CN104234101B - Multi-stage expansion arm assembly and there is the deep excavator of multi-stage expansion arm assembly - Google Patents
Multi-stage expansion arm assembly and there is the deep excavator of multi-stage expansion arm assembly Download PDFInfo
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- CN104234101B CN104234101B CN201410260802.6A CN201410260802A CN104234101B CN 104234101 B CN104234101 B CN 104234101B CN 201410260802 A CN201410260802 A CN 201410260802A CN 104234101 B CN104234101 B CN 104234101B
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- urceolus
- pulley
- flexible
- utensil
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Classifications
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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
- E02F3/30—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
- E02F3/304—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 with the dipper-arm slidably mounted on the boom
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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
- E02F3/30—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
- E02F3/306—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 with telescopic dipper-arm or boom
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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
-
- 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
-
- 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
- E02F9/14—Booms only for booms with cable suspension arrangements; Cable suspensions
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Jib Cranes (AREA)
- Earth Drilling (AREA)
Abstract
The present invention provides multi-stage expansion arm assembly and deep excavator, it is possible to the flexible movable sheave that suppression is arranged on pulley installation utensil is provided with the prominent bigger situation of lateral surface of telescoping cylinder among urceolus.Pulley is installed utensil (29) and being included: the tie-beam (30) of the left and right being organized in pairs in the left and right sides across telescoping cylinder (25)；The flexible pulley support axle (30B) being located on each tie-beam and press-in pulley support axle (30C)；And across telescoping cylinder connect about tie-beam between upper armite (31) and lower armite (32).Thereby, it is possible to the flexible movable sheave (40) being supported on pulley installation utensil (29) is arranged in the position more more outward than the left surface of urceolus (13) (13C).Thus, it is able to ensure that the external diameter of flexible movable sheave (40) is bigger, and flexible movable sheave prominent bigger situation in (13A) side after urceolus (13) can be suppressed, it is possible to use the flexible movable sheave being relatively large in diameter.
Description
Technical field
The present invention relates to such as be suitable for deep-cutting in civil engineering the multistage telescopic arm dress of the operation on ground
Put and have the deep excavator of multi-stage expansion arm assembly.
Background technology
It is said that in general, in the case of excavating vertical hole the most deeper in civil engineering, be suitable for use deep
Dig excavator.This deep excavator includes: can vehicle body voluntarily；Can be located to elevating movement on this vehicle body
Swing arm；And it is located at the multi-stage expansion arm assembly of the front of this swing arm.This multi-stage expansion arm assembly includes:
There is the urceolus arranged in the way of vertically extending and be telescopically received in the inner side of this urceolus
The telescopic arm of multistage inner core；The flexible fixed block being fixedly installed on urceolus；Length along urceolus
The telescoping cylinder that degree direction is arranged；The pulley being arranged on this telescoping cylinder and move along the length direction of urceolus is installed
Utensil；It is located at this pulley and the flexible movable sheave on utensil is installed；End side is engaging on urceolus and another
Side is engaging on inner core, and position, midway is wound in flexible fixed block and flexible movable sheave
Flexible rope；It is fixedly installed on the press-in fixed block of the lower side of urceolus；Using movably than flexible
Pulley position more on the lower is located at pulley and installs the press-in movable sheave on utensil；And end side is locking
On urceolus and another side is engaging on outermost inner core through the inner side of urceolus, and position, midway winding
Press-in rope on press-in fixed block and press-in movable sheave.
According in the deep excavator of the prior art, by being arranged at being held vertically throughout relative to ground
Telescoping cylinder is reduced, so that the inner core of telescopic arm is from urceolus downwards under the state of the telescopic arm of swing arm front
Elongation.In the leading section (bottom) of inner core, clamshell bucket is installed, it is possible to utilize this clamshell bucket to excavate sand
Soil.
After having held the sandy soil excavated by clamshell bucket, flexible rope is utilized to incite somebody to action making telescoping cylinder elongation
Inner core rises under the state in urceolus, opens clamshell bucket such that it is able to the sandy soil excavated are discharged to institute
The place (with reference to patent documentation 1) needed.
Prior art literature
Patent documentation
Patent documentation 1: Japanese Patent Publication 2-101845 publication
Summary of the invention
The problem that invention is to be solved
It addition, in the deep excavator according to above-mentioned prior art, after urceolus utilizes, above, left side
Face and right flank are formed as the angle tubular of cross section tetragon, wherein, after be arranged on the front of swing arm, front
Face with should after the most facing, left surface and right flank are across below and above at left and right directions
Upper facing.Further, it is arranged on pulley and the flexible movable sheave on utensil and press-in movable sheave is installed,
It is arranged in front side above in the left surface of urceolus and the interval of right flank.
Therefore, according in the deep excavator of prior art, flexible movable sheave is from being provided with telescoping cylinder
The lateral surface (above) of urceolus prominent relatively big, therefore the diameter of flexible movable sheave is set to less.
Thus, according in the deep excavator of prior art, there is be wound in flexible movable sheave flexible
Problem that is big and that cause its life-span to decline is become by the curvature of rope.
The present invention makes in view of above-mentioned problem of the prior art, its objective is to provide a kind of multi-stage expansion
Arm assembly and there is the deep excavator of this multi-stage expansion arm assembly, it is possible to suppression is arranged on pulley and installs utensil
On flexible movable sheave from the prominent bigger situation of the lateral surface of urceolus, and flexible rope can be extended
Life-span.
Means for solving the above
In order to solve the problems referred to above, the present invention is applicable to a kind of multi-stage expansion arm assembly, and this multistage telescopic arm fills
Put and have: telescopic arm, there is vertically extending urceolus and can telescopingly receive over along its length
Multistage inner core in the inner side of this urceolus；Telescoping cylinder, along the length side of the above-mentioned urceolus constituting this telescopic arm
To configuring；Flexible fixed block, is fixedly installed on above-mentioned urceolus；Utensil installed by pulley, installs
On this telescoping cylinder, and by relative to above-mentioned flexible fixed block close to or separation in the way of along above-mentioned
The length direction of urceolus moves；Flexible movable sheave, is located at this pulley and installs on utensil；Flexible rope,
End side is engaging on above-mentioned urceolus and another side is engaging among above-mentioned inner core the inner core becoming inner side
On, and position is wound in above-mentioned flexible fixed block and flexible movable sheave halfway；Press-in is with solid
Fixed pulley, is fixedly installed on the lower side of above-mentioned urceolus；Press-in movable sheave, more flexible with can than above-mentioned
Movable pulley position more on the lower is located at above-mentioned pulley and installs on utensil；And press-in rope, end side card
It is scheduled on above-mentioned urceolus and another side is engaging among above-mentioned multistage inner core through the inner side of above-mentioned urceolus
It is positioned on outermost outermost inner core, and position, midway is wound on above-mentioned press-in fixed block and above-mentioned
In press-in movable sheave.
And, the invention of scheme 1 is characterised by, above-mentioned pulley install utensil include: with above-mentioned urceolus
The orthogonal direction of length direction on, be arranged in the both sides across above-mentioned telescoping cylinder, and with above-mentioned telescoping cylinder even
A pair tie-beam connect；The length direction of this pair tie-beam separates and links between above-mentioned each tie-beam
Armite；And be separately provided on above-mentioned each tie-beam along the length direction of above-mentioned each tie-beam,
And support the flexible pulley support axle of above-mentioned flexible movable sheave and support above-mentioned press-in with movable
The press-in of pulley pulley support axle.
The invention of scheme 2 is characterised by, is provided with guide rail on above-mentioned urceolus, and this guide rail is arranged in above-mentioned cunning
Wheel is installed between each tie-beam and the above-mentioned telescoping cylinder of utensil, and according to the flexible of above-mentioned telescoping cylinder along
The length direction of above-mentioned urceolus guides above-mentioned pulley to install each tie-beam of utensil.
The invention of scheme 3 is characterised by, installs at above-mentioned pulley and is provided with slip between utensil and above-mentioned guide rail
Parts, this slide unit makes above-mentioned pulley installation utensil successfully move along above-mentioned guide rail.
The invention of scheme 4 is characterised by, installs at above-mentioned pulley and is provided with slide unit maintaining part on utensil,
This slide unit maintaining part keeps above-mentioned in the way of can installing along the length direction of above-mentioned guide rail, to dismantle
Slide unit.
The invention of scheme 5 is applicable to a kind of deep excavator with multi-stage expansion arm assembly, and this deep-cuts excavation
Machine include can vehicle body voluntarily, can be located to elevating movement the swing arm on this vehicle body and be located at this and move
The multi-stage expansion arm assembly of the front of arm, above-mentioned multi-stage expansion arm assembly has: telescopic arm, has along upper
Lower direction extend urceolus and can be telescopically received in along its length this urceolus inner side multistage in
Cylinder；Telescoping cylinder, the length direction along the above-mentioned urceolus constituting this telescopic arm configures；Flexible with fixing
Pulley, is fixedly installed on above-mentioned urceolus；Utensil installed by pulley, is arranged on this telescoping cylinder, and with phase
Mode that is above-mentioned flexible close with fixed block or that separate is moved along the length direction of above-mentioned urceolus；Stretch
Contracting movable sheave, is located at this pulley and installs on utensil；Flexible rope, end side is engaging in above-mentioned urceolus
Upper and another side is engaging among above-mentioned inner core on the inner core becoming inner side, and position, midway is wound on
On above-mentioned flexible fixed block and flexible movable sheave；Press-in fixed block, is fixedly installed on above-mentioned
The lower side of urceolus；Press-in movable sheave, flexible is setting with movable sheave position more on the lower than above-mentioned
Install on utensil at above-mentioned pulley；And press-in rope, end side is engaging on above-mentioned urceolus and the other end
Side is engaging among above-mentioned multistage inner core is positioned at outermost outermost inner core through the inner side of above-mentioned urceolus
On, and position is wound in above-mentioned press-in fixed block and above-mentioned press-in movable sheave halfway.
And, this deep excavator is characterised by, above-mentioned pulley install utensil include: with above-mentioned urceolus
The orthogonal direction of length direction on, be arranged in the both sides across above-mentioned telescoping cylinder, and with above-mentioned telescoping cylinder even
A pair tie-beam connect；The length direction of this pair tie-beam separates and links between above-mentioned each tie-beam
Armite；And be separately provided on above-mentioned each tie-beam along the length direction of above-mentioned each tie-beam,
And support the flexible pulley support axle of above-mentioned flexible movable sheave and support above-mentioned press-in with movable
The press-in of pulley pulley support axle.
The invention of scheme 6 is characterised by, is provided with guide rail on above-mentioned urceolus, and this guide rail is arranged in above-mentioned cunning
Wheel is installed between each tie-beam and the above-mentioned telescoping cylinder of utensil, and according to the flexible of above-mentioned telescoping cylinder along
The length direction of above-mentioned urceolus guides above-mentioned pulley to install each tie-beam of utensil, installs utensil at above-mentioned pulley
And being provided with slide unit between above-mentioned guide rail, this slide unit makes above-mentioned pulley install utensil along above-mentioned guide rail
Successfully move, install at above-mentioned pulley and be provided with slide unit maintaining part on utensil, this slide unit maintaining part
Above-mentioned slide unit is kept in the way of can installing along the length direction of above-mentioned guide rail, to dismantle.
The present invention has the advantages that.
According to the invention of scheme 1, owing to pulley at the length direction with urceolus is just installing each tie-beam of utensil
It is arranged in the both sides across telescoping cylinder, therefore, it is possible to the flexible sliding of each tie-beam will be supported on the direction handed over
Stretching in wheel support shaft is used movable sliding with movable sheave and the press-in being supported on press-in pulley support axle
Wheel is arranged in the outside of urceolus.Thereby, it is possible to suppress flexible movable sheave from the urceolus being provided with telescoping cylinder
The prominent bigger situation of lateral surface (being provided with the face of telescoping cylinder).It is as a result, it is possible to use and be relatively large in diameter
The flexible curvature reducing flexible rope by movable sheave, therefore, it is possible to extend the life-span of flexible rope.
According to the invention of scheme 2, each tie-beam of utensil installed by pulley can be by by rail guidance all the time
Constant track moves.Thereby, it is possible to according to the expanding-contracting action of telescoping cylinder, be wound effectively
Flexible rope in flexible movable sheave and the press-in rope being wound in press-in movable sheave
Winding and unreel action.
Being additionally, since telescoping cylinder to be connected on each tie-beam of pulley installation utensil, therefore telescoping cylinder self is also
It is supported for move along guide rail.Thus, telescoping cylinder can be only along axially when carrying out expanding-contracting action
(telescopic direction) is subjected to displacement, and will not produce the displacement (skew) in the direction beyond axial and rock.
Its result, even if in the case of the telescoping cylinder employing long size, also can suppress buckling of telescoping cylinder, energy
Enough guarantee that excavating depth is bigger.And, by utilizing buckling of guide rail suppression telescoping cylinder, it is not necessary to use pressure
The telescoping cylinder that Qu Qiangdu is high and weight is big, it is possible to reduce the weight that multi-stage expansion arm assembly is overall.
According to the invention of scheme 3, when pulley installation utensil is mobile according to the expanding-contracting action of telescoping cylinder, sliding
Wheel is installed utensil and slide unit can be utilized successfully to move along guide rail.It is as a result, it is possible to successfully carry out
The flexible rope that is wound in flexible movable sheave and be wound on the press-in in press-in movable sheave
With the winding of rope, unreel action, it is possible to increase inner core is relative to the stability of the expanding-contracting action of urceolus.
According to the invention of scheme 4, even if when pulley being installed utensil and being arranged on guide rail, also can
Enough install relative to pulley installation utensil along the length direction of guide rail, dismantle slide unit.Thus, even if
Slide unit has worn out, and installs utensil without from guide rail dismounting pulley, it becomes possible to easily only change slip
Parts.It is as a result, it is possible to maintain pulley to install the state that utensil successfully moves along guide rail, it is possible to increase
Inner core is relative to the stability of the expanding-contracting action of urceolus.
According to the invention of scheme 5, by by stretching on the flexible pulley support axle being supported in each tie-beam
It is arranged in outside urceolus by movable sheave and the press-in movable sheave being supported on press-in pulley support axle
Side, it is possible to suppress the flexible movable sheave prominent bigger situation of lateral surface from the urceolus being provided with telescoping cylinder.
It, as a result, it is possible to use the flexible movable sheave being relatively large in diameter to reduce the curvature of flexible rope, therefore can
Enough life-spans extending flexible rope.
According to the invention of scheme 6, owing to each tie-beam of pulley installation utensil can be by by rail guidance
All the time move on constant track, therefore, it is possible to carry out flexible rope and press-in rope effectively
Wind and unreel action.Further, telescoping cylinder is supported for move along guide rail such that it is able to only along
Axially (telescopic direction) is subjected to displacement, even if therefore in the case of the telescoping cylinder employing long size, also
Buckling of telescoping cylinder can be suppressed, it can be ensured that excavating depth is bigger.
On the other hand, when pulley installation utensil is mobile according to the expanding-contracting action of telescoping cylinder, pulley erector
Tool can utilize slide unit successfully to move along guide rail.And, it is arranged on leads pulley being installed utensil
Under state on rail, it is also possible to the length direction along guide rail is installed, dismounting slide unit, it is therefore not necessary to
From guide rail dismounting pulley, utensil is installed, it becomes possible to easily only change slide unit.It is as a result, it is possible to remain sliding
Wheel installs the state that utensil successfully moves along guide rail.
Accompanying drawing explanation
Fig. 1 is the deep excavator of the state representation embodiments of the present invention reduced with telescopic arm maximum
Side view.
Fig. 2 is the side view of the state representation deep excavator with telescopic arm maximum elongation.
Fig. 3 is the side view representing telescopic arm in Fig. 1 with monomer.
Fig. 4 is the front view that telescopic arm is observed in arrow IV-IV direction from Fig. 3.
Fig. 5 is the axonometric chart representing telescopic arm with monomer.
Fig. 6 is the front view of the flexible fixed block etc. in enlarged representation Fig. 4.
Fig. 7 represents that pulley installs utensil, flexible movable sheave, press-in movable sheave, guide rail etc.
The amplification stereogram of major part.
Fig. 8 is to represent that pulley is arranged on pulley installs the axonometric chart of the state on utensil.
Fig. 9 is to represent that the axonometric chart of utensil installed by pulley with monomer.
Figure 10 is to represent the axonometric chart that utensil installed by pulley from the side contrary with Fig. 9.
Figure 11 is the side view that utensil installed by the pulley in enlarged representation Fig. 3.
Figure 12 is that telescopic arm is observed in arrow Ⅻ-Ⅻ direction from Figure 11, utensil installed by pulley, flexible use
The sectional view of movable sheave etc..
Figure 13 is that telescopic arm is observed in arrow Ⅹ III-Ⅹ III direction from Figure 11, pulley installs utensil, pressure
Enter with the sectional view of movable sheave etc..
Figure 14 is the sectional view that pulley installation utensil is observed in arrow Ⅺ V-Ⅺ V direction from Fig. 8.
Figure 15 is the major part enlarged drawing of the slide unit maintaining part in enlarged representation Figure 14.
Figure 16 is that slide unit maintaining part, slide unit are observed in arrow Ⅹ VI-Ⅹ VI direction from Figure 15
Sectional view.
Figure 17 be represent the state that is arranged on by slide unit in slide unit maintaining part with Figure 15 identical bits
The sectional view put.
Figure 18 is the ideograph of the telescoping mechanism of the state representation telescopic arm reduced with telescopic arm.
Figure 19 is the ideograph of the telescoping mechanism of the state representation telescopic arm with telescopic arm elongation.
In figure:
2-lower traveling body (vehicle body), 3-upper rotating body (vehicle body), 4-swing arm, 11-is multistage to be stretched
Contracting arm assembly, 12-telescopic arm, 13-urceolus, 13G-upper end, 13H-bottom, 21-inner core
(outermost inner core), 23-inner core, 25-telescoping cylinder, 27-guide rail, 29-pulley installation utensil, 30
-tie-beam, the upper armite of 31-, armite under 32-, 33-slide unit maintaining part, 37-first is sliding
Dynamic plate (slide unit), 38-the second sliding panel (slide unit), 39,39 '-flexible fixed block,
40,40 '-flexible movable sheave, 41,41 '-flexible rope, 46,46 '-press-in is with fixing
Pulley, 48,48 '-press-in movable sheave, 49,49 '-press-in rope.
Detailed description of the invention
Hereinafter, referring to the drawings the embodiment of the deep excavator of the present invention is described in detail.
In FIG, reference 1 represents the deep excavator of present embodiment, this deep excavator 1
Having vehicle body, this vehicle body is by can caterpillar lower traveling body 2 voluntarily and being rotatably mounted under this
Upper rotating body 3 on portion's driving body 2 is constituted.
Upper rotating body 3 generally comprises: as the rotating frame 3A of pedestal；It is arranged in this rotating frame 3A
The driver's cabin 3B of front left；It is located at counterweight 3C of the rear end side of rotating frame 3A；And in inside
Contain the Machine Room cover 3D of the carrying equipment such as electromotor, hydraulic pump (the most not shown).
Reference 4 represents the swing arm of the toe lateral that can be located to elevating movement upper rotating body 3.Swing arm 4
Base end side be arranged on the toe lateral of rotating frame 3A, be provided with described later multistage in the front of swing arm 4
Telescopic boom device 11.Swing arm cylinder 4A it is provided with, by making this swing arm between swing arm 4 and rotating frame 3A
Cylinder 4A stretches, and swing arm 4 carries out elevating movement relative to upper rotating body 3.The upper face side peace of swing arm 4
Equipped with the bottom side of telescopic arm oscillating cylinder 4B, the piston rod side of this telescopic arm oscillating cylinder 4B is arranged on multistage
On telescopic boom device 11.
Then, illustrating multi-stage expansion arm assembly 11, this multi-stage expansion arm assembly 11 is arranged on swing arm
The front of 4, and vertical hole is excavated deeper in underground.
Reference 11 represents the multi-stage expansion arm assembly of the front being arranged on swing arm 4, this multi-stage expansion
Arm assembly 11 has telescopic arm 12 described later, telescoping cylinder 25, pulley installation utensil 29, flexible rope
41, support with rope 44, press-in rope 49, clamshell bucket 50 etc..
Reference 12 represents front flexible being arranged on swing arm 4 in the way of vertically extending
The telescopic arm of formula.This telescopic arm 12 includes: be positioned at outermost urceolus 13；With the most scalable
The mode of (may move) is contained in the first order inner core 21 described later of the inner circumferential side of urceolus 13；And with edge
The telescopic mode of length direction is contained in the second level inner core 23 of the inner circumferential side of first order inner core 21.
Here, as shown in FIG. 12 and 13, urceolus 13 is formed as by 13A below, above 13B, a left side
What side 13C, right flank 13D, left-leaning inclined-plane 13E and Right deviation inclined-plane 13F surrounded has hexagonal section
The angle cylinder of face shape, wherein, after 13A be arranged on the front of swing arm 4, before 13B with below
13A interval in the longitudinal direction and facing, left surface 13C and right flank 13D are across 13A below
Above 13B is upper facing in the direction (left and right directions) orthogonal with the length direction of urceolus 13, left-leaning
Inclined-plane 13E is arranged in below between 13A and left surface 13C obliquely, and Right deviation inclined-plane 13F joins obliquely
Put between 13A below and right flank 13D.
So, by arranging between 13A and left surface 13C after the front being installed on swing arm 4
Left-leaning inclined-plane 13E, and Right deviation inclined-plane 13F is set between 13A and right flank 13D below, it is possible to carry
The buckling strength of the principle of readjustment, restructuring, consolidation and improvement load to acting on urceolus 13.On the other hand, the upper end 13G of urceolus 13
Opening (with reference to Figure 18) is respectively become with bottom 13H.
Reference 14 represents the pars intermedia of the length direction being positioned at urceolus 13 and is integrally provided at urceolus 13
The upper flange plate of outer circumferential side.The end side of locking press-in rope 49 described later in this upper flange plate 14
49A.Reference 15 represents the lower flange plate of the bottom being integrally provided at urceolus 13.At this lower flange
End side 44A of locking support rope 44 described later on plate 15.
Reference 16 represents the pulley construction opening of the lower side being located at urceolus 13.This pulley construction opening
16 are formed at position and the right flank that the left surface 13C constituting urceolus 13 intersects with left-leaning inclined-plane 13E
The position that 13D intersects with Right deviation inclined-plane 13F, and opening is set to the inside of urceolus 13.At this pulley
Construction opening 16 inserts a part for press-in fixed block 46 described later.
Reference 17 represents and is located at the outside of urceolus 13 and pulley described later installs utensil 29 more on the lower
The pair of right and left swing arm bracket at position, these a pair swing arm bracket 17 is located at the front of swing arm 4.?
This, between a pair swing arm 17 is by separating on the direction (left and right directions) orthogonal with the length direction of urceolus 13
Constitute every opposed facing plate body, each bracket 17 is fixed with a left side of the swing arm connecting portion 17A of cylindrical shape
The both sides of right direction.A pair swing arm bracket 17 uses the methods such as welding to be integrally fixed to after urceolus 13
On 13A, before the swing arm connecting portion 17A of swing arm bracket 17 uses pin 18 (with reference to Fig. 1) and swing arm 4
Side carries out keying conjunction.It addition, be configured with telescoping cylinder 25 described later between a pair swing arm bracket 17.
Reference 19 expression is positioned at the position of side more top than swing arm bracket 17 and is located at outside urceolus 13
The pair of right and left bracket cylinder of side, this pair bracket cylinder 19 is arranged on the piston rod side of telescopic arm oscillating cylinder 4B.
Here, a pair bracket cylinder 19 is made up of the opposed facing plate body of interval in the lateral direction, telescopic arm
The piston rod leading section of oscillating cylinder 4B has the cylinder linking part utilizing pin 20 to link, and uses the methods such as welding
It is integrally fixed to after urceolus 13 on 13A and near the upside of bracket cylinder 17 position.Telescopic arm is put
The piston rod leading section of dynamic cylinder 4B uses pin 20 (with reference to Fig. 1) keying to be rotationally combined in these a pair cylinder
On bracket 19.
Thus, by making telescopic arm oscillating cylinder 4B stretch, the urceolus 13 of telescopic arm 12 is in the front end of arm 4
Side centered by pin 18 in front-rear direction or above-below direction swing.It addition, bracket cylinder 19 is put according to telescopic arm
The installation site of dynamic cylinder 4B, is sometimes positioned at and is configured than swing arm bracket 17 position more on the lower.
Reference 21 represent be movably received within using suitable gap urceolus 13 inner side as outermost
The first order inner core of side inner core.As shown in FIG. 12 and 13, inner core 21 is formed as by 21A below, front
The angle cylinder of the cross sectional shape with tetragon that face 21B, left surface 21C and right flank 21D surround,
The both ends of above-below direction become opening.And, inner core 21 accommodates from the bottom 13H of urceolus 13
To the inner side of urceolus 13, and can (above-below direction) move along its length relative to urceolus 13.
Here, between the medial surface and the lateral surface of inner core 21 of urceolus 13, be provided with for making inner core 21
The sliding panel (not shown) successfully slided along urceolus 13.On the other hand, in the bottom of inner core 21
It is provided with lower flange plate 22, this lower flange plate 22 is provided with support fixed block 42 described later.
Reference 23 represents the position of the inner side being movably received within first order inner core 21 with suitable gap
Second level inner core in inner side.This inner core 23 is formed as by 23A below, above 23B, left surface 23C
And right flank 23D surrounds and has the angle cylinder of cross sectional shape of tetragon of a circle less than inner core 21.
Inner core 23 is received into the inner side of inner core 21 from the lower end side of inner core 21, and can edge relative to inner core 21
Length direction (above-below direction) is mobile.
Here, between the medial surface and the lateral surface of inner core 23 of inner core 21, be provided with for making inner core 23
The sliding panel (not shown) successfully slided along inner core 21.On the other hand, in the bottom of inner core 23
It is provided with mounting ring 24, this mounting ring is installed clamshell bucket 50 described later.
Reference 25 represents the telescoping cylinder of the length direction configuration along the urceolus 13 constituting telescopic arm 12.
This telescoping cylinder 25 is made up of hydraulic cylinder, and this hydraulic cylinder includes sleeve 25A, is slidably disposed in this sleeve 25A
In piston (not shown) and side is fixed on piston in sleeve 25A and opposite side is from sleeve 25A
The piston rod 25B prominent to outside.
Here, telescoping cylinder 25 is being provided with 13A side after the urceolus 13 of swing arm bracket 17, and urceolus 13
The center of left and right directions, configure with piston rod 25B state upward.As shown in Figure 6,
The leading section 25C of the piston rod 25B of telescoping cylinder 25 closes with bracket 13J keying via pin 25D, bracket
13J is located at the neighbouring position of the upper end 13G of urceolus 13.
On the other hand, the sleeve 25A of telescoping cylinder 25 becomes free end and extends downwards, and is configured on a left side
Between swing arm bracket 17 paired in right direction.And, the upper side at sleeve 25A is provided with described later
Utensil 29 installed by pulley.Thus, by making telescoping cylinder 25 at the maximum elongation state shown in Fig. 1 and Fig. 2
Stretch between shown maximum deflated state, make sleeve 25A and pulley utensil 29 is installed together with along
Urceolus 13 moves up and down.
Reference 26 represents the cage guiding part being located at the outside of 13A after urceolus 13, this sleeve
Guide 26 is for being removably received by the sleeve 25A of telescoping cylinder 25.Cage guiding part 26 is big by having
The angle cylinder causing foursquare cross sectional shape is formed, and at the shape being configured between a pair swing arm bracket 17
Under state, length direction along urceolus 13 is fixed on after urceolus 13 on 13A.It addition, lead at sleeve
Medial surface to part 26 is provided with sliding panel 26A, and the sleeve 25A of the telescoping cylinder 25 becoming free end passes through
Sliding contact is produced, it is possible to along cage guiding part 26 successfully along the length of urceolus 13 with sliding panel 26A
Degree direction is moved.
Reference 27 represents two guide rails in the outside being located at urceolus 13, and this each guide rail 27 is for along outward
The length direction of cylinder 13 guides pulley described later to install each tie-beam 30 of utensil 29.These two guide rails
27 each one of the left and right configurations across telescoping cylinder 25 on 13A after urceolus 13, and at telescoping cylinder
Between 25 and each tie-beam 30, the length direction along urceolus 13 extends.
Here, guide rail 27 is made up of the steel of cross section L-shaped, and outside using the methods such as welding to be fixed on
After cylinder 13 on 13A, and it is made up of fixed plate portion 27A and matching board portion 27B, fixed plate portion
27A extends along vertical relative to 13A below, and matching board portion 27B is before this fixed plate portion 27A
Side outer lateral bend in the lateral direction and horizontally extending relative to 13A below, coordinates described later
First, second sliding panel 37,38.
Reference 28 represents the pulley installation base plate being fixedly installed on the upper end 13G of urceolus 13,
This pulley installation base plate 28 is used for installing flexible fixed block 39 described later etc..Here, base installed by pulley
Plate 28 have 13A stretches out to rear side (swing arm 4 side) after urceolus 13 pulley installation portion 28A,
With rope engaging portion 28B being positioned at the position being located further forward side than this pulley installation portion 28A.Install at pulley
On the pulley installation portion 28A of substrate 28, it is pivotably supported flexible fixed block 39, at rope card
Determine end side 41A of locking flexible rope 41 described later on portion 28B.
Then, the pulley for present embodiment is installed utensil to illustrate.
Reference 29 represents that utensil installed by the pulley being arranged on the sleeve 25A of telescoping cylinder, such as Fig. 7 extremely
Shown in Figure 14, this pulley is installed utensil 29 and is integrally formed the frame-shaped (gate) into tetragon, is used for
Flexible movable sheave 40 described later and press-in movable sheave 48 are installed.Here, utensil 29 installed by pulley
Including: it is organized in pairs in the left and right sides across telescoping cylinder 25 and along the length direction (upper and lower of urceolus 13
To) tie-beam 30 of left and right that extends；On the position separated on the length direction of these each tie-beams 30
The upper armite 31 between tie-beam 30 about telescoping cylinder 25 extends in left-right direction and links
And lower armite 32；And the separately positioned tie-beam 30 in left and right of length direction along tie-beam 30
On flexible pulley support axle 30B and press-in pulley support axle 30C.
In the upper end of each tie-beam 30, it is respectively equipped with the support pin 30A prominent to telescoping cylinder 25, passes through
These upper end side respectively supporting pin 30A and the sleeve 25A of telescoping cylinder 25 carry out keying conjunction, at telescoping cylinder
Pulley is installed on the sleeve 25A of 25 utensil 29 is installed.It addition, the ratio at each tie-beam 30 supports pin 30A
Position more on the lower, is provided with discretely to stretch along top and props up with pulley support axle 30B and press-in pulley
Support axle 30C, flexible being pivotably supported with pulley support axle 30B is stretched by movable sheave 40, is pressed into and uses
Pulley support axle 30C is pivotably supported press-in movable sheave 48.
In the case, as shown in figure 11, support pin 30A to be arranged in than flexible pulley support axle 30B
The position of more top side, press-in pulley support axle 30C is arranged in than flexible pulley support axle 30B more
Position on the lower.And, support the center of pin 30A, the center of flexible pulley support axle 30B,
And the press-in center of pulley support axle 30C, it is arranged approximately on the axle center A-A of telescoping cylinder 25.
Thus, winding or unreeling flexible rope from flexible by movable sheave 40 according to the flexible of telescoping cylinder 25
41, and when press-in movable sheave 48 winds or unreel press-in rope 49, partial load effect will not be made
In pulley, utensil 29 is installed.It addition, on the opposed facing medial surface of left and right tie-beam 30, be provided with position
Slide unit maintaining part 33 described later in the both end sides of above-below direction.
On the other hand, the both end sides of the left and right directions of upper armite 31 is horizontally extending, and respectively
It is connected with the upper end side of tie-beam 30.Further, the pars intermedia of the left and right directions of upper armite 31 become to from
After urceolus 13 13A separate direction bending bending section 31A, utilize this bending section 31A come across
Telescoping cylinder 25.It addition, the both end sides of the left and right directions of lower armite 32 is the most horizontally extending and with even
The lower end side connecing beam 30 connects, and the pars intermedia of left and right directions becomes and separates to 13A after urceolus 13
Direction bending bending section 32A.And, utilize this bending section 32A to come across telescoping cylinder 25 and sleeve
Guide 26.
Reference 33 represents the sliding part at totally four positions on the medial surface of the tie-beam 30 being located at left and right
Part maintaining part, these slide unit maintaining parts 33 are arranged respectively at the two ends of the above-below direction of each tie-beam 30
Side, is used for keeping the first sliding panel 37 and the second sliding panel 38 described later.Here, slide unit maintaining part
33 include: keep the first holder 34 of the first sliding panel 37；Matching board portion 27B across guide rail 27
Relative with the first holder 34, and keep the second holder 35 of the second sliding panel 38；And lid
Body 36.
Reference 34 represents the first holder keeping the first sliding panel 37, this first holder
34 include: base end side is fixed on the medial surface of tie-beam 30 and front is prominent to urceolus 13 side
Support group plate 34A；And it is fixed on the end of the above-below direction of this support substrate 34A and the interior of tie-beam 30
Retainer 34B on side.
Reference 35 represents the second holder keeping the second sliding panel 38, this second holder
35 to surround the frame-shaped of the periphery of the second sliding panel 38, be located among tie-beam 30 with the first holder
On 34 relative faces.
Reference 36 represents the lid on the end of the above-below direction being releasably arranged on tie-beam 30.
This lid 36 uses bolt 36A to be arranged on tie-beam 30, thus with the first holder 34 only
Clamp the first sliding panel 37 between dynamic device 34B, and it is sliding to clamp second between the second holder 35
Dynamic plate 38.
Reference 37 is denoted as the first sliding panel of slide unit, and this first sliding panel 37 such as uses
Resin material is formed as vertically extending rectangular-shaped, is being held in the first holder 34
Under state all the time with the matching board portion 27B sliding contact of guide rail 27.Here, on the first sliding panel 37,
Use bolt that the flat abutting plate that the support substrate 34A with the first holder 34 abuts is installed
37A and the flat abutting plate 37B abutted with the medial surface of tie-beam 30, at the first sliding panel 37
Pad 37C it is configured with between plate 37A, 37B with each abutting.
Thus, according to the number of the pad 37C being arranged in the first sliding panel 37 and abut between plate 37A,
The first sliding panel 37 can be made suitably to abut with the fixed plate portion 27A of guide rail 27, according to being arranged in
The number of one sliding panel 37 and the pad 37C abutted between plate 37B, it is possible to make the first sliding panel 37 fit
Locality abuts with the matching board portion 27B of guide rail 27.
Reference 38 represents the second sliding panel constituting slide unit together with the first sliding panel 37, and this is years old
Two sliding panels 38 such as use resin material to be formed as vertically extending tabular, are being held in
Under state in two holder 35 all the time with the matching board portion 27B sliding contact of guide rail 27.
In the case, slide unit maintaining part 33 accommodates between the first holder 34 and guide rail 27
First sliding panel 37, and between the second holder 35 and guide rail 27, accommodate the shape of the second sliding panel 38
Under state, use bolt 36A that lid 36 is arranged on pulley and install on the tie-beam 30 of utensil 29, thus
First, second sliding panel 37,38 can be kept.Thus, pulley installs utensil 29 via first, second
Sliding panel 37,38 and guide rail 27 sliding contact, it is possible to successfully move along guide rail 27.
On the other hand, dismantle lid 36 by installing the tie-beam 30 of utensil 29 from pulley, first, the
Two sliding panels 37,38 can move along the length direction of guide rail 27.Thus, pulley is being installed utensil
29 are arranged under the state on guide rail 27, it is possible to only by first, second sliding panel 37,38 relative to
One, the second holder 34,35 easily mounts and dismounts.
Then, illustrate for telescopically linking the composition urceolus 13 of telescopic arm 12, first order inner core 21
With the flexible fixed block 39 of second level inner core 23, flexible with movable sheave 40, flexible rope 41,
Support with fixed block 42 and support with rope 44.
Fixed block 39, flexible movable sheave 40, flexible rope 41, support is used to use here, flexible
Fixed block 42, support rope 44 relative to urceolus 13 to become symmetrical across telescoping cylinder 25
Mode arranges two groups, and has identical structure each other.Therefore, below to the left side being arranged in urceolus 13
The flexible fixed block 39 of side, flexible with movable sheave 40, flexible rope 41, support with fixing sliding
Wheel 42 and support rope 44 illustrate, and for being arranged in each parts on right side, want in corresponding structure
Add in the reference of element " ' ", and the description thereof will be omitted.
Reference 39 represents the flexible use of the upper end side being fixed on urceolus 13 via pulley installation base plate 28
Fixed block, this stretches with fixed block 39 by two fixed blocks 39A, the 39B with equal diameter
Constitute.One fixed block 39A is pivotally supported at the cunning of pulley installation base plate 28 via bracket 28C
On wheel installation portion 28A, another fixed block 39B rotatably carries out via another bracket 28D propping up
Support.In the case, the support shaft (not shown) of each fixed block 39A, 39B is configured to respectively with outward
After cylinder 13,13A is not parallel.
Reference 40 represents that being pivotally supported at pulley installs the flexible movable sheave on utensil 29,
This stretches and is made up of two movable sheave 40A, the 40B with equal diameter by movable sheave 40.?
This, movable sheave 40A and another movable sheave 40B can via flexible pulley support axle 30B
It is rotationally supported at pulley to install on the tie-beam 30 of utensil 29.In the case, flexible pulley support
Axle 30B is configured to parallel with 13A after urceolus 13.And, by pulley, utensil 29 basis is installed
Telescoping cylinder 25 flexible and move along the vertical direction, thus flexible by movable sheave 40 relative to flexible with solid
Fixed pulley 39 is close or separates.
In the case, it is supported in stretching on pulley installation utensil 29 and is arranged in ratio outward by movable sheave 40
The position more outward for left surface 13C of cylinder 13, and and this left surface 13C separate small interval and
Face each other in the lateral direction.Thereby, it is possible to guarantee flexible being relatively large in diameter by movable sheave 40, and
And the flexible prominent bigger situation in movable sheave 40 13A side after urceolus 13, energy can be suppressed
The miniaturization of enough surroundings realizing flexible movable sheave 40.
It addition, as shown in FIG. 11 and 12, by the flexible of left side is arranged in ratio by movable sheave 40
The position more outward for left surface 13C of urceolus 13, flexible by right side is arranged in by movable sheave 40 '
The position more more outward than the right flank 13D of urceolus 13 such that it is able to as far as possible reduce the axle of telescoping cylinder 25
Distance L between 13A after centrage A-A and urceolus 13.Thereby, it is possible to reduce telescoping cylinder 25
The bending moment of urceolus 13 is acted on time flexible.
Reference 41 represents for connecting urceolus 13 and the flexible use between the inner core 23 of inner side
Rope, this stretches and is made up of steel wire rope with rope 41.Here, as shown in Figure 18 and Figure 19, flexible use
End side 41A of rope 41 is engaging in the pulley installation base plate on the upper end 13G being arranged at urceolus 13
In rope engaging portion 28B of 28, flexible it is inserted into urceolus 13 and interior with another side 41B of rope 41
The inner side of cylinder 21, and it is engaging in the upper side of inner core 23.It addition, it is flexible with the position, midway of rope 41
Constituting two fixed blocks 39A, 39B and the flexible movable sheave of composition of flexible fixed block 39
Two movable sheave 40A of 40, the spaced winding of 40B hang four circles.
That is, stretching that end side 41A is engaging on pulley installation base plate 28 is wound on successively with rope 41
Flexible with movable sheave 40A of movable sheave 40, a fixed block of flexible fixed block 39
39A, flexible with another movable sheave 40B of movable sheave 40, flexible fixed block 39 another
On individual fixed block 39B.And, stretch with another side 41B of rope 41 from flexible fixed block
Another fixed block 39B of 39 is inserted into urceolus 13 and the inner side of inner core 21, and is engaging in inner core 23
Upper side.
Reference 42 represents that the support being located in the lower flange plate 22 of first order inner core 21 is with fixing
Pulley.This support fixed block 42 is pivotally supported on bracket 43, and bracket 43 is fixed on inner core
In the lower flange plate 22 of 21.
Reference 44 represents the support rope supporting inner core 21 between urceolus 13 and inner core 23, should
Support rope 44 is made up of steel wire rope.Here, as shown in Figure 18 and Figure 19, support with rope 44
End side 44A be engaging in the lower flange plate 15 of urceolus 13, support with the position, midway of rope 44 volume
It is wound on support fixed block 42.And, support another side 44B of rope 44 uses from support
Fixed block 42 is inserted into the inner side of inner core 21, and is engaging in the upper of inner core 23 in the inner side of this inner core 21
Side, portion.
Reference 45 expression is located at the pressing mechanism between urceolus 13 and first order inner core 21, this press-in
Mechanism 45, for when utilizing telescoping cylinder 25 to make inner core 21 extend from urceolus 13, keeps this inner core 21
Elongation state.
Here, pressing mechanism 45 includes press-in fixed block 46, press-in movable sheave 48 and press-in
With rope 49, arrange two groups relative to urceolus 13 becoming symmetrical mode across telescoping cylinder 25,
And there is identical structure each other.Therefore, pressing mechanism 45 to the left side being arranged in urceolus 13 below
Illustrate, for being arranged in the pressing mechanism on right side, the reference of corresponding structural element adds
" ' ", and the description thereof will be omitted.
Reference 46 represents a press-in fixed block of the lower side being located at urceolus 13.Press-in is with solid
Fixed pulley 46 is pivotally supported at across the pulley construction opening 16 being formed on urceolus 13 outside being fixed on
On bracket 47 on cylinder 13.In the case, a part for press-in fixed block 46 is contained in urceolus
The inner side of 13.
Reference 48 represents and is being located at pulley erector than flexible movable sheave 40 position more on the lower
A press-in movable sheave on tool 29.Press-in by movable sheave 48 via press-in pulley support axle
30C is pivotally supported at pulley and installs on the tie-beam 30 of utensil 29.In the case, press-in is sliding
Wheel support shaft 30C is configured to parallel with 13A after urceolus 13.And, by pulley, utensil is installed
29 move along the vertical direction according to the flexible of telescoping cylinder 25, thus press-in with movable sheave 48 relative to
Press-in is close with fixed block 46 or separates.
Reference 49 represents for linking the press-in rope between urceolus 13 and inner core 21, this press-in
It is made up of steel wire rope with rope 49.Here, as shown in Figure 18 and Figure 19, press-in one end of rope 49
Side 49A is engaging in the upper flange plate 14 of urceolus 13, and the position, midway of press-in rope 49 is wound on pressure
Enter with in movable sheave 48 and press-in fixed block 49.And, press-in another side of rope 49
49B is inserted into the inner side of urceolus 13 from press-in fixed block 46, and locking in the inner side of this urceolus 13
Upper side at inner core 21.
Thus, make telescoping cylinder 25 in the case of the maximum elongation state shown in Fig. 1 and Figure 18 reduces,
The sleeve 25A of telescoping cylinder 25 installs with pulley and is moved upward together with utensil 29, flexible movable sheave
40 use fixed block 39 close to flexible.Thus, flexible movable sheave 40 it is wound on and flexible with fixing sliding
Stretching on wheel 39 is output with rope 41, and inner core 23 is extended downwards from urceolus 13 by deadweight.This
Time, it is engaging in another side 44B of support rope 44 of the upper side of inner core 23 together with inner core 23
Move downwards, the inner core that therefore supported by support rope 44 21 also by deadweight from urceolus 13 to
Lower section elongation.So, as shown in Fig. 2 and Figure 19, sleeve 25A moves to upper limit position and makes to stretch
Cylinder 25 reaches maximum deflated state, thus telescopic arm 12 becomes maximum elongation state.
If here, pulley installs utensil 29 close to stretching with fixed block 39, then press-in rope 49 quilt
It is wound between press-in movable sheave 48 and press-in fixed block 46, press-in another of rope 49
Side 49B moves downwards along with inner core 21.Thus, press-in rope 49 remains constant opening
Power.It addition, inner core 21 extends when being supported by support rope 44, therefore support rope
Rope 44 also remains constant tension force.
Thus, when inner core 21,23 extends from urceolus 13, use clamshell bucket 50 described later to enter
Row digging operation, even if thus in excavation reaction force acts upwards in the case of inner core 21,23,
Also be able to utilize press-in rope 49, the tension force of support rope 44 suppresses inner core 21,23 to reduced side
Mobile.
Then, make telescoping cylinder 25 from shown in Fig. 2 and Figure 19 maximum deflated state extend in the case of,
It is mobile that utensil 29 side downwardly together installed by the sleeve 25A of telescoping cylinder 25 and pulley, flexible movable sheave
40 separate from flexible fixed block 39.Thus, flexible being wound onto with rope 41 is stretched with movable sliding
Taking turns between 40 and flexible fixed block 39, inner core 23 is moved upward and is contained in inner core 21.This
Time, it is engaging in another side of support rope 44 of the upper side of inner core 23 together with inner core 23 upwards
Fang Yidong, the inner core 21 therefore supported by support rope 44 is also moved upward and is contained in urceolus 13
In.So, as shown in Fig. 1 and Figure 18, sleeve 25A moves to lower position and makes telescoping cylinder 25
Reach maximum elongation state, thus telescopic arm 12 becomes maximum deflated state.
On the other hand, when telescopic arm 12 is flexible between maximum deflated state and maximum elongation state, every
Telescoping cylinder 25 to be arranged in the flexible fixed block 39 ' on right side, flexible movable sheave 40 ', stretch
With rope 41 ', support fixed block 42 ', support rope 44 ', press-in fixed block 46 ',
And the composition press-in movable sheave 48 ' of pressing mechanism 45 ', press-in rope 49 ' are also carried out with upper
State same action.
Reference 50 expression is rockably mounted to be arranged on the front (lower end side) of inner core 23
Clamshell bucket in mounting ring 24.This clamshell bucket 50 carries out opening and closing by making clamshell bucket cylinder 51 flexible, and
And be used for excavating sandy soil.
The deep excavator 1 of present embodiment has structure as above, and therefore, following description is to wanting deep
The ground 100 dug, uses deep excavator 1 to excavate the operation in vertical hole 101.
First, as it is shown in figure 1, deep excavator 1 makes telescoping cylinder 25 carry out maximum elongation and by telescopic arm
12 are in maximum deflated state, relative to excavate the ground 100 indulging hole 101, keep with vertical attitude
Telescopic arm 12.
In this condition, by making telescoping cylinder 25 reduce, the sleeve 25A of telescoping cylinder 25 is made to pacify with pulley
Dress utensil 29 is moved upward together, makes flexible movable sheave 40 close to flexible fixed block 39.
Thus, flexible movable sheave 40 and flexible flexible rope 41 quilt on fixed block 39 it are wound on
Output, inner core 23 is extended downwards from urceolus 13 by deadweight, and supported by support rope 44
Inner core 21 extends downwards from urceolus 13 also by deadweight.
Now, being wound onto the press-in use being supported on pulley installation utensil 29 by press-in rope 49 can
Movable pulley 48 and press-in are used between fixed block 46, and press-in rope 49 remains constant tension force.
Further, the support rope 44 supporting inner core 21 between urceolus 13 and inner core 23 also remains constant
Tension force.
It is as a result, it is possible to utilize press-in rope 49, the tension force of support rope 44, holding inner core 21,
23 from the state of urceolus 13 elongation, it is possible to clamshell bucket 50 is pressed into the bottom surface in vertical hole 101.At this shape
Under state, by utilizing clamshell bucket cylinder 51 to make clamshell bucket 50 carry out opening and closing such that it is able to use clamshell bucket 50
Deep-cut vertical hole 101, it is possible to utilize clamshell bucket 50 pick to take substantial amounts of sandy soil.
After utilizing clamshell bucket 50 pick to take sandy soil, by making telescoping cylinder 25 extend, make telescoping cylinder 25
It is mobile that utensil 29 side downwardly together installed by sleeve 25A and pulley, makes flexible movable sheave 40 from flexible
Separate with fixed block 39.
Thus, flexible being wound onto with rope 41 is stretched with movable sheave 40 and flexible fixed block 39
Between, inner core 23 is moved upward and is contained in inner core 21.Now, urceolus 13 and inner core 23 are linked
Between another side 44B of support rope 44 be moved upward together with inner core 23, thus by
The inner core 21 that support rope 44 supports also is moved upward and is contained in urceolus 13.
As it is shown in figure 1, arrive maximum elongation state at telescoping cylinder 25, and telescopic arm 12 becomes maximum and reduces
After state, promote the front of swing arm 4 and clamshell bucket 50 is extracted from vertical hole 101.Then, make
Portion's rotary body 3 rotates, clamshell bucket 50 sandy soil held are discharged at the rear of deep excavator 1 or
In the railway carriage of the tipping lorry (not shown) that side waits.
Here, in the deep excavator 1 of present embodiment, the company about utensil 29 utilization installed by pulley
Connect beam 30 and upper armite 31 and lower armite 32 and be integrally formed into the frame-shaped of tetragon, the company of left and right
Connect beam 30 to be organized in pairs in the left and right sides across telescoping cylinder 25, upper armite 31 and lower armite 32
Between tie-beam 30 about extending in left-right direction across telescoping cylinder 25 and linking.
Thereby, it is possible to be arranged in ratio outward by being supported in stretching on pulley installation utensil 29 by movable sheave 40
On the position more outward for left surface 13C of cylinder 13.Thus, it is possible to guarantee flexible movable sheave 40
Be relatively large in diameter, and flexible movable sheave 40 13A (lateral surface) after urceolus 13 can be suppressed
Prominent bigger situation.It is as a result, it is possible to use the flexible movable sheave 40 being relatively large in diameter, it is possible to prolong
Long flexible with the life-span of rope 41.
And, as shown in FIG. 11 and 12, by the flexible of left side is arranged in ratio by movable sheave 40
The position more outward for left surface 13C of urceolus 13, and the flexible of right side is joined by movable sheave 40 '
Put in position more outward for the right flank 13D than urceolus 13, it is possible to reduce the axle of telescoping cylinder 25 as far as possible
Distance L between 13A after centrage A-A and urceolus 13.Thus, carry out at telescoping cylinder 25
During expanding-contracting action, it is possible to reduce the bending moment acting on urceolus 13, it can be ensured that the intensity of urceolus 13.
It addition, telescoping cylinder 25 to be arranged on support the pin center of 30A, the peace that pulley is installed on utensil 29
The flexible center with the flexible pulley support axle 30B of movable sheave 40 of dress and installation press-in are with movable
The press-in center of pulley support axle 30C of pulley 48, is arranged on substantially straight line A-A.Thus,
Winding or unreeling flexible rope 41 from flexible by movable sheave 40 according to the flexible of telescoping cylinder 25,
And when press-in movable sheave 48 winds or unreel press-in rope 49, it is possible to prevent partial load effect
Install on utensil 29 in pulley.
It addition, in the present embodiment, in the outside of urceolus 13, arrange and be positioned at pulley installation utensil 29
Each tie-beam 30 and telescoping cylinder 25 between and guide rail 27 in cross section L-shaped, utensil 29 installed by pulley
Move along guide rail 27 along the length direction of urceolus 13.Thus, pulley installation utensil 29 can be by guide rail
27 guide and move on constant track all the time.As a result, it is possible to it is according to the expanding-contracting action of telescoping cylinder 25,
It is wound effectively flexible with stretching with rope 41 and being wound on press-in use in movable sheave 40
The winding of the press-in rope 49 in movable sheave 48 and unreel action.
And, telescoping cylinder 25 is connected to each tie-beam 30 of pulley installation utensil 29 via supporting pin 30A
On, therefore telescoping cylinder 25 self is also supported for move along guide rail 27.Thus, telescoping cylinder 25
Can be subjected to displacement only along axially (telescopic direction) when carrying out expanding-contracting action, will not produce to axially with
The displacement (skew) in outer direction and rocking.Its result, even if employing the telescoping cylinder 25 of long size
In the case of, also can suppress buckling of this telescoping cylinder 25, it can be ensured that excavating depth is bigger.And, logical
Cross and utilize guide rail 27 to suppress buckling of telescoping cylinder 25, it is not necessary to use buckling strength height and big the stretching of weight
Cylinder, it is possible to reduce the weight of multi-stage expansion arm assembly 11 entirety.
It addition, in the present embodiment, install at pulley and between utensil 29 and guide rail 27, arrange first, the
Two sliding panels 37,38.Thus, pulley installs utensil 29 all the time via first, second sliding panel 37,38
With guide rail 27 sliding contact, therefore, it is possible to according to the expanding-contracting action of telescoping cylinder 25, make pulley that utensil to be installed
29 successfully move along guide rail 27.
And, pulley installation utensil 29 is provided with the slip with first, second holder 34,35
Member retainer section 33, first, second holder 34,35 can install along the length direction of guide rail 27,
Holding first, second sliding panel 37,38 of dismounting.Thus, by the lid by slide unit maintaining part 33
Body 36 is installed utensil 29 from pulley and is dismantled, it is possible to be arranged on guide rail 27 pulley is installed utensil 29
Under state, only by first, second sliding panel 37,38 relative to first, second holder 34,35
Easily carry out installing, dismantling.
Thus, even if first, second sliding panel 37,38 has worn out, also need not be sliding from guide rail 27 dismounting
Wheel installs utensil 29, it becomes possible to easily only change first, second sliding panel 37,38.Itself as a result, it is possible to
Maintain pulley that the state that utensil 29 moves smoothly along guide rail 27 is installed, it is possible to increase inner core 21,23 phase
Stability for the expanding-contracting action of urceolus 13.
It addition, in the above-described embodiment, illustrate following structure, constituting outside telescopic arm 12
13A side among cylinder 13, after mounting bracket 17, configuration telescoping cylinder 25, guide rail 27, pulley are installed
Utensil 29, use of stretching fixed block 39, flexible movable sheave 40 etc..But, the present invention does not limit to
In this, for example, it is also possible to utensil installed by 13B side configuration telescoping cylinder 25, pulley before urceolus 13
29 etc..
Claims (6)
1. a multi-stage expansion arm assembly, it is characterised in that have:
Telescopic arm, has vertically extending urceolus and can be telescopically received in this along its length
The multistage inner core of the inner side of urceolus；
Telescoping cylinder, the length direction along the above-mentioned urceolus constituting this telescopic arm configures；
Flexible fixed block, is fixedly installed on above-mentioned urceolus；
Utensil installed by pulley, is arranged on this telescoping cylinder, and to connect relative to above-mentioned flexible fixed block
Near or the mode that separates moves along the length direction of above-mentioned urceolus；
Flexible movable sheave, is located at this pulley and installs on utensil；
Flexible rope, end side is engaging on above-mentioned urceolus and another side is engaging among above-mentioned inner core
On inner core for inner side, and position, midway is wound on above-mentioned flexible fixed block and flexible with movable sliding
On wheel；
Press-in fixed block, is fixedly installed on the lower side of above-mentioned urceolus；
Press-in movable sheave, flexible is being located at above-mentioned pulley with movable sheave position more on the lower than above-mentioned
Install on utensil；And
Press-in rope, end side be engaging on above-mentioned urceolus and another side through above-mentioned urceolus inner side and
It is engaging among above-mentioned multistage inner core and is positioned on outermost outermost inner core, and position, midway is wound on
State in press-in fixed block and above-mentioned press-in movable sheave,
Above-mentioned pulley is installed utensil and is included:
On the direction orthogonal with the length direction of above-mentioned urceolus, it is arranged in the both sides across above-mentioned telescoping cylinder,
And a pair tie-beam being connected with above-mentioned telescoping cylinder；
The length direction of this pair tie-beam separates and links the armite between above-mentioned each tie-beam；With
And
Length direction along above-mentioned each tie-beam is separately provided on above-mentioned each tie-beam, and supports
State the flexible pulley support axle of flexible movable sheave and support the press-in of above-mentioned press-in movable sheave
Use pulley support axle.
Multi-stage expansion arm assembly the most according to claim 1, it is characterised in that
Being provided with guide rail on above-mentioned urceolus, this guide rail is arranged in above-mentioned pulley and installs each tie-beam of utensil with upper
State between telescoping cylinder, and guide along the length direction of above-mentioned urceolus according to stretching of above-mentioned telescoping cylinder
State pulley and each tie-beam of utensil is installed.
Multi-stage expansion arm assembly the most according to claim 2, it is characterised in that
Installing at above-mentioned pulley and be provided with slide unit between utensil and above-mentioned guide rail, this slide unit makes above-mentioned cunning
Wheel is installed utensil and is successfully moved along above-mentioned guide rail.
Multi-stage expansion arm assembly the most according to claim 3, it is characterised in that
Installing at above-mentioned pulley and be provided with slide unit maintaining part on utensil, this slide unit maintaining part keeps above-mentioned
Slide unit, above-mentioned slide unit relative to above-mentioned slide unit maintaining part along the length direction of above-mentioned guide rail
Can install, dismantle.
5. a deep excavator with multi-stage expansion arm assembly, it is characterised in that
Including can vehicle body voluntarily, can be located to elevating movement the swing arm on this vehicle body and be located at this
The multi-stage expansion arm assembly of the front of swing arm,
Above-mentioned multi-stage expansion arm assembly has:
Telescopic arm, has vertically extending urceolus and can be telescopically received in this along its length
The multistage inner core of the inner side of urceolus；
Telescoping cylinder, the length direction along the above-mentioned urceolus constituting this telescopic arm configures；
Flexible fixed block, is fixedly installed on above-mentioned urceolus；
Utensil installed by pulley, is arranged on this telescoping cylinder, and to connect relative to above-mentioned flexible fixed block
Near or the mode that separates moves along the length direction of above-mentioned urceolus；
Flexible movable sheave, is located at this pulley and installs on utensil；
Flexible rope, end side is engaging on above-mentioned urceolus and another side is engaging among above-mentioned inner core
On inner core for inner side, and position, midway is wound on above-mentioned flexible fixed block and flexible with movable sliding
On wheel；
Press-in fixed block, is fixedly installed on the lower side of above-mentioned urceolus；
Press-in movable sheave, flexible is being located at above-mentioned pulley with movable sheave position more on the lower than above-mentioned
Install on utensil；And
Press-in rope, end side be engaging on above-mentioned urceolus and another side through above-mentioned urceolus inner side and
It is engaging among above-mentioned multistage inner core and is positioned on outermost outermost inner core, and position, midway is wound on
State in press-in fixed block and above-mentioned press-in movable sheave,
Above-mentioned pulley is installed utensil and is included:
On the direction orthogonal with the length direction of above-mentioned urceolus, it is arranged in the both sides across above-mentioned telescoping cylinder,
And a pair tie-beam being connected with above-mentioned telescoping cylinder；
The length direction of this pair tie-beam separates and links the armite between above-mentioned each tie-beam；With
And
Length direction along above-mentioned each tie-beam is separately provided on above-mentioned each tie-beam, and supports
State the flexible pulley support axle of flexible movable sheave and support the press-in of above-mentioned press-in movable sheave
Use pulley support axle.
The deep excavator with multi-stage expansion arm assembly the most according to claim 5, its feature exists
In,
Being provided with guide rail on above-mentioned urceolus, this guide rail is arranged in above-mentioned pulley and installs each tie-beam of utensil with upper
State between telescoping cylinder, and guide along the length direction of above-mentioned urceolus according to stretching of above-mentioned telescoping cylinder
State pulley and each tie-beam of utensil be installed,
Installing at above-mentioned pulley and be provided with slide unit between utensil and above-mentioned guide rail, this slide unit makes above-mentioned cunning
Wheel is installed utensil and is successfully moved along above-mentioned guide rail,
Installing at above-mentioned pulley and be provided with slide unit maintaining part on utensil, this slide unit maintaining part keeps above-mentioned
Slide unit, above-mentioned slide unit relative to above-mentioned slide unit maintaining part along the length direction of above-mentioned guide rail
Can install, dismantle.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013124636A JP5816225B2 (en) | 2013-06-13 | 2013-06-13 | Multistage telescopic arm device and deep digging machine equipped with multistage telescopic arm device |
| JP2013-124636 | 2013-06-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104234101A CN104234101A (en) | 2014-12-24 |
| CN104234101B true CN104234101B (en) | 2016-11-16 |
Family
ID=52222935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410260802.6A Active CN104234101B (en) | 2013-06-13 | 2014-06-12 | Multi-stage expansion arm assembly and there is the deep excavator of multi-stage expansion arm assembly |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5816225B2 (en) |
| KR (1) | KR101625073B1 (en) |
| CN (1) | CN104234101B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107701126A (en) * | 2017-11-09 | 2018-02-16 | 盐城凯发石油机械有限公司 | A kind of erection device of going into the well for aiding in sucker rod connection |
| KR20240090314A (en) * | 2022-01-27 | 2024-06-21 | 히다찌 겐끼 가부시키가이샤 | deep excavator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3706330B2 (en) * | 2001-11-05 | 2005-10-12 | 日立建機株式会社 | Multi-stage telescopic arm and working machine |
| CN101831928A (en) * | 2010-05-13 | 2010-09-15 | 中国人民解放军63983部队 | Telescopic shoveling arm |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6282131A (en) * | 1985-10-04 | 1987-04-15 | Hitachi Constr Mach Co Ltd | Multistage telescopic arm for construction machine |
| JPH0634429Y2 (en) * | 1989-01-30 | 1994-09-07 | 日立建機株式会社 | Guide device for movable pulleys for construction machinery |
| JPH03267423A (en) * | 1990-03-15 | 1991-11-28 | Ryutaro Yoritomi | Multistage expandable arm for construction machine |
| JP2550045Y2 (en) * | 1991-11-19 | 1997-10-08 | 淳次 小川 | Telescopic arm device for construction machinery |
| JPH11148144A (en) * | 1997-11-14 | 1999-06-02 | Hitachi Constr Mach Co Ltd | Excavator for construction machine |
| JP2002021115A (en) * | 2000-07-03 | 2002-01-23 | Kobelco Contstruction Machinery Ltd | Excavator |
-
2013
- 2013-06-13 JP JP2013124636A patent/JP5816225B2/en active Active
-
2014
- 2014-05-12 KR KR1020140056579A patent/KR101625073B1/en active IP Right Grant
- 2014-06-12 CN CN201410260802.6A patent/CN104234101B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3706330B2 (en) * | 2001-11-05 | 2005-10-12 | 日立建機株式会社 | Multi-stage telescopic arm and working machine |
| CN101831928A (en) * | 2010-05-13 | 2010-09-15 | 中国人民解放军63983部队 | Telescopic shoveling arm |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5816225B2 (en) | 2015-11-18 |
| KR20140145538A (en) | 2014-12-23 |
| JP2015001059A (en) | 2015-01-05 |
| CN104234101A (en) | 2014-12-24 |
| KR101625073B1 (en) | 2016-05-27 |
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