CN215408835U

CN215408835U - Exhaust silencing assembly for high-power engine

Info

Publication number: CN215408835U
Application number: CN202121455990.XU
Authority: CN
Inventors: 张俊; 牛渭辉; 易祥众; 钟盛; 潘芩; 王凤钊; 黄坚卫; 蔚兴建
Original assignee: Guangxi Yuchai Machinery Co Ltd
Current assignee: Guangxi Yuchai Machinery Co Ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2022-01-04
Anticipated expiration: 2031-06-29

Abstract

The utility model discloses an exhaust silencing assembly for a high-power engine, which comprises a silencer bracket, an exhaust pipe semicircular clamping piece and an L-shaped exhaust pipe supporting seat, wherein the silencer bracket is fixedly connected with the exhaust pipe semicircular clamping piece; the silencer bracket comprises a supporting plate, a plurality of silencer fixing holes are formed in the supporting plate, and an exhaust pipe relief opening is formed in the front end of the supporting plate; a supporting and fixing plate is vertically combined at the left lower side of the supporting plate, and a plurality of fixing holes are formed in the supporting and fixing plate; waist-shaped holes are formed in two sides of the exhaust pipe clearance opening, and the exhaust pipe semicircular clamping pieces are correspondingly distributed on one side of the exhaust pipe clearance opening, are clamped and pressed on the L-shaped exhaust pipe joint and are fastened to the waist-shaped holes through bolts; and the L-shaped exhaust pipe supporting seat is supported and fixed at the lower part of the L-shaped exhaust pipe joint. The utility model has the advantages of small occupied space for assembly, strong reliability, simple and convenient operation, accurate installation and the like.

Description

Exhaust silencing assembly for high-power engine

Technical Field

The utility model relates to the technical field of engine exhaust and a silencer, in particular to an exhaust silencing assembly for a high-power engine.

Background

The high-power engine is generally used in the fields of ships, mining, surveying and the like, the road condition is generally severe, and the bumping degree is generally large. The exhaust system is a part for treating the tail gas of the whole engine, and due to the particularity of the function, the position of the exhaust system installed on the engine is generally in a high position, and the installation mode is usually that a plurality of parts such as brackets are stacked on the engine. In the use process of the engine, the vibration of the engine is generally large, and in addition, the exhaust system is in a high position, so that the problems that the exhaust system frequently vibrates due to overlarge vibration, and installation matching parts are loosened and even fall off are caused. The problem is solved by a multi-angle reinforcing scheme, but the problem of reinforcement can be solved, the increase of weight not only increases cost, but also influences the installation of exhaust system parts, the installation efficiency is low, the operation is difficult, and the installation precision of the whole exhaust system cannot be guaranteed. Meanwhile, with the higher integration level and smaller space of the current engine, the required space utilization rate is higher. When an engine is designed, the small space utilization rate also provides challenges for the vibration resistance, firmness and reliability of exhaust system parts such as a bracket and the like, and how to meet the requirement of continuous compression of the space of the current engine and obviously improve the stability and reliability of the parts such as the bracket and the like is a great technical problem which is urgently needed to be solved by the current engine industry. Although some support structures are applied in the market at present, the stress distribution of the support is not reasonable enough, so that the requirements on vibration resistance, service life and reliability cannot be met. Meanwhile, during assembly, adjustment and installation are mostly carried out by means of experience of technicians, and the existing measuring tool is used for installation, so that the measuring tool cannot be normally used due to limited space, and meanwhile, the operation is complex, and the industrial assembly operation is not facilitated.

Disclosure of Invention

Aiming at the technical problems, the utility model provides the exhaust silencing component for the high-power engine, which has the advantages of reliable structure and scientific assembly.

In order to achieve the purpose, the utility model adopts the following technical scheme:

an exhaust silencing assembly for a high-power engine comprises a silencer bracket, an exhaust pipe semicircular clamping piece and an L-shaped exhaust pipe supporting seat; the silencer bracket comprises a supporting plate, a plurality of silencer fixing holes are formed in the supporting plate, and an exhaust pipe relief opening is formed in the front end of the supporting plate; a supporting and fixing plate is vertically combined at the left lower side of the supporting plate, and a plurality of fixing holes are formed in the supporting and fixing plate; waist-shaped holes are formed in two sides of the exhaust pipe clearance opening, and the exhaust pipe semicircular clamping pieces are correspondingly distributed on one side of the exhaust pipe clearance opening, are clamped and pressed on the L-shaped exhaust pipe joint and are fastened to the waist-shaped holes through bolts; and the L-shaped exhaust pipe supporting seat is supported and fixed at the lower part of the L-shaped exhaust pipe joint.

Furthermore, a reinforcing plate is arranged between the supporting and fixing plate and the supporting plate.

Furthermore, a supporting hole is formed in the right side of the supporting plate, a supporting column is arranged corresponding to the supporting hole, and the lower end of the supporting column is fixedly connected with the engine cylinder body.

The silencer mounting hole structure further comprises an accurate mounting tool, wherein the accurate mounting tool comprises a support attaching plate, a plurality of support fixing holes are formed in the support attaching plate, and the support fixing holes correspond to silencer mounting holes of a certain model; the middle part of the right side of the bracket attaching plate is provided with a U-shaped groove corresponding to the L-shaped exhaust pipe joint; an exhaust pipe joint sleeve cap is arranged corresponding to the U-shaped groove, the outer part of the exhaust pipe joint sleeve cap is of a rectangular structure, a round concave hole is formed in the lower part of the exhaust pipe joint sleeve cap corresponding to the L-shaped exhaust pipe joint, and a handle is arranged at the top of the exhaust pipe joint sleeve cap; the U-shaped groove is matched with the exhaust pipe yielding port, and the size of the U-shaped groove is larger than that of the outer portion of the exhaust pipe joint sleeve cap.

Furthermore, the rear side and the left side of the U-shaped groove are respectively provided with a verticality distance detector; the verticality distance detector comprises a connecting seat, and connecting bolts are distributed on the connecting seat; one side of the connecting seat is connected with a telescopic arm supporting rod, and a telescopic arm slot is formed in the telescopic arm supporting rod; springs are distributed in the telescopic arm slots, and telescopic arms are distributed in a telescopic manner; the spring extrudes the telescopic arm outwards, and fastening bolts are correspondingly distributed at the outer end of the telescopic arm slot and used for compressing and fixing the telescopic arm; the outer end of the telescopic arm is rotatably connected with a verticality detection block through a rotating shaft.

Furthermore, the verticality detection block is of a rectangular column structure, and a transparent angle ruler is further arranged on the inner side of the verticality detection block.

Furthermore, the telescopic arm is provided with scale lines corresponding to the transparent angle ruler, and meanwhile, the telescopic arm is also provided with a telescopic degree scale.

Compared with the prior art, the utility model has the beneficial effects that:

(1) the utility model forms an L-shaped structure by using the supporting plate and the supporting fixing plate, greatly saves the space occupied by the bracket for the engine, realizes stable support by the supporting fixing plate and the supporting column, is combined with the exhaust pipe semicircular clamping piece to clamp and press the exhaust pipe semicircular clamping piece to the L-shaped exhaust pipe connector, and is used as a vibration-damping supporting point at the other end, namely, a triangular supporting structure is formed by adopting a surface plus point, thereby greatly reducing the space occupancy rate, obviously improving the stability and the supporting rigidity of the whole supporting structure, pressing the supporting point of the exhaust pipe semicircular clamping piece to the L-shaped exhaust pipe connector, effectively reducing the vibration of the whole silencer bracket and the L-shaped exhaust pipe connector after the silencer is installed, and improving the reliability.

(2) For solving the installation precision problem, this accurate mounting tool is used for simulating the assembly of silencer installation body through being equipped with support rigging board, then through being equipped with exhaust pipe joint sleeve cap and straightness distance detector that hangs down in coordination, the realization is to the accurate counterpoint of exhaust pipe joint and silencer support and silencer, it is too big to prevent to appear local stress because the installation is inaccurate after traditional installation tightening torque, along with long-term mining, survey the jolt operation of road conditions such as etc. and appear the bolt not hard up, vibrate big or the partial shell tearing phenomenon. When the silencer is assembled, the verticality and the distance between the silencer support, the silencer and the exhaust pipe joint (circular pipe) can be measured quickly, efficiently and visually, the exhaust pipe joint is convenient to compress and install in combination with the exhaust pipe semicircular clamping piece, the special assembly for the silencer support and the exhaust pipe semicircular clamping piece can eliminate local stress after assembly, is low in operation vibration, is not easy to cause the traditional problems of local shell tearing and the like, and the use effect is good.

Drawings

FIG. 1 is a schematic view of the outboard angle of the muffler bracket of the present invention;

FIG. 2 is a schematic view of the inside angle of the muffler bracket of the present invention;

FIG. 3 is a schematic view of the muffler bracket of the present invention after assembly;

FIG. 4 is a schematic view of the muffler bracket, exhaust pipe semicircular clamping member and L-shaped exhaust pipe support base of the present invention after assembly;

FIG. 5 is a schematic diagram of a precision installation tool of the present invention;

FIG. 6 is a perspective view of a vented pipe coupling boss cap of the present invention;

FIG. 7 is a perspective view of the perpendicularity distance detector of the present invention.

Detailed Description

As shown in fig. 1 to 7, an exhaust silencing assembly for a high-power engine comprises a silencer bracket, an exhaust pipe semicircular clamping piece 10 and an L-shaped exhaust pipe supporting seat 11; the muffler support comprises a support plate 6, a plurality of muffler fixing holes 6-1 are formed in the support plate 6, and an exhaust pipe relief opening 7 is formed in the front end of the support plate; and a supporting and fixing plate 8 is vertically combined at the lower left side of the supporting plate 6, and a reinforcing plate 9 is further arranged between the supporting and fixing plate and the supporting plate. And the right side of the supporting plate is also provided with supporting holes 6-3, supporting columns 13 are arranged corresponding to the supporting holes, and the lower ends of the supporting columns 13 are fixedly connected with the engine cylinder body. A plurality of fixing holes 8-1 are formed in the supporting and fixing plate 8; waist-shaped holes 6-2 are formed in two sides of the exhaust pipe relief opening 7, the exhaust pipe semicircular clamping pieces 10 are correspondingly distributed on one side of the exhaust pipe relief opening 7 and clamp and press the L-shaped exhaust pipe joint 12 (as shown in fig. 4, the exhaust pipe semicircular clamping pieces 10 are distributed on the lower side of the supporting plate 6 to clamp and press the L-shaped exhaust pipe joint 12, namely the L-shaped exhaust pipe joint 12 is used as a supporting point), and the exhaust pipe semicircular clamping pieces are fastened to the waist-shaped holes through bolts; the L-shaped exhaust pipe support seat 11 is supported and fixed at the lower part of the L-shaped exhaust pipe joint 12 to support the L-shaped exhaust pipe joint 12.

In order to provide accurate installation, the silencer mounting tool further comprises an accurate installation tool, the accurate installation tool comprises a support attaching plate 1, a plurality of support fixing holes 1-2 are further formed in the support attaching plate 1, and the support fixing holes 1-2 correspond to silencer mounting holes of a certain model; the middle part of the right side of the bracket attaching plate 1 is provided with a U-shaped groove 1-1 corresponding to the L-shaped exhaust pipe joint 12; the U-shaped groove is matched with the exhaust pipe relief opening, an exhaust pipe joint sleeve cap 5 is further arranged corresponding to the U-shaped groove 1-1, the outer portion of the exhaust pipe joint sleeve cap 5 is of a rectangular structure, a round concave hole 5-1 is formed in the lower portion of the exhaust pipe joint sleeve cap corresponding to the L-shaped exhaust pipe joint, and a lifting handle 5-2 is further arranged at the top of the exhaust pipe joint sleeve cap; the size of the U-shaped groove 1-1 is larger than the size of the outer part of the exhaust pipe joint sleeve cap 5.

The rear side and the left side of the U-shaped groove 1-1 are respectively provided with a verticality distance detector 2 and a verticality distance detector 3; the verticality distance detector 2 and the verticality distance detector 3 respectively comprise a connecting seat 3-1, and connecting bolts 3-2 are distributed on the connecting seat 3-1; one side of the connecting seat 3-1 is connected with a telescopic arm support rod 3-3, and a telescopic arm slot 3-4 is formed in the telescopic arm support rod 3-3; springs 3-5 and telescopic arms 3-9 are distributed in the telescopic arm slots 3-4 in a telescopic mode; the springs 3-5 extrude the telescopic arms 3-9 outwards, the outer ends of the telescopic arm slots 3-4 are correspondingly distributed with tightening bolts 3-6, and the tightening bolts 3-6 are used for compressing and fixing the telescopic arms 3-9; the outer end of the telescopic arm 3-9 is rotatably connected with a verticality detection block 3-11 through a rotating shaft 3-10; the verticality detection block 3-11 is of a rectangular column structure, and a transparent angle ruler 3-12 is further arranged on the inner side of the verticality detection block; the telescopic arm 3-9 is provided with a scale line 3-8 corresponding to the transparent angle ruler 3-12, and the telescopic arm 3-9 is also provided with a telescopic degree scale 3-7.

When the tool is used for accurately mounting the silencer bracket and the silencer, the operation method comprises the following steps:

(1) pre-installing a muffler bracket on an engine body, then selecting corresponding bracket fixing holes 1-2 to fasten the bracket attaching plate 1 on the muffler bracket through fastening bolts 4, then distributing L-shaped exhaust pipe joints in the U-shaped grooves 1-1, then sleeving circular concave holes 5-1 of an exhaust pipe joint sleeve cap 5 on the L-shaped exhaust pipe joints, and simultaneously enabling a rectangular plane outside the exhaust pipe joint sleeve cap 5 to be over against the perpendicularity distance detector 2 and the perpendicularity distance detector 3;

(2) then detecting and judging the front-back left-right relative verticality between the muffler bracket and the exhaust pipe joint; screwing off tightening bolts 3-6 of the verticality distance detector 2 and the verticality distance detector 3, enabling telescopic arms 3-9 to extend out under the action of spring force, then extruding and tightly attaching side faces of verticality detection blocks 3-11 to a rectangular plane of the exhaust pipe joint sleeve cap 5, if the exhaust pipe joint is not vertical relatively, representing the inclination of the exhaust pipe joint sleeve cap 5, enabling the verticality detection blocks 3-11 to rotate relative to the telescopic arms 3-9, and visually seeing the inclination and the inclination degree of the side through a scale line 3-8 and a transparent angle ruler 3-12, and further correspondingly adjusting the L-shaped exhaust pipe joint until the front, back, left and right directions are vertical;

(3) whether the distance between the silencer support and the L-shaped exhaust pipe joint is accurate or not is judged through the respective expansion degree scales 3-7 on the verticality distance detector 2 and the verticality distance detector 3, and if the distance is larger than or smaller than the standard scale of the expansion degree scale 3-7, the front-back left-right linear distance of the silencer support or the exhaust pipe joint is correspondingly adjusted, so that accurate adjustment and installation are realized. (4) And finally, tightening the related bolts and tightly pressing and fixing the exhaust pipe semicircular clamping piece 10 to finish accurate installation.

Claims

1. The utility model provides a high-power exhaust noise elimination subassembly for engine which characterized in that: the muffler comprises a muffler bracket, an exhaust pipe semicircular clamping piece and an L-shaped exhaust pipe supporting seat; the silencer bracket comprises a supporting plate, a plurality of silencer fixing holes are formed in the supporting plate, and an exhaust pipe relief opening is formed in the front end of the supporting plate; a supporting and fixing plate is vertically combined at the left lower side of the supporting plate, and a plurality of fixing holes are formed in the supporting and fixing plate; waist-shaped holes are formed in two sides of the exhaust pipe clearance opening, and the exhaust pipe semicircular clamping pieces are correspondingly distributed on one side of the exhaust pipe clearance opening, are clamped and pressed on the L-shaped exhaust pipe joint and are fastened to the waist-shaped holes through bolts; and the L-shaped exhaust pipe supporting seat is supported and fixed at the lower part of the L-shaped exhaust pipe joint.

2. The exhaust muffler assembly for a high-power engine according to claim 1, wherein: and a reinforcing plate is also arranged between the supporting and fixing plate and the supporting plate.

3. The exhaust muffler assembly for a high-power engine according to claim 1, wherein: and a support hole is further formed in the right side of the support plate, a support column is arranged corresponding to the support hole, and the lower end of the support column is fixedly connected with the engine cylinder body.

4. The exhaust muffler assembly for a high-power engine according to claim 1, wherein: the silencer mounting hole installing tool comprises a bracket attaching plate, wherein a plurality of bracket fixing holes are formed in the bracket attaching plate and correspond to silencer mounting holes of a certain model; the middle part of the right side of the bracket attaching plate is provided with a U-shaped groove corresponding to the L-shaped exhaust pipe joint; an exhaust pipe joint sleeve cap is arranged corresponding to the U-shaped groove, the outer part of the exhaust pipe joint sleeve cap is of a rectangular structure, a round concave hole is formed in the lower part of the exhaust pipe joint sleeve cap corresponding to the L-shaped exhaust pipe joint, and a handle is arranged at the top of the exhaust pipe joint sleeve cap; the U-shaped groove is matched with the exhaust pipe yielding port, and the size of the U-shaped groove is larger than that of the outer portion of the exhaust pipe joint sleeve cap.

5. The exhaust muffler assembly for a high-power engine according to claim 4, wherein: the rear side and the left side of the U-shaped groove are respectively provided with a verticality distance detector; the verticality distance detector comprises a connecting seat, and connecting bolts are distributed on the connecting seat; one side of the connecting seat is connected with a telescopic arm supporting rod, and a telescopic arm slot is formed in the telescopic arm supporting rod; springs are distributed in the telescopic arm slots, and telescopic arms are distributed in a telescopic manner; the spring extrudes the telescopic arm outwards, and fastening bolts are correspondingly distributed at the outer end of the telescopic arm slot and used for compressing and fixing the telescopic arm; the outer end of the telescopic arm is rotatably connected with a verticality detection block through a rotating shaft.

6. The exhaust muffler assembly for a high-power engine according to claim 5, wherein: the verticality detection block is of a rectangular column structure, and a transparent angle ruler is further arranged on the inner side of the verticality detection block.

7. The exhaust muffler assembly for a high-power engine according to claim 6, wherein: the telescopic arm is provided with scale lines corresponding to the transparent angle ruler, and meanwhile, the telescopic arm is also provided with a flexibility scale.