CN202925592U - Engineering machine - Google Patents
Engineering machine Download PDFInfo
- Publication number
- CN202925592U CN202925592U CN201220523539.1U CN201220523539U CN202925592U CN 202925592 U CN202925592 U CN 202925592U CN 201220523539 U CN201220523539 U CN 201220523539U CN 202925592 U CN202925592 U CN 202925592U
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- China
- Prior art keywords
- opening
- open
- close lid
- stack
- cover
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- Expired - Fee Related
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- Component Parts Of Construction Machinery (AREA)
- Exhaust Silencers (AREA)
Abstract
The utility model provides an engineering machine which comprises an engine compartment, an engine protecting cover and an exhaust pipe, wherein the engine compartment is provided with an upper opening and a back opening, and the engine protecting cover is provided with a fixing cover and an opening-closing cover. The opening cover rotates around an opening-closing central shaft on the upper end portion of the opening cover to open and close the back opening, and the opening cover bends in a mode that two end portion in the left direction and the right direction are located below a middle portion when the opening cover is located at an opening position. The exhaust pipe penetrates through the position in the fixing cover in the front of the opening-closing central shaft and in the front of the left end portion or the right end portion of the opening-closing cover along the vertical direction, and the exhaust pipe protrudes upwards from the position. The top end of the exhaust pipe is located at the position above a specific end portion of the opening-closing cover when locating at the opening position, the position deviates from a track of opening-closing movement of the opening-closing cover, and the top end of the exhaust pipe is toward to the back opening. Therefore, the stained problem caused by the fact that the engine protecting cover is in exhaust contact with an engine is solved, and the exhaust pipe can penetrate through the fixing cover to enable the exhaust pipe to protrude upwards from the engine protecting cover.
Description
Technical field
The utility model relates in possessing the engineering machinery such as excavator of motor, is used for discharging to the outside technology of the exhaust of this motor.
Background technology
The explanation background technology of the present utility model as an example of excavator example.
General excavator possesses the top revolving body, at the rear portion of this top revolving body, forms engine room by the motor protecting cover, and motor is housed in this engine room.This motor has sound absorber, and extension is provided with stack towards the top from this sound absorber, and the exhaust of described motor is discharged to the outside from the top end opening of described stack.As its concrete structure, for example put down in writing stack and insert the logical motor protecting cover that covers engine room from above, be the structure of hood in Japanese patent gazette No. 3474462 (hereinafter referred to as patent documentation 1).Described hood is configured to rotate along left and right directions take its left end or right-hand member as fulcrum, thereby opens and closes engine room, and the position is provided with through hole near the rotary middle spindle of this hood.Described stack exports to the top of engine room by this through hole.And described stack is along the switching track of the motor protecting cover shape with arc-shaped bend, accordingly, and the motor protecting cover when avoiding the motor protecting cover to open and close and the interference between stack.
On the other hand, a kind of engineering machinery that possesses the motor protecting cover is disclosed in the open communique of Japanese Utility Model is opened clear No. 59-51682 (hereinafter referred to as patent documentation 2) in fact, wherein, thus this motor protecting cover comprises the fixed cap of the non-open and close type that covers engine room from the top and rotate in the scopes of more than 90 degree the open-close lid that the backside openings section to engine room opens and closes along the vertical direction take upper end side as fulcrum.
There is the following problem that should solve in the technology of putting down in writing in above-mentioned patent documentation 1,2.
According to the technology of putting down in writing in patent documentation 1, because stack under the state of opening the motor protecting cover is positioned at the inboard of motor protecting cover, therefore, the exhaust that motor occurs is contacted with the inboard of motor protecting cover and it is caused stained problem.In addition, the through hole of the stack derivation use that arranges on the fixed cap in the motor protecting cover of supposing to put down in writing in patent documentation 2, the motor protecting cover that namely has fixed cap and open-close lid as put down in writing in patent documentation 1, open-close lid and stack can disturb.In addition, according to the opening on the top of stack towards difference, when under the state of opening open-close lid during engine operation, the exhaust meeting of this motor is contacted with open-close lid.
As the method that addresses these problems, can consider to make the top of stack in the position of forwards fully leaving from the open-close lid that is shown in an open position, structure towards the direction that departs from this open-close lid (for example towards the left side, towards the right side or towards the front side) opening, but, if adopt this structure, the exhaust of motor and exhaust sound are on the human pilot in the place ahead of occupying engine room or to be positioned at the other operating personnel's of the side of engineering machinery impact large, and the problems such as stained expansion of fuselage occur to make because of engine exhaust.
In addition, also can consider to make stack increase to extend towards the top and make its top in the high position structure towards rear openings, still, if adopt this structure, the vibration of the stack when having engine operation becomes large and problem that durability reduces.
In addition, also can consider to make the width of rear openings of engine room and the width that covers the open-close lid of this rear openings to diminish, and stack is arranged on the structure of the position in the outside of comparing the right that more keeps left with left end or the right-hand member of open-close lid, but, if adopt this structure, can be unfavorable for carrying out maintenance activity from the rear side of engine room.
The utility model content
In view of the above problems, the purpose of this utility model is to provide a kind of engineering machinery, comprise motor protecting cover with fixed cap and open-close lid and the engineering machinery of stack, in the situation that avoid above-mentioned each problem, can make described stack run through described fixed cap and make it outstanding upward from described motor protecting cover.
engineering machinery provided by the utility model comprises: driver's seat, engine room is arranged on the rear of described driver's seat, and has upper side opening and rear openings, motor is housed in described engine room, sound absorber is connected in described motor, stack extends towards the top from described sound absorber, and motor protecting cover, fixed cap and the open-close lid that covers rear openings with the upper side opening that covers described engine room, wherein, described open-close lid rotates along the vertical direction and opens and closes described rear openings around the switching central axis that is set at its upper end, when observing from rear side the described open-close lid that is shown in an open position, described open-close lid is the both ends of left and right directions and compares the bending that more is positioned at downside with pars intermedia, wherein, described open position is the position of described motor protecting cover when opening, described stack run through along the vertical direction described fixed cap as upper/lower positions and outstanding upward from this position: with as described in the switching central axis of open-close lid compare and be positioned at the place ahead, and compare with the specific end of selecting the position that is positioned at the place ahead from the both ends of left and right directions, the top of described stack is placed in the track of the on-off action that departs from described open-close lid, and when described open-close lid is in described open position than position closer to the top, described specific end, and towards rear openings.
According to the setting on the top of this kind stack, can make the top of this stack be positioned at the rear position of leaving driver's seat in the situation that avoid the interference of stack and open-close lid, can make the exhaust of motor and exhaust sound be difficult for arriving human pilot.Be placed in the position at the rear of the scope that described stack and described open-close lid do not disturb by the top that makes described stack, this effect is the most remarkable.
In addition, due to position closer to the top, the specific end (end in left and right end portions) of top when being shown in an open position than open-close lid of described stack towards rear openings, therefore, when motor is worked under the state that open-close lid is opened, also can avoid the exhaust of the motor of discharging from described top to be contacted with open-close lid, can prevent the stained of this open-close lid and towards the exhaust sonic reflection of driver's seat.And, described open-close lid is compared the mode bending of side more on the lower with the both ends of the left and right directions of its open position with pars intermedia, therefore, can in the situation that the top of described stack is positioned at than position closer to the top, described specific end, suppress the height of this stack.Accordingly, can and set littlely from the overhang of the stack of fixed cap with the length of required stack, the vibration of the stack in the time of can suppressing engine operation thus and improve durability.
Above effect, especially remarkable under the situation of the stained and exhaust sonic reflection that easily occurs to cause because of engine exhaust, that is, in the situation that to compare the inboard of the right that more keeps left remarkable in the left and right directions edge of at least a portion of the opening on the top of described stack and the specific end of described open-close lid.
In addition, as mentioned above, be positioned at by the top that makes stack and compare position closer to the top than the specific end of open-close lid and avoid both interference, therefore, need not to make for fear of this interference the width of rear openings of engine room and the width of open-close lid to diminish.Therefore, can guarantee significantly be used to the space width of carrying out maintenance activity.
In the utility model, " towards rear openings " is not limited to also comprise the situation towards oblique rear openings towards positive rear openings.Preferably: the top of described stack, in the mode that the outside of inclined left right tilts, (namely, the mode of seeing to tilt with the outside from fore-and-aft direction inclined left right is overlooked, towards oblique rear openings in the top of described stack towards oblique rear openings.)。Exhaust from the motor of discharging towards the stack of this direction opening is discharged to the direction of comparing the outside of more departing from left and right directions than the specific end of open-close lid, and therefore, engine exhaust more is difficult for being contacted with open-close lid.
In addition, preferred: the switching central axis that the opening on the top of described stack is in than described open-close lid more leans on the position at rear.The exhaust of the motor of discharging from the top end opening of the stack that is in this position is difficult for making the rearward end of the engineering machinery that comprises open-close lid to tarnish, and more is difficult for making exhaust sound to arrive human pilot.
Description of drawings
Fig. 1 is the summary side elevation of the related excavator of the first embodiment of the present utility model.
Fig. 2 observes the stereogram of described excavator from rear side.
Fig. 3 is the rear elevation of described excavator.
Fig. 4 is the enlarged drawing of the A part of Fig. 3.
The approximate vertical view at the rear portion of this excavator when Fig. 5 means the open-close lid of closing described excavator.
The approximate vertical view at the rear portion of this excavator when Fig. 6 means the open-close lid of opening described excavator.
Fig. 7 is the VII-VII line amplification view of Fig. 6.
Fig. 8 is the approximate vertical view at the rear portion of this excavator when closing the open-close lid of the related excavator of the second embodiment of the present utility model.
The specific embodiment
Below with reference to Fig. 1～Fig. 7, the first embodiment of the present utility model is described.
In this embodiment the utility model is applicable to excavator.This excavator comprises as Fig. 1～caterpillar lower running body 1 shown in Figure 3, the operation fixture 3 that is equipped on the top revolving body 2 on this lower running body 1 and is installed on the leading section of this top revolving body 2 with freely rotating.Be equipped with the driver's cabin 4 that is provided with not shown driver's seat in the front portion, left side of top revolving body 2, be equipped with counterweight 5 in rearward end.At the rear side of driver's cabin 4, be formed with engine room 6 in the position in the place ahead of counterweight 5, contain motor 7 and comprise the sound absorber 8 that consists of Exhuster of engine and the relevant apparatus of stack 13 in this engine room 6.Described engine room 6 has upper side opening and the aft-opening rear openings of upward opening, and rear openings forms by the width middle body otch with counterweight 5.
This excavator also comprises the motor protecting cover, and this motor protecting cover comprises the fixed cap 9 of the non-open and close type that covers described upper side opening and covers the open-close lid 10 of described rear openings.Open-close lid 10 rotates centered by the level of the left and right directions of end disposed thereon opens and closes central axis, thereby opens and closes described rear openings.Particularly, the pair of right and left hinge 11 that the upper end of this open-close lid 10 arranges by spaced interval is connected in the rearward end of fixed cap 9, open-close lid 10 rotates as described switching central axis along the vertical direction with the central axis 11a (Fig. 4 and Fig. 7) of described each hinge 11, opens and closes described rear openings.More specifically, the 90 degree many scopes of this open-close lid 10 between fastening position and open position are rotated along the vertical direction, open and close with this rear openings to described engine room 6, wherein, described fastening position is for covering the position (solid line in Fig. 1 and position shown in Figure 5) of described rear openings with substantially vertical posture, described open position is the position (Fig. 2～Fig. 4 and position shown in Figure 6) of opening described rear openings with the posture that raises slightly backward than level.In addition, be provided with Fig. 1～Fig. 3 and damper (dumper) 12 shown in Figure 7 between fixed cap 9 and open-close lid 10, this damper 12 is assisted the on-off action of open-close lid 10.
As Fig. 5 and shown in Figure 6, when observing from upside, described open-close lid 10 is the shape of the mode bending of the most rearward giving prominence to the pars intermedia of left and right directions in described fastening position.In other words, when observing from rear side, at described open position, be the middle part of left and right directions of open-close lid 10 in the top side, the two-end part of left and right directions is in the curved shape of lower side.
Described sound absorber 8 is arranged on the leftward space in engine room 6, and is positioned at the top of motor, and described stack 13 further extends upward from described sound absorber 8.The specific end that this stack 13 is selected in the both ends of the left and right directions of described open-close lid 10 (is left end in the present embodiment.Also can be right-hand end in the utility model.) anterior position nearby run through described fixed cap 9 and outstanding upward from this fixed cap 9.The related stack 13 of present embodiment comprises and vertically extends and run through the vertical component of this fixed cap 9 and be partial to the deflection part of horizontal direction from the upper end of this vertical component, the end of this deflection part, is the top 13a of stack 13 (one)～(four) that are set to meet the following conditions.
(1) described top 13a does not disturb with the switching track of open-close lid 10 on fore-and-aft direction mutually.Preferably be positioned at rear side in the scope of not disturbing.
(2) at least a portion (part or all) of the opening of described top 13a is positioned at the inboard (being in the present embodiment the right side) of edge (being the left border section of the left end in the present embodiment) right that more keeps left than the left and right directions of the specific end of described open-close lid 10.
(3) described top 13a is positioned at the position closer to the top, specific end (being in the present embodiment left end) than the open-close lid 10 that is in described open position.
(4) described top 13a is towards rear openings.Preferably: towards oblique rear openings, and towards the outside of the left and right directions of the fuselage (top revolving body 2) of excavator the direction of deflection left side (in the present embodiment towards) opening.Further, in the present embodiment, described top 13a is upward opening slightly.
In other words, the mode of described to satisfy (one)～(fours') condition has been set the position of stack 13, curved shape and the size of top ends.
In this excavator, the top 13a of described stack 13 is in the position of departing from from the switching track of open-close lid 10, therefore, stack 13 does not disturb with open-close lid 10, and, towards rear openings, therefore, the exhaust of motor 7 and exhaust sound are difficult for arriving human pilot there due to this top 13a.This effect when described stack 13 being arranged on the rear side of the scope that described interference does not occur for the most remarkable.And, this kind jam avoidance is to realize by the top of the specific end of the open-close lid 10 that described top 13a is positioned at be shown in an open position, therefore, although the anterior position of stack 13 in described specific end runs through fixed cap 9 and its top 13a towards rear openings, also can avoid under the state that open-close lid 10 is opened motor 7 to be turned round and its exhaust is contacted with the situation of open-close lid 10.And, as Fig. 1～shown in Figure 7, partially the keep left right outside and towards oblique rear openings (in figure for towards a left side oblique rear side) of the top 13a of described stack 13, when this can make under the state that open-close lid 10 is opened motor 7 running, exhaust specific end (left end) from open-close lid 10 as shown in the arrow Fig. 6 of the motor 7 of discharging from described top 13a flow to the outside.Accordingly, engine exhaust more is difficult for being contacted with open-close lid 10, can prevent the stained of open-close lid 10 and to the exhaust sonic reflection of driver's seat side.
And, described open-close lid 10 is more crooked than the mode that pars intermedia more is positioned at downside with the both ends at its open position left and right directions, therefore, can make the top 13a of described stack 13 be arranged in the top of the specific end at its both ends, avoid the exhaust of the motor 7 of discharging from top 13a to be contacted with open-close lid 10 with this, and suppress the height of this top 13a.Accordingly, can and set littlely from the overhang L of the stack 13 of fixed cap 9 with the length of required stack 13, the vibration of the stack 13 when suppressing engine running and improve durability.In addition, as mentioned above, the top that makes the top 13a of stack 13 be positioned at the specific end of the open-close lid 10 that is shown in an open position avoids interference, therefore, need not for fear of this interference and set the width of the rear openings of engine room 6 and the width of open-close lid 10 little, therefore, can guarantee significantly space width for maintenance activity.
The utility model is not limited to the first embodiment of above-mentioned explanation.For example, in described the first embodiment, as Fig. 5 and shown in Figure 6, the top 13a of stack 13 is positioned at switching central axis (being the central axis 11a of two hinges 11 in the present embodiment) position more on the front than open-close lid 10, but also can adopt the second embodiment of the present utility model as shown in Figure 8 such, the top 13a of stack 13 is positioned at than described switching central axis and more leans on the structure of the position at rear.That is, also can further extend in the direction for the part of being partial to oblique rear side in stack 13 from the upper end of vertical component.If adopt this structure, under the state that open-close lid 10 is closed during motor 7 running, the rearward end that prevents from comprising the top revolving body 2 of open-close lid 10 will further improve because of the stained effect of engine exhaust.And, the more difficult arrival human pilot of exhaust sound.
The opening of the top 13a of stack 13 towards also carrying out various changes.In described first and second embodiment, this top 13a is oblique rear side towards a left side, and upward opening slightly, but, can suppress engine exhaust and be contacted with the scope of the open-close lid 10 of open position, this opening towards also changing to parallel with horizontal plane and towards the direction (being partial to from behind the direction in left side) at oblique rear, a left side, parallel with horizontal plane and towards the direction in dead astern or parallel with horizontal plane and towards slightly upward direction from behind.
In the utility model, also sound absorber 8 and stack 13 can be set on the right side of motor 7.And the utility model also can similarly be applicable to the engineering machinery beyond excavator.
In this manual, only otherwise specify front side, rear side, left side and right side when " front side ", " rear side ", " left side " and " right side " refer to respectively observe from the driver's seat of engineering machinery.
Claims (5)
1. engineering machinery is characterized in that comprising:
Driver's seat;
Engine room is arranged on the rear of described driver's seat, and has upper side opening and rear openings;
Motor is housed in described engine room;
Sound absorber is connected in described motor;
Stack extends towards the top from described sound absorber; And
The motor protecting cover has the fixed cap of the upper side opening that covers described engine room and covers the open-close lid of rear openings, wherein,
Described open-close lid rotates along the vertical direction and opens and closes described rear openings around the switching central axis that is set at its upper end,
When observing from rear side the described open-close lid be shown in an open position, described open-close lid is the both ends of left and right directions and compares the bending that more is positioned at downside with pars intermedia, and wherein, described open position is the position of described motor protecting cover when opening,
Described stack run through along the vertical direction described fixed cap as upper/lower positions and outstanding upward from this position: with as described in the switching central axis of open-close lid compare and be arranged in the place ahead and compare with the specific end of selecting from the both ends of left and right directions the position that is positioned at the place ahead
When the top of described stack is placed in the track of the on-off action that departs from described open-close lid and described open-close lid and is in described open position than position closer to the top, described specific end, and towards rear openings.
2. engineering machinery according to claim 1 is characterized in that:
The top of described stack is placed in the position at the rear of the scope that described stack and described open-close lid do not disturb.
3. engineering machinery according to claim 1 is characterized in that:
The inboard of the right that more keeps left is compared in the left and right directions edge of at least a portion of the opening on the top of described stack and the specific end of described open-close lid.
4. engineering machinery according to claim 1 is characterized in that:
The top of described stack, the mode that tilts with the outside of inclined left right is towards oblique rear openings.
5. engineering machinery according to claim 1 is characterized in that:
The switching central axis that the opening on the top of described stack is in than described open-close lid more leans on the position at rear.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-226861 | 2011-10-14 | ||
| JP2011226861A JP2013087447A (en) | 2011-10-14 | 2011-10-14 | Engine exhaust system of construction machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202925592U true CN202925592U (en) | 2013-05-08 |
Family
ID=48215568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220523539.1U Expired - Fee Related CN202925592U (en) | 2011-10-14 | 2012-10-12 | Engineering machine |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2013087447A (en) |
| CN (1) | CN202925592U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033224A (en) * | 2014-06-12 | 2014-09-10 | 柳州柳工挖掘机有限公司 | Muffler device of excavator |
| CN104499524A (en) * | 2014-11-13 | 2015-04-08 | 中联重科股份有限公司渭南分公司 | Smoke hole structure allowing smoke exhaust pipe to penetrate and engineering machinery |
-
2011
- 2011-10-14 JP JP2011226861A patent/JP2013087447A/en active Pending
-
2012
- 2012-10-12 CN CN201220523539.1U patent/CN202925592U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033224A (en) * | 2014-06-12 | 2014-09-10 | 柳州柳工挖掘机有限公司 | Muffler device of excavator |
| CN104499524A (en) * | 2014-11-13 | 2015-04-08 | 中联重科股份有限公司渭南分公司 | Smoke hole structure allowing smoke exhaust pipe to penetrate and engineering machinery |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2013087447A (en) | 2013-05-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20211012 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |