CN112253286A - Diesel engine silencer for high-power agricultural machinery - Google Patents
Diesel engine silencer for high-power agricultural machinery Download PDFInfo
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- CN112253286A CN112253286A CN202011129422.0A CN202011129422A CN112253286A CN 112253286 A CN112253286 A CN 112253286A CN 202011129422 A CN202011129422 A CN 202011129422A CN 112253286 A CN112253286 A CN 112253286A
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- fixedly connected
- diesel engine
- silencer
- piston
- rod
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/082—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling the gases passing through porous members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/10—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling in combination with sound-absorbing materials
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
- F01N13/1844—Mechanical joints
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/022—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses a diesel engine silencer for high-power agricultural machinery, which comprises a diesel engine exhaust pipe, wherein the top end of the diesel engine exhaust pipe is movably connected with a rotating rod, the bottom end of the rotating rod is fixedly connected with a first bevel gear, one side of the first bevel gear is meshed with a second bevel gear, the middle part of the second bevel gear is fixedly connected with a first threaded sleeve, the first threaded sleeve is internally and threadedly connected with a threaded rod, one end of the threaded rod is threadedly connected with a second threaded sleeve, the surface of the second threaded sleeve is movably connected with a sliding sleeve, the surface of the sliding sleeve is symmetrically connected with a first fixed plate, the first fixed plate is connected with a second fixed plate through a plurality of movable rods, the second fixed plate is fixedly connected with a limiting block through a connecting plate, one end of the: the muffler can stable installation in the blast pipe, and the installation and the dismantlement of being convenient for also can avoid granule debris to enter into the muffler, exert an influence to the noise cancelling effect of muffler.
Description
Technical Field
The invention relates to the field of high-power agricultural machinery, in particular to a diesel engine silencer for high-power agricultural machinery.
Background
The silencer is a silencing device widely adopted by an exhaust system of an internal combustion engine of an engineering machine, is widely applied in the fields of engineering machines and the like, particularly, diesel engines are mostly adopted as power applied to agricultural machines, and due to the particularity of processing objects of the agricultural machines and the harsh property of working environments, the noise generated by diesel engines for the agricultural machines is very serious in harm to drivers and surrounding people, so that the installation of the silencer of the diesel engines is very important, most of existing silencer of the diesel engines are fixed by bolts and nuts, although the silencer can play a role in fixing, the silencer of the diesel engines is influenced by long-time machine vibration, the bolts and the nuts can be loosened to fall off and are not stable enough, the bolts and the nuts are not easy to detach and install, inconvenience is brought to later repair and cleaning, in addition, the existing silencer is installed in an exhaust pipe of the diesel engines, and exhaust gas discharged by exhaust holes contains some particle impurities, these particulate impurities are easily introduced into the muffler, and the long-term accumulation of the impurities affects the use effect of the muffler.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
The technical task of the invention is to provide a diesel engine silencer for high-power agricultural machinery to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a diesel engine silencer for high-power agricultural machinery comprises a diesel engine exhaust pipe, wherein a particle filter screen is fixedly connected inside the diesel engine exhaust pipe, a dust suction mechanism is arranged below the particle filter screen, a rotating rod is movably connected to the top end of the diesel engine exhaust pipe, the bottom end of the rotating rod penetrates through the diesel engine exhaust pipe and a first bevel gear is fixedly connected with the diesel engine exhaust pipe, a second bevel gear is meshed on one side, away from the particle filter screen, of the first bevel gear, a first threaded sleeve is fixedly connected to the axis of the second bevel gear, a threaded rod is connected to the inner thread of the first threaded sleeve, a second threaded sleeve is connected to the surface, away from the first threaded sleeve, of the threaded rod, a sliding sleeve is movably connected to the surface of the second threaded sleeve, the sliding sleeve is connected with the threaded rod, the utility model discloses a diesel engine exhaust pipe, including fixed plate I, movable shaft swing joint, spacing groove, thread bush two, thread bush one, the top fixedly connected with connecting plate of fixed plate II, the top fixedly connected with stopper of connecting plate, the spacing groove that quantity is four is seted up to the inner wall symmetry of diesel engine blast pipe, thread bush two is kept away from the one end fixedly connected with cross of thread bush I, the cross with be equipped with stop gear between the connecting plate, the cross is kept away from one side fixedly connected with muffler of stopper, the inside symmetric connection of muffler has a plurality of protruding pieces, the inside of muffler is equipped with keeps off sound mechanism.
Furthermore, the dust collection mechanism comprises a dust collection port, a dust collection pipe and a dust collection box, the dust collection port is fixedly connected to the lower portion of the particle filter screen, the dust collection pipe is fixedly connected to the bottom end of the dust collection port, the dust collection pipe penetrates through the diesel engine exhaust pipe and is fixedly connected with the dust collection box, and one end, far away from the dust collection pipe, of the dust collection box is connected with a negative pressure mechanism.
Further, the negative pressure mechanism comprises a piston cylinder, a piston rod, an air suction pipe, an exhaust pipe, a one-way valve I and a one-way valve II, wherein the piston cylinder is arranged at one end, away from the dust suction pipe, of the dust collection box, the top end of the piston cylinder is fixedly connected with the exhaust pipe of the diesel engine, the piston is movably connected inside the piston cylinder, the piston rod is fixedly connected with one end of the piston, the piston cylinder is connected with the dust collection box through the air suction pipe, the one-way valve I is arranged on the air suction pipe, the exhaust pipe is fixedly connected with the bottom end of the piston cylinder, the one-way valve II is arranged on the exhaust pipe, and the.
Further, actuating mechanism includes motor, master gear, pinion, arc gear and rack, the bottom fixedly connected with motor of diesel engine blast pipe, the output shaft fixedly connected with master gear of motor, the both sides of master gear all mesh the pinion, the axle center department fixedly connected with arc gear of pinion, the piston rod is kept away from the one end fixed surface of piston is connected with the rack, the rack with the arc gear meshing.
Further, keep off sound mechanism including keeping off soundboard, movable block, recess, spring, connecting rod, solid fixed cylinder and opening, the inside of muffler is connected with solid fixed cylinder through the connecting rod, gu fixed cylinder is inside to be seted up the opening, the inside movable block that is equipped with of opening, the one end fixedly connected with of movable block keeps off the soundboard, the other end of movable block is seted up flutedly, the recess with be connected with the spring between the solid fixed cylinder, be equipped with slide mechanism between movable block and the opening.
Further, slide mechanism includes slide bar and spout, the spout has all been seted up at the open-ended both ends, sliding connection has the slide bar in the spout, the slide bar with movable block fixed connection.
Furthermore, limiting mechanism includes limiting slide rail and limiting slide block, limiting slide rail has all been seted up at the four corners of cross, sliding connection has limiting slide block in the limiting slide rail, limiting slide block with connecting plate fixed connection.
Furthermore, a filter screen is fixedly connected inside the air suction pipe.
Furthermore, one end of the threaded rod, which is far away from the second threaded sleeve, is fixedly connected with a stop block.
Furthermore, the top end of the rotating rod penetrates through the diesel engine exhaust pipe and is fixedly connected with a rotating handle.
The invention has the beneficial effects that:
1. this diesel engine muffler, through setting up bull stick, bevel gear one, bevel gear two, thread bush one, threaded rod, thread bush two, sliding sleeve, fixed plate one, movable rod, fixed plate two, connecting plate, stopper, restriction groove, cross and limiting mechanism, can rotate the bull stick control stopper and insert the spacing inslot for the muffler can be stable install in the blast pipe, be convenient for install and dismantle, make things convenient for the later stage to repair and wash the muffler.
2. Through setting up granule filter screen, dust absorption mechanism, negative pressure mechanism and actuating mechanism, the exhaust granule debris of clearance diesel engine that can be timely avoid these granule debris to enter into the muffler, exert an influence to the noise cancelling effect of muffler.
3. Through setting up muffler, protruding piece and fender sound mechanism, can make sound consume between the protruding piece repeatedly, keep off the soundboard and openly keep out sound, increase the effect of amortization.
4. Through setting up the limiting mechanism, both can be convenient for the removal of connecting plate, also can inject the threaded rod and not rotate along with the rotation of thread bush one, increased the stability of removing.
5. Through setting up the filter screen, can prevent that the granule impurity in the dust collection box from entering into the piston cylinder in, influencing the function of piston cylinder, through setting up the dog, can limit threaded rod's shift position.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a silencer of a diesel engine for a high-power agricultural machine according to an embodiment of the invention;
FIG. 2 is an enlarged view at A in FIG. 1;
FIG. 3 is an enlarged view at B in FIG. 1;
FIG. 4 is a schematic structural diagram of a limiting mechanism in a diesel engine silencer for high-power agricultural machinery according to an embodiment of the invention;
fig. 5 is a schematic structural diagram of a negative pressure mechanism in a silencer of a diesel engine for a high-power agricultural machine according to an embodiment of the invention.
Reference numerals:
1. a diesel exhaust pipe; 2. a particle filter screen; 3. a rotating rod; 4. a first bevel gear; 5. a second bevel gear; 6. sleeving a first thread; 7. a threaded rod; 8. a second thread sleeve; 9. a sliding sleeve; 10. a first fixing plate; 11. a movable rod; 12. a second fixing plate; 13. a connecting plate; 14. a limiting block; 15. a cross; 16. a muffler; 17. a raised block; 18. a dust suction port; 19. a dust collection pipe; 20. a dust collection box; 21. a piston cylinder; 22. a piston; 23. a piston rod; 24. an air intake duct; 25. an exhaust pipe; 26. a one-way valve I; 27. a second one-way valve; 28. a motor; 29. a main gear; 30. a pinion gear; 31. an arc gear; 32. a rack; 33. a sound blocking plate; 34. a movable block; 35. a groove; 36. a spring; 37. a connecting rod; 38. a fixed cylinder; 39. an opening; 40. a slide bar; 41. a chute; 42. a limiting slide rail; 43. a limiting slide block; 44. a filter screen; 45. a stopper; 46. a handle is rotated; 47. a limiting groove.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
The first embodiment is as follows:
referring to fig. 1-5, the muffler of the diesel engine for the high-power agricultural machine according to the embodiment of the invention comprises a diesel engine exhaust pipe 1, a particle filter screen 2 is fixedly connected inside the diesel engine exhaust pipe 1, a dust suction mechanism is arranged below the particle filter screen 2, a rotating rod 3 is movably connected to the top end of the diesel engine exhaust pipe 1, a bevel gear i 4 is fixedly connected to the bottom end of the rotating rod 3 and penetrates through the diesel engine exhaust pipe 1, a bevel gear ii 5 is engaged with one side of the bevel gear i 4 away from the particle filter screen 2, a thread bushing i 6 is fixedly connected to the axis of the bevel gear ii 5, a threaded rod 7 is connected to the internal thread of the thread bushing i 6, a thread bushing ii 8 is connected to the surface of one end of the threaded rod 7 away from the thread bushing i 6, and a sliding sleeve 9 is movably connected, the sliding sleeve 9 is connected with the threaded rod 7, the surface of the sliding sleeve 9 is symmetrically connected with four first fixed plates 10, the first fixed plates 10 are movably connected with a plurality of movable rods 11 through movable shafts, the top ends of the movable rods 11 are movably connected with second fixed plates 12 through movable shafts, the top ends of the second fixed plates 12 are fixedly connected with connecting plates 13, the top ends of the connecting plates 13 are fixedly connected with limit blocks 14, four limit grooves 47 are symmetrically formed in the inner wall of the diesel engine exhaust pipe 1, one end, far away from the first threaded sleeve 6, of the second threaded sleeve 8 is fixedly connected with a cross 15, a limit mechanism is arranged between the cross 15 and the connecting plates 13, one side, far away from the limit blocks 14, of the cross 15 is fixedly connected with a silencer 16, the interior of the silencer 16 is symmetrically connected with a plurality of raised blocks 17, and the silencer 16 and the raised blocks 17 are made of silencing materials, the muffler 16 is provided with a sound blocking mechanism inside.
Through the scheme of the invention, the rotating rod 3 drives the first threaded sleeve 6 to rotate through the meshing of the first bevel gear 4 and the second bevel gear 5, so that the threaded rod 7 drives the sliding sleeve 9 to move forwards, the limiting block 14 is inserted into the limiting groove 47, the installation of the silencer 16 is completed, and the quick installation and the good disassembly can be realized.
Example two:
referring to fig. 1 and 5, for the dust collection mechanism, the dust collection mechanism includes a dust collection port 18, a dust collection pipe 19 and a dust collection box 20, the dust collection port 18 is fixedly connected below the particle filter screen 2, the bottom end of the dust collection port 18 is fixedly connected with the dust collection pipe 19, the dust collection pipe 19 penetrates through the diesel engine exhaust pipe 1 and is fixedly connected with the dust collection box 20, the dust collection box 20 is provided with a dust removal port, one end of the dust collection box 20 far away from the dust collection pipe 19 is connected with a negative pressure mechanism, for the negative pressure mechanism, the negative pressure mechanism includes a piston cylinder 21, a piston 22, a piston rod 23, a suction pipe 24, an exhaust pipe 25, a one-way valve one 26 and a one-way valve two 27, one end of the dust collection box 20 far away from the dust collection pipe 19 is provided with a piston cylinder 21, the top end of the piston cylinder 21 is fixedly connected with the diesel engine exhaust pipe, a piston rod 23 is fixedly connected to one end of the piston 22, the piston cylinder 21 is connected to the dust collecting box 20 through an air suction pipe 24, a first check valve 26 is arranged on the air suction pipe 24, an air discharge pipe 25 is fixedly connected to the bottom end of the piston cylinder 21, a second check valve 27 is arranged on the air discharge pipe 25, a driving mechanism is arranged at one end, far away from the piston 22, of the piston rod 23, the driving mechanism comprises a motor 28, a main gear 29, an auxiliary gear 30, an arc gear 31 and a rack 32, the bottom end of the diesel engine air discharge pipe 1 is fixedly connected with the motor 28, the motor 28 is externally connected with a power supply, an output shaft of the motor 28 is fixedly connected with the main gear 29, the auxiliary gear 30 is engaged with two sides of the main gear 29, the arc gear 31 is fixedly connected to the axis of the auxiliary gear 30, and the rack 32 is fixedly connected to, the rack gear 32 is engaged with the arc gear 31.
Through the above scheme of the present invention, the motor 28 drives the driving mechanism to operate, so as to drive the negative pressure mechanism to operate, so as to suck the gas in the dust box 20 out, so that the air pressure in the dust box 20 is reduced, so as to generate a suction force at the dust suction port 18 under the action of atmospheric pressure, and thus, the particulate impurities are sucked into the dust box 20.
Example three:
referring to fig. 1 and 3, for the sound blocking mechanism, the sound blocking mechanism includes a sound blocking plate 33, a movable block 34, a groove 35, a spring 36, a connecting rod 37, a fixed cylinder 38 and an opening 39, the inside of the silencer 16 is connected with a fixed cylinder 38 through a connecting rod 37, the fixed cylinder 38 is opened with an opening 39, a movable block 34 is arranged in the opening 39, one end of the movable block 34 is fixedly connected with a sound-blocking plate 33, the sound blocking plate 33 is made of sound insulation material, the other end of the movable block 34 is provided with a groove 35, a spring 36 is connected between the groove 35 and the fixed cylinder 38, a sliding mechanism is arranged between the movable block 34 and the opening 39, for the sliding mechanism, the sliding mechanism comprises a sliding rod 40 and a sliding chute 41, the sliding chute 41 is opened at both ends of the opening 39, a sliding rod 40 is slidably connected in the sliding groove 41, and the sliding rod 40 is fixedly connected with the movable block 34.
Through the scheme of the invention, the sound blocking plate 33 is connected with the fixed cylinder 38 and the spring 36 through the movable block 34, so that the sound blocking plate 33 can stably swing back and forth on a horizontal position, sound parts can be blocked, and the sound insulation effect is improved.
Example four:
referring to fig. 1 and 4, for a limiting mechanism, the limiting mechanism includes a limiting slide rail 42 and a limiting slide block 43, the limiting slide rail 42 is disposed at each of four corners of the cross 15, the limiting slide rail 42 is slidably connected with the limiting slide block 43, the limiting slide block 43 is fixedly connected with the connecting plate 13, for the air suction pipe 24, a filter screen 44 is fixedly connected inside the air suction pipe 24, for the threaded rod 7, a stopper 45 is fixedly connected to one end of the threaded rod 7 far away from the threaded sleeve two 8, and for the rotating rod 3, the top end of the rotating rod 3 penetrates through the diesel engine exhaust pipe 1 and is fixedly connected with a rotating handle 46.
Through the scheme of the invention, the limiting mechanism can not only facilitate the movement of the connecting plate 13, but also limit the threaded rod 7 not to rotate along with the rotation of the first threaded sleeve 6, so that the movement stability is increased, and the filter screen 44 prevents particle impurities in the dust collection box 20 from entering the piston cylinder 21 to influence the operation of the piston cylinder 21.
For the convenience of understanding the technical solutions of the present invention, the following detailed description will be made on the working principle or the operation mode of the present invention in the practical process.
In practical application, the rotating handle 46 is manually rotated, the rotating handle 46 drives the rotating rod 3 to rotate, the rotating rod 3 drives the first threaded sleeve 6 to rotate through the meshing of the first bevel gear 4 and the second bevel gear 5, so that the threaded rod 7 drives the sliding sleeve 9 to move forwards, the sliding sleeve 9 drives the connecting plate 13 to move through the movable rod 11, so that the limiting block 14 is inserted into the limiting groove 47, so that the muffler 16 is fixed, when the muffler 16 needs to be disassembled, only the rotating handle 46 needs to be reversed, so that the limiting block 14 is separated from the limiting groove 47, after the muffler 16 is assembled, when a diesel engine works, the motor 28 can be opened, the motor 28 drives the main gear 29 to rotate, the main gear 29 drives the auxiliary gears 30 at two sides to rotate through meshing, so that the arc gears 31 at two sides rotate, because the rotating directions of the arc gears 31 at two sides are the same, the arc gear 31 at one side is meshed with one side of the rack 32 to drive the piston rod 23 to move forwards, until the arc gear 31 is disengaged from the rack 32, the arc gear 31 on the other side rotates right and is engaged with the other side of the rack 32, and drives the piston rod 23 to move back, so that the piston rod 23 repeatedly moves back and forth, and the piston 22 also repeatedly moves back and forth in the piston cylinder 21, when the piston 22 is pushed forward, the check valve 26 is closed, the check valve 27 is opened, and the gas in the piston cylinder 21 is exhausted from the exhaust pipe 25, when the piston 22 is pulled back, the check valve 26 is opened, and the check valve 27 is closed, so that the gas is sucked into the piston cylinder 21 from the air suction pipe, and so that the gas in the dust collection box 20 is repeatedly pumped out, the air pressure of the dust collection box 20 is lower than the atmospheric pressure, so that the suction force is generated at the dust suction port 18 to suck the particle impurities filtered by the particle filter screen 2 into the dust collection box 20, therefore, the cleaning is completed, the sound blocking plate 33 in the silencer 16 can swing back and forth under the action of the spring 36 and can block part of sound, so that the sound is continuously consumed in the convex blocks 17 in the silencer 16, and the silencing effect is improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a diesel engine muffler for high-power agricultural machine, its characterized in that, includes diesel engine blast pipe (1), the inside fixedly connected with particle filter screen (2) of diesel engine blast pipe (1), the below of particle filter screen (2) is equipped with dust absorption mechanism, the top swing joint of diesel engine blast pipe (1) has bull stick (3), the bottom of bull stick (3) is run through diesel engine blast pipe (1) and fixedly connected with bevel gear (4), one side that bevel gear (4) kept away from particle filter screen (2) is meshed with bevel gear two (5), the axle center department fixedly connected with thread bush one (6) of bevel gear two (5), the internal thread of thread bush one (6) is connected with threaded rod (7), threaded rod (7) are kept away from one end surface thread connection of thread bush one (6) has thread bush two (8), the surface of the second thread bushing (8) is movably connected with a sliding sleeve (9), the sliding sleeve (9) is connected with the threaded rod (7), the surface of the sliding sleeve (9) is symmetrically connected with four first fixed plates (10), the first fixed plates (10) are movably connected with a plurality of movable rods (11) through movable shafts, the top ends of the movable rods (11) are movably connected with second fixed plates (12) through movable shafts, the top ends of the second fixed plates (12) are fixedly connected with a connecting plate (13), the top ends of the connecting plate (13) are fixedly connected with limit blocks (14), the inner wall of the diesel engine exhaust pipe (1) is symmetrically provided with four limit grooves (47), one end of the second thread bushing (8), far away from the first thread bushing (6), is fixedly connected with a cross (15), and a limit mechanism is arranged between the cross (15) and the connecting plate (13), one side of the cross (15) far away from the limiting block (14) is fixedly connected with a silencer (16), a plurality of protruding blocks (17) are symmetrically connected to the inside of the silencer (16), and a sound blocking mechanism is arranged inside the silencer (16).
2. The diesel engine silencer for high-power agricultural machinery according to claim 1, wherein the dust suction mechanism comprises a dust suction port (18), a dust suction pipe (19) and a dust collection box (20), the dust suction port (18) is fixedly connected below the particle filter screen (2), the dust suction pipe (19) is fixedly connected to the bottom end of the dust suction port (18), the dust suction pipe (19) penetrates through the diesel engine exhaust pipe (1) and is fixedly connected with the dust collection box (20), and one end, far away from the dust suction pipe (19), of the dust collection box (20) is connected with a negative pressure mechanism.
3. The diesel engine silencer for the high-power agricultural machinery according to claim 2, wherein the negative pressure mechanism comprises a piston cylinder (21), a piston (22), a piston rod (23), an air suction pipe (24), an air exhaust pipe (25), a one-way valve I (26) and a one-way valve II (27), one end of the dust collection box (20) far away from the air suction pipe (19) is provided with the piston cylinder (21), the top end of the piston cylinder (21) is fixedly connected with the diesel engine air exhaust pipe (1), the piston (22) is movably connected inside the piston cylinder (21), one end of the piston (22) is fixedly connected with the piston rod (23), the piston cylinder (21) is connected with the dust collection box (20) through the air suction pipe (24), the air suction pipe (24) is provided with the one-way valve I (26), and the bottom end of the piston cylinder (21) is fixedly connected with the air exhaust pipe (25), and a second check valve (27) is arranged on the exhaust pipe (25), and a driving mechanism is arranged at one end, far away from the piston (22), of the piston rod (23).
4. The silencer of the diesel engine for the high-power agricultural machine according to claim 3, characterized in that the driving mechanism comprises a motor (28), a main gear (29), a pinion (30), an arc gear (31) and a rack (32), the bottom end of the exhaust pipe (1) of the diesel engine is fixedly connected with the motor (28), the main gear (29) is fixedly connected with an output shaft of the motor (28), the pinions (30) are respectively meshed with two sides of the main gear (29), the arc gear (31) is fixedly connected with the axis of the pinion (30), the rack (32) is fixedly connected with the surface of one end, far away from the piston (22), of the piston rod (23), and the rack (32) is meshed with the arc gear (31).
5. The diesel engine silencer for the high-power agricultural machinery according to claim 1, wherein the sound blocking mechanism comprises a sound blocking plate (33), a movable block (34), a groove (35), a spring (36), a connecting rod (37), a fixed cylinder (38) and an opening (39), the fixed cylinder (38) is connected to the inside of the silencer (16) through the connecting rod (37), the opening (39) is formed in the fixed cylinder (38), the movable block (34) is arranged in the opening (39), the sound blocking plate (33) is fixedly connected to one end of the movable block (34), the groove (35) is formed in the other end of the movable block (34), the spring (36) is connected between the groove (35) and the fixed cylinder (38), and a sliding mechanism is arranged between the movable block (34) and the opening (39).
6. The silencer of the diesel engine for the high-power agricultural machinery according to claim 5, wherein the sliding mechanism comprises a sliding rod (40) and a sliding groove (41), the sliding grooves (41) are formed in two ends of the opening (39), the sliding rod (40) is connected in the sliding groove (41) in a sliding mode, and the sliding rod (40) is fixedly connected with the movable block (34).
7. The silencer of the diesel engine for the high-power agricultural machine according to claim 1, wherein the limiting mechanism comprises limiting slide rails (42) and limiting slide blocks (43), the limiting slide rails (42) are arranged at four corners of the cross (15), the limiting slide blocks (43) are connected in the limiting slide rails (42) in a sliding mode, and the limiting slide blocks (43) are fixedly connected with the connecting plate (13).
8. The silencer of the diesel engine for the high-power agricultural machine as claimed in claim 3, wherein a filter screen (44) is fixedly connected to the inside of the air suction pipe (24).
9. The silencer of the diesel engine for the high-power agricultural machinery as claimed in claim 1, wherein a stop block (45) is fixedly connected to one end of the threaded rod (7) far away from the second threaded sleeve (8).
10. The silencer of the diesel engine for the high-power agricultural machinery as claimed in claim 1, wherein the top end of the rotating rod (3) penetrates through the exhaust pipe (1) of the diesel engine and is fixedly connected with a rotating handle (46).
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| CN202011129422.0A CN112253286B (en) | 2020-10-21 | 2020-10-21 | Diesel engine silencer for high-power agricultural machinery |
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| CN202011129422.0A CN112253286B (en) | 2020-10-21 | 2020-10-21 | Diesel engine silencer for high-power agricultural machinery |
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