CN217716786U

CN217716786U - Large-cavity leakage detection device for engine cylinder block

Info

Publication number: CN217716786U
Application number: CN202221323614.XU
Authority: CN
Inventors: 李吉祥
Original assignee: Xiangyang Meilixin Science & Technology Co ltd
Current assignee: Xiangyang Meilixin Science & Technology Co ltd
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2022-11-01
Anticipated expiration: 2032-05-30

Abstract

The utility model relates to a big chamber leak hunting device of engine cylinder body for the shutoff cylinder body, it includes: the first sealing plate is paved with a first sealing gasket, and the first sealing gasket is used for sealing the upper joint surface of the cylinder body; the second sealing gasket is paved on the second plugging plate and used for sealing the matching surface of the cylinder cover of the cylinder body, the second plugging plate and the first plugging plate are arranged in parallel at intervals, and the first plugging plate and the second plugging plate are fixedly connected; and the plugging piece is used for being matched with the first plugging plate and the second plugging plate to plug other positions of the cylinder body. Because the top and the bottom of the cylinder body are plugged by the plugging plates, the two plugging plates are fixedly connected, the plugging piece is matched with the plugging plates to plug other positions of the cylinder body, and a gas tightness test is performed after plugging so as to identify the non-compact position of the engine cylinder body, the structure is simple, the assembly is convenient, and the cost is low.

Description

Large-cavity leakage detection device for engine cylinder block

Technical Field

The utility model relates to an engine field, in particular to big chamber leak hunting device of engine cylinder body.

Background

The engine cylinder body is an assembly for bearing all parts, the cylinder body structure has an approximate hexahedron box structure, a thin wall, a plurality of processing surfaces and holes, and the air tightness test plays an important role in ensuring the product quality in the manufacturing process of the engine.

With the improvement of casting quality, processing quality and assembly quality and the application of an online air tightness leakage detection technology since the 80 s in the 20 th century, the quality of an engine is also reliably ensured. On-line airtight leakage test is carried out on production lines of cylinder blocks, cylinder heads and the like by adopting a French ATEQ F620 leakage tester in combination with plugging equipment, so that quality problems and potential safety hazards caused by poor sealing performance can be effectively reduced.

However, the leakage detection equipment has a complex structure and high cost, and is time-consuming and labor-consuming to assemble with the cylinder body during testing.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a big chamber leak hunting device of engine cylinder body to it is complicated, with high costs to solve leak hunting equipment structure in the correlation technique, problem that wastes time and energy with the cylinder body assembly when testing.

In a first aspect, a large-cavity leakage detecting device for an engine cylinder block is provided, which is used for blocking the cylinder block and comprises: the first sealing plate is paved with a first sealing gasket, and the first sealing gasket is used for sealing the upper joint surface of the cylinder body; the second sealing gasket is paved on the second plugging plate and used for sealing the matching surface of the cylinder cover of the cylinder body, the second plugging plate and the first plugging plate are arranged in parallel at intervals, and the first plugging plate and the second plugging plate are fixedly connected; and the plugging piece is arranged between the first plugging plate and the second plugging plate and is used for being matched with the first plugging plate and the second plugging plate to plug other positions of the cylinder body.

In some embodiments, the blocking piece includes a blocking bolt, the blocking bolt is mounted on each of the first blocking plate and the second blocking plate, and the blocking bolt is used for blocking a threaded hole of the cylinder block.

In some embodiments, a third sealing gasket is disposed on one side of the blocking bolt, the blocking bolt is sealed with the first blocking plate through the third sealing gasket, and the blocking bolt is sealed with the second blocking plate through the third sealing gasket.

In some embodiments, the blocking member includes a third blocking plate connected to the first blocking plate, and the third blocking plate is used for blocking the main oil passage oil outlet of the cylinder block.

In some embodiments, a connecting plate is mounted on a side of the second blocking plate close to the first blocking plate, and an abutting member is mounted on the connecting plate, extends in a direction close to the third blocking plate, and abuts against the outer side of the third blocking plate.

In some embodiments, the abutment member is movably mounted to the web, and the abutment member is movable on the web in an axial direction thereof.

In some embodiments, the blocking member includes a fourth blocking plate installed on a side of the second blocking plate close to the first blocking plate, and the fourth blocking plate is used for blocking a pulley matching surface of the cylinder body.

In some embodiments, a side of the fourth blocking plate close to the first blocking plate is provided with a curved surface for matching with the matching surface of the pulley.

In some embodiments, the blocking piece comprises a plunger, and the plunger is used for blocking the high-pressure oil outlet of the cylinder body.

In some embodiments, the first and second closure plates are connected by fastening bolts spaced around a circumference of the first and second closure plates.

The utility model provides a beneficial effect that technical scheme brought includes:

the embodiment of the utility model provides a big chamber leak hunting device of engine cylinder body owing to adopt the shutoff of shutoff board in the top and the bottom of cylinder body, fixed connection between two shutoff boards to adopt shutoff piece cooperation shutoff board to other position shutoff of cylinder body, carry out the gas tightness test after the shutoff, so that discern the non-fine and close position of engine cylinder body, simple structure, convenient assembling, low cost.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is an assembly structural schematic diagram of a large-cavity leak detection device for an engine cylinder block according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of a large-cavity leak detection device for an engine cylinder block according to an embodiment of the present invention;

fig. 3 is a schematic perspective view of another angle of the large cavity leak detection apparatus for an engine cylinder block according to an embodiment of the present invention;

FIG. 4 is a schematic perspective view of the cylinder;

fig. 5 is a schematic perspective view of another angle of the cylinder.

Reference numbers in the figures:

1. a first plugging plate; 11. a first gasket; 2. a cylinder body; 21. an upper bonding surface; 22. a cylinder cover matching surface; 23. a threaded hole; 24. a main oil gallery outlet; 25. a belt pulley mating surface; 26. a high-pressure oil outlet hole; 3. a second plugging plate; 31. a second gasket; 4. plugging the bolt; 5. a third plugging plate; 51. a connecting plate; 52. an abutting member; 6. a fourth plugging plate; 7. a plunger; 8. and fastening the bolt.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and obviously, the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The embodiment of the utility model provides a big chamber leak hunting device of engine cylinder body, it can solve leak hunting equipment structure complicacy among the correlation technique, and is with high costs, problem that wastes time and energy with the cylinder body assembly when the test.

Referring to fig. 1-5, for the embodiment of the present invention provides a large-cavity leak detection device for an engine cylinder block, which is used for plugging a cylinder block 2, and may include: the first sealing plate 1 is paved with a first sealing gasket 11, and the first sealing gasket 11 is used for sealing the upper combining surface 21 of the cylinder body 2; the second plugging plate 3 is paved with a second sealing gasket 31, the second sealing gasket 31 is used for plugging the cylinder cover matching surface 22 of the cylinder body 2, the second plugging plate 3 and the first plugging plate 1 are arranged in parallel at intervals, and the first plugging plate 1 and the second plugging plate 3 are fixedly connected; in the embodiment, a cylinder cover matching surface 22 and an upper combining surface 21 of the cylinder body 2 are respectively positioned on the bottom surface and the top surface of the cylinder body 2, the first blocking plate 1 and the second blocking plate 3 are used for surface sealing, and the other positions of the cylinder body 2 are blocked by matching with the blocking piece, so that the structure is simple, the use is convenient, the cost is low, the non-compact position of the engine cylinder body can be conveniently identified, and concretely, the testing method is that under the condition of room temperature, the cylinder body is immersed in water after 1.5 +/-0.5 bar of air is filled into a large cavity of the cylinder body, and whether bubbles are emitted from the outside of the cylinder body 2 is observed.

Referring to fig. 2, fig. 3, fig. 4 and fig. 5, in some embodiments, the blocking member may include a blocking bolt 4, the blocking bolt 4 is mounted on each of the first blocking plate 1 and the second blocking plate 3, and the blocking bolt 4 is used for blocking the threaded hole 23 of the cylinder body 2.

Referring to fig. 2 and 3, in some embodiments, a third sealing gasket may be disposed on one side of the blocking bolt 4, the blocking bolt 4 and the first blocking plate 1 are sealed by the third sealing gasket, and the blocking bolt 4 and the second blocking plate 3 are sealed by the third sealing gasket, in this embodiment, the blocking bolt 4 presses the third sealing gasket against the first blocking plate 1 or the second blocking plate 3, so that the air tightness of a place where the blocking bolt 4 is connected to the first blocking plate 1 or the second blocking plate 3 may be ensured, and a test result is more accurate.

Referring to fig. 1 and 5, in some embodiments, the blocking member includes a third blocking plate 5 connected to the first blocking plate 1, and the third blocking plate 5 is used for blocking the main oil passage oil outlet 24 of the cylinder body 2, in this embodiment, the third blocking plate 5 is located on the side surface of the cylinder body 2, and when the blocking member is used, the third blocking plate 5 seals and covers the main oil passage oil outlet 24 and the cooling water outlet on the side surface of the cylinder body 2, so that the airtightness of the main oil passage oil outlet 24 and the cooling water outlet can be checked, and the blocking member is simple to install, convenient to use, and high in efficiency.

Referring to fig. 1 and 5, in some embodiments, a connecting plate 51 may be installed on a side of the second blocking plate 3 close to the first blocking plate 1, an abutting member 52 is installed on the connecting plate 51, the abutting member 52 extends in a direction close to the third blocking plate 5 and abuts against an outer side of the third blocking plate 5, in this embodiment, the shape of the second blocking plate 3 matches with the shape of a region where the main oil gallery oil outlet 24 and the cooling water outlet are provided on the cylinder body 2, the second blocking plate 3 is installed on the outer side of the region through bolts, and the third blocking plate 5 is pressed tightly by using the abutting member 52, so that the third blocking plate 5 has a better sealing effect on the main oil gallery oil outlet 24 and the cooling water outlet, and the test result is more accurate.

Referring to fig. 1 and 5, further, the abutting piece 52 may be movably mounted on the connecting plate 51, and the abutting piece 52 may be movable on the connecting plate 51 along the axial direction thereof, in this embodiment, the abutting piece 52 may be movable in a direction approaching or departing from the connecting plate 51, so that the leak detection device may be applied to different types of cylinders 2, and the universality of the leak detection device is improved.

Referring to fig. 2 and 5, in some embodiments, the blocking member may include a fourth blocking plate 6 installed on one side of the second blocking plate 3 close to the first blocking plate 1, and the fourth blocking plate 6 is used for blocking the pulley matching surface 25 of the cylinder body 2, in this embodiment, there are two fourth blocking plates 6 with different volumes, which are respectively blocked on the pulley matching surfaces 25 at two ends of the cylinder body 2, so as to check the air tightness of the pulley matching surfaces 25, and the fourth blocking plate 6 is installed on the second blocking plate 3 by bolts, which is simple to install and convenient to use.

As shown in fig. 2 and 5, further, one side of the fourth plugging plate 6 close to the first plugging plate 1 may be provided with a curved surface for matching with the belt pulley matching surface 25, in this embodiment, the belt pulley matching surface 25 is in a semi-circular arc shape, the fourth plugging plate 6 is in a semi-circular shape, the top plane of the fourth plugging plate 6 is fixed on the second plugging plate 3 through a bolt, the bottom curved surface is plugged on the belt pulley matching surface 25, the fourth plugging plate 6 is compressed by the second plugging plate 3 to be matched and sealed with the belt pulley matching surface 25, the sealing effect is good, and the test result is more accurate.

Referring to fig. 2 and 5, in some embodiments, the blocking member may include a plunger 7, the plunger 7 is a non-standard nylon column for blocking the high pressure oil outlet 26 of the cylinder 2, and in use, the plunger 7 may be inserted into the high pressure oil outlet 26 to check the air tightness of the high pressure oil outlet 26, which is simple in result, convenient to install, and low in cost.

Referring to fig. 1 and 2, in some embodiments, the first plugging plate 1 and the second plugging plate 3 may be connected by fastening bolts 8, the fastening bolts 8 are arranged at intervals around a circumference of the first plugging plate 1 and the second plugging plate 3, in this embodiment, the distance between the first plugging plate 1 and the second plugging plate 3 may be adjusted by the fastening bolts 8, so that the leak detection apparatus may be applied to different types of cylinder bodies 2, and the fastening bolts 8 are arranged around a circumference of the edges of the first plugging plate 1 and the second plugging plate 3, so that the tightness between the first plugging plate 1 and the second plugging plate 3 and the cylinder body 2 may be improved, and the sealing effect may be better.

The embodiment of the utility model provides a pair of engine cylinder block's big chamber leak hunting device's principle does:

through adopting a plurality of shutoff boards and shutoff pieces, the sealed mode of joint line seal and face seal carries out the shutoff to the big chamber region of cylinder body, simple structure, and low cost can carry out the gas tightness test after the shutoff to discern the non-fine and close position of engine cylinder body, sealed effectual, convenient assembling.

In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; 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 meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It is noted that, in the present invention, relational terms such as "first" and "second", and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

The above description is only exemplary of the invention, and is intended to enable those skilled in the art to understand and implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A large-cavity leakage detection device for an engine cylinder block is used for blocking the cylinder block (2), and is characterized by comprising:

the first sealing plate (1) is paved with a first sealing gasket (11), and the first sealing gasket (11) is used for sealing an upper joint surface (21) of the cylinder body (2);

the second sealing plate (3) is paved with a second sealing gasket (31), the second sealing gasket (31) is used for sealing the cylinder cover matching surface (22) of the cylinder body (2), the second sealing plate (3) and the first sealing plate (1) are arranged in parallel at intervals, and the first sealing plate (1) and the second sealing plate (3) are fixedly connected;

and the plugging piece is arranged between the first plugging plate (1) and the second plugging plate (3), and is used for being matched with the first plugging plate (1) and the second plugging plate (3) to plug other positions of the cylinder body (2).

2. An engine block large bore leak detection apparatus as defined in claim 1, wherein:

the plugging piece comprises a plugging bolt (4), the first plugging plate (1) and the second plugging plate (3) are all provided with the plugging bolt (4), and the plugging bolt (4) is used for plugging the threaded hole (23) of the cylinder body (2).

3. An engine block large bore leak detection apparatus as defined in claim 2, wherein:

one side of shutoff bolt (4) is equipped with the third and seals up the pad, shutoff bolt (4) with pass through between first shutoff board (1) the third seals up the pad sealedly, shutoff bolt (4) with pass through between second shutoff board (3) the third seals up the pad sealedly.

4. An engine block large bore leak detection apparatus as defined in claim 1, wherein:

the blocking piece comprises a third blocking plate (5) which is connected with the first blocking plate (1), and the third blocking plate (5) is used for blocking a main oil passage oil outlet (24) of the cylinder body (2).

5. Large cavity leak detection apparatus for an engine block according to claim 4, characterized in that:

the second shutoff board (3) are close to connecting plate (51) are installed to one side of first shutoff board (1), install butt piece (52) on connecting plate (51), butt piece (52) are to being close to the direction of third shutoff board (5) extends, and the butt in the outside of third shutoff board (5).

6. Large-cavity leak detection apparatus for an engine block according to claim 5, characterized in that:

the abutting piece (52) is movably mounted on the connecting plate (51), and the abutting piece (52) can move on the connecting plate (51) along the axial direction of the abutting piece.

7. An engine block large bore leak detection apparatus as defined in claim 1, wherein:

the plugging piece comprises a fourth plugging plate (6) which is arranged on one side, close to the first plugging plate (1), of the second plugging plate (3), and the fourth plugging plate (6) is used for plugging a belt pulley matching surface (25) of the cylinder body (2).

8. An engine block large bore leak detection apparatus as defined in claim 7, wherein:

one side of the fourth plugging plate (6) close to the first plugging plate (1) is provided with a curved surface used for being matched with the belt pulley matching surface (25).

9. An engine block large bore leak detection apparatus as defined in claim 1, wherein:

the plugging piece comprises a plunger (7), and the plunger (7) is used for plugging a high-pressure oil outlet (26) of the cylinder body (2).

10. An engine block large bore leak detection apparatus as defined in claim 1, wherein:

the first plugging plate (1) and the second plugging plate (3) are connected through fastening bolts (8), and the fastening bolts (8) are arranged around the first plugging plate (1) and the second plugging plate (3) at intervals.