CN102996211A - Exhaust device layout of construction machines - Google Patents

Exhaust device layout of construction machines Download PDF

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Publication number
CN102996211A
CN102996211A CN2011102731900A CN201110273190A CN102996211A CN 102996211 A CN102996211 A CN 102996211A CN 2011102731900 A CN2011102731900 A CN 2011102731900A CN 201110273190 A CN201110273190 A CN 201110273190A CN 102996211 A CN102996211 A CN 102996211A
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CN
China
Prior art keywords
treatment
exhaust gas
service tank
recess
layout
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Application number
CN2011102731900A
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Chinese (zh)
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CN102996211B (en
Inventor
三须伸介
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Sumitomo SHI Construction Machinery Co Ltd
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Sumitomo SHI Construction Machinery Co Ltd
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Priority to CN201110273190.0A priority Critical patent/CN102996211B/en
Publication of CN102996211A publication Critical patent/CN102996211A/en
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Publication of CN102996211B publication Critical patent/CN102996211B/en
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Abstract

The invention aims at effectively and flexibly using the redundant space at the upper parts of the rear wall surfaces of working oil tanks so as to arrange an exhaust gas after-treatment device in the space by a mode that operation of construction machines of a hydraulic excavator and the like is not affected and further improve the installation operability and the maintenance operability of the exhaust gas after-treatment device. In order to realize the purpose, the invention provides an exhaust device layout of the construction machines. The exhaust device layout is characterized in that a diesel engine is adopted as a prime engine, the exhaust gas after-treatment device (15) is arranged on an exhaust system of the diesel engine, the upper part of the rear wall surface of the square-shaped working tank (13) which is arranged on a fuel tank (12) in parallel and is formed during overlook is used as a concave part (13a) with the size needed by forming a stepped structure, and the exhaust gas after-treatment device (15) is arranged at the part of the concave part (13a).

Description

The venting gas appliance layout of construction plant
Technical field
The present invention relates to a kind of venting gas appliance layout (layout) of construction plant, relate in particular to a kind of space of effectively applying flexibly the rear surface top of service tank, the exhaust gas after-treatment device is arranged at this space, thus the venting gas appliance layout of the construction plant of the fitting operation of raising exhaust gas after-treatment device and housekeeping operation.
Background technique
In recent years, carry the construction planies such as hydraulic actuated excavator of diesel motor in order to tackle senior exhaust gas restriction, vent systems at diesel motor arranges the exhaust gas after-treatment device, from the exhaust gas of diesel motor by being arranged at the outlet pipe downstream side the NOx reducing catalyst and be expelled in the atmosphere.
With as the relevant prior art of the layout of the above-mentioned exhaust gas after-treatment device in the hydraulic actuated excavator of construction plant, technology shown in Figure 5 is for example arranged.In the figure, on the bearing support 20 at solid of rotation rear portion, the top of hydraulic actuated excavator, be set side by side with the fuel pot 21 of the fuel that has diesel motor and have as the pressure transmission with and the service tank 22 of the working oil that uses.Overlook when observing, fuel pot 21 forms square, service tank 22, be formed with conical surface 22a, 22a with the side wall surface of the opposite side of the interface of fuel pot 21.
And the part than the short transverse neutral position rear surface a little on the lower of service tank 22 is equipped with exhaust gas after-treatment device 23.Be connected with the not shown outlet pipe 24 from diesel motor on this exhaust gas after-treatment device 23.And the rear portion of exhaust gas after-treatment device 23 is connected with baffler 25.Disposing a plurality of required pipe arrangement classes and equipment class near the bearing support 20 below this exhaust gas after-treatment device 23.
In addition, in other prior art, record usually to adopt and use aqueous solution of urea (liquid reducer) as the urea selective reduction type NOx treatment device of above-mentioned exhaust gas after-treatment device.This urea selective reduction type NOx treatment device constitutes as follows, the liquid reducer that has described aqueous solution of urea is connected in outlet pipe with tank by the liquid reducer supply tube, liquid reducer can be supplied to described outlet pipe (for example, referring to Patent Document 1) with the aqueous solution of urea in the tank by the liquid reducer supply pump.
Patent documentation 1: TOHKEMY 2003-20936 communique
In the prior art shown in Figure 5, the exhaust gas after-treatment device is installed on the part than service tank short transverse neutral position rear surface a little on the lower, is disposing a plurality of required pipe arrangement classes and equipment class near the bearing support below this exhaust gas after-treatment device.Therefore, there is bad and so on the problem of the fitting operation of exhaust gas after-treatment device and housekeeping operation.
Therefore, the technical problem that generation must solve in order to be achieved as follows purpose, guarantee the desired volume of service tank, and effectively apply flexibly the thereafter space on wall top, in the mode that does not hinder the construction plant operations such as hydraulic actuated excavator the exhaust gas after-treatment device is arranged at this space, thereby improve fitting operation and the housekeeping operation of this exhaust gas after-treatment device, the object of the invention is to solve this problem.
Summary of the invention
The present invention proposes to achieve these goals, technological scheme 1 described invention provides a kind of venting gas appliance layout of construction plant, adopt diesel motor as prime mover, and be provided with the exhaust gas after-treatment device in the vent systems of this diesel motor, to be set up in parallel the recess that forms required size in the rear surface top of the service tank of fuel pot as hierarchic structure, and described exhaust gas after-treatment device is arranged at this recess part.
According to this structure, can effectively apply flexibly the excess room on the rear surface top of service tank, can not hinder the mode of the operation of the construction planies such as hydraulic actuated excavator, the exhaust gas after-treatment device be arranged at this space.
It is a kind of in technological scheme 1 described invention that technological scheme 2 described inventions provide, and overlooks when observing, and above-mentioned service tank forms the venting gas appliance layout of square construction plant.
According to this structure, even form the recess of required size on the rear surface top of service tank, also can guarantee the desired volume of this service tank.
It is a kind of in technological scheme 1 or 2 described inventions that technological scheme 3 described inventions provide, and corresponding with the recess of the above-mentioned service tank side at least part in the above-mentioned tank for gaseous or liquid substances is formed with the venting gas appliance layout of the construction plant of notch.
According to this structure, can make the space of the setting position periphery of exhaust gas after-treatment device possess further more than needed.
The invention effect
Technological scheme 1 described invention has the following advantages: the space on the rear surface top by effectively applying flexibly service tank, can improve fitting operation and the housekeeping operation of exhaust gas after-treatment device.
Technological scheme 2 described inventions further have the following advantages except the effect of technological scheme 1 described invention: even form recess on the rear surface top of service tank, also can guarantee fully the desired volume of this service tank.
Technological scheme 3 described inventions are except the effect of technological scheme 1 or 2 described inventions, further have the following advantages: the space on the rear surface top of service tank can form further more than needed, and can further improve fitting operation and the housekeeping operation of exhaust gas after-treatment device.
Description of drawings
Fig. 1 is the side view as the hydraulic actuated excavator of construction plant in the venting gas appliance layout of the related construction plant of expression embodiments of the invention.
Fig. 2 is the top solid of rotation plan view partly of the hydraulic actuated excavator of presentation graphs 1.
Fig. 3 is the amplification stereogram of the exhaust gas after-treatment device layout among the embodiment of presentation graphs 1.
Fig. 4 is the amplification stereogram for the recess that the rear surface top that is formed in the embodiment in figure 1 service tank is described.
Fig. 5 is the stereogram of the existing exhaust gas after-treatment device layout of expression.
Symbol description:
The 1-hydraulic actuated excavator,
The 2-lower traveling body,
3-top solid of rotation,
The 4-operator cabin,
The 5-shear leg,
The 6-cantilever,
The 7-scraper bowl,
The 8-engine compartment,
The 9-diesel motor,
The 10-cooling fan,
The 11-heat exchanger,
12,21-fuel pot,
The 12a-notch,
13,22-service tank,
The 13a-recess,
14,20-bearing support,
15,23-exhaust gas after-treatment device,
16,25-baffler,
17,24-outlet pipe,
18-horn shape connector,
The 19-bolt.
Embodiment
In order to be achieved as follows purpose, namely guarantee the desired volume of service tank, and effectively apply flexibly the thereafter space on wall top, in the mode that does not hinder the construction plant operations such as hydraulic actuated excavator the exhaust gas after-treatment device is arranged at this space, thereby improve fitting operation and the housekeeping operation of this exhaust gas after-treatment device, the invention provides a kind of employing diesel motor as prime mover, and the construction plant venting gas appliance layout of exhaust gas after-treatment device is set in the vent systems of this diesel motor, it forms the recess of required size as hierarchic structure by the rear surface top that will be set up in parallel the service tank on fuel pot, and in the part of this recess described exhaust gas after-treatment device is set and realizes.
Embodiment 1
Below, referring to figs. 1 through Fig. 4 the preferred embodiments of the present invention are described.The present embodiment is used hydraulic actuated excavator as construction plant.At first, the structure of the venting gas appliance layout of the related construction plant of the present embodiment described.Top solid of rotation 3 is equipped with pivotally among Fig. 1, on the lower traveling body 2 in hydraulic actuated excavator 1.One sidepiece arranges operator cabin 4 in the place ahead of top solid of rotation 3, and shear leg 5 can be articulated in to pitching the place ahead central part of this top solid of rotation 3.Front end at this shear leg 5 can link up and down cantilever 6 rotationally, at the front end of this cantilever 6 scraper bowl 7 can be installed rotationally up and down.
As shown in Figure 2, form engine compartment 8 at the rear portion of top solid of rotation 3, the sidepiece in this engine compartment 8 is provided with diesel motor 9.Set up cooling fan 10 on this diesel motor 9, the place ahead of this cooling fan 10 is provided with heat exchanger 11.And the other side in engine compartment 8 is set side by side with fuel pot 12 and service tank 13.
Shown in amplifying among Fig. 3 and Fig. 4, fuel pot 12 and service tank 13 are set up in parallel on the bearing support 14 in engine compartment 8, overlook when observing, and service tank 13 forms square, thereafter wall top is made as hierarchic structure, forms the recess 13a of required size by this hierarchic structure.And the part at this recess 13a arranges exhaust gas after-treatment device 15, is connected with baffler 16 at the rear portion of exhaust gas after-treatment device 15.
Be connected with outlet pipe 17 from diesel motor 9 at described exhaust gas after-treatment device 15.And, connect on this outlet pipe 17 from the liquid reducer supply tube of not shown liquid reducer with tank, after liquid reducer was supplied to this outlet pipe 17 with the liquid reducer (aqueous solution of urea) in the tank, exhaust gas after-treatment device 15 played a role as the urea selective reduction type NOx treatment device that adopts aqueous solution of urea.
In the described fuel pot 12 and service tank 13 that is set up in parallel, the top part of institute's adjacency fixes by horn shape connector 18 and a plurality of bolt 19 each other.And, be formed with notch 12a in the bight part with the fuel pot 12 of the recess 13a adjacency of service tank 13.This notch 12a forms for the space of the setting position periphery that makes exhaust gas after-treatment device 15 is possessed more than needed, gets final product so only be formed at corresponding with the recess 13a of service tank 13 sides at least top part.
Then, to as the effect of the venting gas appliance layout of the construction plant of above-mentioned structure describe.Effectively apply flexibly service tank 13 rear surface top have a space more than needed, form the recess 13a of required size on the rear surface top of this service tank 13, part at this recess 13a arranges exhaust gas after-treatment device 15, thereby the part of the rear portion of this exhaust gas after-treatment device 15 and baffler 16 can be outstanding from the rear portion of top solid of rotation 3, just can exhaust gas after-treatment device 15 be set in the mode of the operation that do not hinder hydraulic actuated excavator 1.
And service tank 13 forms square when overlooking observation, thereby even forms the desired volume that the recess 13a of required size also can guarantee service tank 13 on the rear surface top of this service tank 13.In addition, be formed with notch 12a in the bight part with the fuel pot 12 of the recess 13a adjacency of service tank 13, thereby the space that can make the setting position periphery of exhaust gas after-treatment device 15 is possessed further more than needed, makes the fitting operation etc. of this exhaust gas after-treatment device 15 become easy.
As mentioned above, in the venting gas appliance layout of the related construction plant of the present embodiment, effectively apply flexibly the space on the rear surface top of service tank 13, form the recess 13a of required size on the rear surface top of this service tank 13, part at this recess 13a arranges exhaust gas after-treatment device 15, thereby can improve fitting operation and the housekeeping operation of exhaust gas after-treatment device 15.
Shown in Figure 5 as described, on the side wall surface of service tank, do not form the conical surface, overlook when observing service tank 13 form square, thereby even form recess 13a on the rear surface top of this service tank 13, service tank 13 also can be guaranteed its desired volume fully.
Form notch 12a in the bight part with the fuel pot 12 of the recess 13a adjacency of service tank 13, thereby the space on the rear surface top of service tank 13 forms further more than needed, can further improve fitting operation and the housekeeping operation of exhaust gas after-treatment device 15.
In addition, only otherwise breaking away from purport of the present invention just can impose various distortion to the present invention, and the present invention also relates to the example of this distortion in the nature of things.
Utilizability on the industry
Also can be applied to construction plant beyond the hydraulic actuated excavator, indispensable following functions: the desired volume of guaranteeing service tank etc., and effectively apply flexibly the thereafter space on wall top, mode with the operation that do not hinder hydraulic actuated excavator is arranged at this space with the exhaust gas after-treatment device, thereby improves fitting operation and the housekeeping operation of this exhaust gas after-treatment device.

Claims (3)

1. the venting gas appliance layout of a construction plant adopts diesel motor as prime mover, and in the vent systems of this diesel motor the exhaust gas after-treatment device is set, and the venting gas appliance layout of this construction plant is characterised in that,
The recess of required size is formed as hierarchic structure at the rear surface top that is set up in parallel in the service tank of fuel pot, and described exhaust gas after-treatment device is arranged at the part of this recess.
2. the venting gas appliance layout of construction plant as claimed in claim 1 is characterized in that,
Overlook when observing, above-mentioned service tank forms square.
3. the venting gas appliance layout of construction plant as claimed in claim 1 or 2 is characterized in that,
Corresponding with the recess of above-mentioned service tank side at least part in above-mentioned fuel pot is formed with notch.
CN201110273190.0A 2011-09-15 2011-09-15 The exhaust device layout of construction plant Active CN102996211B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201110273190.0A CN102996211B (en) 2011-09-15 2011-09-15 The exhaust device layout of construction plant

Publications (2)

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CN102996211A true CN102996211A (en) 2013-03-27
CN102996211B CN102996211B (en) 2016-01-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104652520A (en) * 2013-11-20 2015-05-27 神钢建机株式会社 Construction machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100071986A1 (en) * 2008-09-19 2010-03-25 Kobelco Construction Machinary Co., Ltd. Construction machine
CN101835963A (en) * 2007-10-22 2010-09-15 神钢建设机械株式会社 Construction machine
JP2011157721A (en) * 2010-02-01 2011-08-18 Kobe Steel Ltd Construction machinery
CN103180517A (en) * 2010-10-29 2013-06-26 神钢建设机械株式会社 Construction machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101835963A (en) * 2007-10-22 2010-09-15 神钢建设机械株式会社 Construction machine
US20100071986A1 (en) * 2008-09-19 2010-03-25 Kobelco Construction Machinary Co., Ltd. Construction machine
JP2010071005A (en) * 2008-09-19 2010-04-02 Kobelco Contstruction Machinery Ltd Construction machine
JP2011157721A (en) * 2010-02-01 2011-08-18 Kobe Steel Ltd Construction machinery
CN103180517A (en) * 2010-10-29 2013-06-26 神钢建设机械株式会社 Construction machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104652520A (en) * 2013-11-20 2015-05-27 神钢建机株式会社 Construction machine

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