CN1624254A - Construction device of building machinery - Google Patents
Construction device of building machinery Download PDFInfo
- Publication number
- CN1624254A CN1624254A CNA2004100956079A CN200410095607A CN1624254A CN 1624254 A CN1624254 A CN 1624254A CN A2004100956079 A CNA2004100956079 A CN A2004100956079A CN 200410095607 A CN200410095607 A CN 200410095607A CN 1624254 A CN1624254 A CN 1624254A
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- CN
- China
- Prior art keywords
- fluid pressure
- rocking arm
- pressure line
- connecting pin
- hydraulic hose
- 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.)
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Classifications
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- 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
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
- E02F9/2275—Hoses and supports therefor and protection therefor
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/40—Special vehicles
- B60Y2200/41—Construction vehicles, e.g. graders, excavators
- B60Y2200/412—Excavators
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- 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)
- Shovels (AREA)
Abstract
The invention protects a hydraulic hose connected to an attachment cylinder of a hydraulic attachment. In this working device for a construction machine, a third connecting pin 29 for connecting the tip side of a second link 27 constituting a link mechanism 24, to a working tool attaching/detaching device 16 is rotatably provided with a hydraulic line fixing member 38 for fixing an intermediate part of the hydraulic hose 35. Consequently, when the working tool attaching/detaching device 16 turns on the tip side of an arm 14, the hydraulic hose 35 can be restrained from bending in large degree to rub against the working tool attaching/detaching device 16 or the like, so that the hydraulic hose 35 can be protected.
Description
Technical field
The present invention relates to be located on the building machinery such as hydraulic crawler excavator, hydraulic crane for example and carry out the construction equipment of the building machinery of civil construction etc.
Background technology
In general, as being used for the hydraulic crawler excavator that the cubic metre of earth and stone excavates the building machinery of construction etc., it roughly is made of walking car body and the construction equipment that is located on this car body.And, the construction equipment of hydraulic crawler excavator usually by can pitching action ground be installed in cantilever on the car body, the construction appliance that can pitching be installed in the rocking arm of this cantilever front with moving and can be installed in this rocking arm front rotationally constitutes.
At this moment, as the construction appliance that is installed in construction equipment rocking arm front, scraper bowl, grab bucket, crushing engine etc. are arranged,, just can excavate operations such as construction, lifting construction, broken construction by changing these various construction appliances and being installed in the rocking arm front.
On the other hand, well-known, in order to carry out the replacing of these various construction appliances easily, the fluid pressure type servicing unit of construction appliance loading and unloading usefulness has been installed in the rocking arm front.And, this fluid pressure type servicing unit, have and utilize two tines that the servicing unit oil cylinder is close mutually, leave, by each tine is cooperated with two axles that are fixed on the construction appliance side, and make its disengaging, can load and unload diverse construction appliance in the rocking arm front rapidly and easily with this, therefore, this fluid pressure type servicing unit has constituted the part (for example, with reference to 11-107307 number bulletin of patent documentation 1-Japanese kokai publication hei) of construction appliance.
But above-mentioned usefulness is the fluid pressure type servicing unit of technology in the past, and it is by being installed in the rocking arm front rotationally, and has been connected link mechanism on this fluid pressure type servicing unit and rocking arm.And, be utilize the construction appliance oil cylinder be set between rocking arm and the link mechanism flexible, the fluid pressure type servicing unit rotates in the structure of rocking arm front by link mechanism with construction appliance.
Here, on the auxiliary cylinder of being located on the fluid pressure type servicing unit, connecting to be used for supplying with and ejecting autogamy and place hydraulic crawler excavator car body (upper rotating body) to go up the hydraulic hose of hydraulic power source hydraulic oil, this hydraulic hose usually above rocking arm or the side extend to the fluid pressure type servicing unit, and its front is incorporated in narrow fluid pressure type servicing unit inside.
Therefore, exist when the fluid pressure type servicing unit when the rocking arm front is rotated, be incorporated in hydraulic hose in the fluid pressure type servicing unit at rocking arm and fluid pressure type servicing unit by the wide-angle bending, and cause the problem of damage in a short time with friction such as fluid pressure type servicing unit.In addition, hydraulic hose does not meet the rotational angle of fluid pressure type servicing unit in addition, and hydraulic hose is torn, rolls over problems such as flat.
In addition, for example on the fluid pressure type servicing unit, scraper bowl is installed, and is excavated when construction, also be in the underground state that submerges together, the fluid pressure type servicing unit is rotated, so that excavate the soil with scraper bowl with scraper bowl with fluid pressure type servicing unit or rocking arm with this scraper bowl.At this moment, the hydraulic hose that is connected with auxiliary cylinder is according to the rotational action of fluid pressure type servicing unit and tension and relaxation, sometimes it exposes much to the outside above rocking arm, in this case, the hydraulic hose that exposes from rocking arm has appearred, be present in rocking arm around obstruction mutual interference and the discomfort that sustains damage mutually.
The present invention is in view of the problem of above-mentioned conventional art and the scheme that proposes, and its purpose is to provide a kind of hydraulic hose that is connected with the auxiliary cylinder of fluid pressure type servicing unit that can prevent to sustain damage, and can protect the building machinery construction equipment of this hydraulic hose.
Summary of the invention
In order to address the above problem, the construction equipment of building machinery of the present invention, it has: but be installed in the cantilever of pitching action on the car body of building machinery, but be installed in the rocking arm of this cantilever front pitching action, utilization can be installed in the auxiliary cylinder of this rocking arm front rotationally as construction appliance or its part and the fluid pressure type servicing unit that moves, the link mechanism that is connected with this fluid pressure type servicing unit, make the construction appliance oil cylinder of fluid pressure type servicing unit by this link mechanism in the rotation of rocking arm front, its link mechanism is by with the 1st connecting pin the keying of butt side being combined in the 1st link rod on the rocking arm, butt side and the 1st link rod front and the keying of construction appliance oil cylinder are merged the 2nd link rod formation that front is combined with the fluid pressure type servicing unit with the 3rd connecting pin with the 2nd connecting pin.
And, the 1st structure that scheme adopts of the present invention is characterised in that, has fluid pressure line that the front of extending along the rocking arm length direction is connected with auxiliary cylinder and can be around the fluid pressure line fixed part at the position midway of rotation of the 3rd connecting pin and fixed hydraulic pipeline.
The structure that the 2nd scheme of the present invention adopts is, the 2nd link rod has the hub portion of the axial both end sides of passing the 3rd connecting pin, and the fluid pressure line fixed part can be installed in hub portion with the 3rd connecting pin with relatively rotating individually.
The structure that the 3rd scheme of the present invention adopts is, the fluid pressure line fixed part by the rotating sleeve that passes the 3rd connecting pin, be located at threaded block on this sleeve, be installed on this threaded block and the clamping part that fluid pressure line is clamped constitutes.
The structure that the 4th scheme of the present invention adopts is that the rotating swivel joint that connects fluid pressure line front end position is set on auxiliary cylinder.
The structure that the 5th scheme of the present invention adopts is, is provided with the base that connects fluid pressure line on auxiliary cylinder, is provided with connection and can is with the axis with the 3rd connecting pin axially parallel the swivel joint at the fluid pressure line front end position of rotating at the center on this base.
The structure that the 6th scheme of the present invention adopts is, midway being made of the hydraulic hose that extends above rocking arm to the front end position at the position from rocking arm in the fluid pressure line is provided with the bend that can be out of shape according to the rotation of fluid pressure type servicing unit on this hydraulic hose.
The structure that the 7th scheme of the present invention adopts is, fluid pressure line is made of with the hydraulic hose that this connector portions is connected and the front end position is connected with auxiliary cylinder to the fluid pressure line of cantilever bending, the connector portions that is located at this fluid pressure line front end position, the butt position of extending above rocking arm along the front end position that rocking arm extends the position that partways of the butt side from rocking arm, is provided with the bend of turning back and can be out of shape according to the rotation of fluid pressure type servicing unit to auxiliary cylinder from connector portions in the position midway at hydraulic hose.
Adopt the 1st scheme of the present invention, when construction appliance was flexible, the flexible of this construction appliance was passed to the fluid pressure type servicing unit by link mechanism, and the fluid pressure type servicing unit rotates in the front of rocking arm.At this moment, the position midway of the fluid pressure line that is connected with the auxiliary cylinder of fluid pressure type servicing unit is fixed on and can be located at rotationally in conjunction with on the fluid pressure line fixed part on the 3rd connecting pin between the 2nd link mechanism front and the fluid pressure type servicing unit.Therefore, when the fluid pressure type servicing unit when the front of rocking arm is rotated, it rotates the fluid pressure line fixed part with respect to the 3rd connecting pin, can position and being connected between the fluid pressure line front end position that auxiliary cylinder connects maintain a certain distance at the fluid pressure line that is fixed on the fluid pressure line fixed part with this midway.Therefore, can suppress fluid pressure line crooked a lot of along with the rotation of fluid pressure type servicing unit and with the friction of fluid pressure type servicing unit etc., thereby can protect this fluid pressure line.
Adopt the 2nd scheme of the present invention; owing to can the fluid pressure line fixed part be installed on the 3rd connecting pin that passes the 2nd link rod hub portion with above-mentioned hub portion with individually relatively rotating; so when the fluid pressure type servicing unit when the front of rocking arm is rotated; it rotates the fluid pressure line fixed part with respect to the 3rd connecting pin; fluid pressure line can be suppressed at macrobending, and this fluid pressure line can be protected along with the rotation of fluid pressure type servicing unit.
Adopt the 3rd scheme of the present invention, as long as can rotationally sleeve be penetrated the 3rd connecting pin, and the clamping part that installation can clamp fluid pressure line on the threaded block of being located on this sleeve, the position midway that fluid pressure line just can be installed rotationally with respect to the 3rd connecting pin.
Adopt the 4th scheme of the present invention, owing on auxiliary cylinder, be provided with the rotating swivel joint that connects fluid pressure line folder front end position, so when the fluid pressure type servicing unit when the front of rocking arm is rotated, swivel joint is along with the fluid pressure type servicing unit rotates, quilt is crooked excessively along with the rotation of fluid pressure type servicing unit can to suppress fluid pressure line with this, thereby can improve the durability of this fluid pressure line.
Adopt the 5th scheme of the present invention, owing on auxiliary cylinder, be provided with the base that connects fluid pressure line, being provided with connection on this base can be the swivel joint at the fluid pressure line front end position of center rotation with the axis with the 3rd connecting pin axially parallel, so when the fluid pressure type servicing unit when the front of rocking arm is rotated, swivel joint can be that rotate at the center with the axis with the 3rd connecting pin axially parallel, can suppress fluid pressure line by crooked excessively.
Adopt the 6th scheme of the present invention, midway constituting by the hydraulic hose that above rocking arm, extends to the front end position at the position in its fluid pressure line from rocking arm, on this hydraulic hose, be provided with can be according to the rotation of fluid pressure type servicing unit and on rocking arm the bend of facial disfigurement.Therefore, even produced laxly, also can utilize the distortion of bend to absorb the lax of this hydraulic hose because of the fluid pressure type servicing unit rotates hydraulic hose in the front of rocking arm.Therefore, can suppress to produce lax hydraulic hose to the rocking arm outside expose a lot and be present in this rocking arm around mutual interference mutually such as obstruction, thereby can protect this hydraulic hose.
Adopt the 7th scheme of the present invention, it is located to the connector portions at the fluid pressure line front end position of cantilever bending and the hydraulic hose between auxiliary cylinder position midway in connection, is provided with the bend of turning back and being out of shape according to the rotation of fluid pressure type servicing unit to auxiliary cylinder from connector portions.Thereby,, also can utilize the bending of bend on rocking arm to absorb the lax of this hydraulic hose even produced laxly because of the fluid pressure type servicing unit rotates hydraulic hose in the front of rocking arm.Therefore, can suppress to produce lax hydraulic hose, to the rocking arm outside expose a lot and be present in this rocking arm around mutual interference mutually such as obstruction.
Description of drawings
Fig. 1 is a hydraulic crawler excavator front view of having used embodiment of the present invention.
Fig. 2 is the front view of holding rocking arm in the attitude presentation graphs 1, construction appliance handler high with scraper bowl.
Fig. 3 is the being seen rocking arm of III-III direction from Fig. 2, the left side view of construction appliance handler.
Fig. 4 is the front view that attitude is represented rocking arm, construction appliance handler of toppling over scraper bowl.
Fig. 5 is the being seen rocking arm of V-V direction from Fig. 4, the left side view of construction appliance handler.
Fig. 6 is the local amplification sectional view from the being seen construction appliance handler of the VI-VI direction of Fig. 3, fluid pressure line fixed part etc.
Fig. 7 is the local amplification sectional view from the being seen construction appliance handler of the VII-VII direction of Fig. 5, fluid pressure line fixed part etc.
Fig. 8 is the local amplification sectional view from the being seen construction appliance handler of the VIII-VIII direction of Fig. 7, fluid pressure line fixed part etc.
Fig. 9 is the being seen rocking arm of IX-IX direction, the hydraulic hose from Fig. 6, the sectional view of flexible pipe holding member.
Figure 10 is the exploded perspective view that decomposes the 2nd link rod, fluid pressure line fixed part etc.
Figure 11 is illustrated in the front view the same with Fig. 4 that the rocking arm front has been installed the grab bucket state as modified example.
Symbol description
The 11-construction equipment, 12-cantilever, 14-rocking arm, 16-construction appliance handler (fluid pressure type servicing unit) 20, the 51-auxiliary cylinder, 23-plinth, 24-link mechanism, 25-the 1st link rod, 26-the 1st connecting pin, 27-the 2nd link rod, 27B-front hub portion, 28-the 2nd connecting pin, 29-the 3rd connecting pin, 30-construction appliance oil cylinder, 31-scraper bowl, 32-fluid pressure line, the 33-hydraulic tube, 33A-front end position, 34-connector portions, the 35-hydraulic hose, the 35A bend, 37-swivel joint, 38-fluid pressure line fixed part, the 39-sleeve, the 40-threaded block, 41-hose clip (clamping part), 53-grabbing device (fluid pressure type servicing unit)
The specific embodiment
Below, with reference to Fig. 1～Figure 11, be example with the fluid pressure type servicing unit, the construction equipment embodiment of building machinery of the present invention is described.
In the drawings, the 1st, as the hydraulic crawler excavator of building machinery, the car body of this hydraulic crawler excavator 1 roughly is made of the crawler type lower running body 2 that can walk voluntarily, the upper rotating body 3 that can be installed in rotationally on this lower running body 2.And, be provided with ejector dozer device 4 in the toe lateral of lower running body 2.
On the other hand, upper rotating body 3 roughly by the rotary frame 5 that constitutes supporting structure, be located at these rotary frame 5 rear portion side and with the counterweight 6 of the weight balancing of construction equipment 11 described later, be positioned at these counterweight 6 front sides and be located at driver's seat 7 on the rotary frame 5, from above hide this driver's seat 7 cover 8 constitute.And the swing pillar of in rotary frame 5 toe lateral, be provided with left, right being swung 9 on this swing pillar 9, is provided with the construction equipment 11 of energy described later pitching.
The 11st, by swinging the construction equipment that pillar 9 is located at rotary frame 5 toe lateral and direction swing to the left and right, this construction equipment 11, constitute by cantilever 12 described later, rocking arm 14, construction appliance handler 16, scraper bowl 31 etc., and can carry out the excavation construction of the cubic metre of earth and stone.
The 12nd, but be installed on the cantilever of the pitching of swing on the pillar 9, this cantilever 12, the square tube body that is bent to く word shape by the position midway of length direction constitutes, and its front and swing pillar 9 are linked by pin.In addition, cantilever 12 utilizes the cantilever tank 13 that is located at and swings between the pillar 9, can be with respect to the direction pitching action up and down of swing pillar 9.
The 14th, but be installed in the rocking arm of the pitching action of cantilever 12 front ends, this rocking arm 14 is by almost constituting to linearly extended square tube body, and its butt side is attached at cantilever 12 front ends by pin.And, butt side at rocking arm 14, be provided with the cylinder bracket 14A that construction appliance oil cylinder 30 described later has been installed, in the front of rocking arm 14, leave and be provided with the cylindric hub 14B of portion that construction appliance handler 16 keyings described later are closed, and the cylindric hub 14C of portion (with reference to Fig. 6) that the 1st link rod described later 25 keyings are closed at length direction.And, rocking arm 14 utilization be located at and cantilever 12 between rocking arm oil cylinder 15, can be with respect to cantilever 12 direction pitching action up and down.
The 16th, as the construction appliance handler of the fluid pressure type servicing unit that constitutes a construction appliance part, these construction appliance handler 16 usefulness connecting pins 17 are installed in rotation on the front of rocking arm 14.Here, construction appliance handler 16 is not constitute construction appliance with (all having diagram) such as scraper bowl 31 described later, grab bucket, crushing engines, and with scraper bowl 31 etc. at the rocking arm 14 front device of loading and unloading rapidly and easily.And construction appliance handler 16 is made of fixed claw parts 18 described later, movable pawl parts 19, auxiliary cylinder 20 etc. shown in Fig. 6～Fig. 8 etc.
The 18th, as the fixed claw parts of construction appliance handler 16 bases, these fixed claw parts 18 are for example to possess the left side plate 18A, the 18A that face with formation such as steel plate and clamping rocking arm 14 front and left and right directions, this each side plate 18A is linked the structure that all-in-one-piece links parts (not having diagram).
Here, in the butt side of each the side plate 18A that constitutes fixed claw parts 18, the pin-and-hole 18B that passes connecting pin 17, the pin-and-hole 18C that passes the 3rd connecting pin 29 described later have been offered to devices spaced apart.In addition, in the front of fixed claw parts 18, fixedly installed split pipe 18D, this split pipe 18D with semicircle arcuation cross sectional shape and direction extension to the left and right, be linked between the left side plate 18A, and can cooperate, break away from side's installation shaft 31B of scraper bowl 31 described later.
And, under with state with left side plate 18A clamping rocking arm 14 front of fixed claw parts 18, by connecting pin 17 is inserted the pin-and-hole 18B of logical fixed claw parts 18 and the 14B of hub portion of rocking arm 14, can be that the center is installed in rocking arm 14 front with the fixed claw parts 18 of construction appliance handler 16 rotationally with connecting pin 17.
The 19th, be configured to the movable pawl parts that rotate with respect to fixed claw parts 18, these movable pawl parts 19 are for example to have with formations such as steel plate and to be held in state between fixed claw parts 18 each side plate 18A to link the structure that all-in-one-piece links parts (do not have and illustrate) between at left side plate 19A, 19A that left and right directions is faced, with each side plate 19A.
Here, butt side at each the side plate 19A that constitutes movable pawl parts 19, offered pin-and-hole 19B, by the 3rd connecting pin 29 described later being inserted the pin-and-hole 18C of this pin-and-hole 19B and fixed claw parts 18, movable pawl parts 19 become Jie and are installed in rotation on structure on the fixed claw parts 18 by the 3rd connecting pin 29.
In addition, front at movable pawl parts 19, be provided with the split pipe 19C with semi arch cross sectional shape and direction extension to the left and right regularly, this split pipe 19C is attached between the left side plate 19A, and can cooperate, break away from another installation shaft 31C of scraper bowl 31 described later.
The 20th, be located at the auxiliary cylinder between fixed claw parts 18 and the movable pawl parts 19, this auxiliary cylinder 20 is oil cylinders that movable pawl parts 19 are rotated with respect to fixed claw parts 18.Here, auxiliary cylinder 20 by cylinder barrel 20A, slidably be located at piston in this cylinder barrel 20A (not having diagram), be fixed on the piston and front constitutes from the piston rod 20B that cylinder barrel 20A protrudes.
And, with pin 21 end side of cylinder barrel 20A and each side plate 18A keying of fixed claw parts 18 are closed rotationally, with pin 22 front of piston rod 20B and each side plate 19A keying of movable pawl parts 19 are closed rotationally.Therefore, constituted and utilized the piston rod 20B that makes auxiliary cylinder 20 flexible, can make movable pawl parts 19 is that rotate at the center with the 3rd connecting pin 29, so that structure approaching, that leave fixed claw parts 18.
The 23rd, be fixedly set in the plinth that the connection oil pipeline on the cylinder barrel 20A of auxiliary cylinder 20 is used, in this plinth 23, formed passage to auxiliary cylinder 20 row's of giving hydraulic oil.Here, be connected by fluid pressure line 23A between the end side grease chamber of plinth 23 and cylinder barrel 20A, be connected by fluid pressure line 23B between the piston rod side grease chamber of plinth 23 and cylinder barrel 20A.And, on plinth 23, as shown in Figure 8, be provided with two passage 23C, 23C being used for to auxiliary cylinder 20 row's of giving hydraulic oil, on this each passage 23C, connecting the front end position of hydraulic hose 35 by swivel joint 37 described later.
The 24th, with the link mechanism that rocking arm 14 front and construction appliance handler 16 are connected, this link mechanism 24 utilizes the flexible of construction appliance oil cylinder 30 described later, can construction appliance handler 16 be rotated in rocking arm 14 front.And link mechanism 24 is made of the 1st link rod the 25, the 2nd link rod 27 described later.
25, the 25th, the 1st link rod about establishing from left and right directions clamping rocking arm 14, each the 1st link rod 25 is made of the steel plate that is bent to ヘ word shape.And the butt side of the 1st link rod 25 is combined on the 14C of hub portion of rocking arm 14 with the 1st connecting pin 26 keying rotationally.
The 27th, constitute the 2nd link rod of link mechanism 24 with the 1st link rod 25, the 2nd link rod 27 as shown in figure 10, by having at left and right directions at interval the cylindric butt side hub 27A of portion, the 27A of configuration, have at interval and the cylindric front hub 27B of portion, the 27B of configuration, the intermediate linking part 27C that is linked between this each butt side hub 27A of portion and each the front hub 27B of portion constitute at left and right directions equally.
And as Figure 6 and Figure 7, the butt side hub 27A of portion the 2nd connecting pin 28 of the 2nd link rod 27 and the piston rod 30B keying of the 1st link rod 25 front and construction appliance oil cylinder 30 lump together.On the other hand, on the front hub 27B of portion of the 2nd link rod 27, pin-and-hole 18C, the pin-and-hole 19B that reaches movable pawl parts 19 that the 3rd connecting pin 29, the 3 connecting pins 29 pass the fixed claw parts 18 that constitute construction appliance handler 16 have been inserted.
Therefore, the 2nd connecting pin 28, with the piston rod 30B of the butt side hub 27A of portion of the 1st link rod 25 front, the 2nd link rod 27, construction appliance oil cylinder 30 mutually keying rotationally close.In addition, the 3rd connecting pin 29 with the fixed claw parts 18 of the front hub 27B of portion of the 2nd link rod 27, construction appliance handler 16, and movable pawl parts 19 mutually keying rotationally close.And, be the axially position midway that sleeve 39 described later can be passed rotationally the 3rd connecting pin 29, and the structure between each front hub 27B of portion of the 2nd link rod 27.
30 are provided in a side of the construction appliance oil cylinder between rocking arm 14 and the link mechanism 24, this construction appliance oil cylinder 30 by end side by and the cylinder barrel 30A that closes of the cylinder bracket 14A keying of rocking arm 14, slidably be located at piston (not having diagram) in this cylinder barrel 30A, be fixed on the piston and front constitutes from the piston rod 30B that cylinder barrel 30A protrudes.Here, the front of piston rod 30B is closed by the front of the 2nd connecting pin 28 and the 1st link rod 25 and the butt side hub 27A of the portion keying rotationally of the 2nd link rod 27.
And, construction appliance oil cylinder 30 utilizes and makes piston rod 30B flexible, making the 1st link rod 25 is that rotate at the center with the 1st connecting pin 26, and the rotation of the 1st link rod 25 passed to the 2nd link rod 27, so that make the construction appliance handler 16 that is combined in the front of the 2nd link rod 27 by the 3rd connecting pin 29, be that rotate at the center with connecting pin 17 in the front of rocking arm 14.
The 31st, be installed in the working scraper bowl of excavation on the construction appliance handler 16, this scraper bowl 31 constitutes construction appliance with the construction appliance handler 16 of the front that is installed in rocking arm 14.And in the butt side of scraper bowl 31, protrusion is provided with at the left and right sides carriage 31A that left and right directions is faced, and between the carriage 31A of this left and right sides, has fixed two installation shaft 31B, 31C of direction extension to the left and right with leaving mutually.
And, be that the split pipe 18D that will be located on the fixed claw parts 18 of construction appliance handler 16 cooperates with a side installation shaft 31B, the split pipe 19C that is located on the movable pawl parts 19 is cooperated with the opposing party's installation shaft 31C, so that can scraper bowl 31 can be installed in with loading and unloading the structure of rocking arm 14 front by construction appliance handler 16.
The 32nd, the fluid pressure line that extends along the length direction of rocking arm 14, this fluid pressure line 32, its butt side is connected with hydraulic power sources such as hydraulic pump (do not have diagram) on being loaded in upper rotating body 3, front is connected with the auxiliary cylinder 20 of construction appliance handler 16, and gives row hydraulic oil from hydraulic power source to auxiliary cylinder 20.And fluid pressure line 32 is made of each oil pipe 33 described later, each connector portions 34, each hydraulic hose 35.
33, the 33rd, be fixedly installed on two hydraulic tubes of rocking arm 14 upper face sides, this each hydraulic tube 33 is made of hollow metal tube etc., and extends to its position midway as Fig. 2～its length direction along rocking arm 14 shown in Figure 5.At this moment, the butt side of each hydraulic tube 33 presses flexible pipe etc. (not having diagram) to be connected with hydraulic power source on being loaded into upper rotating body 3 by tucking in.On the other hand, the front end position 33A of each hydraulic tube 33, from the position midway of rocking arm 14 by towards cantilever 12 and to the direction bending opposite with construction appliance handler 16.
34, the 34th, be located at the joint of hydraulic tube 33 front end position 33A respectively, this connector portions 34 is the joints that are connected between hydraulic tube 33 and the hydraulic hose described later 35.And as shown in Figure 3, each connector portions 34 is the toroidal bend 35A of portion described later for the position midway at hydraulic hose 35 forms, and it extends to oblique rear towards cantilever 12 with the state that the length direction to rocking arm 14 tilts.
35, the 35th, the position is to two hydraulic hoses the front end position midway for the length direction that constitutes rocking arm 14 from fluid pressure line 32, and each hydraulic hose 35 constitutes by having flexual rubber hose etc., and 14D extends to its length direction above rocking arm 14.And, the butt position of hydraulic hose 35 is connected with connector portions 34 on being arranged on each hydraulic tube 33 front end position 33A, the front end position of hydraulic hose 35 is by swivel joint 37 described later, is connected with plinth 23 on the auxiliary cylinder 20 that is located at construction appliance handler 16.
In addition, the position midway of hydraulic hose 35, left at length direction at interval set on rocking arm 14 two the flexible pipe holding members 36,36 on the 14D keep.Here, flexible pipe holding member 36 as shown in Figure 9, is to leave the framework that is word shape of crossing over two hydraulic hoses 35 with gap, and is fixed on methods such as welding on the top 14D of rocking arm 14.And, flexible pipe holding member 36, it is to allow two hydraulic hoses 35 to move to the length direction of rocking arm 14, but limits the parts that it moves to the width of rocking arm 14.
35A, 35A are separately positioned on hydraulic hose 35 bend at position midway, this bend 35A, as Fig. 3 and shown in Figure 5, by turning back towards construction appliance handler 16, so that between connector portions 34 and flexible pipe holding member 36, form the roughly bending of ring-type from the connector portions 34 that is installed on the hydraulic tube 33 front end position 33A of cantilever 12 bendings.And, the bend 35A of each hydraulic hose 35, as Fig. 2 and shown in Figure 4, construction appliance handler 16 stretching when rocking arm 14 front are rotated because of construction appliance oil cylinder 30, along with relaxing that construction appliance handler 16 rotates, can enlarge the distortion of diameter reduction ground according to each hydraulic hose 35 as Fig. 3 and ground shown in Figure 5.
Promptly, for example shown in Figure 2, when construction appliance oil cylinder 30 elongation, and construction appliance handler 16 with scraper bowl 31 when rotating near cantilever 12 directions (excavation direction), because of the lax of hydraulic hose 35 diminishes, so bend 35A diameter reduction ground distortion as shown in Figure 3.On the other hand, when construction appliance oil cylinder 30 shortens, and construction appliance handler 16 with scraper bowl 31 when leaving cantilever 12 directions (uninstall direction) and rotate, because of the lax change of hydraulic hose 35 is big, so bend 35A enlarged ground distortion as shown in Figure 5.In addition, when the left and right side at rocking arm 14 is provided with (not the having diagram) such as guide strips of clamping hydraulic hose 35,, can suppresses bend 35A and expose from the side of rocking arm 14 owing to when the bend 35A of hydraulic hose 35 enlarged, contact with this guide strip.
Like this, even each hydraulic hose 35 is along with the rotation of construction appliance handler 16 produces lax, the distortion that also can utilize bend 35A to enlarge diameter reduction absorbs the lax of this hydraulic hose 35, the structure that formation can suppress that hydraulic hose 35 exposes from the side of rocking arm 14 and interfere with the obstruction that is present in around this rocking arm 14.
37,37 be mounted in the plinth 23 be located on the auxiliary cylinder 20 respectively give swivel joint on the discharge opeing pressure oil passage 23C, this swivel joint 37 is given each hydraulic oil that the leading section potential energy of hydraulic hose 35 is connected plinth 23 rotationally on row's passage 23C.
Here, as shown in Figure 8, if with the shaft centre line of the 3rd connecting pin 29 that combines between the 2nd link rod 27 and the construction appliance handler 16 is A-A, then to constitute with the axis B-B parallel with the shaft centre line A-A of the 3rd connecting pin 29 be the structure of center with respect to plinth 23 rotations to each swivel joint 37.Therefore, as Figure 6 and Figure 7, when construction appliance handler 16 when the front of rocking arm 14 is rotated, swivel joint 37 rotates along with construction appliance handler 16 on one side and rotates with respect to plinth 23, the hydraulic oil of this plinth 23 given row passage 23C and each hydraulic hose 35 between be connected on one side.Therefore, it is crooked excessively along with the rotation of construction appliance handler 16 to suppress each hydraulic hose 35, and can improve the durability of this hydraulic hose 35.
The 38th, can be located at rotationally and be incorporated into the 2nd link rod 27 that constitutes link mechanism 24 and the fluid pressure line fixed part on the 3rd connecting pin 29 between the construction appliance handler 16, this fluid pressure line fixed part 38 is to be fixed on each hydraulic hose 35 of extending to the auxiliary cylinder 20 of construction appliance handler 16 from rocking arm 14 front ends parts at position midway.Here, fluid pressure line fixed part 38 utilizes the 3rd connecting pin 29 can be individually to relatively rotate with each front hub 27B of portion of the 2nd link rod 27, and as shown in figure 10, it is made of sleeve 39 described later, threaded block 40, each hose clip 41.
The 39th, as the sleeve of fluid pressure line fixed part 38 bases, this sleeve 39 is formed the cylinder that different parts with each the front hub 27B of portion that constitutes the 2nd link rod 27 constitute.And sleeve 39 is configured between each front hub 27B of portion of the 2nd link rod 27, and can be through the axial position midway of the 3rd connecting pin 29 rotationally.And threaded block 40 one that will be used for each hose clip 41 of screw thread stop aftermentioned with methods such as welding are located at the outer circumference surface of sleeve 39.
41, the 41st, as the hose clip that the position midway of each hydraulic hose 35 is installed in clamping part on the threaded block 40, this hose clip 41, for example it utilizes OBL thin plate to be bent to P word shape and forms.And hose clip 41 is tightened on the threaded block 40 by bolt 42 with clamping hydraulic flexible pipe 35 state at position midway.
Like this, each hydraulic hose 35 that extends to the auxiliary cylinder 20 of construction appliance handler 16 from rocking arm 14 front is the position midway, with the state that is clamped by hose clip 41, is fixed on the threaded block 40 of the sleeve 39 that can rotate with respect to the 3rd connecting pin 29.Therefore, as Figure 6 and Figure 7, when construction appliance handler 16 when the front end of rocking arm 14 rotates, because the sleeve 39 of fluid pressure line fixed part 38 rotates with respect to sleeve 39, thus can often keep being fixed on the fluid pressure line fixed part 38 each hydraulic hose 35 midway the position, and be connected certain distance between each hydraulic hose 35 front end position on the plinth 23 of auxiliary cylinder 20.Consequently, can suppress each hydraulic hose 35 position midway, along with the rotation of construction appliance handler 16 very macrobending and with frictions such as construction appliance handler 16, become the structure that can protect this hydraulic hose 35.
The construction equipment 11 of present embodiment has aforesaid structure, below, its action is described.
At first, flexible by the auxiliary cylinder 20 that makes construction appliance handler 16, the split pipe 18D of fixed claw parts 18 is cooperated with side's installation shaft 31B of scraper bowl 31, the split pipe 19C of movable pawl parts 19 is cooperated with the opposing party's installation shaft 31C of scraper bowl 31 described later.Like this, can be rapidly and easily scraper bowl 31 is installed in the front of rocking arm 14 by construction appliance handler 16.
Then, when construction appliance oil cylinder 30 was stretched, the 1st link rod 25 of link mechanism 24 was that rotate at the center with the 1st connecting pin 26, and the rotation of the 1st link rod 25 is passed to construction appliance handler 16 by the 2nd link rod 27.Therefore, as Fig. 2 and shown in Figure 4, construction appliance handler 16, with connecting pin 17 is that rotate in the front of rocking arm 14 at the center, 31 of scraper bowls that are installed on the construction appliance handler 16 rotate between near the unloading attitude (attitude of Fig. 4) of holding attitude (attitude of Fig. 2) high, leaving from cantilever 12 of cantilever 12, carry out the excavation construction of the cubic metre of earth and stone etc. to utilize scraper bowl 31.
Here, connect the connector portions 34 be fixedly installed on each hydraulic tube 33 on the rocking arm 14, and be arranged on each hydraulic hose 35 between auxiliary cylinder 20 plinths 23 on the construction appliance handler 16, along with construction appliance handler 16 produces lax in the rotation of rocking arm 14 front.
To this, in the present embodiment, adopted on the 3rd connecting pin 29 that will combine between the 2nd link rod 27 front and the construction appliance handler 16, be provided with by be through rotationally sleeve 39 on the 3rd connecting pin 29, with clamp each hydraulic hose 35 midway the state at position be installed in the fluid pressure line fixed part 38 that the hose clip 41 on the threaded block 40 of sleeve 39 constitutes, and utilize this fluid pressure line fixed part 38 to fix each hydraulic hose 35 structure at position midway.
Therefore, as Figure 6 and Figure 7, when construction appliance handler 16 when rocking arm 14 front are rotated, because of the sleeve 39 of fluid pressure line fixed part 38 rotates with respect to the 3rd connecting pin 29, thus can almost keep definitely being fixed on the fluid pressure line fixed part 38 each hydraulic hose 35 midway the position, and be connected distance between each hydraulic hose 35 front end position on the plinth 23 of auxiliary cylinder 20.Consequently, can suppress each hydraulic hose 35 midway the position along with the rotation of construction appliance handler 16 crooked significantly and with friction such as construction appliance handler 16, thereby can protect this hydraulic hose 35.
In addition, adopt the position midway of each hydraulic hose 35 that extends at 14D above rocking arm 14, between the connector portions 34 of hydraulic tube 33 and the flexible pipe holding member 36 that is located at 14D above the rocking arm 14, the structure of the bend 35A of bending in the form of a ring is set.
Therefore, as shown in Figure 2, because of construction appliance handler 16 with scraper bowl 31 to rotating near cantilever 12 directions (excavation direction), and during lax the diminishing of hydraulic hose 35, the such diameter reduction of each bend 35A shown in can image pattern 3.On the other hand, as shown in Figure 4, when because of construction appliance handler 16 rotates to leaving cantilever 12 directions (uninstall direction) with scraper bowl 31, and the lax change of hydraulic hose 35 is when big, the such enlarged of each bend 35A shown in can image pattern 5.
Like this, even each hydraulic hose 35 is along with the rotation generation of construction appliance handler 16 is lax, the distortion that also can utilize bend 35A to enlarge diameter reduction absorbs the lax of this hydraulic hose 35.Therefore, can suppress to produce each lax hydraulic hose 35 and expose and interfere, thereby protect this hydraulic hose 35 reliably with the obstruction that is present in around this rocking arm 14 to the side of rocking arm 14.
In addition, on the plinth 23 of the auxiliary cylinder 20 that is arranged at construction appliance handler 16, swivel joint 37 has been installed, and rotationally the front end position of each hydraulic hose 35 has been connected with plinth 23 by swivel joint 37.
Therefore, because swivel joint 37 rotates with respect to plinth 23 along with the rotational action of construction appliance handler 16 on one side, on one side the hydraulic oil of this plinth 23 is given between row's passage 23C and each hydraulic hose 35 and be connected, so can suppress front quilt bending excessively of each hydraulic hose 35, thereby can improve the durability of this hydraulic hose 35 along with the rotational action of construction appliance handler 16.
In addition, in the above-described embodiment,, be that example is illustrated with the construction appliance handler 16 that possesses auxiliary cylinder 20 as the fluid pressure type servicing unit that is installed in rocking arm 14 front ends.But, the present invention is not limited to this, shown in the modified example as shown in figure 11, also can adopt the grab bucket device 53 that will utilize a pair of tine 52,52 of auxiliary cylinder 51 open and closes as the fluid pressure type servicing unit, and utilize hydraulic hose 35 that fluid pressure line fixed part 38 will be connected with this auxiliary cylinder 51 to be rotatably mounted to structure on the 3rd connecting pin 29 in the position midway.
In addition, in the above-described embodiment, be installed in the plinth 23 that connecting line is used on the auxiliary cylinder 20 of construction appliance handler 16, and swivel joint 37 is installed in the hydraulic oil that is arranged on this plinth 23, and to give the situation on row's passage 23C be example.But the present invention is not limited to this, for example also can adopt and not use plinth 23, and swivel joint 37 is installed with giving on row's passage for row's passage at the hydraulic oil of the grease chamber, bottom side of auxiliary cylinder 20 opening respectively, and the front end position of hydraulic hose 35 is connected structure on this swivel joint 37 at the hydraulic oil of piston rod side grease chamber opening.
Claims (7)
1. the construction equipment of a building machinery, it has: be installed on the car body of building machinery can the pitching action cantilever, be installed in the rocking arm of this cantilever front energy pitching action, utilization can be installed in the auxiliary cylinder of this rocking arm front rotationally as construction appliance or its part and the fluid pressure type servicing unit that moves, the link mechanism that connects this fluid pressure type servicing unit and described rocking arm, make the construction appliance oil cylinder of described fluid pressure type servicing unit by this link mechanism in described rocking arm front rotation
Described link mechanism, by the keying of butt side being combined in the 1st link rod on the rocking arm, with the 2nd connecting pin the butt side being merged with the 1st link rod front and the keying of construction appliance oil cylinder and with the 3rd connecting pin the 2nd link rod that front combines with the fluid pressure type servicing unit is constituted, it is characterized in that with the 1st connecting pin:
Have the fluid pressure line that the front of extending along described rocking arm length direction is connected with described auxiliary cylinder and be arranged to and around described the 3rd connecting pin rotation and fix the described fluid pressure line fluid pressure line fixed part at position midway.
2. the construction equipment of building machinery according to claim 1, it is characterized in that: the hub portion that adopts described the 2nd link rod to have the axial both end sides of passing described the 3rd connecting pin, described fluid pressure line fixed part is with described the 3rd connecting pin and can be installed in the structure of described hub portion with relatively rotating individually.
3. the construction equipment of building machinery according to claim 1 and 2 is characterized in that: adopt described fluid pressure line fixed part by the rotating sleeve that passes described the 3rd connecting pin, be located at threaded block on this sleeve, be installed on this threaded block and structure that the clamping part that fluid pressure line is clamped constitutes.
4. according to the construction equipment of claim 1,2 or 3 described building machineries, it is characterized in that: adopt the structure that the rotating swivel joint that connects described fluid pressure line front end position is set on described auxiliary cylinder.
5. according to the construction equipment of claim 1,2 or 3 described building machineries, it is characterized in that: adopt the base that connects described fluid pressure line is set on described auxiliary cylinder, being provided with on this base can be being center structure that rotate, that be connected the swivel joint at described fluid pressure line front end position with the axis of described the 3rd connecting pin axially parallel.
6. according to the construction equipment of claim 1,2,3,4 or 5 described building machineries, it is characterized in that: adopt constituting by the hydraulic hose that above described rocking arm, extends to the front end position at the position in the described fluid pressure line midway, on this hydraulic hose, be provided with the structure of the bend that can be out of shape according to the rotation of described fluid pressure type servicing unit from described rocking arm.
7. according to the construction equipment of claim 1,2,3,4 or 5 described building machineries, it is characterized in that: adopt described fluid pressure line by the butt side from described rocking arm partway the position along front end position that described rocking arm extends to the fluid pressure line of described cantilever bending, the connector portions that is located at this fluid pressure line front end position, the butt position of extending above described rocking arm is connected with this connector portions and the front end position constitutes with the hydraulic hose that described auxiliary cylinder is connected
Be provided with from described connector portions and turn back and the structure of the bend that can be out of shape according to the rotation of described fluid pressure type servicing unit in the position midway at described hydraulic hose to described auxiliary cylinder.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003407810 | 2003-12-05 | ||
| JP2003407810A JP4213576B2 (en) | 2003-12-05 | 2003-12-05 | Construction equipment working equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1624254A true CN1624254A (en) | 2005-06-08 |
| CN1283883C CN1283883C (en) | 2006-11-08 |
Family
ID=34729741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100956079A Expired - Fee Related CN1283883C (en) | 2003-12-05 | 2004-12-02 | Construction device of building machinery |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4213576B2 (en) |
| KR (1) | KR100639729B1 (en) |
| CN (1) | CN1283883C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101845833A (en) * | 2009-03-27 | 2010-09-29 | 日立建机株式会社 | Two-member connecting device |
| CN102224302B (en) * | 2008-10-15 | 2013-06-19 | 克拉克设备公司 | Integral power or electrical conduit coupler |
| CN104723277A (en) * | 2015-03-26 | 2015-06-24 | 中南林业科技大学 | Rapid connector applicable to garden machines |
| CN105051290A (en) * | 2013-05-09 | 2015-11-11 | 日立建机株式会社 | Construction equipment |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101335239B1 (en) | 2011-09-20 | 2013-11-29 | 상진옥 | Crusher bucket |
| JP7183116B2 (en) * | 2019-06-04 | 2022-12-05 | 株式会社クボタ | work machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001032316A (en) * | 1999-07-22 | 2001-02-06 | Kobelco Contstruction Machinery Ltd | Attachment piping structure for hydraulic backhoe |
| JP4253133B2 (en) * | 2001-02-09 | 2009-04-08 | ヤンマー株式会社 | Attachment system hydraulic system protection structure |
-
2003
- 2003-12-05 JP JP2003407810A patent/JP4213576B2/en not_active Expired - Lifetime
-
2004
- 2004-11-22 KR KR1020040095579A patent/KR100639729B1/en active IP Right Grant
- 2004-12-02 CN CNB2004100956079A patent/CN1283883C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102224302B (en) * | 2008-10-15 | 2013-06-19 | 克拉克设备公司 | Integral power or electrical conduit coupler |
| CN101845833A (en) * | 2009-03-27 | 2010-09-29 | 日立建机株式会社 | Two-member connecting device |
| CN101845833B (en) * | 2009-03-27 | 2014-09-03 | 日立建机株式会社 | Two-member connecting device |
| CN105051290A (en) * | 2013-05-09 | 2015-11-11 | 日立建机株式会社 | Construction equipment |
| CN105051290B (en) * | 2013-05-09 | 2017-05-10 | 株式会社日立建机Tierra | Construction equipment |
| CN104723277A (en) * | 2015-03-26 | 2015-06-24 | 中南林业科技大学 | Rapid connector applicable to garden machines |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005163495A (en) | 2005-06-23 |
| KR100639729B1 (en) | 2006-10-30 |
| KR20050054823A (en) | 2005-06-10 |
| CN1283883C (en) | 2006-11-08 |
| JP4213576B2 (en) | 2009-01-21 |
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Granted publication date: 20061108 Termination date: 20161202 |