CN104011299A - Pilot valve attachment structure of construction machine - Google Patents
Pilot valve attachment structure of construction machine Download PDFInfo
- Publication number
- CN104011299A CN104011299A CN201280062827.4A CN201280062827A CN104011299A CN 104011299 A CN104011299 A CN 104011299A CN 201280062827 A CN201280062827 A CN 201280062827A CN 104011299 A CN104011299 A CN 104011299A
- Authority
- CN
- China
- Prior art keywords
- mentioned
- pilot valve
- seal member
- base plate
- recess
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/16—Cabins, platforms, or the like, for drivers
-
- 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
- E02F3/30—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom
- E02F3/32—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom working downwardly and towards the machine, e.g. with backhoes
- E02F3/325—Backhoes of the miniature type
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/0833—Improving access, e.g. for maintenance, steps for improving driver's access, handrails
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
- E02F9/0875—Arrangement of valve arrangements on superstructures
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/2004—Control mechanisms, e.g. control levers
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Component Parts Of Construction Machinery (AREA)
- Operation Control Of Excavators (AREA)
Abstract
Provided is a pilot valve attachment structure of a construction machine which can alleviate the sensation of pressure on an operator sitting in a driver seat. The invention, which is provided to a mini shovel having a travel steering device (11) including a pilot valve (18), relates to a configuration in which the pilot valve (18) is attached to a floor plate (15), wherein formed in the floor plate (15) is a concavity (20) having a hole (20b) in a bottom part (20a) into which a casing (18a) forming the contours of the pilot valve (18) can be inserted, the casing (18a) of the pilot valve (18) can be attached to the bottom part (20a) of the concavity (20) when the casing (18a) of the pilot valve (18) has been inserted into the hole (20b) of the concavity (20), and a mat-shaped seal member (21) is provided for sealing a gap formed around the casing (18a) of the pilot valve (18) when the casing (18a) is inserted into the hole (20b) of the concavity (20).
Description
Technical field
The pilot valve mounting structure that the present invention relates to possess at construction machineries such as mini-excavators, the pilot valve that comprises with operating means of travelling that is disposed at the anterior position of driver's seat is installed on to the construction machinery of base plate.
Background technology
As this conventional art, there is the device shown in patent documentation 1.The conventional art is configured to, the pilot valve that travelling that the hydraulic crawler excavator with driving body, revolution, apparatus for work is possessed comprises with operating means be installed on form flat condition driver's seat floor, be on base plate.
Prior art document
Patent documentation
Patent documentation 1: TOHKEMY 2011-64064 communique
Summary of the invention
Invent problem to be solved
In above-mentioned conventional art, because the base plate being configured to forming flat condition is provided with pilot valve, so from base plate upward the height dimension of the part of outstanding pilot valve uprise.Thus, the travelling of front side that is formed at driver's seat often narrows down with the operating space of operating means, thereby is easily seated at operating personnel's constriction of driver's seat.This situation is small-sized machine and remarkable especially in mechanical making, in the mini-excavator that is easily restricted of the size of travelling with the operating space of operating means etc. at the construction machinery that possesses this pilot valve.
The present invention completes according to the actual conditions of above-mentioned conventional art, and its object is to provide and can reduces being seated at the operating personnel's of driver's seat the pilot valve mounting structure of construction machinery of constriction.
For solving the scheme of problem
In order to realize this object, the pilot valve mounting structure of construction machinery of the present invention, it is provided in following construction machinery, this construction machinery has driving body, be configured in the revolution on this driving body, and the apparatus for work that is installed on this revolution, there is driver's seat being formed on the base plate of above-mentioned revolution, and there is in the anterior position of above-mentioned driver's seat the use operating means that travels that comprises pilot valve, the above-mentioned pilot valve comprising with operating means that travels is installed on to above-mentioned base plate, the pilot valve mounting structure of above-mentioned construction machinery is characterised in that, at above-mentioned base plate, be formed on the recess that bottom has hole, this hole can be inserted for the housing that forms the shell of above-mentioned pilot valve, at the above-mentioned housing that makes above-mentioned pilot valve, be inserted under the state in above-mentioned hole of above-mentioned recess, the above-mentioned housing of above-mentioned pilot valve is installed in the bottom of above-mentioned recess, and, possesses the cushion seal member when the above-mentioned housing that makes above-mentioned pilot valve is inserted into the above-mentioned hole of above-mentioned recess, the gap of the surrounding's generation at above-mentioned housing being sealed.
In the present invention who forms like this, because guide's valve housing is installed in the bottom of the recess at base plate, so can be so that guide's valve housing is installed on to base plate from the mode of the upper surface step-down of the outstanding pilot valve of the upper surface of base plate.In addition, owing to being formed with recess at base plate like this, so have the pollutants such as earth, muddy water via this recess to the worry of invading in pilot valve, for this point, the cushion seal member that the gap that utilization produces the surrounding of the housing at pilot valve seals, can stop the pollutants such as earth, muddy water to be invaded in pilot valve.
And, on the basis of foregoing invention, the invention is characterized in, above-mentioned cushion seal member consists of the parts of rubber system.In the present invention who forms like this, utilize the elasticity of cushion seal member, make this cushion seal member crooked, and can make this cushion seal member easily load and unload with respect to the recess of base plate.
And, on the basis of foregoing invention, the invention is characterized in, above-mentioned cushion seal member consists of the first partition member and the second partition member of mutually cutting apart the above-mentioned housing configuration that forms and clip above-mentioned pilot valve.In the present invention who forms like this, because cushion seal member is cut apart and formed the first partition member and the second partition member, and be separated from each other, so can easily make cushion seal member be disposed at the operation of the surrounding of pilot valve.
And, on the basis of foregoing invention, the invention is characterized in to there is jut in the lower portion of above-mentioned cushion seal member, in the above-mentioned bottom of above-mentioned recess, there is the hole portion embedding for above-mentioned jut.In the present invention who forms like this, by making the jut of cushion seal member be embedded in the hole portion of bottom of the recess of base plate, can make cushion seal member location easily in recess, and the cushion seal member that can not make to be installed on the recess of base plate stably keeps this cushion seal member with respect to recess location skew.
And, on the basis of foregoing invention, the invention is characterized in, the mode that above-mentioned cushion seal member is formed to the mode of the same face roughly with the upper surface of its upper surface and above-mentioned base plate and highly become the height more than upper surface of above-mentioned base plate is installed on above-mentioned recess.In the present invention who forms like this, due to cushion seal member is installed on to recess in the mode that becomes on the same face roughly with base plate and highly become the height more than upper surface of base plate, so the pollutant such as earth, muddy water is difficult to flow into recess, thereby can stop reliably this pollutant to be invaded in pilot valve.
The effect of invention is as follows.
The present invention is owing at the recess that is formed at base plate, pilot valve being installed, so compare existing structure, can reduce from the part of the outstanding pilot valve of base plate, thereby can reduce the operating personnel's constriction that in the past easily experienced, that produce that is seated at driver's seat in limited operating space.Thus, compared with the past, can guarantee comfortable operability.And the cushion seal member that utilization of the present invention seals the gap of the surrounding of pilot valve can stop the pollutants such as earth, muddy water to be invaded in pilot valve, can realize in the lump and maintains the good performance of pilot valve and guarantee excellent durability.
Accompanying drawing explanation
Fig. 1 means the lateral view of the mini-excavator enumerated as possessing the example of construction machinery of an embodiment of pilot valve mounting structure of the present invention.
Fig. 2 means the stereogram that sets part of the driver's seat that the mini-excavator shown in Fig. 1 possesses.
Fig. 3 removes the major part amplification stereogram of operating pedal etc. from the state shown in Fig. 2.
Fig. 4 observes the stereogram at the position shown in Fig. 3 from other angle.
Fig. 5 is the figure of relation of enter into operation and the height of guide's valve housing of description operation pedal.
Fig. 6 means the figure of the cushion seal member that present embodiment possesses, and Fig. 6 (a) is the stereogram of observing from face side, and Fig. 6 (b) is the stereogram of observing from rear side.
Fig. 7 means the figure of the installation relation of cushion seal member that present embodiment possesses and base plate, Fig. 7 (a) means the stereogram that cushion seal member is installed on to the state before base plate, and Fig. 7 (b) means the stereogram that cushion seal member is installed on to the state after base plate.
Fig. 8 means the stereogram of removing the state of cushion seal member from the state shown in Fig. 4.
Fig. 9 means the top view of the part of the base plate of having removed the cushion seal member that present embodiment possesses.
Figure 10 is the A profile of Fig. 9.
Figure 11 is the B profile of Fig. 9.
Figure 12 is the major part sectional view after making the cushion seal member of present embodiment install under the state shown in Figure 10.
The specific embodiment
Below, based on accompanying drawing, the embodiment of the pilot valve mounting structure of construction machinery of the present invention is described.
The construction machinery that possesses pilot valve mounting structure of the present invention for example forms small-sized machine, is the narrower and small mini-excavator in operating space that is configured in the operating means in driver's cabin.As shown in Figure 1, the apparatus for work 3 that this mini-excavator has driving body 1, is configured in the revolution 2 on this driving body 1 and is installed on this revolution 2 and direction is rotated up and down.Apparatus for work 3 comprises and is installed on the boom 4 of revolution 2, the arm 5 of front end that is installed on this boom 4 and the scraper bowl 6 that is installed on the front end of this arm 5.At revolution 2, dispose driver's cabin 7 and guarantee the counterweight 8 of weight balancing.In addition, between driver's cabin 7 and counterweight 8, dispose the Machine Room 9 that holds motor, hydraulic pump etc.In driver's cabin 7, dispose the driver's seat 10 of taking a seat for operating personnel, as shown in Figure 2, in the anterior position of this driver's seat 10, dispose action bars 16, the operating pedal 17 of the use of travelling and comprise travelling of pilot valve 18 and use operating means 11.In the both sides of driver's seat 10, dispose operating means 10a, 10b for operation.
As shown in the grade of Fig. 7～11, the pilot valve mounting structure of present embodiment is, is formed with the recess 20 at bottom 20a with hole 20b on the base plate 15 of driver's cabin 7, and this hole 20b can insert for the housing 18a that forms the shell of pilot valve 18.As shown in Figure 10, Figure 11, at the housing 18a that makes pilot valve 18, insert under the state of hole 20b of this recess 20, the housing 18a of pilot valve 18 is installed at the bottom of recess 20 20a.
And, in present embodiment, as shown in Fig. 3～Fig. 5, Figure 12, possess the cushion seal member 21 when the housing 18a that makes pilot valve 18 is inserted into the hole 20b of recess 20, the gap of the surrounding's generation at housing 18a being sealed.This cushion seal member 21 for example consists of the parts of rubber system.In addition, as shown in Fig. 4, Fig. 6, this cushion seal member 21 consists of the first partition member 21a and the second partition member 21b of mutually cutting apart the housing 18a configuration that forms and clip pilot valve 18.
As shown in Fig. 6 (b) and Fig. 7, this cushion seal member 21 has jut 22 in lower portion, has the hole portion 23 embedding for jut 22 at the bottom of recess 20 20a.In addition, as shown in Figure 5, the mode that cushion seal member 21 is formed to the mode of the same face roughly with the upper surface of its upper surface and base plate 15 and highly become the height more than upper surface of base plate 15 is installed on recess 20.
In addition, for being installed on the setting height(from bottom) of pilot valve 18 of recess 20 of base plate 15, as shown in Figure 5, the height and position of the upper surface of the housing 18a from base plate 15 to pilot valve 18 is set as the lower height and position H in the operating personnel of driver's seat 10 enter into operating pedal 17 when being seated at, the footwear heel 30a of operating personnel's footwear 30 does not contact with base plate 15 scope.This height and position H is for example 20mm left and right.
In the mini-excavator of pilot valve mounting structure that possesses present embodiment, the operating personnel that are seated at driver's seat 10 pass through operating means 10a, 10b for operation task as illustrated in fig. 2, make revolution 2 rotations, or make apparatus for work 3 up and down direction rotate, thereby can carry out via scraper bowl 6 digging operation etc. of sand.In addition, the operating personnel that are seated at driver's seat 10 use the action bars 16 of operating means 11 by operational drive, or by the operating pedal 17 of entering into footwear, make pilot valve 18 work and switch not shown travelling with directional control valve, thereby from the pressure oil that is contained in the hydraulic pump of Machine Room 9, via travelling, use directional control valve and driving motors supply to the left and right, and can make driving body 1 travel.
In the pilot valve mounting structure of the present embodiment forming as described above, because the bottom 20a of the recess 20 at base plate 15 installs the housing 18a of pilot valve 18, so can be so that the housing 18a of pilot valve 18 is installed on to base plate 15 from the mode of the upper surface step-down of the outstanding pilot valve 18 of the upper surface of base plate 15.Thus, can reduce the operating personnel's constriction that easily experience, that produce that is seated at driver's seat 10 in limited narrow and small operating space, thereby can guarantee comfortable operability.
In addition, owing to forming recess 20 at base plate 15, so the earth of worrying to adhere on the footwear via these recess 20 such as operating personnel, the pollutants such as muddy water that produce while washing away earth are to the interior intrusion of pilot valve 18, but for this point, the cushion seal member 21 that the gap that utilization produces the surrounding of the housing 18a at pilot valve 18 seals, can stop the pollutants such as earth, muddy water to the interior intrusion of pilot valve 18.
And, in present embodiment, because the parts of cushion seal member 21 by rubber system form, so utilize the elasticity of this cushion seal member 21, make this cushion seal member 21 bendings, and can make this cushion seal member 21 easily load and unload with respect to the recess 20 of base plate 15.
And, in present embodiment, because cushion seal member 21 is split to form, be the first partition member 21a and the second partition member 21b, and be separated from each other, so can easily make cushion seal member 21 be disposed at the operation of surrounding of the housing 18a of pilot valve 18.
And, in present embodiment, by making the jut 22 of cushion seal member 21 embed the hole portion 23 of base plate 15, can be at the interior easy locating pad shape seal member 21 of recess 20, and the cushion seal member 21 that can not make to be installed on the recess 20 of base plate 15 stably keeps cushion seal member 21 with respect to recess 20 positions skews.
And, in present embodiment, due to by cushion seal member 21 so that the upper surface of its upper surface and base plate 15 forms the roughly mode of the same face, and be installed on recess 20 so that highly become the mode of the height more than upper surface of base plate 15, so the pollutant such as earth, muddy water is difficult to flow into recess 20, thereby can stop reliably this pollutant to the interior intrusion of pilot valve 18.
The explanation of symbol
1-driving body, 2-revolution, 3-apparatus for work, 10-driver's seat, 11-travel with operating means, 15-base plate, 18-pilot valve, 18a-housing, 20-recess, 20a-bottom, 20b-hole, 21-cushion seal member, 21a-the first partition member, 21b-the second partition member, 21c-hole, 22-jut, 23-hole portion.
Claims (5)
1. the pilot valve mounting structure of a construction machinery, it is provided in following construction machinery, the apparatus for work that this construction machinery has driving body, is configured in the revolution on this driving body and is installed on this revolution, there is driver's seat being formed on the base plate of above-mentioned revolution, and have and comprise travelling of pilot valve and use operating means in the anterior position of above-mentioned driver's seat
The above-mentioned pilot valve comprising with operating means that travels is installed on to above-mentioned base plate,
The pilot valve mounting structure of above-mentioned construction machinery is characterised in that,
At above-mentioned base plate, be formed on the recess that bottom has hole, this hole can be inserted for the housing that forms the shell of above-mentioned pilot valve,
At the above-mentioned housing that makes above-mentioned pilot valve, be inserted under the state in above-mentioned hole of above-mentioned recess, the above-mentioned housing of above-mentioned pilot valve be installed in the bottom of above-mentioned recess,
And, possess the cushion seal member when the above-mentioned housing that makes above-mentioned pilot valve is inserted into the above-mentioned hole of above-mentioned recess, the gap of the surrounding's generation at above-mentioned housing being sealed.
2. the pilot valve mounting structure of construction machinery according to claim 1, is characterized in that,
Above-mentioned cushion seal member consists of the parts of rubber system.
3. the pilot valve mounting structure of construction machinery according to claim 2, is characterized in that,
Above-mentioned cushion seal member consists of the first partition member and the second partition member of mutually cutting apart the above-mentioned housing configuration that forms and clip above-mentioned pilot valve.
4. the pilot valve mounting structure of construction machinery according to claim 3, is characterized in that,
Lower portion at above-mentioned cushion seal member has jut, has the hole portion embedding for above-mentioned jut in the above-mentioned bottom of above-mentioned recess.
5. the pilot valve mounting structure of construction machinery according to claim 4, is characterized in that,
The mode that above-mentioned cushion seal member is formed to the mode of the same face roughly with the upper surface of its upper surface and above-mentioned base plate and highly become the height more than upper surface of above-mentioned base plate is installed on above-mentioned recess.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-280019 | 2011-12-21 | ||
| JP2011280019A JP2013129996A (en) | 2011-12-21 | 2011-12-21 | Pilot valve attaching structure of construction machine |
| PCT/JP2012/075514 WO2013094277A1 (en) | 2011-12-21 | 2012-10-02 | Pilot valve attachment structure of construction machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104011299A true CN104011299A (en) | 2014-08-27 |
Family
ID=48668183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280062827.4A Pending CN104011299A (en) | 2011-12-21 | 2012-10-02 | Pilot valve attachment structure of construction machine |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20140306488A1 (en) |
| EP (1) | EP2796622A1 (en) |
| JP (1) | JP2013129996A (en) |
| KR (1) | KR20140113670A (en) |
| CN (1) | CN104011299A (en) |
| WO (1) | WO2013094277A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6317706B2 (en) * | 2015-06-02 | 2018-04-25 | 株式会社日立建機ティエラ | Work machine |
| JP6511419B2 (en) * | 2016-09-01 | 2019-05-15 | 株式会社日立建機ティエラ | Small hydraulic shovel |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5251534A (en) * | 1992-04-29 | 1993-10-12 | Kayaba Industry Co. Ltd. | Input apparatus |
| JP3146152B2 (en) * | 1996-04-05 | 2001-03-12 | 株式会社クボタ | Backhoe |
| JP4537289B2 (en) * | 2005-08-15 | 2010-09-01 | 日立建機株式会社 | Construction machinery |
| JP5172813B2 (en) * | 2009-11-20 | 2013-03-27 | 日立建機株式会社 | Construction machinery |
| JP5180248B2 (en) * | 2010-03-09 | 2013-04-10 | 株式会社神戸製鋼所 | Support structure for hydraulic piping and work machine equipped with the same |
| BR112012026074A2 (en) * | 2010-04-12 | 2016-06-28 | Volvo Compact Equipment Sas | excavator and process for mounting or dismounting such excavator |
| JP5024443B2 (en) | 2010-10-27 | 2012-09-12 | コベルコ建機株式会社 | Valve operating device for construction machinery |
| WO2012073611A1 (en) * | 2010-11-29 | 2012-06-07 | 日立建機株式会社 | Construction machine |
| KR101829796B1 (en) * | 2011-02-07 | 2018-02-19 | 가부시키가이샤 히다치 겡키 티에라 | Construction machine |
| JP5793193B2 (en) * | 2011-08-09 | 2015-10-14 | 日立建機株式会社 | Construction machinery |
| US8944493B2 (en) * | 2011-09-09 | 2015-02-03 | Hitachi Construction Machinery Co., Ltd. | Construction machine |
| WO2013051609A1 (en) * | 2011-10-05 | 2013-04-11 | 日立建機株式会社 | Construction equipment |
-
2011
- 2011-12-21 JP JP2011280019A patent/JP2013129996A/en active Pending
-
2012
- 2012-10-02 EP EP12860616.7A patent/EP2796622A1/en not_active Withdrawn
- 2012-10-02 US US14/360,950 patent/US20140306488A1/en not_active Abandoned
- 2012-10-02 KR KR1020147018888A patent/KR20140113670A/en not_active Application Discontinuation
- 2012-10-02 WO PCT/JP2012/075514 patent/WO2013094277A1/en active Application Filing
- 2012-10-02 CN CN201280062827.4A patent/CN104011299A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| KR20140113670A (en) | 2014-09-24 |
| JP2013129996A (en) | 2013-07-04 |
| EP2796622A1 (en) | 2014-10-29 |
| US20140306488A1 (en) | 2014-10-16 |
| WO2013094277A1 (en) | 2013-06-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140827 |