positioning driving cylinder, 23-elastic member, 24-set screw.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
In the description of the present invention, it should be noted that the terms "top surface", "lower end", "upward", "upper end surface", "upper portion", "outer end surface", "middle portion", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. It should also be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, e.g. as a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the cylinder head cover provided by the invention comprises a cover main body installed on the top of an engine, wherein an oil-gas separation mechanism is arranged on the top surface of one side, close to the engine main body, of the cover main body 1, a plurality of ignition coil mounting holes 1.1 are further formed in the top surface of the cover main body 1, the oil-gas separation mechanism comprises a mounting bottom plate 2, a groove is formed in the top surface of an inner cavity of the cover main body 1, and the mounting bottom plate 2 is assembled on the opening end surface of the groove to form an oil-gas separation channel; an air inlet 2.1 communicated with one end of the oil-gas separation channel is arranged on the mounting bottom plate 2, and an exhaust pipe 3 communicated with the other end of the oil-gas separation channel is also arranged on the cover main body 1; nearly oil-gas separation channel's one side separation element on mounting plate 1, mounting plate 2's opposite side is equipped with a plurality of oil collecting pipe 4 with oil-gas separation channel intercommunication, and the lower extreme of oil collecting pipe 4 extends towards the engine cavity, and the lower extreme of oil collecting pipe 4 upwards buckles and forms the oil collecting cavity 4.1 of U type, in this embodiment, still is equipped with the filter screen in this U type oil collecting cavity 4.1's open end position. In addition, this crooked U type collection oil chamber 4.1 structure is set up to the lower extreme at oil collecting pipe 4 in this structure, has not only realized the collection effect of the fluid after the separation, in addition can also play the effect of preventing the blowby, because the environment of a negative pressure is in the oil-gas separation passageway, under this condition, if this oil collecting pipe 4 directly is a lower extreme open-ended straight tube, then the gas blowby in the engine cavity can be along vertical oil collecting pipe 4 toward the oil-gas separation passageway, will influence the effect of oil-gas separation in the oil-gas separation passageway like this.
An exhaust channel 5 communicated with the oil-gas separation channel is arranged on the upper end face of the cover main body 1, a diaphragm valve 6 is arranged at the upper opening end of the exhaust channel 5, a transition cavity 7 is further arranged in the exhaust channel 5, and an air outlet 7.1 communicated with the exhaust channel 5 is formed in the side wall of the transition cavity 7; the inlet of the exhaust pipe 3 communicates with the transition chamber 7. And the transition cavity 7 is filled with filter cotton, and the inlet of the exhaust pipe 3 and the air outlet 7.1 are symmetrically arranged on the side wall of the transition cavity 7.
The separating assembly comprises a plurality of separating baffles 8, the separating baffles 8 are arranged in two rows along the width direction of the mounting base plate 2, and the two rows of separating baffles 8 are sequentially arranged along the length direction of the mounting base plate 2 in a staggered manner.
The upper end face of the cover main body 1 is also provided with a plurality of connecting columns 9, and the outer end face of each connecting column 9 is provided with a connecting hole 9.1; the positions on the top surface of the inner cavity of the cover main body 1 corresponding to the connecting columns 9 are respectively provided with a reinforcing convex column 10.
On the other hand, the invention also discloses a positioning device for processing the engine cylinder head cover, which comprises a fixed seat 12 fixed with a processing machine tool, wherein the upper end of the fixed seat 12 is provided with an installation bedplate 13, and the installation bedplate 13 is provided with a plurality of pressing mechanisms 01, a plurality of first supporting mechanisms 02 and a plurality of second supporting mechanisms 03; correspondingly, a plurality of hold-down mechanisms 01 are respectively press-fitted and positioned on the outer end faces of the connecting posts 9 on the cover main body 1, a plurality of first supporting mechanisms 02 are respectively supported on the end faces of the reinforcing convex posts 10, and a plurality of second supporting mechanisms 03 are respectively supported on the reinforcing convex rings 11 corresponding to the ignition coil mounting holes 1.1 on the top of the inner cavity of the cover main body 1. In this structure, support the lower extreme of housing body 1 through corresponding supporting mechanism to through the upper end of corresponding hold-down mechanism 01 pressure equipment at housing body 1, realize the location that compresses tightly of its up end, conveniently carry out stable, accurate machining process at the corresponding position of its up end.
Specifically, as shown in fig. 6, the pressing mechanism 01 in this embodiment includes a pressing block 14, a connecting rod 15 and a pressing driving cylinder 16, one end of the connecting rod 15 is connected to a piston rod of the pressing driving cylinder 16, and one end of the pressing block 14 is hinged to the other end of the connecting rod 15; a fixed block 17 is further arranged at a position, close to the second supporting mechanism 02, of the mounting platen 13, a linkage plate 18 is connected to the end of the fixed block 17, the other end of the linkage plate 18 is hinged to the middle of each pressing block 14, and during positioning, one end, far away from the connecting rod 15, of each pressing block 14 is pressed and positioned at the upper end face of the connecting column 9 at the upper end of the cover main body 1.
In addition, as shown in fig. 7, the first supporting mechanism 02 has the same structure as the second supporting mechanism 03, and specifically includes a connecting block 19, a supporting rod 20, and a positioning component for defining the height position of the supporting rod 20, the connecting block 19 is fixed on the lower end surface of the installation bedplate 13, the upper end of the connecting block 19 is provided with a receiving hole 19.1, the lower end of the supporting rod 20 is slidably fitted in the receiving hole 19.1, and the positioning component abuts against the side wall of the lower end of the supporting rod 20. In this structure, more specifically, as shown in fig. 8 and 9, the positioning assembly includes a limit top block 21 and a positioning driving cylinder 22 for driving the limit top block 21 to move toward the support rod; the side wall of the lower end of the support rod 20 is provided with a guide inclined plane 20.1, and one end of the limit top block 21 close to the support rod 20 is provided with an inclined plane matched with the guide inclined plane 20.1.
As shown in fig. 9, an elastic member 23 is disposed between the bottom of the accommodating hole 19.1 and the lower end surface of the support rod 20, which is preferably a cylindrical spring in this embodiment, and a positioning post 20.2 is disposed at the lower end of the support rod 20, the upper end of the cylindrical spring is sleeved and fixed outside the positioning post 20.2, and the lower end of the cylindrical spring abuts against the bottom of the accommodating hole 19.1.
In addition, the side wall of the connecting block 19 is provided with a waist-shaped hole 19.2 which extends along the axial direction and is communicated with the accommodating hole 19.1, a positioning screw 24 is matched in the waist-shaped hole 19.2, and the end part of the positioning screw 24 is connected and fixed on the side wall of the supporting rod 20. The set screw 24 functions to prevent the support rod 20 from moving upward by the elastic member to be separated from the connection block 19.
The working principle of the adjustment of the supporting mechanism in the structure is as follows:
in an initial state, the positioning driving cylinder 22 is in a retraction state, the limiting ejector block 21 and the supporting rod 20 are in a separation state at the moment, and the supporting rod 20 is ejected upwards under the action of the elastic piece 23 until the side wall of the positioning screw 24 abuts against and is positioned on the upper end face of the kidney-shaped hole 19.2; when the cover main body 1 is placed on each supporting mechanism, under the action of gravity of the cover main body 1, the elastic piece 23 is compressed, and when the flatness position of the whole cover main body 1 is adjusted, after the adjustment is completed, each corresponding positioning driving cylinder 22 stretches out to drive the limiting ejector block 21 to abut against and press the corresponding position on the guide inclined plane 20.1, so that stable positioning of the cover main body 1 is realized.
The foregoing has described preferred embodiments of the present invention and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to vary, and various changes made within the scope of the independent claims of the present invention are within the scope of the present invention.
Claims (10)
1. The utility model provides an engine cylinder head cover, is including installing cover main part (1) at the engine top, the top surface of cover main part (1) near engine main part one side is equipped with oil-gas separation mechanism, still be equipped with a plurality of ignition coil mounting holes (1.1), its characterized in that on cover main part (1) top surface: the oil-gas separation mechanism comprises an installation bottom plate (2), a groove is formed in the top surface of the inner cavity of the cover main body (1), and the installation bottom plate (2) is assembled on the opening end surface of the groove to form an oil-gas separation channel; an air inlet (2.1) communicated with one end of the oil-gas separation channel is formed in the mounting bottom plate (2), and an exhaust pipe (3) communicated with the other end of the oil-gas separation channel is further arranged on the cover main body (1); nearly oil-gas separation channel's one side separation module on mounting plate (1), the opposite side of mounting plate (2) is equipped with a plurality of oil collecting pipe (4) with oil-gas separation channel intercommunication, the lower extreme of oil collecting pipe (4) extends towards the engine cavity, just the lower extreme of oil collecting pipe (4) up buckles and forms oil collecting cavity (4.1) of U type.
2. The engine cylinder head cover according to claim 1, characterized in that: an exhaust channel (5) communicated with the oil-gas separation channel is arranged on the upper end face of the cover main body (1), a diaphragm valve (6) is arranged at the upper opening end of the exhaust channel (5), a transition cavity (7) is further arranged in the exhaust channel (5), and an air outlet (7.1) communicated with the exhaust channel (5) is formed in the side wall of the transition cavity (7); and the inlet of the exhaust pipe (3) is communicated with the transition cavity (7).
3. The engine cylinder head cover according to claim 2, characterized in that: the transition cavity (7) is filled with filter cotton, and the inlet of the exhaust pipe (3) and the air outlet hole (7.1) are symmetrically arranged on the side wall of the transition cavity (7).
4. The engine cylinder head cover according to claim 1, characterized in that: the separating assembly comprises a plurality of separating baffles (8), the separating baffles (8) are arranged in two rows along the width direction of the mounting base plate (2), and the two rows of separating baffles (8) are sequentially arranged in a staggered manner along the length direction of the mounting base plate (2).
5. The engine cylinder head cover according to any one of claims 1 to 4, characterized in that: the upper end face of the cover main body (1) is also provided with a plurality of connecting columns (9), and the outer end face of each connecting column (9) is provided with a connecting hole (9.1); the positions, corresponding to the connecting columns (9), on the top surface of the inner cavity of the cover main body (1) are respectively provided with reinforcing convex columns (10).
6. A processing positioning device of an engine cylinder head cover based on any one of claims 1 to 5, comprising a fixing seat (12) used for fixing with a processing machine tool, characterized in that: a plurality of pressing mechanisms (01), a plurality of first supporting mechanisms (02) and a plurality of second supporting mechanisms (03) are arranged on the mounting bedplate (13) of the fixed seat (12); a plurality of hold-down mechanisms (01) are respectively press-fitted and positioned on the outer end faces of connecting posts (9) on the cover main body (1), a plurality of first supporting mechanisms (02) are respectively supported on the end faces of reinforcing convex posts (10), and a plurality of second supporting mechanisms (03) are respectively supported on reinforcing convex rings (11) corresponding to ignition coil mounting holes (1.1) on the top of an inner cavity of the cover main body (1).
7. The processing positioning device according to claim 6, wherein: the pressing mechanism (01) comprises a pressing block (14), a connecting rod (15) and a pressing driving cylinder (16), one end of the connecting rod (15) is connected with a piston rod of the pressing driving cylinder (16), and one end of the pressing block (14) is hinged to the other end of the connecting rod (15); a fixed block (17) is further arranged on the mounting bedplate (13) at a position close to the second supporting mechanism (02), a linkage plate (18) is connected to the upper end of the fixed block (17), and the other end of the linkage plate (18) is hinged to the middle of the pressing block (14).
8. The processing positioning device according to claim 6, wherein: the first supporting mechanism (02) and the second supporting mechanism (03) are identical in structure and comprise a connecting block (19), a supporting rod (20) and a positioning assembly for limiting the height position of the supporting rod (20), the connecting block (19) is fixed on the lower end face of the mounting bedplate (13), an accommodating hole (19.1) is formed in the upper end of the connecting block (19), the lower end of the supporting rod (20) is in sliding fit in the accommodating hole (19.1), and the positioning assembly abuts against the side wall of the lower end of the supporting rod (20).
9. The tooling positioning apparatus of claim 8, wherein: the positioning assembly comprises a limiting top block (21) and a positioning driving cylinder (22) for driving the limiting top block (21) to move towards the supporting rod; the side wall of the lower end of the supporting rod (20) is provided with a guide inclined plane (20.1), and one end, close to the supporting rod (20), of the limiting top block (21) is provided with an inclined plane matched with the guide inclined plane (20.1).
10. The tooling positioning apparatus of claim 9, wherein: be equipped with elastic component (23) between the lower terminal surface of the bottom of holding hole (19.1) and bracing piece (20), be equipped with on the lateral wall of connecting block (19) along its axial extension and with waist type hole (19.2) of holding hole (19.1) intercommunication, waist type hole (19.2) fit in has set screw (24), just the end connection of set screw (24) is fixed on the lateral wall of bracing piece (20).
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| CN202011626049.XA CN112847187A (en) | 2020-12-31 | 2020-12-31 | Engine cylinder head cover and processing and positioning device thereof |
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| CN202011626049.XA CN112847187A (en) | 2020-12-31 | 2020-12-31 | Engine cylinder head cover and processing and positioning device thereof |
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| CN102758665A (en) * | 2011-04-27 | 2012-10-31 | 广西玉柴机器股份有限公司 | Oil-gas preseparation device |
| CN206386170U (en) * | 2016-11-16 | 2017-08-08 | 浙江吉利罗佑发动机有限公司 | A kind of labyrinth type oil-gas separator |
| CN106438099A (en) * | 2016-11-30 | 2017-02-22 | 重庆小康工业集团股份有限公司 | Air cylinder cover |
| US20180207565A1 (en) * | 2017-01-25 | 2018-07-26 | Toyota Boshoku Kabushiki Kaisha | Oil mist separator |
| CN107738125A (en) * | 2017-11-27 | 2018-02-27 | 宁波裕隆汽车制泵有限公司 | Engine transition connecting plate positioning tool |
| CN107971792A (en) * | 2017-11-29 | 2018-05-01 | 宁波裕隆汽车制泵有限公司 | Engine water pump volute chamber protecgulum clamping tool |
| CN209369945U (en) * | 2019-01-07 | 2019-09-10 | 沈阳航天新光汽车零部件有限公司 | There are two the automobile engine cylinder head casing lids of gs-oil separator for a kind of tool |
| CN210195882U (en) * | 2019-06-04 | 2020-03-27 | 一汽解放汽车有限公司 | A cylinder head cover with an engine blow-by gas oil separation device |
| CN211975107U (en) * | 2019-12-31 | 2020-11-20 | 潍柴动力扬州柴油机有限责任公司 | Crankcase oil gas treatment mechanism and engine provided with same |
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Application publication date: 20210528 |