CN105735384A - Excavator - Google Patents
Excavator Download PDFInfo
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- CN105735384A CN105735384A CN201510982955.6A CN201510982955A CN105735384A CN 105735384 A CN105735384 A CN 105735384A CN 201510982955 A CN201510982955 A CN 201510982955A CN 105735384 A CN105735384 A CN 105735384A
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- Prior art keywords
- swing arm
- tank
- foot pin
- inorganic agent
- excavator
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Exhaust Gas After Treatment (AREA)
- Component Parts Of Construction Machinery (AREA)
Abstract
The subject of the invention is to provide an excavator which can performs extraction and insertion of a boom pin without the dismounting of a processing agent canister. The excavator is provided with: an engine (8); a fuel canister (19) which stores a fuel supplied to the engine (8); a boom fin (100) which supports the boom to rotate with respect to a boom support rack (17); and a processing agent canister (20) which stores up a processing agent for processing engine waste gas, wherein the processing agent canister (20) is configured to be near a front side compared with the boom pin (100).
Description
Technical field
The application advocates the priority of the Japanese patent application the 2014-266376th based on December in 2014 application on the 26th.The full content of this Japanese publication is by with reference to being applied in this specification.
The present invention relates to the excavator of a kind of inorganic agent tank possessing and accumulating exhaust gas treating agent.
Background technology
As the excavator of engineering machinery is equipped with diesel motor mostly as power source.In recent years, develop and the emission-control equipment corresponding relative to the high level waste gas of diesel motor restriction regulation.This emission-control equipment is also equipped on the excavator being equipped with diesel motor.
Emission-control equipment is arranged at the gas extraction system of diesel motor, and is processed to convert the waste gas meeting waste gas restriction regulation to the waste gas of diesel motor.Specifically, for instance, the waste gas from diesel motor is discharged in air by the NOx reducing catalyst in the downstream that is arranged at exhaustor.
As above-mentioned emission-control equipment, the NOx being used mostly the carbamide selective reduction type utilizing aqueous solution of urea (liquid reducer) processes device.Aqueous solution of urea lodges in metal liquid reducer tank, and liquid reducer tank supplies pipe by liquid reducer and is connected to exhaustor.Aqueous solution of urea in liquid reducer tank supplies pump by liquid reducer and is supplied in the exhaustor (such as, with reference to Patent Document 1) of diesel motor.
Patent documentation 1: Japanese Unexamined Patent Publication 2013-160005 publication
When liquid reducer tank is arranged at the upper rotation of excavator, sometimes with the space of the side of swing arm bearing support.That is, from the viewpoint of the restriction in space, the convenience of supply, it is preferable that at the right front portion configuration liquid reducer tank of the upper rotation of excavator.
But, when this position arranges liquid reducer tank, when carrying out when pulling and pushing operation of swing arm foot pin for maintenance overhaul, sometimes have to unload liquid reducer tank.
Summary of the invention
Therefore, it is an object of the invention to provide a kind of liquid reducer tank that can not unload and just carry out the excavator pulling and pushing operation of swing arm foot pin.
To achieve these goals, according to an embodiment of the present invention, it is provided that a kind of excavator, this excavator possesses: engine；Fuel tank, stores the fuel supplied to described engine；Swing arm foot pin, by swing arm relative to swing arm branching bolster supporting for rotating；And inorganic agent tank, accumulate inorganic agent that engine exhaust is processed, wherein, described inorganic agent tank configures than the more forward side of described swing arm foot pin.
The effect of invention
According to disclosed embodiment, it is possible to that does not unload that inorganic agent tank just carries out swing arm foot pin pulls and pushes operation.
Accompanying drawing explanation
Fig. 1 is the left side view of excavator.
Fig. 2 is the right side view of excavator.
Fig. 3 is the top view of the upper rotation of excavator viewed from above.
Fig. 4 indicates that the figure of the structure of emission-control equipment.
Fig. 5 is the side view of a part for inorganic agent tank and fuel tank.
Fig. 6 is the axonometric chart of a part for inorganic agent tank and fuel tank.
The explanation of symbol
null1-lower running body，2-upper rotation，2a-slewing frame，3-control cabinl pulpit，4-swing arm，5-dipper，6-scraper bowl，7-engine chamber，8-diesel motor，9-exhaustor，10-emission-control equipment，12-cooling fan，13-heat exchanger unit，17-swing arm bearing support，17L、17R-support，19-fuel tank，20-carbamide water pot，21-hydraulic pump，40-inorganic agent cover，50-step lid，60-engine control module，61-turbocharger，63-air purifier，64-suction nozzle，65-charge air cooler，66-diesel particulate filter，67-selective reduction catalyst，68-urea water injection valve，69-urea water service，70-urea water supply pump，71-filter，72、73-NOx sensor，74-urea water headroom sensor，75-waste gas controller，76-excavator controller，77-monitor，80-pipe arrangement，80a-part 1，80b-part 2，80c-third portion，80d-the 4th part，82-compound pipe arrangement，83-band adiabator connector portions，90-charging port，91-liquidometer，92-tank reinforcement，93-charging port support，94-tank bracket，94a-upper surface，94b-inclined plane，Plate is strengthened on 96-top，98a、98b-sidepiece strengthens plate，100-swing arm foot pin，102-spline part，104-Saddle，110-SCR system，120-service tank，130-is for fat device，140-oil feed pump.
Detailed description of the invention
With reference to accompanying drawing, one embodiment of the present invention is illustrated.
Fig. 1 is the left side view of the excavator of the example as the engineering machinery based on an embodiment.Fig. 2 is the right side view of excavator.
As shown in Figures 1 and 2, excavator has lower running body 1, upper rotation 2, control cabinl pulpit 3, swing arm 4, dipper 5 and scraper bowl 6.Upper rotation 2 is equipped on lower running body 1 via slew gear (not shown).The front portion, left side of upper rotation 2 is provided with control cabinl pulpit 3.One end of swing arm 4 is mounted to rotate in the front, center of upper rotation 2.Dipper 5 is mounted to rotate in the leading section of swing arm 4.Scraper bowl 6 as end attachment is mounted to rotate in the leading section of dipper 5.Can substitute for the scraper bowl 6 as excavation attachment, end attachment as quartering hammer, disintegrating machine is installed in the leading section of dipper 5.
Fig. 3 indicates that the top view of the schematic configuration of upper rotation 2.As it is shown on figure 3, be formed with engine chamber 7 (representing with single dotted broken line) at the rear portion of upper rotation 2.Diesel motor 8 it is provided with in engine chamber 7.SCR system 110 (selecting catalyst restoring system) it is configured with as shown in Figure 1 on diesel motor 8.SCR system 110 comprises emission-control equipment 10 described later.It is configured with hydraulic pump 21 in the downside of SCR system 110.Diesel motor 8 is provided with cooling fan 12, is provided with the heat exchanger unit 13 comprising radiator in the front of cooling fan 12.
It is configured with air purifier 63 (air filter) in the side (being front side as excavator) of heat exchanger unit 13.Air purifier 63 is connected to diesel motor 8 via suction nozzle 64.It is supplied in diesel motor 8 by suction nozzle 64 by air purifier 63 filtered air.
Diesel motor 8 is connected to the exhaustor 9 for discharging engine exhaust (hereinafter referred to as " waste gas ").It is provided with in the end in the downstream of exhaustor 9 and limits, with high level waste gas, the emission-control equipment 10 that regulation is corresponding.In present embodiment, as emission-control equipment 10, the NOx of the carbamide selective reduction type utilizing aqueous solution of urea (liquid reducer) is used to process device.To carry out aftermentioned about emission-control equipment 10.
The left side that control cabinl pulpit 3 is configured at upper rotation 2 is anterior.Here, in this manual, the front portion of upper rotation 2 is provided with the part of the side of swing arm 4 when referring to the central observation from upper rotation.Further, the direction that when front refers to the central observation from upper rotation, swing arm 4 extends.Further, left side becomes left part when referring in upper rotation 2 towards front (direction that swing arm 4 extends).Further, right side becomes right part when referring in upper rotation 2 towards front (direction that swing arm 4 stretches).
The service tank 120 of working oil being stored in hydraulic system to use it is configured with at the rear of control cabinl pulpit 3.Above-mentioned emission-control equipment 10 it is configured with at the rear of service tank 120.
On the other hand, the fuel tank 19 storing the diesel motor fuel such as light oil it is configured with in the front side of engine chamber 7.The diesel motor fuel being stored in fuel tank 19 is supplied in diesel motor 8 via fuel supplying tubing (not shown).
The carbamide water pot (inorganic agent tank) 20 storing the inorganic agent (aqueous solution of urea (liquid reducer)) that emission-control equipment 10 uses it is configured with in the front side of fuel tank 19.The inorganic agent pump 20b being stored in the inorganic agent of carbamide water pot 20 midway by being arranged at inorganic agent supplying tubing 20a is supplied in emission-control equipment 10.It addition, the example that aqueous solution of urea (liquid reducer) is inorganic agent, it is possibility to have other inorganic agents or the situation using other processing methods to carry out is used as liquid reducer.
Swing arm 4 can be rotatably supported at the swing arm bearing support 17 firmly fixed in the front center portion of the slewing frame 2a of upper rotation 2.More specifically, swing arm 4 is to be clipped in the state between the right side support 17R and left side brackets 17L of swing arm bearing support 17, it is supported on and runs through right side support 17R, swing arm 4, left side brackets 17L and the swing arm foot pin 100 that arranges.
At this, with reference to Fig. 4, above-mentioned emission-control equipment 10 is described in detail.
Fig. 4 indicates that the figure of the structure example of emission-control equipment 10.In present embodiment, the waste gas discharged from diesel motor 8 is purified by emission-control equipment 10.Diesel motor 8 is controlled by engine control module 60 (hereinafter referred to as " ECM ").
The waste gas discharged from diesel motor 8 flows to exhaustor 9 by turbocharger 61.Further, waste gas processes device 10 from exhaustor 9 inflow exhaust gas.In emission-control equipment 10, waste gas is discharged in air after being cleaned.
On the other hand, the air that sucks imported in suction nozzle 64 by air purifier 63 by turbocharger 61 and is contained in the charge air cooler 65 of heat exchanger unit and is supplied in diesel motor 8.
Diesel particulate filter 66 as the particulate material in the trapping waste gas in the 1st pump-down process portion and the reduction as the 2nd pump-down process portion are removed the selective reduction catalyst 67 of the NOx in waste gas and are arranged in series in exhaustor 9.As the 1st pump-down process portion, except above-mentioned diesel particulate filter 66, it is also possible to arrange diesel oxidation catalyst (DOC:DieselOxidationCatalyst).
Selective reduction catalyst 67 by accept liquid reducer supply and continuously reduction waste gas in NOx remove NOx.In the present embodiment from the viewpoint of operation ease, use urea water (aqueous solution of urea) as liquid reducer.But, if the inorganic agent of NOx can be reduced continuously, then it is not limited to urea water (aqueous solution of urea), it is possible to use other inorganic agents.
The upstream side of the selective reduction catalyst 67 in exhaustor 9, is provided with the urea water injection valve 68 for supplying urea water to selective reduction catalyst 67.Urea water injection valve 68 is connected to carbamide water pot (inorganic agent tank) 20 via urea water service 69.
Urea water service 69 is provided with urea water supply pump 70.Supply at carbamide water pot 20 and urea water and be provided with filter 71 between pump 70.The urea water lodged in carbamide water pot 20 is supplied in urea water injection valve 68 by urea water supply pump 70.Further, urea water injection from the upstream position of the urea water injection valve 68 selective reduction catalyst 67 exhaustor 9 to exhaustor 9.
It is supplied in selective reduction catalyst 67 from the urea water of urea water injection valve 68 injection.The urea water being supplied to is hydrolyzed in selective reduction catalyst 67 and generates ammonia.The ammonia generated in selective reduction catalyst 67 to waste gas in contained NOx reduce.Thus, the waste gas discharged from diesel motor 8 is cleaned.
1NOx sensor 72 is disposed in the upstream side of urea water injection valve 68.2NOx sensor 73 is disposed in the downstream of selective reduction catalyst 67.1NOx sensor 72 and 2NOx sensor 73 detect the concentration of NOx contained in the waste gas on respective equipping position.
Carbamide water pot 20 is equipped urea water headroom sensor 74.Urea water headroom sensor 74 detects the surplus of the urea water in carbamide water pot 20.
Above-mentioned 1NOx sensor 72 and 2NOx sensor 73, urea water headroom sensor 74, urea water injection valve 68 and urea water supply pump 70 are connected to waste gas controller 75.Waste gas controller 75, according to the NOx concentration detected by 1NOx sensor 72 and 2NOx sensor 73, carries out emitted dose control in the way of to be sprayed the urea water of appropriate amount by urea water injection valve 68 and urea water supply pump 70.
The waste gas controller 75 surplus according to the urea water exported from urea water headroom sensor 74, calculates the surplus ratio relative to the total measurement (volume) of carbamide water pot 20 of urea water.In present embodiment, the surplus of urea water is defined as urea water surplus ratio relative to the ratio of the total measurement (volume) of carbamide water pot 20.Such as, urea water surplus residues in carbamide water pot 20 than the urea water of the 50% half capacity representing carbamide water pot 20.
Waste gas controller 75 is connected to the ECM60 of the control carrying out diesel motor 8 by communication means.Further, ECM60 is connected to excavator controller 76 by communication means.
About the various information of the emission-control equipment 10 that waste gas controller 75 has, excavator controller 76 also can have.ECM60, waste gas controller 75 and excavator controller 76 comprise CPU, RAM, ROM, input/output port, storage device etc. respectively.
Excavator controller 76 is connected to monitor 77 (display device).Monitor 77 shows information, data that warning, service condition show etc..
Emission-control equipment 10 has the antifreeze mechanism freezed preventing carbamide water pot 20 and urea water service 69.In the present embodiment, antifreeze mechanism utilizes the engine cooling water of the diesel motor 8 by pipe arrangement 80.Specifically, diesel motor 8 has just been carried out cooling after engine cooling water maintain the high temperature of comparison and arrive part 2 80b by the part 1 80a of pipe arrangement 80.Part 2 80b is connected to a part for the pipe arrangement 80 of the outer surface of carbamide water pot 20.Engine cooling water, when flowing through part 2 80b, supplies heat to carbamide water pot 20 and urea water therein.Afterwards, engine cooling water, when flowing through along the third portion 80c of the pipe arrangement 80 of urea water service 69 setting, supplies heat to urea water service 69 and urea water therein.Afterwards, discharge heat and become the engine cooling water of relatively low temperature and arrive heat exchanger unit 13 (reference Fig. 3) by the 4th part 80d of pipe arrangement 80.So, antifreeze mechanism utilizes engine cooling water to supply heat to carbamide water pot 20 and urea water service 69, prevents freezing of carbamide water pot 20 and urea water service 69 with this.
Then, except Fig. 3, configuration structure referring also to Fig. 4 and Fig. 5 carbamide water pot 20 to storing the fuel tank 19 of diesel motor fuel and stored urea water illustrates.Fig. 5 is the side view of a part for carbamide water pot and fuel tank.Fig. 6 is the axonometric chart of a part for carbamide water pot and fuel tank.
As it is shown on figure 3, relative to the installation site of swing arm 4, be configured with control cabinl pulpit 3 and service tank 120 in left side.Further, fuel tank 19 is configured at right side relative to the installation site of swing arm 4.Therefore, it is possible to guarantee the space for configuring carbamide water pot 20 in the front side of fuel tank 19.That is, in the present embodiment, as it is shown on figure 3, carbamide water pot 20 is configured at the front of right side and fuel tank 19 in upper rotation 2 relative to the installation site of swing arm 4.
The figure of configuration structure of fuel tank 19, carbamide water pot 20 etc. is represented it addition, Fig. 3 is outline.Therefore, Fig. 3 represents that the state eliminating inorganic agent cover 40 and step lid 50, described inorganic agent cover 40 are used for covering carbamide water pot 20, and described step lid 50 is for filling up the step difference between fuel tank 19 and inorganic agent cover 40.
At this, as it is shown on figure 3, the anterior central authorities in upper rotation 2 are fixed with the swing arm bearing support 17 with pair of right and left support 17L, 17R.It is supported to can rotate by support 17L, 17R.More specifically, one end of swing arm 4 is configured between support 17L and 17R, swing arm foot pin 100 runs through support 17L, swing arm 4 and support 17R and arranges.
Supporting structure according to swing arm 4 as above, when carrying out maintenance overhaul to swing arm 4, it is necessary to pulls out swing arm foot pin 100 and is unloaded by swing arm 4 slave arm bearing support 17 (support 17L, 17R).It is configured with control cabinl pulpit 3, it is impossible to pull out swing arm foot pin 100 towards left side in the left side of swing arm bearing support 17.Accordingly, it would be desirable to guarantee space on the right side extending direction of swing arm foot pin 100, swing arm foot pin 100 can be transferred to towards right side (being configured with fuel tank 19 and the side of carbamide water pot 20).
Therefore, in present embodiment, it is integrally located at more forward than swing arm foot pin 100 as it is shown in figure 5, carbamide water pot 20 is configured to carbamide water pot 20.Thus, when being transferred to by swing arm foot pin 100 slave arm bearing support 17, carbamide water pot 20 will not become obstacle.When being provided with inorganic agent cover 40, it is preferable that can be configured at than the more forwardly of mode of swing arm foot pin 100 to configure carbamide water pot 20 with inorganic agent cover 40 entirety.
Further, equally, as it is shown in figure 5, determine the shape of fuel tank 19 in the way of the upper surface 19a-1 of fuel tank 19 becomes than the less position of swing arm foot pin 100.Thus, when being transferred to by swing arm foot pin 100 slave arm bearing support 17, fuel tank 19 will not become obstacle.
It addition, as shown in Figures 5 and 6, on the support 17R of swing arm bearing support 17, as being used for preventing the mechanism of the rotation of Saddle 100, it is provided with spline part 102 and Saddle 104.Spline part 102 passes through solder bond in swing arm foot pin 100.On the other hand, Saddle 104 is fixed relative to support 17R.Further, spline part 102 via packing ring and is secured by bolts in Saddle 104.
In the mounting structure of swing arm foot pin 100 as above, when slave arm bearing support 17 unloads downward moving arm foot pin 100, first unload spline part 102 is fixed on Saddle 104 bolt and packing ring.Thus, spline part 102 can separate from Saddle 104.Further, swing arm foot pin 100 is dialed out to the position not disturbing Saddle 104 together with spline part 102.Afterwards, make swing arm foot pin 100 rotate turntable 102 to end together with spline part 102 and do not disturb the position of fuel tank 19.Further, by further to swing arm foot pin 100 and spline part 102 slave arm bearing support 17 (support 17R) is transferred to, it is possible to swing arm foot pin 100 slave arm bearing support 17 is unloaded completely.
At this, with reference to Fig. 5 and Fig. 6, the structure of carbamide water pot 20 is illustrated.
There is the can body 20a being generally rectangular in cross-section shape and generally substantially box-formed shape as the carbamide water pot 20 of carbamide water pot.Front upper at can body 20a is formed with inclined plane 20b.Inclined plane 20b is by along with tilting in the way of swinging to rear side upward.It is formed above upper surface 20c at can body 20a.
Inclined plane 20b is provided with feeding mouth 22.Charging port 90 is detachably installed on feeding mouth 22.Urea water is fed in can body 20a from feeding mouth 22 via charging port 90 when supply.
Further, inclined plane 20b is provided with liquidometer 91.Liquidometer 91 shows the water level (liquid level) of the urea water in can body 20a.Worker is by observing liquidometer 91, it is possible to is visually confirmed to be urea water and fills up the situation of carbamide water pot 20, and is prevented from urea water spilling.
A sidepiece in the right of inclined plane 20b is formed with recess 20d (with reference to Fig. 6).Recess 20d when carbamide water pot 20 is loaded and unloaded relative to tank reinforcement 92 as handle part (handle) function.
Further, drain plug (not shown) it is provided with in the bottom of carbamide water pot 20.Drain plug is removed when discharging the urea water residuing in carbamide water pot 20.
Charging port 90 utilizes charging port support 93 to be installed on carbamide water pot 20.Charging port support 93 is plate-shaped member and is formed by metal or other materials (such as resin etc.).Charging port support 93 is fixed on carbamide water pot 20 by secure components such as bolts.Charging port 90 is also installed on carbamide water pot 20 thus.
The supplementing of urea water is installed on the state of carbamide water pot 20 with charging port 90 and carries out.When supplementary urea water, cap 22a is unloaded from charging port 90, and inject urea water from the outboard end of charging port 90.Thus, urea water adds in carbamide water pot 20.
The resinous carbamide water pot 20 with said structure is contained in tank accommodation container 15.Tank holds container 15 and has tank reinforcement 92 and tank bracket 94.Further, the side holding container 15 at tank is provided with top reinforcement plate 96 and sidepiece reinforcement plate 98a, 98b, thus tank holds container 15 and strengthened.
Tank reinforcement 92 is such as formed by the metal materials such as ferrum or other materials (intensity is higher than the material of the material of carbamide water pot 20).Further, tank reinforcement 92 is configured on tank lift-launch plate (not shown).
The top of carbamide water pot 20 that tank bracket 94 is installed on tank reinforcement 92 to install.In present embodiment, tank bracket 94 profit is bolted to tank reinforcement 92.So, when tank bracket 94 is fixed on tank reinforcement 92, carbamide water pot 20 becomes the state being contained in tank accommodation container 15.
Tank bracket 94 possesses horizontally extending upper surface 94a and the inclined plane 94b of the inclined plane 20b along carbamide water pot 20.The inclined plane 20b that inclined plane 94b extrudes carbamide water pot 20 from above by the state to be contained in by carbamide water pot 20 in tank accommodation container 15 keeps carbamide water pot 20.
Therefore, it is kept with the state being contained in tank reinforcement 92 also by tank bracket 94 even if carbamide water pot 20 does not utilize bolt etc. to fix in tank reinforcement 92.Thus, carbamide water pot 20 is reliably kept by tank accommodation container 15 (tank reinforcement 92, tank bracket 94) and is strengthened.
Further, the inclined plane 94b of tank bracket 94 has opening in the part corresponding with liquidometer 91.Liquidometer 91 is exposed to outside via this opening.
As represented with single dotted broken line in Figure 5, the carbamide water pot 20 agent cover 40 that is processed covers.Even if inorganic agent cover 40 is formed with firm steel plate in the way of having people to take advantage of herein above without deformation.In inorganic agent cover 40, the front of carbamide water pot 20 is formed with space.Have such as fat device 130, oil feed pump 140 etc. at this space.Further, the space in inorganic agent cover 40, the instrument etc. needed for maintenance overhaul can be accommodated.
It addition, be provided with 2 shutter door on inorganic agent cover 40.One in shutter door is the door opened when urea water is fed to carbamide water pot 20, is arranged at the position relative with feeding mouth 22.Another shutter door is close to the door opened during for fat device 130, oil feed pump 140, is arranged at for fat device 130, the top of oil feed pump 140 or front.
As it has been described above, the upper surface 19a-1 of fuel tank 19 becomes the position lower than swing arm foot pin 100.This is in order to when being transferred to by swing arm foot pin 100 slave arm bearing support 17, it is to avoid fuel tank 19 becomes obstacle.
It addition, in present embodiment, in ratio swing arm foot pin 100 more posteriorly side, the upper surface of fuel tank 19 uprises and becomes upper surface 19a-2, the upper surface of fuel tank 19 becomes 2 rank, but without necessarily the upper surface of fuel tank 19 being set to 2 rank.Such as, the whole upper surface of fuel tank 19 can lower than the height of swing arm foot pin 100.
Fuel tank 19 is provided with the charging port 19b (inlet) for injecting fuel.In present embodiment, the upper surface of fuel tank 19 is set to 2 rank, and therefore charging port 19b is arranged at the upper surface 19a-2 of higher single order.Further, the step surface 19c of the part becoming 2 rank of fuel tank 19 is provided with fuel gage 19d.By fuel gage 19d is arranged on this position, when injecting fuel in fuel tank 19, it is possible to be visually confirmed to be fuel tank 19 and filled up by fuel.Further, as it is shown in figure 5, the charging port 19b of fuel tank 19 is arranged in the position different from swing arm foot pin 100, therefore obstacle will not be become at charging port 19b when pulling and pushing operation of swing arm foot pin 100.
In the present embodiment, the upper surface 40a of above-mentioned inorganic agent cover 40 becomes higher than the upper surface 19a-1 of fuel tank 19, forms step difference.Therefore, in order to eliminate this step difference, it is preferable that as arranged step lid 50 as shown in single dotted broken line in Figure 5.Even if step lid 50 is preferably taken advantage of with such as people and is made without the such as firm steel plate deformed herein above.
As above, the excavator based on present embodiment possesses: diesel motor 8；Fuel tank 19, stores the fuel to diesel motor 8 supply；Swing arm foot pin 100, supports swing arm 4 as rotating relative to swing arm bearing support 17；And carbamide water pot 20, accumulate the inorganic agent that engine exhaust is processed, wherein, carbamide water pot 20 is configured at than the more forward side of swing arm foot pin 100.Therefore, when being transferred to by swing arm foot pin 100 slave arm bearing support 17, carbamide water pot 20 will not become obstacle, it is possible to easily carries out the dial-out operation of swing arm foot pin 100.
Further, when arranging the inorganic agent cover 40 covering carbamide water pot 20, inorganic agent cover 40 entirety is also arranged to than the more forward side of swing arm foot pin 100.Thus, even if the upper surface of inorganic agent cover 40 is higher than swing arm foot pin 100, when being transferred to by swing arm foot pin 100 slave arm bearing support 17, fuel tank 19 is without becoming obstacle, it is possible to easily carry out the dial-out operation of swing arm foot pin 100.
Further, in the way of the upper surface 19a-1 of fuel tank 19 position become lower than swing arm foot pin 100, determine the shape of fuel tank 19.Thus, when being transferred to by swing arm foot pin 100 slave arm bearing support 17, fuel tank 19 will not become obstacle, it is possible to easily carries out the dial-out operation of swing arm foot pin 100.
Claims (6)
1. an excavator, it possesses:
Engine；
Fuel tank, stores the fuel supplied to described engine；
Swing arm foot pin, by swing arm relative to swing arm branching bolster supporting for rotating；And
Inorganic agent tank, accumulates the inorganic agent that engine exhaust is processed,
Described inorganic agent tank configures than the more forward side of described swing arm foot pin.
2. excavator according to claim 1, wherein,
Described excavator also has the inorganic agent cover covering described inorganic agent tank,
The upper surface of described inorganic agent cover is higher than described swing arm foot pin.
3. excavator according to claim 1, wherein,
At least at the upper surface of the described fuel tank of the side of the described swing arm foot pin upper surface lower than described inorganic agent tank, and lower than the position of described swing arm foot pin.
4. excavator according to any one of claim 1 to 3, wherein,
The upper surface of described inorganic agent tank is lower than described swing arm foot pin.
5. the excavator according to claim 3 or 4, wherein,
The upper surface of described fuel tank is 2 stage structures.
6. the excavator according to any one of claim 3 to 5, wherein,
Described excavator also has step lid, and described step lid at least covers the upper surface of the described fuel tank of the side of described swing arm foot pin.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-266376 | 2014-12-26 | ||
| JP2014266376A JP6541972B2 (en) | 2014-12-26 | 2014-12-26 | Shovel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105735384A true CN105735384A (en) | 2016-07-06 |
Family
ID=56296299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510982955.6A Pending CN105735384A (en) | 2014-12-26 | 2015-12-24 | Excavator |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6541972B2 (en) |
| CN (1) | CN105735384A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108699935A (en) * | 2016-08-02 | 2018-10-23 | 日立建机株式会社 | The exhaust gas purification system of engineering machinery |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6765784B2 (en) * | 2015-02-04 | 2020-10-07 | 住友建機株式会社 | Excavator |
| JP6840557B2 (en) * | 2017-02-06 | 2021-03-10 | 住友建機株式会社 | Excavator |
| JP6619378B2 (en) * | 2017-03-30 | 2019-12-11 | ヤンマー株式会社 | Tracked tractor |
| JP6965804B2 (en) * | 2018-03-28 | 2021-11-10 | コベルコ建機株式会社 | Construction machinery |
| JP7073953B2 (en) * | 2018-07-12 | 2022-05-24 | コベルコ建機株式会社 | Construction machinery |
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| JP5615763B2 (en) * | 2011-06-14 | 2014-10-29 | 日立建機株式会社 | Construction machinery |
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| CN108699935A (en) * | 2016-08-02 | 2018-10-23 | 日立建机株式会社 | The exhaust gas purification system of engineering machinery |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2016125242A (en) | 2016-07-11 |
| JP6541972B2 (en) | 2019-07-10 |
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