CN220791315U - Spacing gasket seal and turbocharger - Google Patents

Abstract

The utility model relates to the technical field of turbocharging, and particularly discloses a limiting sealing gasket and a turbocharger, wherein the limiting sealing gasket comprises a gasket body and a plurality of buckles, the gasket body is connected with a flange, annular convex ribs and annular concave ribs are arranged on the gasket body, the annular convex ribs and the annular concave ribs respectively protrude out of the surface of the gasket body towards opposite directions, the plurality of buckles are uniformly arranged along the circumferential direction of the gasket body, the buckles are welded or integrally formed with the gasket body, and the inner side surfaces of the buckles can be attached to the circumferential surface of the outer edge of the flange. Set up annular protruding muscle and annular concave muscle opposite towards, annular protruding muscle and annular concave muscle seal respectively to promote sealed effect by a wide margin, set up a plurality of buckles that laminate with flange outer fringe global, a plurality of buckles combined action, limited that spacing gasket is slided on the installation face, can not hinder waste gas to get into the spiral case, consequently avoided unnecessary energy loss.

Description

Spacing gasket seal and turbocharger

Technical Field

The utility model relates to the technical field of turbocharging, in particular to a limiting sealing gasket and a turbocharger.

Background

The turbocharger has the advantages that the energy of exhaust gas is very high during operation, high-temperature and high-pressure gas impacts the turbine to rotate, the inlet of the turbocharger volute is communicated with the flange structure of the exhaust end of the engine through the flange structure, and a sealing gasket is arranged between the flange structure and the flange structure to prevent gas leakage. In the prior art, most stainless steel materials of sealing gasket set up the continuous sealing rib of round simultaneously, after the installation, sealing gasket's sealing rib is extruded, sealing gasket and installation face laminating more to promote sealed effect. However, when the turbocharger is stopped, the working environment where the sealing gasket is positioned is normal temperature and normal pressure; when the turbocharger runs, the working environment where the sealing gasket is located is high temperature and high pressure, the load fluctuation range of the sealing gasket is severe, and the sealing effect is reduced due to fatigue at the positions of the sealing ribs along with the increase of the service time. Meanwhile, after the sealing ribs are disassembled and assembled for many times, the sealing ribs are easy to deform, and the sealing effect is also reduced.

In addition, the hole site control accuracy requirement of the flange connection hole is generally lower, and the aperture of the mounting hole of the sealing gasket is larger than that of the flange connection hole. Therefore, in the installation process, the sealing gasket is easy to slide along the radial direction, so that an exhaust gas hole of the sealing gasket is not aligned with an air inlet hole of the volute, namely, part of the gasket structure can obstruct the exhaust gas from entering the volute, thereby causing energy loss and reducing the use efficiency of the exhaust gas.

Disclosure of Invention

The utility model aims to provide a limiting sealing gasket and a turbocharger, which are used for solving the problems that the sealing effect of the existing sealing gasket is poor and the sealing gasket part structure prevents waste gas from entering a volute to cause energy loss.

The utility model provides a limiting sealing gasket which comprises a gasket body and a plurality of buckles, wherein the gasket body is connected with a flange, annular convex ribs and annular concave ribs are arranged on the gasket body, the annular convex ribs and the annular concave ribs respectively protrude out of the surface of the gasket body towards opposite directions, the plurality of buckles are uniformly arranged along the circumferential direction of the gasket body, the buckles are welded or integrally formed with the gasket body, and the inner side surfaces of the buckles can be attached to the circumferential surface of the outer edge of the flange.

As the preferable technical scheme of the limiting sealing gasket, the height of the annular convex ribs protruding out of the surface of the gasket body is equal to the height of the annular concave ribs protruding out of the surface of the gasket body.

As the preferential technical scheme of spacing sealing gasket, the buckle is provided with big end and tip, and the width of big end is greater than the width of tip, and big end and gasket body welding or integrated into one piece set up, along the direction of big end to tip, the width of buckle reduces gradually.

As the preferential technical scheme of spacing seal gasket, still be provided with the hasp on the buckle, the hasp sets up the one end of keeping away from the gasket body, the hasp be used for with flange joint.

As the preferential technical scheme of spacing gasket, the gasket body still is provided with the exhaust gas hole, and the diameter of exhaust gas hole is greater than or equal to the diameter of the inlet port of flange, and the exhaust gas hole can be aligned with the inlet port.

As the preferable technical proposal of the limiting sealing gasket, the small end is provided with an introduction part which is used for being sleeved on the outer edge of the flange and guiding the exhaust gas hole to be aligned with the air inlet hole.

As the preferential technical scheme of spacing sealing gasket, the gasket body still is provided with a plurality of mounting holes, and the pore wall of at least one mounting hole outwards extends and forms the flange that protrudes in the gasket body, and the flange is used for cooperating with the pore wall of the connecting hole of flange in order to spacing the gasket body.

The utility model provides a turbocharger, which comprises a turbocharger body, a volute, a flange and a limiting sealing gasket in any scheme, wherein the turbocharger body is arranged in the volute, the air inlet end of the volute is connected with the flange, and the limiting sealing gasket is connected with the flange.

The beneficial effects of the utility model are as follows:

the utility model provides a limiting sealing gasket which comprises a gasket body and a plurality of buckles, wherein the gasket body is connected with a flange, annular convex ribs and annular concave ribs are arranged on the gasket body, the annular convex ribs and the annular concave ribs respectively protrude out of the surface of the gasket body towards opposite directions, the plurality of buckles are uniformly arranged along the circumferential direction of the gasket body, the buckles are welded or integrally formed with the gasket body, and the inner side surfaces of the buckles can be attached to the circumferential surface of the outer edge of the flange. Set up annular protruding muscle and annular concave muscle opposite towards, annular protruding muscle and annular concave muscle seal respectively to promote sealed effect by a wide margin, set up a plurality of buckles that laminate with flange outer fringe global, a plurality of buckles combined action, limited that spacing gasket is slided on the installation face, can not hinder waste gas to get into the spiral case, consequently avoided unnecessary energy loss.

Drawings

FIG. 1 is a schematic view of a first embodiment of a connection structure between a limit gasket and a scroll casing;

FIG. 2 is a second schematic view of a connection structure between a limit gasket and a scroll casing according to the first embodiment of the present utility model;

FIG. 3 is a cross-sectional view taken along the direction A-A in FIG. 2;

FIG. 4 is a schematic view of a first view of a spacing gasket according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a second view of a spacing gasket according to an embodiment of the present utility model;

FIG. 6 is a front view of a spacing gasket seal in accordance with a first embodiment of the present utility model;

FIG. 7 is a cross-sectional view taken along the direction B-B in FIG. 6;

fig. 8 is a schematic structural diagram of a limiting gasket seal in a second embodiment of the present utility model.

In the figure:

100. a volute; 200. a flange; 210. a connection hole;

1. a gasket body; 11. a mounting hole; 111. a flange; 12. annular ribs; 13. annular concave ribs; 14. a buckle; 141. locking; 15. exhaust gas holes.

Detailed Description

The following description of the embodiments of the present utility model will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first location" and "second location" are two distinct locations and wherein the first feature is "above," "over" and "over" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is level above the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

Example 1

As shown in fig. 1-7, the utility model provides a limiting sealing gasket, which comprises a gasket body 1 and a plurality of buckles 14, wherein the gasket body 1 is connected with a flange 200, an annular convex rib 12 and an annular concave rib 13 are arranged on the gasket body 1, the annular convex rib 12 and the annular concave rib 13 respectively protrude out of the surface of the gasket body 1 towards opposite directions, the plurality of buckles 14 are uniformly arranged along the circumferential direction of the gasket body 1, the buckles 14 are welded or integrally formed with the gasket body 1, and the inner side surface of each buckle 14 can be attached to the circumferential surface of the outer edge of the flange 200. The annular convex ribs 12 and the annular concave ribs 13 with opposite directions are arranged, the annular convex ribs 12 and the annular concave ribs 13 are respectively sealed, so that the sealing effect is greatly improved, a plurality of buckles 14 attached to the peripheral surface of the outer edge of the flange 200 are arranged along the circumferential direction of the gasket, the buckles 14 are jointly acted, the limit sealing gasket is limited to slide on the mounting surface, waste gas cannot be blocked from entering the volute 100, and unnecessary energy loss is avoided.

Further, as shown in fig. 3 and 7, the height of the annular bead 12 protruding from the surface of the gasket body 1 is equal to the height of the annular bead 13 protruding from the surface of the gasket body 1. After the limiting sealing gasket is mounted on the flange 200, one of the annular convex ribs 12 and the annular concave ribs 13 is abutted against the flange 200, and the other is abutted against the exhaust end of the engine, so that the two contact positions of the limiting sealing gasket are sealed, and a good sealing effect is ensured. It will be appreciated that the annular bead 12 and the annular bead 13 are oppositely disposed. In the present embodiment, one of the outer sides is provided as an annular bead 12 whose protruding direction is directed toward the flange 200; one of the inner sides is provided as an annular bead 13 whose protruding direction is directed toward the exhaust end of the engine. In other embodiments, the positions of the annular concave ribs 13 and the annular convex ribs 12 may be interchanged, so that the same sealing effect can be achieved, and detailed description is omitted herein.

Further, as shown in fig. 4-5, the clasp 14 is provided with a large end and a small end. The width of the large end is greater than the width of the small end. The large end and the gasket body 1 are welded or integrally formed, and the width of the buckle 14 is gradually reduced along the direction from the large end to the small end so as to strengthen the structural strength of the buckle 14. The side of the buckle 14 contacted with the outer edge of the flange 200, that is, the inner side of the buckle 14 is provided with an arc shape, the arc shape is consistent with the arc shape of the outer edge of the flange 200 at the contact position, and therefore the inner side of the buckle 14 can be attached to the outer edge of the flange 200.

Specifically, as shown in fig. 5 and 7, the buckle 14 is further provided with a lock catch 141, where the lock catch 141 is disposed at an end far away from the gasket body 1, and the lock catch 141 is used for being clamped with the flange 200. The lock catch 141 and the lock catch 14 are preferably integrally formed, one end, away from the gasket body 1, of the lock catch 141 is integrally formed with the lock catch 14, the other end of the lock catch 141 is tilted inwards, and the lock catch 14 is provided with a containing hole for containing the lock catch 141. When the limiting gasket is installed, the small end of the buckle 14 is firstly contacted with the outer edge of the flange 200, then the buckle 141 is contacted with the outer edge of the flange 200 and is elastically deformed, and the buckle 141 is pressed into the accommodating hole. After the spacing sealing gasket is placed in place, the lock catch 141 is separated from the outer edge of the flange 200, and the lock catch 141 pops up from the accommodating hole under the elastic acting force of the lock catch 141, and is clamped on one side of the flange 200 away from the gasket body 1, so that the spacing sealing gasket is prevented from falling off, and the final installation of the spacing sealing gasket is conveniently completed.

Further, the gasket body 1 is also provided with exhaust gas holes 15 and a plurality of mounting holes 11. The diameter of the exhaust gas holes 15 is larger than the diameter of the inlet holes of the flange 200, and the exhaust gas holes 15 can be aligned with the inlet holes. The aperture of the mounting holes 11 is equal to or larger than the aperture of the mounting holes 11 of the flange 200, the mounting holes 11 can be aligned with the connection holes 210, and the number of the mounting holes 11 is identical to the number of the connection holes 210 of the flange 200. Since the diameter of the exhaust gas hole 15 is larger than the diameter of the intake hole of the flange 200, it is possible to prevent the gasket body 1 from blocking the intake hole to a certain extent to hinder the intake of exhaust gas when mounting. The small end of the clasp 14 is provided with an lead-in portion, which in this embodiment is a lead-in angle provided inside the small end. The guiding portion is used to be sleeved on the outer edge of the flange 200, and the buckle 14 can be matched with the outer edge of the flange 200 more smoothly through the guiding portion. When the limit sealing gasket is installed, the buckle 14 is led into the outer edge of the flange 200 through the leading-in part, and the inner side of the buckle 14 is matched with the outer edge of the flange 200, namely, the inner side surface of the buckle 14 and the outer edge peripheral surface of the flange 200 form surface constraint, and under the combined action of the buckle 14 and the flange 200, the exhaust gas hole 15 on the limit sealing gasket is guided to be aligned with the air inlet hole of the flange 200, and meanwhile, the mounting hole 11 on the sealing gasket is aligned with the connecting hole 210 of the flange 200. After the limiting sealing gasket is placed in place, the lock catch 141 is clamped with the flange 200, so that the limiting sealing gasket cannot deviate and cannot fall off from the flange 200. And then the exhaust end of the engine, the limiting sealing gasket and the flange 200 are fixedly connected through fasteners. The sealing effect is ensured, and the exhaust gas energy loss caused by the shielding of the gasket body 1 by the air inlet hole of the flange 200 is avoided.

The utility model provides a turbocharger, which comprises a turbocharger body, a volute 100, a flange 200 and a limiting sealing gasket in the embodiment. The supercharger body is arranged in the volute 100, the air inlet end of the volute 100 is connected with a flange 200, and the limiting sealing gasket is connected with the flange 200. Through setting up spacing sealing gasket in this embodiment, when promoting sealed effect, also can avoid waste gas energy loss.

Example two

To avoid redundancy, only one difference from the embodiment is described in the present embodiment. The present embodiment is different from the first embodiment in that: as shown in fig. 8, the hole wall of at least one mounting hole 11 extends outwards to form a flange 111 protruding from the gasket body 1, and the flange 111 is used for being matched with the hole wall of the connecting hole 210 of the flange 200 to limit the gasket body 1. Hole site alignment and limiting are conveniently carried out during installation by arranging the flange 111 to be matched with the hole wall of the connecting hole 210, and installation accuracy is further improved.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (8)

1. Spacing gasket, its characterized in that includes:

the gasket comprises a gasket body (1), wherein the gasket body (1) is connected with a flange (200), an annular convex rib (12) and an annular concave rib (13) are arranged on the gasket body (1), and the annular convex rib (12) and the annular concave rib (13) respectively protrude out of the surface of the gasket body (1) towards opposite directions;

the gasket comprises a gasket body (1), a plurality of buckles (14), wherein the buckles (14) are uniformly arranged along the circumferential direction of the gasket body (1), the buckles (14) are welded with the gasket body (1) or are integrally formed, and the inner side surface of each buckle (14) can be attached to the circumferential surface of the outer edge of the flange (200).

2. The limiting gasket seal according to claim 1, characterized in that the height of the annular bead (12) protruding from the surface of the gasket body (1) is equal to the height of the annular bead (13) protruding from the surface of the gasket body (1).

3. The spacing gasket according to claim 1, characterized in that the clasp (14) is provided with a large end and a small end, the width of the large end is larger than the width of the small end, the large end is welded or integrally formed with the gasket body (1), and the clasp (14) gradually decreases in width along the direction from the large end to the small end.

4. A spacing gasket according to claim 3, characterized in that the catch (14) is further provided with a catch (141), the catch (141) being arranged at an end remote from the gasket body (1), the catch (141) being adapted to be snapped with the flange (200).

5. A spacing gasket according to claim 3, characterized in that the gasket body (1) is further provided with exhaust gas holes (15), the diameter of the exhaust gas holes (15) being equal to or larger than the diameter of the inlet holes of the flange (200), the exhaust gas holes (15) being alignable with the inlet holes.

6. The spacing gasket of claim 5, wherein the small end is provided with an introduction portion for being sleeved on the outer edge of the flange (200) and guiding the exhaust gas holes (15) to be aligned with the intake holes.

7. The spacing sealing gasket according to any of the claims 1-6, characterized in that the gasket body (1) is further provided with a plurality of mounting holes (11), the hole wall of at least one of the mounting holes (11) extends outwards to form a flange (111) protruding out of the gasket body (1), the flange (111) being adapted to cooperate with the hole wall of the connecting hole (210) of the flange (200) to spacing the gasket body (1).

8. Turbocharger comprising a turbocharger body, a volute (100) and a flange (200), wherein the turbocharger body is arranged in the volute (100), and the air inlet end of the volute (100) is connected with the flange (200), and the turbocharger is characterized by further comprising the limit sealing gasket according to any one of claims 1-7, and the limit sealing gasket is connected with the flange (200).