CN208858432U - A kind of split type shield, tail-gas after treatment apparatus and farm machinery - Google Patents
A kind of split type shield, tail-gas after treatment apparatus and farm machinery Download PDFInfo
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- CN208858432U CN208858432U CN201821671272.4U CN201821671272U CN208858432U CN 208858432 U CN208858432 U CN 208858432U CN 201821671272 U CN201821671272 U CN 201821671272U CN 208858432 U CN208858432 U CN 208858432U
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Abstract
The utility model relates to a kind of split type shield, tail-gas after treatment apparatus and farm machineries, a kind of split type shield, for tail-gas after treatment apparatus, including shield body and cover board, the shield body is coated on the side of the tail-gas after treatment apparatus, and the cover board is removably mounted at one end of the shield body and is located at the end of the tail-gas after treatment apparatus.The split type shield of the utility model has taken into account infrastructure cost and structure lightened control, and it is simple and easy to dismount maintenance while meeting protection requirements.
Description
Technical field
The utility model relates to the exhaust aftertreatment technical fields of farm machinery, and in particular to a kind of split type shield,
Tail-gas after treatment apparatus and farm machinery.
Background technique
It is stringenter to the exhaust emissions requirement of non-rice habitats diesel engine with the proposition that non-rice habitats state four discharges, also more
Specifically, to meet national requirements, engine need to introduce discharge post-treatment system on the basis of existing system, and post-process conduct
The core of emission control must take it reliable safeguard procedures.The existing safeguard structure one for discharge post-treatment system
As using post-processing integral coating structure, locally reserve removable maintenance position.
Utility model content
Technical problem to be solved in the utility model is in view of the deficiencies of the prior art, to provide a kind of split type protection
Cover, tail-gas after treatment apparatus and farm machinery.
The technical solution that the utility model solves above-mentioned technical problem is as follows: a kind of split type shield, for after tail gas
Processing unit, including shield body and cover board, the shield body are coated on the side of the tail-gas after treatment apparatus, institute
Cover board is stated to be removably mounted at one end of the shield body and be located at the end of the tail-gas after treatment apparatus.
The beneficial effects of the utility model are: the split type shield of the utility model, while meeting protection requirements,
Infrastructure cost and structure lightened control are taken into account, and it is simple and easy to dismount maintenance.
Based on the above technical solution, the utility model can also do following improvement.
Further, the edge of the cover board be equipped with locking edge, the cover board be fastened on one end of the shield body and
The locking edge adaptation is crimped on the peripheral side of the shield body.
Beneficial effect using above-mentioned further scheme is: locking edge is arranged at the edge of cover board, cover board, which can pass through, to be buckled
It closes side and one end of the shield body is fastened and connected, not needing other fixed connection structures can be realized cover board and prevent
The connection of shield ontology, nor need to destroy the prototype structure of cover board and shield body, easy disassembly.
Further, the peripheral side shape phase of the shape of the locking edge and the tail-gas after treatment apparatus contacted therewith
Adaptation.
Beneficial effect using above-mentioned further scheme is: by the outer of the shape of locking edge and the tail-gas after treatment apparatus
Side shape is adapted, and is more convenient installation and is fixed, and fastens even closer.
Further, the locking edge is set at cover board position corresponding with described shield body one end end face.
Beneficial effect using above-mentioned further scheme is: by cover board position corresponding with shield body one end end face
It is respectively provided with locking edge, the connection of cover board and shield body is made to cooperate even closer stabilization.
Further, the shield body is the open Semi surrounding type structure in side and one end, the punishment of one side opening
It is not connected by screw on the tail-gas after treatment apparatus, the cover board is removably mounted at one end of the shield body
Open-mouth.
Beneficial effect using above-mentioned further scheme is: shield body uses Semi surrounding type structure, is effectively reduced
The weight of tail-gas after treatment apparatus safeguard structure, and tail-gas after treatment apparatus exposed area can effectively be blocked anti-
Shield.
Further, the cross section of the shield body trapezium structure open in bottom, the shield body are corresponding
Bottom open-mouth two sides each extend over to form extended segment, the tail-gas after treatment apparatus from the open-mouth of the shield body into
Enter in the shield body and is connect by screw with the extended segment.
Beneficial effect using above-mentioned further scheme is: setting trapezium structure for shield body, and preferably
Using isosceles trapezoidal structure, facilitate the manufacturing, and facilitates being connected and fixed for shield body and tail-gas after treatment apparatus.
Further, the cover board is in trapezoidal plate structure compatible with the cross section of the shield body, trapezoidal
The upper bottom of the cover board of structure and two waists are equipped with locking edge, and the locking edge adaptation is crimped on the periphery of the shield body
Side.
Beneficial effect using above-mentioned further scheme is: cover board being also configured as trapezium structure, also convenient and shield
Ontology is connected and fixed.
Further, the shield body is equipped with several air holes.
Beneficial effect using above-mentioned further scheme is: several air holes are set in shield body, it is convenient to tail
Gas after-treatment device radiates.
A kind of tail-gas after treatment apparatus, including exhaust aftertreatment ontology and the split type shield.
The tail-gas after treatment apparatus of the utility model installs split type shield on exhaust aftertreatment ontology, is meeting
While protection requirements, infrastructure cost and structure lightened control are taken into account, and it is simple and easy to dismount maintenance.
Further, the exhaust aftertreatment ontology is equipped with shock-absorption connecting structure, and the shock-absorption connecting structure includes annular
Connector, connecting shaft and resilient cushion, the connecting shaft are arranged through the circular connector, and position is distinguished at the both ends of the connecting shaft
In the circular connector two sides and be respectively crimped between the two sides of the circular connector resilient cushion, the connection
At least one end of axis with body for connecting.
Beneficial effect using above-mentioned further scheme is: shock-absorption connecting structure in the two sides of circular connector by respectively setting
One resilient cushion, when body shakes, the junction of circular connector and body can be played effectively by resilient cushion
Damping effect；And circular connector with to attachment device ring shaped contact can be used, uniform force treats the cylinder of attachment device
Body wall plays a protective role, and cylinder when vibration will not be caused to tear because contact area is small；The adjustable adjusting shake of resilient cushion
Dynamic amplitude and effect, can not only alleviate the vibration from up and down direction, additionally it is possible to alleviate the vibration in other directions.
A kind of farm machinery, including body and the tail-gas after treatment apparatus, the air inlet of the tail-gas after treatment apparatus
Mouth is connect with the engine exhaust port of the body.
The farm machinery of the utility model installs split type shield on exhaust aftertreatment ontology, protects need meeting
While asking, infrastructure cost and structure lightened control are taken into account, and it is simple and easy to dismount maintenance.
Detailed description of the invention
Fig. 1 is the overlooking structure diagram of the split type shield of the utility model；
Fig. 2 is the structural schematic diagram of the shock-absorption connecting structure of the utility model；
Fig. 3 is the enlarged structure schematic diagram in the portion A in Fig. 2；
Fig. 4 is the side structure schematic view of the use state of the shock-absorption connecting structure of the utility model；
In attached drawing, parts list represented by the reference numerals are as follows:
1, diesel oxidation catalyst；2, particle trap；3, scr reactor；4, be fixedly connected frame；5,
Exhaust elbow；6, shock-absorption connecting structure；61, circular connector；611, interconnecting piece；62, connecting shaft；63, resilient cushion；64, it limits
Part；7, clip；8, shield；81, shield body；811, extended segment；82, cover board；821, locking edge；83, screw；
100, exhaust aftertreatment ontology；200, body；201, body connection frame.
Specific embodiment
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining that this is practical
It is novel, it is not intended to limit the scope of the utility model.
Embodiment 1
As shown in Figure 1, a kind of split type shield of the present embodiment, is used for tail-gas after treatment apparatus, including shield sheet
Body 81 and cover board 82, the shield body 81 are coated on the side of the tail-gas after treatment apparatus, and the cover board 82 is detachable
It is mounted on one end of the shield body 81 and is located at the end of the tail-gas after treatment apparatus.
The split type shield of the present embodiment has taken into account infrastructure cost and structure is light while meeting protection requirements
Quantified controlling, and it is simple and easy to dismount maintenance.
As shown in Figure 1, the edge of the embodiment of the present invention cover board 82 is equipped with locking edge 821, the cover board 82 is fastened on institute
It states one end of shield body 81 and the locking edge 821 is adapted to the peripheral side for being crimped on the shield body.In cover board
Locking edge is arranged in edge, and cover board can be fastened and connected by locking edge and one end of the shield body, does not need it
The connection of cover board and shield body can be realized in his fixed connection structure, nor needs to destroy cover board and shield body
Prototype structure, easy disassembly.Wherein, the shape of the locking edge and the tail-gas after treatment apparatus contacted therewith is outer
Side shape is adapted.The shape of locking edge is adapted with the peripheral side shape of the tail-gas after treatment apparatus, is more convenient peace
Dress is fixed, and is fastened even closer.
It is corresponding with 81 one end end face of shield body that the embodiment of the present invention locking edge 821 is set to the cover board 82
Position at.Cover board position corresponding with shield body one end end face is respectively provided with locking edge, makes cover board and shield sheet
The connection of body cooperates even closer stabilization.
As shown in Figure 1, the embodiment of the present invention shield body 81 is the open Semi surrounding type structure in side and one end,
One side open-mouth passes through screw 83 respectively and is connected on the tail-gas after treatment apparatus, and the cover board is removably mounted at described
At the open at one end of shield body.Shield body uses Semi surrounding type structure, and it is anti-to be effectively reduced tail-gas after treatment apparatus
The weight of protection structure, and tail-gas after treatment apparatus exposed area can be carried out effectively to block protection.
As shown in Figure 1, the trapezium structure that the cross section of the embodiment of the present invention shield body 81 is open in bottom, described
The two sides of the corresponding bottom open-mouth of shield body 81 each extend over to form two extended segments 811, the tail-gas after treatment apparatus
Enter in the shield body 81 from the open-mouth of the shield body 81 and is connected by screw 83 and the extended segment 811
It connects.Trapezium structure is set by shield body, and preferably uses isosceles trapezoidal structure, facilitates the manufacturing, and
Facilitate being connected and fixed for shield body and tail-gas after treatment apparatus.
As shown in Figure 1, the embodiment of the present invention cover board 82 is in ladder compatible with the cross section of the shield body 81
Shape plate structure, the upper bottom of the cover board 82 of trapezoidal structure and two waists are equipped with locking edge 821, and the locking edge 821 is adapted to
It is crimped on the peripheral side of the shield body 81.Cover board is also configured as trapezium structure, also facilitates the company with shield body
Connect fixation.
The embodiment of the present invention shield body 81 is equipped with several air holes.It is arranged in shield body several ventilative
Hole, it is convenient to radiate to tail-gas after treatment apparatus.
Since the tail-gas after treatment apparatus generally uses vertical arragement construction, the cover board 82 of the present embodiment fastens
The upper end of the shield body 81 is set, and the upper end of the tail-gas after treatment apparatus is blocked and is covered.
Embodiment 2
A kind of tail-gas after treatment apparatus of the present embodiment, including exhaust aftertreatment ontology 100 and the split type protection
Cover.
The tail-gas after treatment apparatus of the present embodiment installs split type shield on exhaust aftertreatment ontology, anti-meeting
While shield demand, infrastructure cost and structure lightened control are taken into account, and it is simple and easy to dismount maintenance.
As in Figure 2-4, the embodiment of the present invention exhaust aftertreatment ontology is equipped with shock-absorption connecting structure 6, can be by tail
Gas post-processing ontology 100 is connect with 200 other component of body, enhances the stability of exhaust aftertreatment ontology.
Wherein, as shown in figs 2-4, the shock-absorption connecting structure 6 includes circular connector 61, connecting shaft 62 and resilient cushion
63, the connecting shaft 62 is arranged through the circular connector 61, and the both ends of the connecting shaft 62 are located at the annular even
The two sides of fitting 61 and a resilient cushion 63 is respectively crimped between the two sides of the circular connector 61, the connecting shaft 62
At least one end with body 200 for connecting.Shock-absorption connecting structure by respectively setting a resilient cushion in the two sides of circular connector, when
When body shakes, the junction of circular connector and body can play effective damping effect by resilient cushion；And
And circular connector with to attachment device ring shaped contact, uniform force can be used, the barrel wall for treating attachment device plays protection
Effect will not cause cylinder when vibration to tear because contact area is small；The adjustable amplitude for adjusting vibration of resilient cushion and effect
Fruit can not only alleviate the vibration from up and down direction, additionally it is possible to alleviate the vibration in other directions.
Wherein, elastic construction can be used in the resilient cushion 63 or elastic material is made, such as rubber, spring etc..
One preferred embodiment of the present embodiment is that as shown in figs 2-4, the connecting shaft 62 is at least two.In annular
Two connecting shafts are at least set on connector, it can be by the connection of circular connector and stable machine.
One concrete scheme of the present embodiment is that as shown in figs 2-4, the peripheral side of the circular connector 61 is fixed with
One interconnecting piece 611, the connecting shaft 62 be arranged through the interconnecting piece 611 and the two sides of its both ends and the interconnecting piece 611 it
Between be respectively crimped with a resilient cushion 63.An interconnecting piece is fixed in the peripheral side of circular connector, the peace of circular connector can be increased
Range is filled, various types can be effectively adapted to.
Wherein, there are two types of embodiments for the interconnecting piece 611, specific as follows shown:
Embodiment one: the interconnecting piece 611 is to put down along what the axis direction perpendicular to the circular connector 61 extended
Hardened structure.Slab construction is set by interconnecting piece, keeps it bigger with the contact area of resilient cushion, damping effect is more preferable, more stable.
Embodiment two: as shown in figs 2-4, the interconnecting piece 611 is along the axis perpendicular to the circular connector 61
The channel steel that line direction extends, one end of the channel steel are adapted to connection with the lateral wall of the circular connector 61, and the other end is separate
The circular connector 61 is arranged.Interconnecting piece uses channel steel, and raw material is easy to get, and resilient cushion can be hidden in channel steel.
Specifically, as shown in Figures 2 and 3, the channel steel is equipped with one far from the open-position-side of described 61 one end of circular connector
Notch.Notch is arranged in the open-position-side of one end by channel steel far from the circular connector, prevents channel steel end from scratching staff,
Also facilitate the installation of resilient cushion and connecting shaft.
The notch of the present embodiment is actually to cut away the angle of channel steel open end, gap structure of the formation one similar to chamfering.
The interconnecting piece 611 of the present embodiment whether uses slab construction or channel steel, thereon for connecting the face of resilient cushion
All preferably use the plane vertical with the axis of the circular connector.
In addition, it is desirable to illustrate, circular connector 61 is equipped with connecting hole in the present embodiment, and connecting shaft 62 is through described
Connecting hole is arranged and is equipped with shock-damping structure between the inner wall of the connecting hole, can not only realize circular connector axis in this way
To damping, additionally it is possible to realize the damping in any other direction.It, can also be close by resilient cushion 63 for the damping for realizing other directions
One end of the interconnecting piece 611 extends a part into the connecting hole, i.e., sets annular table for the lateral wall of resilient cushion 63
Stepped structure abuts the step surface of resilient cushion 63 with interconnecting piece, and the one end for keeping annular table stepped structure relatively narrow is arranged in institute
It states in connecting hole, and is connected to the side wall of the annular table stepped structure on the inner wall of the connecting hole.
As shown in figs 2-4, the embodiment of the present invention connecting shaft 62 be bolt, the connecting shaft 62 not with the body
One end of 200 connections is connected with a locating part 64, and the locating part 64 is located at 62 end of connecting shaft and corresponding resilient cushion
Between 63.Locating part is set in one end that connecting shaft is connect with body, prevents resilient cushion from deviating from from connecting shaft.
One preferred embodiment of the present embodiment is that as shown in figs 2-4, the circular connector 61 is cirque structure.
It using the circular connector of cirque structure, is easy to cooperate with equipment to be connected, and circular contact, uniform force is stablized.
The device that is fixedly connected of the present embodiment, by respectively setting a resilient cushion in the two sides of circular connector, when body is sent out
When raw vibration, the junction of circular connector and body can play effective damping effect by resilient cushion；And annular
Connector with to attachment device ring shaped contact, uniform force can be used, the barrel wall for treating attachment device plays a protective role, no
Cylinder when vibration can be caused to tear because contact area is small；The adjustable amplitude for adjusting vibration of resilient cushion and effect, not only
The vibration from up and down direction can be alleviated, additionally it is possible to alleviate the vibration in other directions.
The embodiment of the present invention tail-gas after treatment apparatus is of a straight line type structural vertical arrangement or is of an L-shaped structure, the tail gas
The exhaust elbow 5 of after-treatment device tail portion is bent setting after upwardly extending.Tail-gas after treatment apparatus is arranged to linear structure
Or L-type structure, the space of farm machinery can be made full use of to carry out installation settings.
There are two types of embodiments for the exhaust gas processing device of the present embodiment, as follows respectively:
Embodiment one: the exhaust aftertreatment ontology 100 of present embodiment includes diesel oxidation catalyst 1 and particle
The inlet exhaust gas of catcher 2, the diesel oxidation catalyst 1 connect and is connected to the exhaust outlet of the engine, the diesel oil
The exhaust outlet of oxidation catalyzer 1 connect and is connected to the air inlet of the particle trap 2；The linkage section of the exhaust elbow 5
It is connected on the offgas outlet of the particle trap 2, the diesel oxidation catalyst 1 and the particle trap 2 successively connect
It is connected into linear structure or vertically connects into L-type structure.Using diesel oxidation catalyst and particle trap as tail gas after
Device is managed, can be adapted for the exhaust aftertreatment demand of the crawler type cropper of small displacement.
Embodiment two: the exhaust aftertreatment ontology 100 of present embodiment includes diesel oxidation catalyst 1, particle
Catcher 2 and scr reactor 3, the inlet exhaust gas of the diesel oxidation catalyst 1 and the engine 100
Exhaust outlet connection and connection, the exhaust outlet of the diesel oxidation catalyst 1 connect and connect with the air inlet of the particle trap 2
Logical, the exhaust outlet of the particle trap 2 connect and is connected to the air inlet of the scr reactor 3；It is described
The linkage section of exhaust elbow 5 is connected on the offgas outlet of the scr reactor 1；The diesel oil oxidation catalysis
Device 1, the particle trap 2 and the scr reactor 3 are in turn connected into linear structure；Or the bavin
Oily oxidation catalyzer 1 and the particle trap 2 be in turn connected into linear type, then again with the selective catalytic reduction reaction
Device 3 vertically connects into L-type structure；Or the particle trap 2 is in turn connected into directly with the scr reactor 3
Then linear structure connects into L-type structure with the diesel oxidation catalyst 1 again.Using diesel oxidation catalyst, the particle
Catcher and the scr reactor can be adapted for the crawler type of huge discharge as tail-gas after treatment apparatus
The exhaust aftertreatment demand of cropper.
The exhaust aftertreatment ontology 100 in embodiment two further includes urea pump tank assembly, and the urea pump tank is total
At being connect with the scr reactor 3 and provide urea for the scr reactor 3.
In above two embodiment, to by diesel oxidation catalyst 1, particle trap 2 and selective catalytic reduction
Reactor 3 is set as linear structure, and diesel oxidation catalyst 1, particle trap 2 and scr reactor 3 divide
Not Cai Yong the connection type that goes out of end inlet side two components interconnected are directly as shown in Figures 1 and 2 superimposed cloth up and down
It sets.To set L-type structure for diesel oxidation catalyst 1, particle trap 2 and scr reactor 3,
It then needs to have one of structure gone out using side inlet side in two components interconnected；Or at two interconnected
Transition is attached by the connecting tube of L-type or connecting cavity between component.
In above embodiment, diesel oxidation catalyst (DOC), by oxidation reaction, by an oxidation in engine exhaust
Carbon (CO) and hydrocarbon (HC) are converted to harmless water (H2And carbon dioxide (CO 0)2) device.Particle trap DPF
(Diesel Particulate Filter) is a kind of ceramic filter being mounted in diesel engine emissions system, it can
To be captured before Particulate Emission substance enters atmosphere；Selective catalytic reduction reaction (Selective Catalytic
Reduction, SCR) refer under the effect of the catalyst, utilize reducing agent (such as NH3, liquefied ammonia, urea) come " selective "
With the NO in flue gasxIt reacts and generates nontoxic and pollution-free N2And H2O.Scr reactor application SCR principle
Device can be realized and carry out reduction reaction to the oxynitrides in exhaust gas.In addition, it is necessary to explanation, the diesel oil oxidation
Catalyst converter 1 and particle trap 2 all use column structure, and when it is arranged into linear structure, respective center line prolongs
Long line is overlapped.
Wherein, the end of the diesel oxidation catalyst 1 is equipped with the frame 4 that is fixedly connected, for connecting with other equipment.It is described
The outside of tail-gas after treatment apparatus is equipped with shield, and the device that is fixedly connected can also be installed on the shield.
Collet is enclosed on the outside of the embodiment of the present invention tail-gas after treatment apparatus.In the outside of tail-gas after treatment apparatus
Collet is wrapped up, weeds is eliminated and clever chaff accumulation causes the hidden danger of kindling.
The collet of the present embodiment can be made the material that tail-gas after treatment apparatus is thermally shielded using any, example
Such as glass fibre, asbestos, rock wool, silicate material.
It is connected between the embodiment of the present invention tail-gas after treatment apparatus and the engine by air inlet pipe, the air inlet pipe
Middle part is connected with one section of bellows for vibration damping；The air inlet pipe is wrapped with collet.One section is connected in the middle part of air inlet pipe
For the bellows of vibration damping, the vibration generated when can effectively reduce engine operation is less likely to be damaged tail-gas after treatment apparatus,
Collet is wrapped up in the outside of air inlet pipe, effectively can prevent fires and keep the temperature.
The embodiment of the present invention tail-gas after treatment apparatus can also be mounted on body by the device 6 that is fixedly connected.By tail
Gas after-treatment device is mounted between driver's cabin and body by the device that is fixedly connected, and can effectively be slowed down cropper and run
The vibration damage caused by tail-gas after treatment apparatus in journey.
It is connected and fixed between all parts of the embodiment of the present invention tail-gas after treatment apparatus by clip 7, the tail gas
2 outer sheath of exhaust elbow of after-treatment device is equipped with silencer.The all parts of tail-gas after treatment apparatus are carried out by clip
Connection, reduces the use of pipeline, makes the structure of entire tail-gas after treatment apparatus stabilization more compact；The use of silencer is also dropped
Low exhaust noise.
The crawler type cropper of the present embodiment, diesel oxidation catalyst are mounted in the exhaust pipe of engine, lead to peroxidation
The carbon monoxide (CO) and hydrocarbon (HC) that engine is discharged in tail gas should be converted to harmless water (H2And titanium dioxide 0)
Carbon (CO2) device, with diesel engine install additional oxidation catalyst, using noble metals such as platinum (Pt), palladiums (Pd) as catalyst, mainly
The content of the soluble organic species (SolubleOrganicFraction, SOF) in Particulate Emission is reduced to reduction
The discharge of particulate matter (ParticulateMatter, PM), while HC and CO in exhaust, oxidation catalysis can be effectively reduced
Device can remove 90% SOF, so that PM discharge be made to reduce 40%~50%.It can reach the treatment effeciency of HC and CO respectively
To 88% and 68%.Catalytic oxidation technologies have good effect to the SOF in removing diesel particle, i.e., in diesel engine
Exhaust system adds catalytic converter, and SOF occurs under the action ofs the noble metal catalysts such as platinum, rhodium and palladium or rare earth catalyst etc.
Oxidation reaction is converted into CO2And H2O and remove, its usual removal efficiency is up to 80%.The HC and CO in tail gas can be also removed simultaneously
Etc. harmful substances；Particle trap (DieselParticulateFilter, DPF) is that one kind is mounted on diesel engine emissions
Ceramic filter in system, it can be captured before Particulate Emission substance enters atmosphere；DOC and DPF is in the first chamber
Interior can be by the two be fixedly connected sequentially and the shell of the two by welding or adhesive be fixed in first chamber,
Can be will be arranged certain gap between DOC and DPF, in order to be buffered in the gap of gas between, start
Machine gas outlet discharge exhaust gas first pass through DOC by exhaust gas carbon monoxide and hydrocarbon be converted into water and carbon dioxide,
Then the PM via the mixing of DPF Adsorption in the offgas；Scr reactor is the device using SCR principle,
It can be realized and reduction reaction is carried out to the oxynitrides in exhaust gas.
Embodiment 3
A kind of farm machinery of the present embodiment, including body and the tail-gas after treatment apparatus, the exhaust aftertreatment
The air inlet of device is connect with the engine exhaust port of the body.
The farm machinery of the present embodiment installs split type shield on exhaust aftertreatment ontology, is meeting protection requirements
While, infrastructure cost and structure lightened control are taken into account, and it is simple and easy to dismount maintenance.
The farm machinery of the present embodiment can be the various agricultural machinery equipments such as cropper, tractor.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " suitable
The orientation or positional relationship of the instructions such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is orientation based on the figure
Or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limit to the utility model
System.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.The meaning of " plurality " is at least two, such as two in the description of the present invention,
It is a, three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be
Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside element, unless otherwise restricted clearly.For the common skill of this field
For art personnel, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention unless specifically defined or limited otherwise, fisrt feature is in the second feature " on " or " down "
It can be that the first and second features directly contact or the first and second features are by intermediary mediate contact.Moreover, first is special
Sign can be fisrt feature above the second feature " above ", " above " and " above " and be directly above or diagonally above the second feature, or only
Indicate that first feature horizontal height is higher than second feature.Fisrt feature under the second feature " below ", " below " and " below " can be with
It is that fisrt feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
It states and is necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with
It can be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this field
Technical staff can by the feature of different embodiments or examples described in this specification and different embodiments or examples into
Row combination and combination.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
Inside it can make changes, modifications, alterations, and variations to the above described embodiments.
Claims (10)
1. a kind of split type shield is used for tail-gas after treatment apparatus, which is characterized in that including shield body and cover board, institute
The side that shield body is coated on the tail-gas after treatment apparatus is stated, the cover board is removably mounted at the shield body
One end and be located at the end of the tail-gas after treatment apparatus.
2. a kind of split type shield according to claim 1, which is characterized in that the edge of the cover board is equipped with locking edge,
The cover board is fastened on one end of the shield body and locking edge adaptation is crimped on the periphery of the shield body
Side.
3. a kind of split type shield according to claim 2, which is characterized in that the locking edge is set to the cover board and institute
It states at the corresponding position in shield body one end end face.
4. a kind of split type shield according to claim 1, which is characterized in that the shield body is side and one end
Open Semi surrounding type structure, one side open-mouth is connected by screw to respectively on the tail-gas after treatment apparatus, described
Cover board is removably mounted at the open at one end of the shield body.
5. a kind of split type shield according to claim 4, which is characterized in that under the cross section of the shield body is in
The two sides of the trapezium structure of bottom opening, the corresponding bottom open-mouth of the shield body each extend over to form extended segment, the tail
Gas after-treatment device enters from the open-mouth of the shield body in the shield body and by screw and the extension
Section connection.
6. a kind of split type shield according to claim 5, which is characterized in that the cover board be in and the shield body
The compatible trapezoidal plate structure in cross section, the upper bottom of the cover board of trapezoidal structure and two waists are equipped with locking edge, described
Locking edge is adapted to the peripheral side for being crimped on the shield body.
7. a kind of split type shield according to claim 1, which is characterized in that parched if the shield body is equipped with
Stomata.
8. a kind of tail-gas after treatment apparatus, which is characterized in that including any one of exhaust aftertreatment ontology and claim 1 to 7 institute
The split type shield stated.
9. a kind of tail-gas after treatment apparatus according to claim 8, which is characterized in that the exhaust aftertreatment ontology is equipped with
Shock-absorption connecting structure, the shock-absorption connecting structure include circular connector, connecting shaft and resilient cushion, and the connecting shaft is through described
Circular connector setting, the both ends of the connecting shaft be located at the two sides of the circular connector and with the circular connector
Two sides between be respectively crimped with a resilient cushion, at least one end of the connecting shaft with body for connecting.
10. a kind of farm machinery, which is characterized in that including tail-gas after treatment apparatus described in body and claim 8 or 9, institute
The air inlet for stating tail-gas after treatment apparatus is connect with the engine exhaust port of the body.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821671272.4U CN208858432U (en) | 2018-10-15 | 2018-10-15 | A kind of split type shield, tail-gas after treatment apparatus and farm machinery |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821671272.4U CN208858432U (en) | 2018-10-15 | 2018-10-15 | A kind of split type shield, tail-gas after treatment apparatus and farm machinery |
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| CN208858432U true CN208858432U (en) | 2019-05-14 |
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| CN201821671272.4U Active CN208858432U (en) | 2018-10-15 | 2018-10-15 | A kind of split type shield, tail-gas after treatment apparatus and farm machinery |
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| Country | Link |
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| CN (1) | CN208858432U (en) |
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Address after: 261206 No. 192 South Beihai Road, Fangzi District, Shandong, Weifang Patentee after: Weichai leiwo Heavy Industry Co.,Ltd. Address before: 261206 No. 192 South Beihai Road, Fangzi District, Shandong, Weifang Patentee before: LOVOL HEAVY INDUSTRY Co.,Ltd. |
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Address after: 261206 No. 192 South Beihai Road, Fangzi District, Shandong, Weifang Patentee after: Weichai Lovol Intelligent Agricultural Technology Co.,Ltd. Address before: 261206 No. 192 South Beihai Road, Fangzi District, Shandong, Weifang Patentee before: Weichai leiwo Heavy Industry Co.,Ltd. |