CN112443383B

CN112443383B - Silencer convenient to disassemble, assemble and maintain

Info

Publication number: CN112443383B
Application number: CN202011432233.0A
Authority: CN
Inventors: 沈法鹏; 孙秋云; 温红; 姚传峰; 王玉英
Original assignee: Shandong Transport Vocational College
Current assignee: Shandong Transport Vocational College
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-08-20
Anticipated expiration: 2040-12-10
Also published as: CN112443383A

Abstract

The invention provides a silencer convenient to assemble, disassemble and maintain, which comprises a silencing pipe and two fixing plates arranged on the silencing pipe at intervals; a detachable shell is arranged between the two fixed plates; the shell comprises an upper shell and a lower shell; a cavity is formed among the silencing pipe, the two fixing plates and the shell; a plurality of glass fibers are filled in the cavity and extend along the extension direction of the silencing pipe; the silencer also comprises two turntables sleeved on the silencing pipe, and each turntable is provided with a detachable glass fiber mounting seat; two ends of the glass fiber are respectively fixed on the two glass fiber mounting seats; two glass fiber mount pads can rotate relatively, and when two glass fiber mount pads can rotate relatively, drive glass fiber) one end other end relatively rotates, and then change the performance of muffler. The silencer has the advantages that the glass fiber in the silencer can be conveniently replaced, and the silencer has the advantages of simple structure, convenience in maintenance, good silencing effect and the like.

Description

Silencer convenient to disassemble, assemble and maintain

Technical Field

The invention relates to the technical field of engine equipment, in particular to a muffler convenient to assemble, disassemble and maintain.

Background

When the engine works, waste gas can be continuously discharged, an exhaust pipe of the engine is usually connected with equipment such as a silencer and a three-way catalyst, and the waste gas generated by the engine enters the silencer through the exhaust pipe and is finally discharged. The existing silencer comprises a silencing pipe, a shell is connected to the silencing pipe in a welding mode, glass fibers are filled in the shell, a plurality of through holes are formed in the silencing pipe, waste gas enters a cavity formed by the shell through the through holes, energy is consumed under the action of the glass fibers, and the silencing effect is achieved.

The above technical solution has the following disadvantages: after long-time use, the glass fiber filled in the shell can be broken and then enters the silencing pipe through the through hole, and light people are sprayed out of the silencing pipe along with waste gas, so that the glass fiber filled in the shell is reduced, and the silencing effect is reduced; the serious patient blocks the silencing pipe, so that the exhaust of the engine is not smooth, and the normal work of the engine is influenced. Therefore, frequent maintenance is required.

However, because the silencing pipe and the shell are welded together, the glass fiber filled in the shell cannot be replaced independently, and only the whole silencer can be replaced, so that the operation is troublesome, and the use and maintenance cost of the vehicle is high.

Disclosure of Invention

The invention aims to overcome the defects of the traditional technology, provides the silencer which is convenient to disassemble, assemble and maintain, can conveniently replace glass fiber in the silencer, and has the advantages of simple structure, convenience in maintenance, good silencing effect and the like.

The aim of the invention is achieved by the following technical measures:

a silencer convenient to assemble, disassemble and maintain comprises a silencing pipe and two fixing plates which are arranged on the silencing pipe at intervals; a detachable shell is arranged between the two fixed plates; the shell comprises an upper shell and a lower shell; a cavity is formed among the silencing pipe, the two fixing plates and the shell; a plurality of glass fibers are filled in the cavity and extend along the extension direction of the silencing pipe; the silencer also comprises two turntables sleeved on the silencing pipe, and each turntable is provided with a detachable glass fiber mounting seat; two ends of the glass fiber are respectively fixed on the two glass fiber mounting seats; the two glass fiber mounting seats can rotate relatively, and when the two glass fiber mounting seats rotate relatively, the glass fiber mounting seats drive one end of the glass fiber to rotate relative to the other end of the glass fiber), so that the performance of the silencer is changed.

As an improvement: the outer side of the rotary table is provided with an annular first groove, the inner side of the fixing plate is provided with an annular second groove corresponding to the first groove, a coil spring is arranged in a cavity formed by the first groove and the second groove, one end of the coil spring is connected with the rotary table, and the other end of the coil spring is connected with the fixing plate.

As an improvement: be equipped with the ring gear on the carousel, be equipped with fixed pipe on the fixed plate, the one end that fixed pipe is located the fixed plate inboard is equipped with a plurality of fixed teeth, fixed intraductal internal rotation is connected with the pivot, be equipped with in the pivot can with the gear of ring gear internal gearing, be equipped with on the gear a plurality of can with fixed tooth matched with movable tooth, be equipped with resetting means between pivot and the fixed pipe.

As an improvement: the one end that the pivot is located the fixed plate outside is equipped with the kicking block, set up on the kicking block with spanner matched with spanner handle hole, resetting means is including cup jointing the epaxial spring of pivot, spring one end offsets with the kicking block, the spring other end offsets with fixed pipe.

As an improvement: the one end threaded connection that the fixed tube is located the fixed plate outside has the spiral cover, set up on the spiral cover and hold the spanner via hole that the spanner passes through, the spiral cover inboard is equipped with the ball, the ball offsets with the kicking block.

As an improvement: and a third annular groove is formed in the outer side of the turntable, and the gear ring and the gear are located in the third groove.

As an improvement: the inner side of the turntable is provided with a plurality of guide rails arranged along the radial direction of the turntable, the glass fiber mounting seat) is provided with guide grooves corresponding to the guide rails, and the inner sides of the upper shell and the lower shell are provided with pressing sheets for pressing the glass fiber mounting seat.

As an improvement: the edge of the inner side of the glass fiber mounting seat is provided with a frame, the end part of the glass fiber is positioned on the inner side of the frame, and the inner side of the frame is provided with a filler for fixing the glass fiber.

As an improvement: the upper shell is connected with the upper portion of the fixing plate through an upper screw, the lower shell is connected with the lower portion of the fixing plate through a lower screw, the sealing rings are arranged between the fixing plate and the upper shell and between the fixing plate and the lower shell, the left side and the right side of the upper shell are respectively provided with an upper edge strip, the left side and the right side of the lower shell are respectively provided with a lower edge strip, the upper edge strip is connected with the lower edge strip through a bolt and nut structure, a sealing plate is arranged between the upper edge strip and the lower edge strip, and the sealing plate and the sealing rings are integrally designed.

Due to the adoption of the technical scheme, compared with the prior art, the invention has the advantages that: when the silencing pipe needs to be replaced by the glass fiber, the upper shell and the lower shell are detached from the silencing pipe, the old glass fiber mounting seat is detached, and the new glass fiber mounting seat is mounted.

The invention is further described with reference to the following figures and detailed description.

Drawings

FIG. 1 is a schematic structural view of a muffler convenient to disassemble, assemble and maintain according to the present invention.

FIG. 2 is a schematic side view of a muffler of the present invention, which is easy to assemble, disassemble and maintain.

FIG. 3 is a schematic view of the internal structure of the muffler convenient for disassembly and assembly and easy for maintenance.

Fig. 4 is a schematic structural view of a portion a in fig. 3.

Fig. 5 is a schematic structural view of a portion B in fig. 3.

Fig. 6 is a schematic structural view of a use state of a part B in fig. 3.

Fig. 7 is a schematic view of the structure of section C-C in fig. 5.

FIG. 8 is a schematic structural view of a rotating disc in a silencer, which is convenient to disassemble and assemble and convenient to maintain.

Fig. 9 is a schematic structural view of section D-D in fig. 3.

Fig. 10 is a schematic structural view of section E-E in fig. 3.

FIG. 11 is a schematic structural view of section F-F in FIG. 3.

FIG. 12 is a schematic view of section G-G of FIG. 3.

In the figure; 1-a chamber; 2-a silencing pipe; 3-sleeving a pipe; 4-an upper shell; 5-a lower shell; 6-screwing; 7-lower screw; 8-edging; 9-lower edge strips; 10-bolt and nut structure; 11-a sealing plate; 12-a stationary tube; 13-screwing a cover; 14-a through hole; 15-fixing the plate; 16-glass fibers; 17-a sealing ring; 18-wrench via holes; 19-tabletting; 20-wrench operating hole; 21-a top block; 22-a ball bearing; 23-a spring; 24-a rotating shaft; 25-fixed teeth; 26-moving teeth; 27-a gear; 28-gear ring; 29-a turntable; 30-a glass fiber mount; 31-a bearing; 32-a first groove; 33-coil springs; 34-a second groove; 35-a guide groove; 36-a guide rail; 37-a filler; 38-a frame; 39-third groove; 40-cannula.

Detailed Description

Examples

As shown in fig. 1, 2 and 3, a silencer convenient to assemble, disassemble and maintain comprises a silencing pipe 2 and two fixing plates 15 arranged on the silencing pipe 2 at intervals, wherein the fixing plates 15 are annular, and the inner edges of the fixing plates 15 are fixedly connected with the silencing pipe 2 in a welding mode. A detachable shell is arranged between the two fixing plates 15; the housing includes an upper housing 4 and a lower housing 5. The upper shell 4 is provided with a connecting structure for connecting with a vehicle body, and the connecting structure adopts the prior art and is not described in detail herein. A chamber 1 is formed among the silencing pipe 2, the two fixing plates 15 and the shell; the chamber 1 is filled with a plurality of glass fibers 16, and the glass fibers 16 extend in the extending direction of the silencer duct 2. The silencer also comprises two turntables 29 sleeved on the silencing pipe 2, and each turntable 29 is provided with a detachable glass fiber mounting seat 30; two ends of the glass fiber 16 are respectively fixed on the two glass fiber mounting seats 30; the two glass fiber mounting seats 30 can rotate relatively, and when the two glass fiber mounting seats 30 rotate relatively, one end of the glass fiber 16 is driven to rotate relatively to the other end, so that the performance of the silencer is changed.

Specifically, the cross section of the upper shell 4 is arc-shaped, and the upper shell 4 is connected with the upper part of the fixing plate 15 through an upper screw 6; the cross section of the lower shell 5 is arc-shaped, the lower shell 5 is connected with the lower part of a fixing plate 15 through a lower screw 7, a sealing ring 17 is arranged between the fixing plate 15 and the upper shell 4 and between the fixing plate and the lower shell 5, preferably, the sealing ring 17 is made of silica gel, and the sealing ring can resist high temperature of more than 350 ℃, so that the sealing effect is ensured; the left side and the right side of the upper shell 4 are respectively provided with an upper edge strip 8, the left side and the right side of the lower shell 5 are respectively provided with a lower edge strip 9, the upper edge strip 8 and the lower edge strip 9 are connected through a bolt and nut structure 10, a sealing plate 11 is arranged between the upper edge strip 8 and the lower edge strip 9, and preferably, the sealing plate 11 is made of silica gel, is resistant to high temperature of more than 350 ℃, and ensures the sealing effect; the sealing plate 11 and the sealing ring 17 are integrally designed, so that gaps are reduced, and the sealing effect is guaranteed.

The part of the silencing pipe 2 between the two fixing plates 15 is provided with a plurality of through holes 14, and the waste gas enters a cavity formed by the upper shell 4 and the lower shell 5 through the through holes 14. The part of the silencing tube 2 between the two fixing plates 15 is rotatably connected with two rotating discs 29 arranged along the front-back direction, the rotating discs 29 are circular, and a bearing 31 is arranged between the inner edge of each rotating disc 29 and the silencing tube 2.

As shown in fig. 4, 5 and 6, each rotary table 29 is detachably connected with a plurality of glass fiber installation seats 30, a plurality of glass fibers 16 are arranged between the glass fiber installation seats 30 located in front and the glass fiber installation seats 30 located in rear, the rotary table 29 is provided with a gear ring 28, each fixing plate 15 is provided with a fixing tube 12, one end of the fixing tube 12 located at the inner side of the fixing plate 15 is provided with a plurality of fixing teeth 25, the fixing tube 12 is rotatably connected with a rotating shaft 24, and the rotating shaft 24 and the fixing tube 12 are sealed, and the sealing device adopts the prior art and is not described herein again. A gear 27 capable of internally meshing with the gear ring 28 is arranged on the rotating shaft 24, and the gear 27 is an external gear; the gear 27 is provided with a plurality of movable teeth 26 capable of being matched with the fixed teeth 25, one side surface of the fixed teeth 25 is axially parallel to the fixed tube 12, one side surface of the fixed teeth 25 is obliquely arranged, one side surface of the movable teeth 26 is axially parallel to the fixed tube 12, one side surface of the fixed teeth 25 is obliquely arranged, the movable teeth 26 can conveniently rotate along one direction, the movable teeth 26 are prevented from reversely rotating, the non-return effect is achieved, and a reset device is arranged between the rotating shaft 24 and the fixed tube 12.

When in use, firstly, a plurality of glass fiber mounting seats 30 are arranged on the turntable 29; then, the rotating shaft 24 is pushed, the rotating shaft 24 moves inwards, the movable teeth 26 are separated from the fixed teeth 25, at the moment, the rotating shaft 24 can be rotated to drive the gear 27 to rotate, and further the gear ring 28 and the rotary table 29 can be driven to rotate, preferably, from a viewing angle of back to front, the rotary table 29 in the front moves clockwise, the rotary table 29 in the rear moves anticlockwise, the glass fibers 16 are pulled together, the glass fibers 16 are tensioned and gathered together, the compactness is improved, and the noise reduction effect is improved; finally, the rotating shaft 24 is pulled, the rotating shaft 24 moves outwards, and the movable teeth 26 are re-meshed with the fixed teeth 25, so that the gear 27 is prevented from rotating.

After the glass fiber 16 is installed, the upper shell 4 and the lower shell 5 are installed, and the silencing pipe 2 and the exhaust pipe 1 are connected together, so that the exhaust pipe can be normally used.

When the degree of tension of the glass fiber 16 needs to be finely adjusted, the rotating shaft 24 is directly rotated, and the reset device always applies an outward force to the rotating shaft 24 to prevent the gear 27 from rotating.

When the glass fiber 16 needs to be replaced, the silencing pipe 2 is detached from the exhaust pipe 1, the upper shell 4 and the lower shell 5 are detached, the old glass fiber mounting seat 30 is detached, and the new glass fiber mounting seat 30 is mounted according to the steps, so that the operation is convenient.

The one end that pivot 24 is located the fixed plate 15 outside is equipped with kicking block 21, set up on the kicking block 21 with spanner matched with spanner handle hole 20, the preferred, the spanner adopts interior hexagonal spanner, spanner handle hole 20 is hexagonal hole, resetting means is including cup jointing the spring 23 in pivot 24, spring 23 one end offsets with kicking block 21, the spring 23 other end offsets with fixed pipe 12.

When the gear rotating shaft device is used, an operator operates the rotating shaft 24 by using a wrench, the operation is convenient and labor-saving, the spring 23 always applies outward force to the rotating shaft 24, and the gear 27 is prevented from rotating.

The diameter that fixed pipe 12 is located the outside portion of fixed plate 15 is greater than the diameter of fixed pipe 12 other parts, the one end threaded connection that fixed pipe 12 is located the fixed plate 15 outside has spiral cover 13, set up the spanner via hole 18 that holds the spanner and pass through on the spiral cover 13, spiral cover 13 inboard is equipped with ball 22, ball 22 offsets with kicking block 21. The balls 22 are rotatably connected to the inner side of the cap 13 for reducing the friction between the cap 13 and the top block 21, which is implemented in the prior art and will not be described herein.

When the wrench is used, the rotary cover 13 is rotated, the rotary cover 13 pushes the rotary shaft 24 to move inwards, an operator only needs to rotate the wrench, extra effort is not needed to push the rotary shaft 24, and the wrench is convenient to operate; after the operation is finished, the rotary cover 13 is rotated reversely, and the rotary shaft 24 is returned under the action of the spring 23.

As shown in fig. 3, 4, 5, 6, 7, 8, 9 and 10, a plurality of T-shaped guide rails 36 are arranged along the radial direction of the turntable 29, T-shaped guide grooves 35 corresponding to the guide rails 36 are formed on the glass fiber mounting seat 30, and pressing pieces 19 for pressing the glass fiber mounting seat 30 are arranged on the inner sides of the upper shell 4 and the lower shell 5.

When the glass fiber installation seat is used, the T-shaped guide groove 35 is aligned with the T-shaped guide rail 36, the glass fiber installation seat 30 is installed, the inner side of the glass fiber installation seat 30 abuts against the silencing pipe 2, the outer side of the glass fiber installation seat 30 abuts against the pressing sheet 19, and firmness of the rotary table 29 and the glass fiber installation seat 30 is improved.

The inboard edge of glass fiber mount pad 30 is equipped with frame 38, glass fiber 16 tip is located frame 38 inboard, frame 38 inboard is equipped with the filler 37 that is used for fixed glass fiber 16, filler 37 adopts high temperature resistant inorganic glue, like 8812 series of the production of the glue industry of the Hui Rui of Dongguan city, it adopts prior art, no longer describes here.

As shown in fig. 3, 4, 5, 6, 11 and 12, an annular first groove 32 is formed on the outer side of the turntable 29, an annular second groove 34 corresponding to the first groove 32 and formed on the inner side of the fixing plate 15 is formed on the inner side of the fixing plate 15, a coil spring 33 is arranged in a cavity formed by the first groove 32 and the second groove 34, one end of the coil spring 33 is connected with the turntable 29, and the other end of the coil spring 33 is connected with the fixing plate 15.

When the glass fiber tensioning device is used, the coil spring 33 drives the turntable 29 positioned in the front to move clockwise, the turntable 29 positioned in the rear to move anticlockwise, the tensioning force of the glass fibers 16 is kept, and meanwhile, the coil spring is positioned in a cavity formed by the first groove 32 and the second groove 34, so that the space is saved.

An annular third groove 39 is formed in the outer side of the rotating disc 29, and the gear ring 28 and the gear 27 are located in the third groove 39.

When in use, the gear ring 28 and the gear 27 are positioned in the third groove 39, so that the space is saved.

As shown in the attached fig. 1 and 2, a sleeve 3 is arranged at the front end of the silencing tube 2, the inner diameter of the sleeve 3 is larger than that of the silencing tube 2, and the sleeve 3 is used for connecting the silencer with an engine exhaust pipe.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims

1. The utility model provides a make things convenient for muffler of dismouting maintenance of being convenient for which characterized in that: comprises a silencing pipe (2) and two fixing plates (15) which are arranged on the silencing pipe (2) at intervals; a detachable shell is arranged between the two fixing plates (15); the shell comprises an upper shell (4) and a lower shell (5); a chamber (1) is formed among the silencing pipe (2), the two fixing plates (15) and the shell; a plurality of glass fibers (16) are filled in the cavity (1), and the glass fibers (16) extend along the extension direction of the silencing pipe (2);

the silencer also comprises two turntables (29) sleeved on the silencing pipe (2), and each turntable (29) is provided with a detachable glass fiber mounting seat (30); two ends of the glass fiber (16) are respectively fixed on the two glass fiber mounting seats (30); the two glass fiber installation seats (30) can rotate relatively, and when the two glass fiber installation seats (30) rotate relatively, one end of the glass fiber (16) is driven to rotate relative to the other end, so that the performance of the silencer is changed.

2. The easy-to-disassemble and assemble easy-to-maintain muffler according to claim 1, wherein: the outer side of the rotary disc (29) is provided with a first annular groove (32), the inner side of the fixing plate (15) is provided with a second annular groove (34) corresponding to the first annular groove (32), a coil spring (33) is arranged in a cavity formed by the first annular groove (32) and the second annular groove (34), one end of the coil spring (33) is connected with the rotary disc (29), and the other end of the coil spring (33) is connected with the fixing plate (15).

3. The easy-to-disassemble and assemble easy-to-maintain muffler according to claim 2, wherein: a gear ring (28) is arranged on the rotary disc (29), a fixed tube (12) is arranged on the fixed plate (15), a plurality of fixed teeth (25) are arranged at one end, located on the inner side of the fixed plate (15), of the fixed tube (12), a rotating shaft (24) is connected in the fixed tube (12) in a rotating mode, a gear (27) capable of being meshed with the gear ring (28) is arranged on the rotating shaft (24), and the gear (27) is an external gear; a plurality of movable teeth (26) which can be matched with the fixed teeth (25) are arranged on the gear (27), and a reset device is arranged between the rotating shaft (24) and the fixed pipe (12).

4. The easy-to-disassemble and assemble easy-to-maintain muffler according to claim 3, wherein: the one end that pivot (24) are located fixed plate (15) outside is equipped with kicking block (21), set up on kicking block (21) with spanner matched with spanner handle hole (20), resetting means is including cup jointing spring (23) on pivot (24), spring (23) one end offsets with kicking block (21), the spring (23) other end offsets with fixed pipe (12).

5. The easy-to-disassemble and assemble easy-to-maintain muffler according to claim 4, wherein: the one end threaded connection that fixed pipe (12) are located fixed plate (15) outside has spiral cover (13), offer on spiral cover (13) and hold spanner via hole (18) that the spanner passes through, spiral cover (13) inboard is equipped with ball (22), ball (22) offset with kicking block (21).

6. The easy-to-disassemble and assemble easy-to-maintain muffler according to claim 5, wherein: and a third annular groove (39) is formed in the outer side of the turntable (29), and the gear ring (28) and the gear (27) are positioned in the third groove (39).

7. The easy-to-disassemble and assemble easy-to-maintain muffler according to claim 6, wherein: the inner side of the rotary table (29) is provided with a plurality of guide rails (36) which are arranged along the radial direction of the rotary table, the glass fiber mounting seat (30) is provided with guide grooves (35) corresponding to the guide rails (36), and the inner sides of the upper shell (4) and the lower shell (5) are provided with pressing sheets (19) used for pressing the glass fiber mounting seat (30).

8. The easy-to-disassemble and assemble easy-to-maintain muffler according to claim 7, wherein: the glass fiber mounting seat is characterized in that a frame (38) is arranged on the edge of the inner side of the glass fiber mounting seat (30), the end part of the glass fiber (16) is located on the inner side of the frame (38), and a filler (37) used for fixing the glass fiber (16) is arranged on the inner side of the frame (38).

9. The easy-to-disassemble and assemble easy-to-maintain muffler according to claim 8, wherein: the upper shell (4) is connected with the upper part of a fixing plate (15) through an upper screw (6), the lower shell (5) is connected with the lower part of the fixing plate (15) through a lower screw (7), and a sealing ring (17) is arranged between the fixing plate (15) and the upper shell (4) as well as between the fixing plate and the lower shell (5); go up casing (4) the left and right sides and respectively be equipped with strake (8), casing (5) the left and right sides respectively is equipped with down strake (9) down, go up strake (8) and be connected through bolt and nut structure (10) between strake (9) down, go up strake (8) and be equipped with closing plate (11) down between strake (9), closing plate (11) and sealing washer (17) adopt the integrated design.