CN102444155B

CN102444155B - Construction machine

Info

Publication number: CN102444155B
Application number: CN201110313834.4A
Authority: CN
Inventors: 钟科俊; 曹作龙; 何琴; 苏永志
Original assignee: LIUGONG CHANGZHOU EXCVAVTOR CO Ltd; Guangxi Liugong Machinery Co Ltd
Current assignee: Guangxi Liugong Machinery Co Ltd; Liugong Changzhou Machinery Co Ltd; Liuzhou Liugong Excavators Co Ltd
Priority date: 2011-10-17
Filing date: 2011-10-17
Publication date: 2014-01-15
Anticipated expiration: 2031-10-17
Also published as: CN102444155A

Abstract

The invention discloses a construction machine. The construction machine solves the problems that when a urea spraying device is additionally arranged in an existing rotary type construction machine, part of devices of the machine need to be reduced so that original partial functions are lost, or the dimension is enlarged at the cost of reduction of operability of the machine. The construction machine comprises an upper portion mechanism and a lower portion mechanism. The lower portion mechanism comprises a main structure and walking mechanisms fixed on two sides of the main structure. The upper portion mechanism is rotatably installed on the main structure, a power system with a vent system is installed on the upper portion mechanism, the urea spraying device including a urea solution container is installed on the vent system, the urea solution container is arranged on the lower portion mechanism and connected to a urea solution requiring component arranged on the upper portion mechanism through a pipeline and a center joint. The urea solution container which is large in volume is arranged on the lower portion mechanism, the space of the upper portion mechanism is not occupied, and accordingly the urea spraying device can be installed on the existing construction machine on the premise that the dimension is not enlarged and certain components are not reduced.

Description

Construction implement

Technical field

The present invention relates to a kind of upper mechanism and be rotatably installed in the construction implement in lower mechanisms.

Technical background

For swinging construction implement, as hydraulic crawler excavator, conventionally by a lower mechanisms and a rotatable upper mechanism being arranged in lower mechanisms, formed.Wherein lower mechanisms comprises a main structure, and in main structure both sides fixed installation walking mechanism, main structure generally includes mainboard, lower mainboard and connects the vertical clapboard of upper mainboard and lower mainboard.Upper mechanism has been installed equipment, power unit, operational control unit, driver's cabin and miscellaneous equipment as hydraulic oil container, fuel tank etc.

The central area of plane in main structure, placed a pivoting support for being connected with superstructure, in supporting in revolution, be provided with in the heart Yi Ge hole for having placed a center sub that has comprised inner cylinder and outer cylinder, make the central axis of center sub and the central axis of pivoting support consistent, inner cylinder and outer cylinder be a kind of rotationally with unconfined insertion matching relationship, between inner cylinder and outer cylinder, be provided with passage, the two ends of passage lay respectively on inner cylinder and outer cylinder, be used for connecting exterior line, wherein inner cylinder is fixedly connected with upper mechanism, outer cylinder and lower mechanisms are fixed, the mechanism that they can and be fixedly connected with separately the motion for the relative rotation pipeline between upper mechanism and lower mechanisms is coupled together together.

Along with some countries and regions have been put into effect Abgasgesetz in succession, pollutant to motor discharge is controlled more and more strictlyer, the manufacturer of main engine plants and motor has also taked some measures to cut down or eliminate these pollutants to the exhaust system of motor, to reach the requirement of Abgasgesetz.One of them measure is in exhaust system, to increase urea-spray device, in needs, in waste gas, spray urea liquid, make oxynitrides (NOx) in waste gas and the urea generation chemical reaction in urea liquid, in the tail gas of elimination or reduction machine, the content of oxynitrides, reduces the injury to environment.Urea-spray device has generally included the equipment such as urea liquid container, batchmeter, injection and the conveying of deposit urea liquid and reclaim line, and wherein urea liquid volume of a container is generally larger, need to occupy larger installing space.And for existing swinging construction implement, upper mechanism has been installed numerous equipment such as equipment, power unit, operational control unit, driver's cabin and other device, upper mechanism size with regard to existing swinging construction implement, the installing space of each device is very compact, and the urea liquid volume of a container of urea-spray device is generally larger, if place it in upper mechanism, need the upper mechanism large change of making comparisons, and can tie up the space of other parts or make upper mechanism appearance and size become large.Yet, if urea liquid container ties up the installing space of miscellaneous part, certainly will make machine lose corresponding function, and the size of increase machine not only will be done large design change to existing machine, and large scale can have influence on the operating characteristics of machine.Therefore on existing swinging construction implement, install spraying urea liquid injection device additional, certainly will cause machine to lose corresponding function or the size that increases machine reduces between the operating characteristics of machine and does a choice reducing some parts.

Summary of the invention

The object of the invention is to need reduce machine part of devices to lose the original partial function of machine or take and reduce the shortcoming that machine operation is cost by increased in size for installing urea-spray device on existing swinging construction implement additional, and provide the setting of a kind of construction implement with urea-spray device and urea-spray device not need to reduce machine part of devices to lose the original partial function of machine or to take and reduce machine operation and realize as cost by increased in size.

Technical scheme of the present invention is achieved in that a kind of construction implement of structure, it comprises upper mechanism and lower mechanisms, lower mechanisms comprises a main structure and is fixed on the walking mechanism of main structure both sides, upper mechanism is rotatably installed on main structure, dynamical system with exhaust system is installed on upper mechanism, the urea spray equipment that comprises urea liquid container is installed in exhaust system, urea liquid container is arranged in lower mechanisms, and the centre bore by pipeline in lower mechanisms is connected on the urea liquid demand parts that are positioned on upper mechanism.The present invention is by being arranged on bulky urea liquid container in the lower mechanisms of machine, do not occupy the space of upper mechanism, thereby make existing construction implement in increased in size not and reduce under the prerequisite of some parts with vacating space, urea spray equipment can be installed.

In construction implement of the present invention, urea liquid container can be arranged on the anterior ,Huo rear portion of main structure or arrange at the front and rear of main structure simultaneously.

In construction implement of the present invention, urea liquid container can directly arrange with the form of box-type container front portion or the rear portion of main structure, also can at the front and rear of main structure, be provided with box space in anterior ,Huo rear portion or the while of main structure, urea liquid container is arranged in box space.The formation in box space has various ways, one is exactly that upper mainboard and the lower mainboard of main structure extends forward, together with the vertical clapboard of the part that upper mainboard extends forward with lower mainboard and mainboard on being connected main structure and lower mainboard, in the front portion of main structure, form the box space of a front end open type, urea liquid container arranges in this box space.Certainly the upper mainboard of main structure and lower mainboard extend back and at the rear portion of main structure, form the box space for accommodating urea liquid container of a rear end open formula.Certainly upper and lower mainboard also can be simultaneously forward and extend back, in the front and rear part of main structure, all form the box space of accommodating urea liquid container simultaneously.For box space forms the space of sealing, reduce foreign material and enter, can add a cover plate at unlimited place.

In construction implement of the present invention, for the box space of accommodating urea liquid container can be also only by the lower mainboard of main structure forward or/and extend back, end in extension arranges a vertical baffle plate, to form the box space of an opened upper end formula.Certainly also can add a cover plate at the opened upper end place in this box space.

The present invention compared with prior art, has following beneficial effect:

1, urea liquid container bulky in urea spray equipment is arranged in lower mechanisms, do not occupy the space of superstructure, make to install additional urea spray equipment on the basis of existing machine, without reducing the original parts of machine, to vacate installing space or to increase the size of upper mechanism, not take the operability that reduces the function of machine or reduce machine, be cost.

2, urea liquid container bulky in urea spray equipment is arranged in lower mechanisms, does not increase the quality of the superstructure of machine, and the high strength of machine lower mechanisms can play a protective role to urea liquid container.

Accompanying drawing explanation

Fig. 1 is the stereogram of the construction implement in the first embodiment;

Fig. 2 be construction implement lower mechanisms in the first embodiment want portion's stereogram;

Fig. 3 is the top view of the construction implement lower mechanisms in the first embodiment;

Fig. 4 be construction implement lower mechanisms in the second embodiment want portion's stereogram;

Fig. 5 is the top view of the construction implement lower mechanisms in the second embodiment.

Component title and sequence number in figure:

Lower mechanisms (102), center sub (103), main structure (104), box space (105), urea liquid container (106), equipment (107), upper mechanism (108), fuel tank (109), hydraulic oil container (110), power-equipment (111), crawler belt (112), sprocket wheel (113), driver's cabin (114), vertical baffle (115), lower mainboard (116), upper mainboard (117).

The specific embodiment

Below in conjunction with drawings and Examples, swinging construction implement of the present invention is described.

Embodiment 1:

As shown in Figure 1, construction implement in the present embodiment is a kind of crawler hypraulic excavator, it comprises upper mechanism (108) and lower mechanisms (102), on upper mechanism (108), be provided with driver's cabin (114), equipment (107), hydraulic oil container (109), diesel fuel tanks (110) and power-equipment (111), lower mechanisms (102) is creeper undercarriage, as Fig. 2, shown in Fig. 3, it comprises main structure (104), be fixed on the track beam of main structure (104) both sides, the central area of main structure (104) is provided with revolution and supports, the center of supporting in revolution is provided with center sub (103).The upper mainboard (117) that main structure (104) comprises the portion of being positioned at be positioned at the lower mainboard (116) of bottom and be connected mainboard (117) and the vertical clapboard of lower mainboard (116), wherein descend mainboard (116) forwards to extend, the end of Bing extension is provided with vertical vertical baffle (115), vertical baffle (115), the part that lower mainboard extends forward and vertical clapboard are in the front portion of main structure (104), between two track beams, form the box space (105) of an opened upper end, urea liquid container (106) is arranged in this box space (105), urea liquid container (106) is connected to the urea liquid demand parts that are positioned on upper mechanism (108) as urea solution metering device by pipeline through center sub (103), ejector etc.In the present embodiment, utilized space between two track beams as the space of placing urea liquid container, made its installing space that does not occupy upper mechanism, and can to urea liquid container, protect so as to the high-strength structure of lower mechanisms.

Embodiment 2:

As shown in Fig. 4 Fig. 5, compare with embodiment 1, the lower mainboard (116) that its difference is main structure (104) simultaneously forward and extend back, end in extension is provided with vertical baffle (116), between the front portion of main structure (104) and rear portion, two track beams, form former and later two box spaces (105), for placing separately urea liquid container (106).

In above-described embodiment 1 and embodiment 2, the uncovered of top, box space goes out also can add cover plate, and box space is sealed, and prevents that foreign material from entering in box space.

In construction implement in the present invention, the formation in box space can be also such, be upper and lower mainboard forward and or extend back, between the front and/or rear of main structure, two track beams, form the unlimited box space of an end face for accommodating urea liquid container, at the unlimited place in box space, can add cover plate box space is sealed, prevent that foreign material from entering.

In addition, in the present invention, urea liquid container also can be designed to the shape matching with main structure front end or rear end, is directly installed between two track beams, the front portion of main structure is or/and rear portion.

Claims

1. a construction implement, comprise upper mechanism (108) and lower mechanisms (102), described lower mechanisms (102) comprises a main structure (104) and is fixed on the walking mechanism of main structure (104) both sides, described upper mechanism (108) is rotatably installed on described main structure (104), power-equipment (111) with exhaust system is installed on upper mechanism (108), the urea spray equipment that comprises urea liquid container (106) is installed in exhaust system, it is characterized in that, described urea liquid container (106) is arranged in lower mechanisms (102), described urea liquid container is connected to the urea liquid demand parts that are positioned on upper mechanism through center sub by pipeline.

2. construction implement according to claim 1, is characterized in that described urea liquid container (106) is arranged on anterior ,Huo rear portion or the front and rear of described main structure (104).

3. construction implement according to claim 2, the anterior ,Huo rear portion or the front and rear that it is characterized in that described main structure (104) are provided with box space (105), and described urea liquid container (10) is arranged in described box space (105).

4. construction implement according to claim 3, it is characterized in that described main structure comprises the vertical clapboard of mainboard (117) and lower mainboard (116) in mainboard (117), lower mainboard (116), connection, all forward and/or extend back, the extension of vertical clapboard, upper mainboard (117) and lower mainboard (116) forms the described box space (105) that end face opens wide for described upper mainboard (117) and lower mainboard (116).

5. construction implement according to claim 4, is characterized in that the unlimited end in described box space (105) is provided with cover plate.

6. construction implement according to claim 3, it is characterized in that described main structure comprises the vertical clapboard of mainboard and lower mainboard in mainboard (117), lower mainboard (116), connection, described lower mainboard (116) forward and/or extend back, extending end at lower mainboard (116) is provided with vertical baffle (115), and the extension of vertical baffle (115), vertical clapboard and lower mainboard (116) forms the described box space (105) of opened upper end formula.

7. construction implement according to claim 6, is characterized in that the opened upper end place in described box space (105) is provided with cover plate.