Overhead rice machine gas extraction system
Technical field
The utility model belongs to rice harvester technical field, more particularly to a kind of overhead rice machine gas extraction system.
Background technology
In current crawler type rice harvester, gas extraction system is arranged in the bottom of complete machine, i.e., using underneath type exhaust system
System, as shown in figure 1, for the requirement that the attractive in appearance and blast pipe Louis of product is arranged, usual way is one long cylinder of design
The muffler 100 of formula, muffler 100 and pipeline are placed in the middle part of chassis main frame, between two crawler belts.
This exhaust arrangement has following deficiency:On the one hand, muffler easily accumulates broken grass, and broken grass meets high temperature, when
Between long have the hidden danger caught fire;On the other hand, when rice machine is by mud pin deep plot, muffler can touch muddy water
And rice stubble, when resistance is big, muffler can be fallen down by extension, cause to damage or lose;Furthermore during rice machine parking unloading,
Tailpipe to a certain local blow-through, causes straw under high temperature to smolder for a long time, or bakes and hinder appliance crew.
In addition, the blast pipe that muffler is connected with engine is set with quartz sand mode without shock-absorbing function, heat-insulated use,
Weight is larger.
Utility model content
Technical problem to be solved in the utility model is:A kind of overhead rice machine gas extraction system is provided, it is existing to solve
Muffler accumulates careless fire risk in some crawler type rice machines, deep mud pin is blown on stalk or baked by property difference and flue gas
Hinder the technical problem of appliance crew.
In order to solve the above technical problems, the technical solution of the utility model is:Overhead rice machine gas extraction system, including row
Gas muffler and exhaust pipe assembly, the air inlet pipe of the muffler are fixedly installed on the engine of the rice machine, institute
Stating exhaust pipe assembly includes blast pipe and the support plate on the blast pipe, and the muffler is fixedly installed in the water
Between the threshing body and tanker of rice machine, and the both sides of the muffler are set between the threshing body and tanker respectively
There is gap;The gas outlet of the muffler is fixedly connected with the blast pipe, and the support plate is fixedly installed in the thresing machine
On body, the blast pipe upwardly extends along its discharge directions and the afterbody of the blast pipe bends towards the top of the rice machine.
As an improvement the exhaust outlet of the blast pipe is installed with protection cap assembly, the protection cap assembly bag
Include head protector housing and the screen pack in the head protector housing.
As a further improvement, the head protector housing includes the trapezoidal upper shell and inverted trapezoidal lower casing to link together
Body, the exhaust end of the trapezoidal upper shell are provided with the trapezoidal protective plate to stretch out.
As an improvement the air inlet pipe of the muffler is enclosed with the first light fire-proof sheath.
As a further improvement, the first light fire-proof sheath is double-deck volcanic rock fibre sheath.
As an improvement the outer surface of the muffler is enclosed with collet.
As an improvement the second light fire-proof sheath is enclosed with the blast pipe below the support plate.
As a further improvement, the second light fire-proof sheath includes internal layer volcanic rock fibre sheath and the resistance to height of outer layer
Warm clad aluminum foil sheath.
As an improvement the air inlet pipe of the muffler is provided with bellows.
As an improvement the muffler is ellipse.
After employing above-mentioned technical proposal, the beneficial effects of the utility model are:
Due to the muffler of overhead rice machine gas extraction system be fixedly installed in the threshing body of the rice machine with
Between tanker, and the both sides of the muffler are provided with gap between the threshing body and tanker respectively;Thus weeds
It can be slid with clever chaff by the gap of muffler both sides, avoid accumulating broken grass on muffler, effectively eliminate
Fiery hidden danger, and overhead rice machine gas extraction system is used, compared to existing underneath type, integral installation highly improves, and can keep away
Exempt from muffler contact muddy water and rice stubble, do not influence the passing through property of deep mud pin;Due to the blast pipe along its discharge directions to
The afterbody of upper extension and the blast pipe bends towards the top of the rice machine, and flue gas can be avoided to blow on stalk or bake wound with car
Personnel.
Overhead rice machine gas extraction system provided by the utility model, muffler be not easy product grass, eliminate catch fire it is hidden
Suffer from;The passing through property of deep mud pin is not influenceed;And avoid flue gas and blow on stalk or bake and hinder appliance crew.
Because the exhaust outlet of the blast pipe is installed with protection cap assembly, the protection cap assembly includes protection cap shell
Body and the screen pack in the head protector housing, thus head protector housing can play diffusion orient to the flue gas of discharge
And it can prevent raindrop from falling into blast pipe;The particle and moisture in flue gas can be stopped by screen pack, avoided in flue gas
Particle and moisture are sprayed on the drum cover and shield of rice machine.
Because the air inlet pipe of the muffler is enclosed with the first light fire-proof sheath, thus pass through the first light fire-proof
Sheath can play a part of fire prevention and loss of weight.
Because the outer surface of the muffler is enclosed with collet, hidden danger of catching fire is further obviated.
Due to being enclosed with the second light fire-proof sheath on the blast pipe below the support plate, further obviate
Catch fire hidden danger.
Because the air inlet pipe of the muffler is provided with bellows, thus engine work can be reduced by bellows
Vibrated caused by making, be hardly damaged muffler.
Because the muffler is ellipse, thus it is easy to the landing of weeds and clever chaff.
Brief description of the drawings
Fig. 1 is the structural representation for the underneath type rice machine gas extraction system that prior art provides;
Fig. 2 is structural representation of the present utility model;
In figure:100- mufflers;1- mufflers, 11- air inlet pipe, 12- bellowss, 2- exhaust pipe assemblies, 21-
Blast pipe, 22- support plates, 3- clamps, 4- protection cap assemblies, the trapezoidal upper shells of 41-, 42- inverted trapezoidal lower houses, the trapezoidal protection of 43-
Plate.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
As shown in Fig. 2 a kind of overhead rice machine gas extraction system, including muffler 1 and exhaust pipe assembly 2.
The air inlet pipe 11 of muffler 1 is fixedly installed in the engine (not shown) of rice machine by fastener
On.In order that muffler 1 is hardly damaged, the air inlet pipe 11 of muffler 1 is provided with bellows 12, passes through bellows 12
It can reduce and be vibrated caused by engine work.Hidden danger and mitigate weight, the air inlet pipe of muffler 1 in order to avoid catching fire
11 are enclosed with the first light fire-proof sheath (not shown), it is preferred that the first light fire-proof sheath is double-deck volcanic rock fibre
Sheath.Certainly, the first light fire-proof sheath can also be selected without cotton fiber cloth etc., be well known to those skilled in the art,
This is repeated no more.
Exhaust pipe assembly 2 includes blast pipe 21 and the support plate 22 on blast pipe 21, muffler 1 pass through fastener
It is fixedly installed on the left of the threshing body (not shown) of rice machine between tanker (not shown), and muffler
1 both sides are provided with gap between threshing body and tanker respectively;The gas outlet of muffler 1 is fixedly connected by clamp 3
Blast pipe 21, support plate 22 be fixedly installed on threshing body, and blast pipe 21 is upwardly extended along its discharge directions and blast pipe 21
Afterbody bends towards the upper left side of rice machine.So, weeds and clever chaff can be slid by the gap of the both sides of muffler 1, be avoided
Broken grass is accumulated on muffler 1, effectively eliminates hidden danger of catching fire, and uses overhead rice machine gas extraction system, compared to existing
Some underneath types, integral installation are highly improved, and muffler 1 can be avoided to contact muddy water and rice stubble, do not influence deep mud pin
Passing through property;, can because blast pipe 21 upwardly extends and the afterbody of blast pipe 21 bends towards the upper left side of rice machine along its discharge directions
Hinder appliance crew to avoid flue gas from blowing on stalk or bake.
Preferably, above-mentioned muffler 1 is ellipse, is easy to the landing of weeds and clever chaff.
Preferably, in order to further eliminate hidden danger of catching fire, the outer surface of muffler 1 is enclosed with collet (in figure not
Show), it is enclosed with the second light fire-proof sheath (not shown) on the blast pipe 21 of the lower section of support plate 22, it is preferred that the
Two lightweight fireproofs include internal layer volcanic rock fibre sheath and outer layer high temp durable composite aluminum paper tinsel sheath.Certainly, the second lightweight is prevented
Fiery sheath can also select double-deck volcanic rock fibre sheath etc., be well known to those skilled in the art, will not be repeated here.
The exhaust outlet of blast pipe 21 is installed with protection cap assembly 4 by fastener, and protection cap assembly 4 includes head protector
Housing and the screen pack (not shown) in head protector housing, screen pack are preferably cylinder, and head protector housing can be right
The flue gas of discharge plays diffusion orient and can prevent raindrop from falling into blast pipe 21;It can be stopped by screen pack in flue gas
Particle and moisture, avoid the particle in flue gas and moisture from being sprayed on the drum cover and shield of rice machine.
In the present embodiment, head protector housing includes the trapezoidal upper shell 41 and inverted trapezoidal lower house 42 to link together,
The exhaust end of trapezoidal upper shell 41 is provided with the trapezoidal protective plate 43 to stretch out.
It should be noted that above-mentioned fastener is preferably bolt, naturally it is also possible to selects other fasteners, is this area skill
Known to art personnel, it will not be repeated here.
It should be noted that the shape of above-mentioned muffler 1 is not limited to ellipse, it is other using shapes such as cylinders
Muffler, as long as the function of being referred in the utility model can be realized, should also be listed in the scope of protection of the utility model.On
The afterbody of blast pipe 21 is stated towards the upper left side of rice machine, be not limited to it is above-mentioned changed direction towards mode, others, as long as energy
Realization and the utility model identical function, all should be listed in the scope of protection of the utility model.
Overhead rice machine gas extraction system provided by the utility model, muffler be not easy product grass, eliminate catch fire it is hidden
Suffer from;The passing through property of deep mud pin is not influenceed;And avoid flue gas and blow on stalk or bake and hinder appliance crew.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.