CN216811862U

CN216811862U - Silencer mounting structure for engineering machinery

Info

Publication number: CN216811862U
Application number: CN202220664245.4U
Authority: CN
Inventors: 刘传强; 臧传斌; 郭江昆; 韩家威; 刘虹
Original assignee: LOVOL Engineering Machinery Group Co Ltd
Current assignee: Lovol Heavy Industry Group Co ltd
Priority date: 2022-03-25
Filing date: 2022-03-25
Publication date: 2022-06-24
Anticipated expiration: 2032-03-25

Abstract

The utility model relates to the field of engineering machinery, in particular to a muffler mounting structure for engineering machinery, which comprises a base mounted at the lower part of a muffler, and further comprises a support plate mounted at the upper part of an engine, wherein the support plate is fixedly connected with the base, the lower part of the support plate is provided with a connecting assembly fixedly mounted at the side part of the engine, the connecting assembly comprises a side plate, the side plate extends downwards, the side surface of the side plate is attached to the side part of the engine, the connecting assembly further comprises a connecting column, the upper section of the connecting column is hexagonal prism-shaped, the upper end of the connecting column is connected with the support plate, the lower part of the connecting column is provided with threads, the engine is correspondingly provided with threaded holes, and the threaded part at the lower part of the connecting column is screwed in the threaded holes. The muffler can keep the same frequency vibration as the engine body by adopting the mounting structure, thereby avoiding resonance generation and part damage.

Description

Silencer mounting structure for engineering machinery

Technical Field

The utility model relates to the field of engineering machinery, in particular to a silencer mounting structure for engineering machinery.

Background

At present, a silencer of a loader is arranged at the upper part of an engine, referring to fig. 5, a fixed support is arranged at the lower part of the silencer, one end of the fixed support is arranged on an exhaust manifold 8, the other end of the fixed support is arranged at the upper part of an air inlet 9 of the engine, and the fixed support is easily damaged due to resonance because the vibration frequencies of two fixed parts of the fixed support are different and the vibration frequency of exhaust is changed.

The phenomenon of the reason is that the existing silencer has high mass center and poor reliability, the faults mostly occur between 500 and 1000 hours of the whole automobile, and are early faults which mainly appear in the cracking of a silencer cylinder body and the problems of abnormal sound and the like caused by the cracking of a welding line in the cylinder body. In addition, the machining precision is difficult to control due to the complex structure of the fixed support, and the phenomena of fracture, weld joint cracking, fracture of an engine air inlet bolt and the like of a base metal of the fixed support are easy to occur and need to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a muffler mounting structure for engineering machinery, which is reliable in structure and avoids a muffler mounting frame from being damaged due to resonance.

In order to achieve the aim, the utility model discloses a muffler mounting structure for engineering machinery, which is structurally characterized in that: the silencer comprises a base arranged on the lower portion of a silencer body and a supporting plate arranged on the upper portion of an engine, wherein the supporting plate is fixedly connected with the base, and a connecting assembly fixedly arranged on the side portion of the engine is arranged on the lower portion of the supporting plate.

After adopting above-mentioned structure, utilize base and backup pad to install the silencer on the engine organism to make silencer and installation component keep with the vibration of engine organism co-frequency, avoided resonance to produce, and can also reduce silencer installation barycenter, this scheme can not cause the damage to the engine air inlet when the extreme condition takes place to become invalid, avoids influencing engine power performance, and the normal operation of equipment.

With regard to the specific construction of the connection assembly, the connection assembly includes a side plate that extends downwardly, with the side of the side plate abutting the side of the engine.

Preferably, the lateral part of engine is equipped with the screw hole corresponding with the curb plate, is equipped with the bolt that passes the curb plate and screw up on the screw hole on the curb plate, and the curb plate is equipped with two. The support plate is connected with the engine body by the connecting assembly, so that the connecting assembly keeps the vibration with the same frequency as the engine body, and resonance is avoided.

Preferably, the side plate is provided with an avoiding hole for avoiding the connecting pipeline on the engine. The side plates are prevented from influencing the installation of the connecting pipelines on the engine.

In addition, the connecting component further comprises a connecting column, the upper section of the connecting column is hexagonal prism-shaped, the upper end of the connecting column is connected with the supporting plate, the lower portion of the connecting column is provided with threads, the engine is correspondingly provided with a threaded hole, and the threaded portion of the lower portion of the connecting column is screwed in the threaded hole. The upper part of the connecting column is hexagonal prism-shaped, so that a wrench can be conveniently screwed, and the thread part is conveniently connected with an engine.

Preferably, the upper portion of the connecting column is provided with a threaded hole, the supporting plate is provided with a plurality of bolts which penetrate through the supporting plate and are screwed in the threaded hole, and the connecting columns are distributed at intervals. The connecting column is convenient to be connected with the supporting plate.

Preferably, the muffler is located at one end of the engine, one side plate is located at the end face of the engine, and the connecting column and the other side plate are located on two side faces of the engine. The installation strength of the silencer is increased.

Preferably, a plurality of support columns of backup pad upper portion fixedly connected with, support column upper end top lean on the downside of base, and support column upper portion is equipped with the screw hole, installs on the base and passes the bolt that the base was screwed up in the screw hole.

Preferably, the supporting column is provided with a plurality of supporting columns which are distributed at intervals.

In conclusion, the beneficial effects of the utility model are as follows: utilize base and backup pad to install the silencer on the engine organism to make silencer and installation component keep with the vibration of engine organism co-frequency, avoided resonance to produce, and can also reduce silencer installation barycenter, this scheme can not cause the damage to the engine air inlet when the extreme condition takes place to become invalid, avoids influencing engine power performance, and the normal operation of equipment. The connecting assembly comprises a side plate and a connecting column, the side plate and the connecting column are connected and fixed through a longer side plate, and the upper space of the engine body can be effectively utilized.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a connecting assembly;

FIG. 3 is a schematic structural view of a connecting column;

FIG. 4 is a schematic view of the construction of the support plate and the connecting assembly;

fig. 5 is a schematic structural diagram of the prior art.

In the figure: the muffler comprises a muffler 1, an engine 2, a base 3, a supporting plate 4, a side plate 5, a connecting column 6, a supporting column 7, an exhaust manifold 8, an engine inlet 9, an avoidance hole 10 and threads 11.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model, but are not intended to limit the scope of the utility model.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable 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 meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The following is a description of preferred embodiments of the present invention with reference to the accompanying drawings.

The utility model provides a 1 mounting structure of silencer for engineering machine tool, is including installing base 3 in 1 lower part of silencer, still including installing backup pad 4 on 2 upper portions of engine, backup pad 4 and 3 fixed connection of base, and 4 lower parts of backup pad are equipped with the coupling assembling of fixed mounting in 2 lateral parts of engine. Referring to the attached drawing 1, after the structure is adopted, the silencer 1 is installed on the engine 2 body through the base 3 and the supporting plate 4, so that the silencer 1 and the installation component of the silencer keep the vibration with the same frequency as the engine 2 body, resonance is avoided, the installation center of mass of the silencer 1 can be reduced, and when the silencer is in failure in extreme conditions, the air inlet of the engine 2 cannot be damaged, and the influence on the performance of the engine 2 and the normal operation of equipment are avoided.

Referring to fig. 2, regarding the specific structure of the connecting assembly, the connecting assembly includes a side plate 5, the side plate 5 extends downward, and the side of the side plate 5 abuts against the side of the engine 2. The side part of the engine 2 is provided with a thread 11 hole corresponding to the side plate 5, the side plate 5 is provided with a bolt which penetrates through the side plate 5 and is screwed on the thread 11 hole, and the number of the side plates 5 is two. The support plate 4 is connected with the engine 2 body by using the connecting component, so that the connecting component keeps the vibration with the same frequency as the engine 2 body, and the resonance is avoided.

Referring to fig. 2, the side plate 5 is provided with an avoidance hole 10 for avoiding a connecting pipeline on the engine 2. The side plate 5 is prevented from affecting the installation of the connecting pipeline on the engine 2.

Referring to the attached

drawings

2 and 4, the connecting assembly further comprises a connecting column 6, the upper section of the connecting column 6 is hexagonal prism-shaped, the upper end of the connecting column 6 is connected with the supporting plate 4, the lower part of the connecting column 6 is provided with a thread 11, the engine 2 is correspondingly provided with a thread 11 hole, and the thread 11 part at the lower part of the connecting column 6 is screwed in the thread 11 hole. The upper part of the connecting column 6 is hexagonal prism-shaped, so that a wrench can be conveniently screwed, and the thread 11 part is conveniently connected with the engine 2. The upper portion of the connecting column 6 is provided with a thread 11 hole, the supporting plate 4 is provided with a bolt which penetrates through the supporting plate 4 and is screwed in the thread 11 hole, the connecting columns 6 are provided with a plurality of connecting columns 6 which are distributed at intervals. So that the connecting column 6 is connected with the supporting plate 4.

Referring to fig. 1, the muffler 1 is located at one end of the engine 2, one side plate 5 is located at an end surface of the engine 2, and the connecting column 6 and the other side plate 5 are located at both side surfaces of the engine 2. It is advantageous to increase the mounting strength of the muffler 1.

Referring to the attached

drawings

2 and 4, the upper portion of the supporting plate 4 is fixedly connected with a plurality of supporting columns 7, the upper ends of the supporting columns 7 abut against the lower side face of the base 3, the upper portions of the supporting columns 7 are provided with holes with threads 11, and bolts penetrating through the base 3 and screwed in the holes with the threads 11 are mounted on the base 3. The support columns 7 are provided with a plurality of support columns 7 which are distributed at intervals.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a silencer mounting structure for engineering machine tool, its characterized in that is including installing base (3) in silencer (1) lower part, still including installing backup pad (4) on engine (2) upper portion, backup pad (4) and base (3) fixed connection, backup pad (4) lower part is equipped with the coupling assembling of fixed mounting in engine (2) lateral part.

2. The muffler mounting structure for construction machinery according to claim 1, wherein the connecting member includes a side plate (5), the side plate (5) extending downward, and a side surface of the side plate (5) abuts against a side portion of the engine (2).

3. The muffler mounting structure for construction machinery according to claim 2, wherein the side of the engine (2) is provided with a threaded hole corresponding to the side plate (5), the side plate (5) is provided with a bolt that is screwed into the threaded hole through the side plate (5), and two side plates (5) are provided.

4. The muffler mounting structure for construction machinery according to claim 2, wherein the side plate (5) is provided with an avoidance hole (10) for avoiding a connecting pipe on the engine (2).

5. The muffler mounting structure for construction machinery according to claim 2, wherein the connecting member further comprises a connecting post (6), an upper section of the connecting post (6) is hexagonal prism-shaped, an upper end of the connecting post (6) is connected to the support plate (4), a lower portion of the connecting post (6) is provided with a thread (11), the engine (2) is correspondingly provided with a threaded hole, and a part of the thread (11) at the lower portion of the connecting post (6) is screwed into the threaded hole.

6. The muffler mounting structure for construction machinery according to claim 5, wherein the coupling post (6) is provided at an upper portion thereof with a screw hole, the support plate (4) is provided with a bolt which is screwed into the screw hole through the support plate (4), and the coupling post (6) is provided in plurality, and the plurality of coupling posts (6) are spaced apart from each other.

7. A muffler mounting structure for construction machinery according to claim 5, wherein the muffler (1) is located at one of the ends of the engine (2), one of the side plates (5) is located at the end surface of the engine (2), and the connecting column (6) and the other side plate (5) are located at both side surfaces of the engine (2).

8. The muffler mounting structure for construction machinery according to claim 5, wherein a plurality of support columns (7) are fixedly connected to an upper portion of the support plate (4), upper ends of the support columns (7) abut against a lower side surface of the base (3), a threaded hole is formed in an upper portion of each support column (7), and a bolt which penetrates through the base (3) and is screwed into the threaded hole is installed on the base (3).

9. The muffler mounting structure for construction machinery according to claim 8, wherein the support column (7) is provided in plurality, and the plurality of support columns (7) are arranged at intervals.