Supporting structure of EGR cooler and EGR cooler structure

Abstract

The supporting structure of the EGR cooler and the EGR cooler structure are used for reducing the situation that the EGR cooler falls off and improving the stability of the EGR cooler. The device comprises a mounting plate, a supporting plate and a hoop, one end of the mounting plate is connected with an engine body, and the other end of the mounting plate is connected with the supporting plate; extension columns are arranged at the two ends of the supporting plate correspondingly and vertically extend upwards to the two sides of the EGR cooler. The two ends of the clamp are connected with the extending columns respectively, a surrounding space is formed in the clamp, the size of the surrounding space is matched with that of the EGR cooler, and the EGR cooler is fixed by the clamp through the surrounding space.

Description

Technical Field

[0001] The present application relates to the field of engine technology, and in particular to a support structure of an EGR cooler and an EGR cooler structure. Background Art

[0002] EGR is the abbreviation of exhaust gas recirculation system, which reduces the temperature in the combustion chamber and the nitrogen oxide content in the exhaust gas by introducing a small amount of burned exhaust gas into the intake pipe. However, the temperature of the exhaust gas discharged from the cylinder is very high, so a cooler needs to be connected to the EGR pipe.

[0003] The EGR cooler can further reduce the temperature of the exhaust gas participating in the recirculation, thereby further reducing the maximum peak combustion temperature. In addition, it can also reduce the temperature of the exhaust gas entering the cylinder, which is beneficial to the engine thermal load and reduces the engine temperature.

[0004] The existing EGR cooler is usually fixed on the engine, wherein a smaller connecting plate extends from the bottom of the EGR cooler, the connecting plate contacts the engine and is screwed into the engine through bolts passing through a connecting rod, thereby achieving connection between the EGR cooler and the engine. However, vibration is generated during the operation of the engine. Since the contact area between the connecting plate and the EGR cooler is small, the vibration amplitude of the EGR cooler is large, which can easily lead to the breakage of the connecting plate and may also cause the EGR cooler to fall off.

[0005] Therefore, there is an urgent need for a supporting structure of an EGR cooler to solve the above technical problems. Utility Model Content

[0006] In order to solve the above technical problems, the present application provides a support mechanism for an EGR cooler and an EGR cooler structure, which can reduce the possibility of the EGR cooler falling off and improve the stability of the EGR cooler.

[0007] A first aspect of the present application provides a support structure for an EGR cooler, comprising:

[0008] A mounting plate, a support plate and a clamp; one end of the mounting plate is connected to the engine body, and the other end is connected to the support plate; both ends of the support plate are respectively provided with extension columns, and the extension columns extend vertically upward to both sides of the EGR cooler; both ends of the clamp are respectively connected to the extension columns, and an enclosing space is formed in the clamp, the size of the enclosing space matches the size of the EGR cooler, and the clamp fixes the EGR cooler through the enclosing space.

[0009] Optionally, the clamp includes an upper half hoop and a lower half hoop that are detachably connected, the middle position of the lower half hoop is recessed downward and lower than the top of the extension column, the middle position of the upper half hoop protrudes upward and higher than the top of the extension column, and the upper half hoop and the lower half hoop cooperate to form the enclosed space.

[0010] Optionally, both ends of the upper half hoop and the lower half hoop are provided with connection holes, and bolts pass through the connection holes to connect with the extension column.

[0011] Optionally, the mounting plate and the support plate are integrally formed.

[0012] Optionally, two mounting holes are provided on the mounting plate, and the mounting plate is connected to the bolts of the engine body through the mounting holes.

[0013] Optionally, reinforcing ribs are provided between the extension column and the support plate.

[0014] Optionally, the mounting plate and the supporting plate are arranged perpendicular to each other.

[0015] The second aspect of the present application provides an EGR cooler structure, comprising an EGR cooler and three supporting structures as described in the first aspect and any one of the optional methods of the first aspect, wherein the EGR cooler is connected to the engine body, one end of the three supporting structures is connected to the engine body, and the other end is fixed to the EGR cooler by a clamp.

[0016] Optionally, the support plate and the mounting plate in the support structure close to the air intake end of the EGR cooler are arranged in a conical shape.

[0017] It can be seen from the above technical solutions that this application has the following effects:

[0018] A mounting plate is provided to be connected to the engine body, and the support plate is connected to the mounting plate. Extension columns extending upward to both sides of the EGR cooler are provided at both ends of the mounting plate. The EGR cooler is fixed by providing a clamp, and the two ends of the clamp are respectively fixed on the two extension columns. Thus, the connection between the EGR cooler and the engine body is achieved, and the contact area between the clamp and the EGR cooler is large, the strength of the support plate and the mounting plate is strong, the connection stability between the EGR cooler and the engine body is improved, and when the engine body vibrates, the EGR cooler is less likely to fall off, thereby providing a better protection for the EGR cooler. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution in the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 A schematic diagram of a support structure of an EGR cooler of the present application;

[0021] Figure 2 Another schematic diagram of a support structure of an EGR cooler of the present application;

[0022] Figure 3 Another schematic diagram of a support structure of an EGR cooler of the present application;

[0023] Figure 4 Another schematic diagram of a support structure of an EGR cooler of the present application;

[0024] Figure 5 A schematic diagram of an EGR cooler structure of the present application. DETAILED DESCRIPTION

[0025] In the present utility model, the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front”, “back”, “top”, “bottom”, “inside”, “outside”, “middle”, “vertical”, “horizontal”, “lateral” and “longitudinal” are based on the directions or positional relationships shown in the accompanying drawings and are only used to illustrate the relative positional relationships between the components or parts, and do not particularly limit the specific installation directions of the components or parts.

[0026] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0027] In addition, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] In addition, the structures, proportions, sizes, etc. drawn in the drawings in the present application are only used to match the contents disclosed in the specification for the technical personnel in this field to understand and read, and are not used to limit the restrictive conditions under which the present application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in the present application without affecting the effects and purposes that can be achieved by the present application.

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] The present application provides an EGR cooler support structure and an EGR cooler structure, which are used to reduce the possibility of the EGR cooler falling off and improve the stability of the EGR cooler. The specific implementation process of the present application is described as follows.

[0031] See also Figures 1 to 4 The first aspect of the present application provides a support structure for an EGR cooler, comprising:

[0032] A mounting plate 1, a support plate 2 and a clamp 4; one end of the mounting plate 1 is connected to the engine body, and the other end is connected to the support plate 2; extension columns 3 are respectively provided at both ends of the support plate 2, and the extension columns 3 extend vertically upward to both sides of the EGR cooler 6; the two ends of the clamp 4 are respectively connected to the extension columns 3, and an enclosing space is formed in the clamp 3, the size of the enclosing space matches the size of the EGR cooler 6, and the clamp 4 fixes the EGR cooler 6 through the enclosing space.

[0033] The support plate 2 is disposed transversely below the EGR cooler 6, and the extension columns 3 at both ends extend upward. The support plate 2 and the extension columns 3 cooperate to form a semi-enclosure of the EGR cooler 6, and the two ends of the clamp 4 are respectively connected to the ends of the two extension columns 3; an enclosing space is formed in the clamp 4, and the size of the enclosing space matches the size of the EGR cooler 6, that is, the EGR cooler 6 is located in the enclosing space, and the outer surface of the EGR cooler 6 contacts the inner surface of the clamp 4. The clamp 4 and the EGR cooler 6 are fitted and connected.

[0034] It should be noted that, according to the positional relationship between the EGR cooler 6 and the engine body, the lengths of the two extension columns 3 are inconsistent, and the clamp 4 is arranged obliquely between the two extension columns 3. Specifically, the length of the extension column 3 on the side away from the mounting plate 1 is longer, and the length of the extension column 3 on the side close to the mounting plate 1 is shorter.

[0035] In this embodiment, a mounting plate 1 is provided to be connected to the engine body, a support plate 2 is connected to the mounting plate, extension columns 3 extending vertically upward are provided at both ends of the support plate 2, a clamp 4 is provided between the two extension columns 3, and the EGR cooler 6 is fixed by the clamp 4, thereby realizing the connection between the EGR cooler 6 and the engine body. The stability of the connection between the EGR cooler 6 and the engine body can be improved by the strong support plate 2 and the mounting plate 1. In addition, due to the contact connection between the clamp 4 and the EGR cooler 6, compared with the prior art, the connection area between the EGR cooler 6 and the engine body is increased, thereby reducing the damage to the EFR cooler 6 and reducing the possibility of the EGR cooler 6 falling off.

[0036] Optionally, the clamp 4 includes an upper half hoop 41 and a lower half hoop 42 that are detachably connected, the middle position of the lower half hoop 42 is recessed downward and lower than the top of the extension column 3, and the middle position of the upper half hoop 41 protrudes upward and higher than the top of the extension column 3, the upper half hoop 41 and the lower half hoop 42 cooperate to form an enclosed space, and the upper half hoop 41 and the lower half hoop 42 have the same shape. In actual use, the lower half hoop 42 is sleeved under the EGR cooler 6, and the upper half hoop 41 is sleeved over the EGR cooler 6, the two ends of the upper half hoop 41 and the lower half hoop 42 are aligned, and connected to the extension column 3, thereby achieving a stable connection between the EGR cooler 6 and the extension column 3; when disassembling, the EGR cooler 6 can also be disassembled by disassembling the upper half hoop 41.

[0037] Optionally, both ends of the upper hoop 41 and the lower hoop 42 are provided with connecting holes, and bolts are passed through the connecting holes to connect with the extension column 3. Specifically, a downward internal thread groove is provided at the center of the end of the extension column 3. The upper hoop 41 and the lower hoop 42 are aligned, and then the bolt is passed downward through the connecting hole between the upper hoop 41 and the lower hoop 42, and downward to the internal thread groove on the extension column 3, and the bolt is tightened in the internal thread groove, thereby realizing a fixed connection between the clamp 4 and the extension column 3.

[0038] Optionally, in a feasible manner, the mounting plate 1 and the support plate 2 are integrally formed, and further, the support plate 2 and the extension column 3 are also integrally formed, that is, the mounting plate 1, the support plate 2 and the extension column 3 are a whole.

[0039] Optionally, two mounting holes are provided on the mounting plate 1, and the mounting plate 1 is connected to the bolts of the engine body through the mounting holes. Specifically, the bolts are passed through the mounting holes and connected to the engine body, so that the mounting plate 1 is fixedly connected to the engine body.

[0040] Optionally, reinforcing ribs 5 are arranged between the extension column 3 and the support plate 2. The extension column 3 and the support plate 2 are in a vertical state. Reinforcing ribs 5 are arranged at the angle between the extension column 3 and the support plate 2. The reinforcing ribs 5 are arranged in a triangular shape. By arranging the reinforcing ribs 5, the strength between the extension column 3 and the mounting plate 1 can be improved.

[0041] Optionally, the mounting plate 1 and the support plate 2 are arranged perpendicular to each other. Specifically, the mounting plate 1 is vertically connected to the engine body, and the support plate 2 is horizontally connected to the mounting plate 1. Reinforcing ribs are also arranged at the connection between the mounting plate 1 and the support plate 2. The reinforcing ribs are also arranged in a triangular shape. The strength between the support plate 2 and the mounting plate 1 is strengthened by the reinforcing ribs.

[0042] See also Figure 5 The second aspect of the present application provides an EGR cooler structure comprising: an EGR cooler and three Figures 1 to 4 Any one of the supporting structures, the EGR cooler 6 is connected to the engine body, one end of the three supporting structures is connected to the engine body, and the other end fixes the EGR cooler 6 through the clamp 4; specifically, each supporting structure is connected to the EGR cooler 6 through the clamp 4, and the supporting plate 2 of each supporting structure is connected to the engine body. By setting three supporting structures, the connection stability between the EGR cooler 6 and the engine body can be further improved.

[0043] Optionally, the support plate 2 and the mounting plate 1 in the support structure near the air intake end of the EGR cooler 6 are both conically arranged, that is, the volume of the connection between the mounting plate 1 and the support plate 2 is larger, the mounting plate 1 is conically arranged downward, and the support plate 2 is conically arranged laterally.

[0044] It should be noted that the above description of the disclosed embodiments enables professionals and technicians in the field to implement or use the present application. Various modifications to these embodiments will be apparent to professionals and technicians in the field, and the general principles defined herein can be implemented in other embodiments without departing from the scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A support structure for an EGR cooler, characterized in that: include: A mounting plate, a support plate and a clamp; one end of the mounting plate is connected to the engine body, and the other end is connected to the support plate; both ends of the support plate are respectively provided with extension columns, and the extension columns vertically extend upward to both sides of the EGR cooler; both ends of the clamp are respectively connected to the extension columns, and an enclosing space is formed in the clamp, the size of the enclosing space matches the size of the EGR cooler, and the clamp fixes the EGR cooler through the enclosing space; The clamp includes an upper half hoop and a lower half hoop that are detachably connected, the middle position of the lower half hoop is recessed downward and lower than the top of the extension column, the middle position of the upper half hoop protrudes upward and higher than the top of the extension column, and the upper half hoop and the lower half hoop cooperate to form the enclosed space.

2. The support structure according to claim 1, characterized in that: Both ends of the upper half hoop and the lower half hoop are provided with connection holes, and bolts pass through the connection holes to be connected with the extension column.

3. The support structure according to claim 1 or 2, characterized in that: The mounting plate and the supporting plate are integrally formed.

4. The support structure according to claim 1 or 2, characterized in that: The mounting plate is provided with two mounting holes, and the mounting plate is connected to the bolts of the engine body through the mounting holes.

5. The support structure according to claim 1 or 2, characterized in that: Reinforcing ribs are arranged between the extension column and the support plate.

6. The support structure according to claim 1 or 2, characterized in that: The mounting plate and the supporting plate are arranged perpendicular to each other.

7. An EGR cooler structure, characterized in that: It comprises an EGR cooler and three supporting structures as described in any one of claims 1 to 6, wherein the EGR cooler is connected to the engine body, one end of the three supporting structures is connected to the engine body, and the other end fixes the EGR cooler via a clamp.

8. The EGR cooler structure according to claim 7, characterized in that: The support plate and the mounting plate in the support structure close to the air inlet end of the EGR cooler are both arranged in a conical shape.

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