CN205714349U

CN205714349U - A kind of muffler strengthens structure

Info

Publication number: CN205714349U
Application number: CN201620479613.2U
Authority: CN
Inventors: 章志明
Original assignee: Zhejiang Chuangge Technology Co Ltd
Current assignee: Zhejiang Chuangge Technology Co Ltd
Priority date: 2016-05-23
Filing date: 2016-05-23
Publication date: 2016-11-23
Anticipated expiration: 2026-05-23

Abstract

The utility model discloses a kind of muffler and strengthen structure, including cylinder, described cylinder connects air inlet pipe in axial first side, connect escape pipe in axial second side, described air inlet pipe is axially axially all axially vertical with cylinder with escape pipe, and air inlet pipe is axially axially parallel to each other with escape pipe, described air inlet pipe the inner is fixed with cylinder, and described escape pipe the inner is fixed with cylinder.On the one hand inlet, outlet length of tube is increased by the technical solution adopted in the utility model, runs through cylinder upper and lower, and backplate is strengthened in welding in inlet, outlet position, thus strengthens silencer intensity, extends the service life of part.Still further aspect, by arranging the first U-shaped gripper shoe and the second U-shaped gripper shoe, adds the bottom support area of silencer, strengthens support strength, the amplitude to muffler impact for the balanced engine vibration, increases the service life.

Description

A kind of muffler strengthens structure

Technical field

The utility model relates to auto parts and components, is specifically related to muffler.

Background technology

The noise producing during diesel engine work is mainly made up of burning, mechanical noise and aerodynamic noise, wherein with sky Exhaust noise in aerodynamic noise is the most prominent, becomes the principal element of pollution from environmental noise.Reduce having most of exhaust noise The method of effect is to use muffler.And relatively big owing to vibrating when diesel engine works, silencer intensity deficiency can cause it to make Too short with the life-span.

Utility model content

Technical problem to be solved in the utility model is just to provide a kind of muffler and strengthens structure, strengthens muffler Intensity simultaneously increases the service life.

For solving above-mentioned technical problem, the utility model adopts the following technical scheme that a kind of muffler strengthens structure, Including cylinder, described cylinder connects air inlet pipe in axial first side, connects escape pipe in axial second side, and described air inlet pipe is axial Axially all axially vertical with cylinder with escape pipe, and air inlet pipe is axially axially parallel to each other with escape pipe, described air inlet pipe is inner Fixing with cylinder, described escape pipe the inner is fixed with cylinder.

As preferably, the corresponding air inlet pipe of the outer tube wall of described cylinder is welded with air inlet pipe and strengthens backplate.

As preferably, the corresponding escape pipe of the outer tube wall of described cylinder is welded with escape pipe and strengthens backplate.

As preferably, the bottom side barrel of described cylinder is welded with the first U-shaped gripper shoe in axial first side, axial second Side is welded with the second U-shaped gripper shoe.

As preferably, the both sides side plate line of centres of described first U-shaped gripper shoe is axially in parallel with cylinder, described 2nd U The both sides side plate line of centres of type gripper shoe is axially vertical with cylinder.

On the one hand inlet, outlet length of tube is increased by the technical solution adopted in the utility model, runs through cylinder upper and lower, and Backplate is strengthened in the welding of inlet, outlet position, thus strengthens silencer intensity, extends the service life of part.Still further aspect, passes through First U-shaped gripper shoe and the second U-shaped gripper shoe are set, add the bottom support area of silencer, strengthen support strength, flat The amplitude that muffler is impacted by weighing apparatus engine luggine, increases the service life.

Brief description

With detailed description of the invention, the utility model is further described below in conjunction with the accompanying drawings:

Fig. 1 is internal structure schematic diagram of the present utility model；

Fig. 2 is B-B direction view in Fig. 1；

Fig. 3 is for being vented at muffler internal flow schematic diagram；

Fig. 4 is enlarged drawing at I in Fig. 1；

Fig. 5 is contour structures schematic diagram of the present utility model；

Fig. 6 is the side structure schematic diagram of Fig. 5；

Fig. 7 is C direction view in Fig. 6；

Fig. 8 is D direction view in Fig. 6；

Fig. 9 is double-layer barrel rolling and processing schematic diagram.

Detailed description of the invention

As depicted in figs. 1 and 2, a kind of muffler, including muffler body 1, muffler body 1 include cylinder 10 and The cover 11 at the axial two ends of closed cylinder, described cylinder 10 connects air inlet pipe 2 in axial first side, connects in axial second side Tracheae 3, air inlet pipe 2 and escape pipe 3 are arranged with perforation inside cylinder 10.Cylinder lumen depends on from the first side to the second side vertically It secondary is provided with at least one air-flow blocker unit.

Wherein, described air-flow blocker unit includes the first supporting clapboard, the second supporting clapboard and is formed between the two Intermediate cavity, the perforated pipe of a two ends connection passes through from the first supporting clapboard and the second supporting clapboard center, described first Support diaphragm rings passes through around perforated pipe the communicating pipe of at least two ends connection.Air-flow divides two-way to advance, a road perforated pipe, wears Hole pipe self has certain erasure effect, additionally leads up to communicating pipe, returns, can reduce air-flow after running into the second gripper shoe Flow velocity, air-flow can be intercepted by multiple air-flow blocker unit successively, reduces air-flow velocity and exhaust back pressure, to reach simultaneously Erasure effect.

In order to simplify muffler structure, in the present embodiment, it is provided only with an air-flow blocker unit, as it is shown in figure 1, its In, forming the first chamber 14 between the first supporting clapboard 12 and the cover 11 of the first side, the cover 11 and second of the second side supports Forming the second chamber 16 between dividing plate 13, perforated pipe 18 two ends are respectively communicated with the first chamber 14 and the second chamber 16, communicating pipe 17 Two ends are respectively communicated with the first chamber 14 and intermediate cavity 15.Specific to the present embodiment, as in figure 2 it is shown, described communicating pipe 17 is along wearing The outer circumference of hole pipe 18 is uniform arranges four, and the diameter of perforated pipe is more than communicating pipe diameter.

Pass through after 4 diameter Ф 40mm communicating pipes 17 as it is shown on figure 3, enter the air inlet of the first chamber 14 by air inlet pipe 2, Air-flow returns at the second supporting clapboard 13, reduces air-flow velocity simultaneously, then by the perforated pipe 18 of Ф 86mm diameter, further Air-flow is carried out intercept the effect reaching noise reduction.

Wherein, the perforation on perforated pipe 18 can effectively eliminate sound HFS；And on the first supporting clapboard 12 Four φ 40mm communicating pipes 17 due to the unexpected change of both sides sectional area, sound is reflected, thus reduces passing through of sound, This mainly reduces the low frequency part of sound, above-mentioned structure design, makes low frequency can play noise elimination in the whole interval of high frequency Effect.

Certainly, the use according to muffler requires, can set up a number of air-flow blocker unit, to improve noise reduction effect Really, meet use to require.

As it is shown in figure 1, described air inlet pipe is axially axially all axially vertical with cylinder with escape pipe, and air inlet pipe axial with go out Tracheae is axially parallel to each other, and the inner of described air inlet pipe and cylinder are fixed, and the inner of described escape pipe and cylinder are fixed, meanwhile, As it is shown in figure 5, the corresponding air inlet pipe of the outer tube wall of described cylinder is welded with air inlet pipe and strengthens backplate 22.The outer tube wall pair of described cylinder Answer escape pipe to be welded with escape pipe and strengthen backplate 31.By above-mentioned design, strengthen silencer bulk strength, extend the use of part Life-span.

As shown in Fig. 5 to Fig. 8, the bottom side barrel of described cylinder 10 is welded with the first U-shaped gripper shoe 5 in axial first side, It is welded with the second U-shaped gripper shoe 4 in axial second side.In prior art, by the second U-shaped gripper shoe 4, muffler is fixed.As Shown in Fig. 6, the both sides side plate of the second U-shaped gripper shoe 4 opens to cylinder radially opposite sides, and solid with the bottom side barrel welding of cylinder Fixed, it as it is shown in fig. 7, the second U-shaped gripper shoe 4 base plate corner is provided with fixing hole, is fixed by fixing hole.And first U-shaped Side plate substantially axially vertical with cylinder and with cylinder bottom side barrel in fagging 5 both sides is welded and fixed, the first U-shaped gripper shoe 5 simultaneously Base plate on be also provided with fixing hole and be fixed.Owing to the second U-shaped gripper shoe is as main support face, therefore the first U-shaped support Plate both sides side sheet room distance is less than the second U-shaped gripper shoe both sides side sheet room distance, on the whole, and the first U-shaped gripper shoe bottom surface face Long-pending less than the second U-shaped gripper shoe base area.Owing to arranging the first U-shaped gripper shoe 5 and the second U-shaped gripper shoe 4 simultaneously, add The bottom support area of silencer, strengthens support strength, the amplitude to muffler impact for the balanced engine vibration, extends and use Life-span.

As it is shown in figure 5, the entrance point of air inlet pipe 2 is provided with inlet flange 21.As shown in Figure 8, inlet flange 21 is substantially in just Square, naturally it is also possible to rounded or other shapes, foursquare four edges are provided with for consolidating of being bolted Determining hole, this inlet flange 21 is tightly connected with exhaust outlet.

As it is shown on figure 3, described cylinder 10 includes outer cylinder body 104 and inner barrel 101, fill out between described outer cylinder body and inner barrel It is filled with sound-absorbing material 103 and heat-barrier material 102.Described sound-absorbing material is near outer cylinder body, and uses glass fibre parcel 4mm thickness Sound-absorbing material.Described heat-barrier material is near inner barrel, and uses ceramic fibre parcel 2mm thickness heat-barrier material.

Use double-layer barrel structure, the lifting surface area of silencer can be increased, the fatigue effect that disperse vibration is brought, prevent The whole cylinder of silencer ruptures.Fill sound-absorbing material, heat-barrier material between double-layer barrel, while absorbing engine noise The baking to exterior part for the high temperature within silencer for the isolation.

Wherein, inner barrel 101 uses aludip to process, and it is abound with perforation, and thickness is 1.2mm, and outer cylinder body is for increasing Adding the intensity of whole cylinder, it uses 1.5mm aludip to process.

Owing to double-layer barrel structure is different from general silencer processing, reprocessing process has the integral thickness due to cylinder Add more than 1/3, therefore develop bilateral edge knurling process, solve double shell and roll the critical technological point of sealing simultaneously.Such as Fig. 9 institute Showing, corresponding double-layer barrel two ends respectively arrange the roller group being made up of the first roller A and the second roller B, by the first roller 1/2 After circle, the second roller follows up simultaneously and is packaged double-layer barrel, the benefit simultaneously encapsulating, and is to prevent the packing material of inside Extend the problem leaking outside outward under the compressing of external force.

Claims

1. muffler strengthens a structure, including cylinder, described cylinder connects air inlet pipe in axial first side, axial the Two sides connect escape pipe, it is characterised in that: described air inlet pipe is axially axially all axially vertical with cylinder with escape pipe, and air inlet pipe Axially axially being parallel to each other with escape pipe, the inner of described air inlet pipe and cylinder are fixed, and the inner of described escape pipe is solid with cylinder Fixed.

2. a kind of muffler according to claim 1 strengthens structure, it is characterised in that: the outer tube wall pair of described cylinder Answer air inlet pipe to be welded with air inlet pipe and strengthen backplate.

3. a kind of muffler according to claim 1 strengthens structure, it is characterised in that: the outer tube wall pair of described cylinder Answer escape pipe to be welded with escape pipe and strengthen backplate.

4. a kind of muffler according to claims 1 to 3 any one strengthens structure, it is characterised in that: described cylinder The bottom side barrel of body is welded with the first U-shaped gripper shoe in axial first side, is welded with the second U-shaped gripper shoe in axial second side.

5. a kind of muffler according to claim 4 strengthens structure, it is characterised in that: described first U-shaped gripper shoe The both sides side plate line of centres axially in parallel with cylinder, the both sides side plate line of centres of described second U-shaped gripper shoe and drum shaft To vertically.