CN1166558A - Surface mining shovel - Google Patents
Surface mining shovel Download PDFInfo
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- CN1166558A CN1166558A CN97109717A CN97109717A CN1166558A CN 1166558 A CN1166558 A CN 1166558A CN 97109717 A CN97109717 A CN 97109717A CN 97109717 A CN97109717 A CN 97109717A CN 1166558 A CN1166558 A CN 1166558A
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- cantilever
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- scraper bowl
- rotating shaft
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- 238000005065 mining Methods 0.000 title claims description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 132
- 239000000463 material Substances 0.000 claims abstract description 59
- 230000007306 turnover Effects 0.000 claims description 72
- 239000002689 soil Substances 0.000 claims description 40
- 230000009471 action Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 8
- 230000002459 sustained effect Effects 0.000 claims description 2
- 210000000088 lip Anatomy 0.000 claims 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims 1
- 230000033001 locomotion Effects 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 description 10
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000001737 promoting effect Effects 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000000284 resting effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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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
- E02F3/36—Component parts
- E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
- E02F3/427—Drives for dippers, buckets, dipper-arms or bucket-arms with mechanical drives
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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
- E02F3/308—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom working outwardly
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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
- E02F3/34—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 bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines
- E02F3/3405—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 bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines and comprising an additional linkage mechanism
- E02F3/3411—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 bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines and comprising an additional linkage mechanism of the Z-type
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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
- E02F3/34—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 bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines
- E02F3/358—Bucket-arms pivoted on a turntable being part of a tractor frame or buckets arranged on a turntable supported by the arms
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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)
- Load-Engaging Elements For Cranes (AREA)
- Shovels (AREA)
- Earth Drilling (AREA)
Abstract
A power shovel including: a frame; a boom extending upward from the frame, the lower end of the boom being mounted on the frame for pivotal movement relative thereto about a boom pivot axis; an arm mounted on the upper end of the boom for pivotal movement relative thereto about an arm pivot axis intermediate the upper and lower ends of the arm; a front dump bucket mounted on the arm adjacent the lower end thereof for tilting pivotal movement relative thereto about a bucket pivot axis, the bucket having an open mouth for scooping earth material into the bucket and for emptying the earth material from the bucket; a bucket tilting mechanism connected to the bucket for tilting the bucket relative to the arm about the bucket pivot axis for scooping and retaining earth material in the bucket and for emptying earth material from the bucket; an extendible and contractible hydraulic crowd mechanism connected to the boom and frame, when the machine extend the bucket move against to the frame's direction; and a hoist mechanism for pivoting the arm relative to the boom about the arm pivot axis, the hoist mechanism including a rotatable drum mounted on the frame and a rope which is connected to the arm adjacent the upper end thereof and which is windable on to and off of the drum.
Description
The present invention relates to surface mining shovel.
In the surface mining shovel (being called " electric power excavator " usually again) of common type, more representational is the P ﹠amp of Wisconsin state Milwaukee; The P that H Mining Equipment company makes; H Model 4100 types.This electric power excavator comprises that one is supported on one group of support on the crawler belt guide rail to move on the ground.The driving arrangement chamber is contained on the support, waves motor and gear driven mechanism in it support is turned round on the crawler belt guide rail.Promote capstan and corresponding motor thereof and make the driven wheel that promotes the capstan rotation also be installed in driving arrangement indoor.Operating room is positioned on the driving arrangement chamber.The frame support part extends upward from support.The lower end of microscler fixedly semi-girder is installed on the support, the semi-girder support member from the frame support part extend to outside the semi-girder end with the guiding semi-girder with respect to sole plate supports in a permanent position.One pulley is installed on the outer end of semi-girder.Be supported with rack pinion backhoe turnover mechanism (crowd mechanism) at the place, centre position of the end of semi-girder.The inside part of backhoe turnover mechanism supports lengthening bagger handle is to move with respect to semi-girder.Backhoe turnover mechanism moves the bagger handle with respect to semi-girder or does the backhoe turnover and move along the y direction of bagger handle under the driving of motor.Two component type baggers are installed on the outside end of bagger handle rigidly, and it comprises body and door.Lift cable is connected on the bagger and is wrapped in to promote by pulley and makes bagger rise or descend on the capstan.One operating mechanism as drag-line, is connected to bagger by operating room, is used to open the tight part of door bolt and the bagger door is opened under action of gravity, thereby the soil property material is poured out from bagger.
The United States Patent (USP) 3,465,903 of authorizing Wilson discloses the electric power excavator of another kind of form.This electric power excavator comprises a relatively short semi-girder.The place is equipped with the triangle handle of a lengthening in the middle of between the two ends of semi-girder, and it rotates around the elbow hinge that is positioned at the outside end place of semi-girder.The lower end that scraper bowl is installed in this handle is toppled in the front portion, and a pulley is installed in the upper end of this handle.One end and the frame of lift cable are fixed, and lift cable is on the pulley that is positioned on the triangle handle and on rack-mounted another pulley, and the other end of lift cable is around promoting on the capstan, so that the triangle handle is rotated with respect to semi-girder.Be connected by power-actuated rope backhoe turnover mechanism on the handle fulcrum of elbow hinge and make bucket motions to transmit horizontal backhoe force component.One leaning device is installed on the handle so that scraper bowl tilts with respect to handle.Leaning device comprises: a main Connection Element, main Connection Element are rotatably connected on the handle of the mid portion between its two ends; Asking of pin on the total member of one hydraulic pressure, the rear end that it is connected main connector and an outside end that is positioned at semi-girder; And a connection piece, it is connected between the top of the front end of main connector and scraper bowl.
Another kind of typical open coal mine exploitation excavator is P ﹠amp; The P ﹠amp that H Equipment company produces; H Model 2250A series, it is commonly referred to " hydraulic excavator digger ".This hydraulic excavator digger comprises and is supported on one group of support on the crawler belt guide rail.The driving arrangement chamber is positioned on the support, has hydraulic pressure to wave motor and gear driven mechanism in it, and support is rotated on the crawler belt guide rail.The lower end of short semi-girder is connected on the support to rotate around horizontal axis.The total member slave of first hydraulic pressure seat extends to semi-girder, is used to support semi-girder and semi-girder is rotated with respect to support.The inner of short cantilever and the outer end of semi-girder link to each other, to rotate around second horizontal axis.The total member of second hydraulic pressure extends to cantilever from semi-girder, in order to supporting cantilever and cantilever is rotated with respect to semi-girder.Two component type scraper bowls with body and door are installed in the outer end of cantilever, to rotate around the 3rd horizontal axis.The 3rd hydraulic pressure assembly extends to scraper bowl from cantilever, is used to make scraper bowl to tilt with respect to cantilever.One suitable scraper bowl opening mechanism, such as be the total member of a hydraulic pressure, it is connected between scraper bowl door and the scraper bowl main body, is used to open scraper bowl and the material in it is poured out.
The weak point of some electric power excavator is that its rack pinion backhoe turnover mechanism weight is big, and cost and maintenance cost are expensive, and especially the maintenance of rack pinion backhoe turnover mechanism will be finished by the maintenance professional who is subjected to suitable specialized training.
Another shortcoming that has the electric power excavator of rack pinion backhoe turnover mechanism is, when backhoe power puts on when making it to enter in the soil property material on the bagger, a counter-force passes back on the semi-girder, makes semi-girder with respect to support counter-rotating or " jack-up ".Semi-girder can be reduced the efficient of hoisting mechanism by jack-up, also can make the bigger stress of generation on semi-girder support member and the lift cable because of the power that absorbs through the semi-girder passback, but also limit the size that in fact acts on the backhoe power on the bagger.
Another shortcoming that has the electric power excavator of rack pinion backhoe turnover mechanism is, when when the hinged hydraulic means of bagger handle and bagger is supplied with hydraulic fluid, the operating position and the working method of its backhoe turnover mechanism can hinder hydraulic circuit to lead to the bagger direction from support.
The deficiency of some other electric power excavator is that rope backhoe turnover mechanism structure is comparatively complicated, and maintenance cost is higher, and when active force bore in this mechanism of design on two opposite directions, it is particularly outstanding that the problems referred to above become.
Another shortcoming of electric power excavator is that its semi-girder is supported on a permanent position, thereby can not rotate around support.
The electric power excavator also has a shortcoming to be, promptly bagger is fixed on the bagger handle rigidly, rather than and the bagger handle hinged, hinged be for from the opening slope or ground can control the attitude of bagger when dipping material with respect to ground, slope.Bagger is fixed on a special problem of bringing on the bagger handle is, during when the slope lower from position or from the bottom digging on slope, the duty factor of bagger is descended.The problem of bringing thus is, for filling up bagger, must make it bigger digging moving range, and like this, bagger must be supported by long handle and a semi-girder.Bagger is fixed on the handle also effective utilization that can hinder bagger when the land clearing, and this is because bagger can not move to dip ground material along long horizontal route on the ground, also can not be dug in the ground.Because it has this limitation, when the ground around the electric power excavator is cleared up, to adopt auxiliary equipment usually, as the front end loader.Bagger is fixed on also has a deficiency to be on the handle, bagger can not be pried open the material of the compacting on the slope or be loosening.
The shortcoming of electric power excavator also is, its bagger is very heavy, complex structure, the maintenance cost height, thus make whole electric power excavator become very heavy, especially for supporting bagger, the size of handle and semi-girder must be done very greatly, and this makes the barycenter of handle, semi-girder and bagger away from the centre of gyration line of support, therefore, excavator must be provided with very big counterweight when swinging because of very big inertia force.Correspondingly, for bearing this inertia force, putting the part dimension that shakes with driving mechanism will certainly be very big.The barycenter of accessory is that for the weight of electric power excavator, the actual load or the capacity of bagger are less away from another consequence that support centre of gyration tape comes.
Another shortcoming of electric power excavator is to be the long handle of adaptation, and in the both sides of cleaning load wagon behind the material of putting upside down on the load wagon, the bagger handle must to be bearing in position higher on the semi-girder.The problem of bringing thus is, when bagger went to the load wagon top from the too near position of load wagon, material to be unloaded can rest in the bagger.Certainly can bagger be lifted very high at an easy rate, into load wagon be poured material by far place at the distance load wagon, but this can cause powerful impact even damage to load wagon.
The shortcoming of hydraulic excavator digger is that its lifting piece is too heavy, comprises semi-girder, cantilever, scraper bowl and relevant Hydraulic Elements, and this has reduced the hoisting power of hydraulic excavator digger, upwards digging power and digging radius.Compare with the electric power excavator, the Hydraulic Elements that are used for supporting cantilever, semi-girder and scraper bowl are combined does not possess the deadweight hoisting power, and the electric power excavator then can.
Another shortcoming of hydraulic excavator digger is that to the high duty cycle application scenario as mining, it is not too reliable that the large hydraulic element is operated under the elevated pressures.
Another shortcoming of hydraulic excavator digger is that when carrying out digging operation, the power of being come by cantilever and semi-girder transmission can make the front end of support be lifted away from ground.For being rigidly connected, they pass impact force to support between cantilever, semi-girder and the relevant Hydraulic Elements.
Another shortcoming of hydraulic excavator digger is, when carrying out digging operation, the operation of Hydraulic Elements combination that is used to support semi-girder, cantilever and scraper bowl is comparatively complicated.The motion of the lifting piece of electric shovel has only two freedoms of motion, and the lifting piece of hydraulic excavator digger then has three freedoms of motion, thereby the operation of hydraulic excavator digger is than the electric shovel complexity.In addition, when adopting the hydraulic excavator digger digging, usually need all Hydraulic Elements to work simultaneously.
The invention provides a kind of power digger, overcome above-mentioned deficiency.It comprises a support and a frame support part, and the frame support part extends upward from support.In the upper end of frame support part first rotary pulley is housed, a short semi-girder extends upward installation from support, and it can rotate around support.The handle of one banana-shaped or cantilever are installed in the upper end of semi-girder, and it can relatively rotate around the axle of cantilever.One hydraulic hoe turnover mechanism is connected between frame support part and the semi-girder, drives semi-girder during its work and rotates with respect to support.Hydraulic hoe turnover mechanism is connected with semi-girder, and the distance of tie point and cantilever rotating shaft is about 1/3 of boom reach.The middle place of cantilever rotating shaft between the top and bottom of handle.In the upper end of cantilever second pulley is housed.At the lower end near cantilever one large-scale anterior loader bucket is housed, this scraper bowl can be done to tilt to move with respect to cantilever, and this is to be driven by the bucket tilt mechanism that is connected with scraper bowl to carry out.Bucket tilt mechanism comprises a Z type connector, and this connector has the main Connection Element of a lengthening, and it is installed in rotation on the cantilever; One hydraulic pressure assembly, it is connected between first end and cantilever fulcrum of main Connection Element; Secondary Connection Element is suitable between second end and scraper bowl of main Connection Element.Hoisting mechanism drives cantilever and rotates with respect to semi-girder around the cantilever fulcrum.Hoisting mechanism comprises one around the rope that promotes on the capstan, and this rope passes first and second pulleys, and is fixed on the frame support part.
When the steering maneuver excavator, operating personnel can be by handling hoisting mechanism work, cantilever is rotated with respect to semi-girder, and scraper bowl is moved along the constant accurate track of a radius, or, semi-girder is rotated with respect to support by the work of operating hydraulically operated backhoe turnover mechanism, and scraper bowl property track roughly along the line is moved, or, scraper bowl is moved along another kind of track, thereby make the scraper bowl injection wait to adopt in the material by operation hydraulic hoe mechanism and hoisting mechanism work.After the scraper bowl injection was waited to adopt in the material, most power of digging and lifting force made cantilever rotate with respect to semi-girder by the hoisting mechanism operation and provide.For make scraper bowl especially near on the ground of support during digging along continuous straight runs move, can operate hydraulic hoe turnover mechanism and hoisting mechanism simultaneously.For also efficiently scraper bowl being filled up and pours out fast, scraper bowl and cantilever are hingedly connected together.
The inventor thinks, makes in the scraper bowl injection soil property material, and backhoe turnover mechanism and semi-girder need only provide less backhoe moment, thereby boom reach is shorter.Make cantilever can be scraper bowl injection material to be adopted by the lifting operation very big moment is provided with respect to the semi-girder rotation.The quality of semi-girder and cantilever also has contribution to the generation of backhoe power.When carrying out digging by promoting operation rotation cantilever, hydraulic hoe turnover mechanism is mainly used in semi-girder is rotated with respect to support, thereby regulate the position (that is to say, adjust digging envelope) of cantilever fulcrum, and semi-girder is supported on a resting position with respect to support with respect to support.In addition, backhoe turnover mechanism is used to rotate semi-girder; To carry out digging operation near the place, ground.
Because power digger has hydraulic hoe turnover mechanism, thereby making and safeguarding do not have disadvantage aspect the backhoe turnover mechanism of rack pinion or the rope backhoe rotation mechanism.The manufacturing of hydraulic hoe turnover mechanism is simple comparatively speaking, cost is low, in light weight, and its maintenance is also very simple, cost is low, and this mainly is to make cantilever prop up point location to adjust the digging radius because this backhoe mechanism only is mainly used in.Hydraulic hoe turnover mechanism supports semi-girder with respect to support, has avoided semi-girder by jack-up.The tie point of hydraulic hoe turnover mechanism and the outer end of semi-girder are spaced apart, and the frame support part that connects hydraulic hoe turnover mechanism is installed near semi-girder, so that the size of this mechanism is shorter, thereby provides enough big operating rate.
Be digging operation expeditiously, scraper bowl is filled up in less digging scope fast, digging compliance is strong and can clear up the load wagon both sides of waiting, and anterior loader bucket and cantilever are hinged.Therefore cantilever and semi-girder size are not too big.Anterior loader bucket weight is lighter, and install or is supported on the semi-girder at the middle place between the two ends of cantilever, so the semi-girder size of supporting cantilever and scraper bowl must be very not big.The barycenter of cantilever, semi-girder and scraper bowl disembark the seat nearer, so compare with the electric shovel with suitable digging ability, the weight of power digger is lighter.Compare with electric shovel, the required counterweight of power digger is little, and the inertia force that waves generation is little, and when cantilever when vertical direction is rotated, the moment that semi-girder produces is also little, so driving and wave that parts are light, cost is low.Anterior loader bucket that it is light and semi-girder manufacturing and maintenance cost are also lower.
Power digger includes the hoisting mechanism that is used to make the cantilever rotation, thereby avoided using the heavy hydraulic element of the hoisting power that reduces power digger greatly, the digging power that makes progress and digging radius, compare with the electric power excavator, hoisting mechanism is reliable and a hoisting power is provided, in addition, hoisting mechanism can also absorb from the next impact force of cantilever transmission.
The digging of power digger operation is fairly simple, and this is because hydraulic hoe turnover mechanism can make the discharging scraper bowl be positioned to make it to remain on resting position by the hoisting mechanism operation then near digging position or its, supports semi-girder, to move and to promote scraper bowl.For making the scraper bowl injection wait to adopt in the material, operating personnel can be to hoisting mechanism, hydraulic hoe turnover mechanism, and bucket tilt mechanism or its are combined into line operate.Cantilever can rotate in bigger range of movement, with near on the ground of support or at the upper position on slope and carry out the digging effect away from the position of support.
By reading following detailed and claims, those skilled in the art can be clear that other purpose of the present invention and advantage.
Lateral view when Fig. 1 is expression power digger initial position, wherein semi-girder is in upper position, and cantilever rotates;
Lateral view when Fig. 2 is in the digging position for the expression power digger, wherein scraper bowl is moved horizontally to and waits to adopt in the material slope;
Fig. 3 is in the lateral view when filling up the position for representing power digger, and wherein scraper bowl is raised, and has been shown in dotted line transporting position;
Lateral view when Fig. 4 is in dump position for the expression power digger has been shown in dotted line transporting position;
Partial side view when Fig. 5 is in initial position shown in Figure 1 for power digger.
To be described in detail one embodiment of the present of invention below.But should be understood that the present invention is not limited to the structure and the layout of the parts described in manual and the accompanying drawing, the present invention also can have other numerous embodiments.In addition, term used in the manual only is the purpose that is used for description, and should not regard as in order to limit the present invention.
Accompanying drawing shows a kind of power digger 10, and it has comprised different characteristic of the present invention.In the open in the mining, this power digger 10 can dig in the soil property layer and the soil property thing is moved.
(not shown) in another embodiment, second backhoe turnover mounting points 43 also can be positioned at the another location of semi-girder 30, thereby different backhoe power is provided for semi-girder 30, or provides different operating rates for hydraulic pressure assembly 41.
Semi-girder 30 can rotate between last position (see figure 1) and upper/lower positions (see figure 5) around semi-girder rotating shaft 34 with respect to support 12, and they shrink corresponding with the state of stretching out fully with hydraulic pressure assembly 41 respectively fully.When power digger 10 rests on the horizontal plane, when semi-girder 30 is in position (Fig. 1), cross the extension line of semi-girder rotating shaft 34 and cantilever rotating shaft 38 and the angle that vertical direction forms about 10 degree.When semi-girder 30 is in upper/lower positions (Fig. 5), cross the extension line of semi-girder rotating shaft 34 and cantilever rotating shaft 38 and the angle that vertical direction forms about 50 degree.In an illustrated embodiment, hydraulic pressure assembly 41 elongation forces second backhoe turnover mounting points 43 on the semi-girder 30 to leave first backhoe turnover mounting points 42 on the frame support part 22, thereby makes semi-girder 30 rotate (shown in the figure for along clockwise direction).When hydraulic pressure assembly 41 shrinks, second backhoe turnover mounting points 43 is pulled to first backhoe turnover mounting points 42, thereby make semi-girder 30 upwards rotate (shown in the figure in the counterclockwise direction).
The work of hydraulic pressure assembly 86 can drive main Connection Element 70 and rotate, so that scraper bowl 52 tilts between the position that is inclined upwardly (Fig. 1) and downward-sloping position (Fig. 5) with respect to cantilever 44.More particularly, when hydraulic pressure assembly 86 stretches (Fig. 1), the action of Z type connector 68 can make scraper bowl 52 towards the inclined position that tilts, so that the soil property material is scooped into and remains in the scraper bowl 52.When hydraulic pressure assembly 86 retractions (Fig. 5), the action of Z type connector 68 can make scraper bowl 52 towards the inclined position that has a down dip, so that the soil property material is poured out in scraper bowl.When scraper bowl 52 when the position that has a down dip (Fig. 5) tilts, scraper bowl 52 props up block piece 89 in the lower end 48 of cantilever 44, to reduce to act on the load on the leaning device 66.
Cantilever rotating shaft 38, pulley mounting points 98 and scraper bowl rotating shaft 54 form a triangle.More particularly, in line segment A (see figure 5) of extending between cantilever fulcrum 38 and the pulley mounting points 98 and the angle between the line segment B that extends between pulley mounting points 98 and the scraper bowl rotating shaft 54 is 40 °, the angle of line segment B and the line segment C that extends between scraper bowl rotating shaft 54 and cantilever rotating shaft 38 is 30 °, and the angle between line segment A and the C is 110 °.
When semi-girder 30 is in the position, cantilever 44 is in down position (seeing Fig. 1 to 5) around the shaft, and line segment C forms with respect to vertical direction and is about 15 ° angle D.Be in when therefore, scraper bowl 52 excavates near the position of support 12 and horizontal plane closely.When cantilever 44 was in as shown in Figure 1 down position around the shaft, upper end 46 separated certain distance towards direction and the cantilever rotating shaft 38 away from support 12.Upper end 46 shape makes cantilever 44 to move at least 100 ° scope from down position around the shaft to lifting position (Fig. 5) around the shaft, when lifting position around the shaft, and the angle that line segment C (Fig. 5 is not shown) and vertical direction formation are at least 115 °.In addition, when cantilever 44 was in around the shaft down position, lower end 48 separated certain distance towards direction and the cantilever rotating shaft 38 away from support 12.The shape of the lower end 48 of cantilever 44, especially scraper bowl rotating shaft 54 is with respect to the position of cantilever rotating shaft 38, can guarantee to exploit by rotating cantilever 44 place, slope higher in the position, visible cantilever 44 makes spader that very big productive area be arranged, and is especially vertically going up.
The shape of cantilever 44 also make the center of gravity of cantilever 44 and cantilever rotating shaft 38 from very near, thereby and support 12 from very near.Therefore for cantilever 44 is upwards rotated, hoisting mechanism 90 is work done hardly comparatively speaking.The shape of the upper end 46 of cantilever 44 especially pulley installation shaft 98 has guaranteed that with respect to the position of cantilever dress axle 38 hoisting mechanism 90 drives the efficient that cantilevers 44 rotate, because in all positions of cantilever 44 moment all of a size suitable.In the time will promoting scraper bowl and pour out with the material in it, scraper bowl rotating shaft 54 can make scraper bowl 52 be in suitable angle with respect to the position of cantilever rotating shaft 38.And the shape of cantilever 44 lower ends 46 guaranteed that Z type connector 68 can not stretch or be in cantilever below 44 backward, thereby when pouring out from scraper bowl 52 when excavating or with material, Z type connector is unlikely damage.
Work by hoisting mechanism 92 makes cantilever 44 upwards rotate around cantilever rotating shaft 38, scraper bowl 52 in the soil property material by digging position (Fig. 2) to the 3rd or fill up position (shown in the solid line among Fig. 3) and move, because bucket tilt mechanism 66 is connected with cantilever rotating shaft 38, when cantilever 44 upwards rotates, scraper bowl 52 is in fixing obliquity with respect to cantilever 44, and bucket tilt mechanism 66 is failure to actuate.
Power digger is compared with the electric shovel with suitable bagger capacity, and weight is light.Such as, capacity (about 46yd of heavily about 1,700,000 pound power digger 10 its scraper bowls
3) and heavily about 2,200,000 pound electric shovel, its exploitation radius is about 78 feet.
The length of semi-girder 30 is short and in light weight.In an illustrated embodiment, semi-girder 30 is in the length of part between cantilever rotating shaft 38 and the semi-girder rotating shaft 34 length less than the line segment C (Fig. 5) that extends between cantilever rotating shaft 38 and scraper bowl rotating shaft 54, and less than half of the length of the line segment A that between the upper end 46 of cantilever 44 and lower end 48, extends.Semi-girder 30 in light weight, simple in structure, make and maintenance cost low.
It is lighter to promote accessory (semi-girder 30, cantilever 44 and scraper bowl 52) weight, and the disembark rotary centerline of seat 12 of its barycenter is nearer.This is because scraper bowl 52 is in light weight, semi-girder 30 length weak point, in light weight and approximate vertical, the close cantilever rotating shaft 38 of the barycenter of cantilever (thereby near support 12) in addition.The inertia force that scraper bowl 52 is swung above load wagon that relative crawler belt guide rails 14 rotations of support 12 produce is less, and it is also smaller to act on the moment that cantilever 44 is vertically rotated.Therefore, the weight of swing and driving part is lighter relatively.
Hydraulic hoe turnover mechanism 40 structures are quite simple, and maintenance is also simple and expense is low.This mechanism's length is shorter, can quick acting.
The hoisting power of power digger 10 is bigger than hydraulic crawler excavator, and scraper bowl 52 mainly is that 90 actions drive cantilever 44 rotations and rise by hoisting mechanism.Drive the rotation of cantilevers 44 by hoisting mechanism 90, scraper bowl 52 can be moved along horizontal trajectory, so that near the material the ground is scooped into scraper bowl, or moves so that the material on the well head slope is scooped into scraper bowl along the track that rises and maybe this material to be poured in the load wagon.Hoisting mechanism 90 is a kind of devices more reliably that move and promote scraper bowl 52.Hoisting mechanism 90 also can absorb by cantilever 44 and transmit the impact of coming.During hoisting mechanism 10 work, the scraper bowl 52 that hydraulic hoe turnover mechanism 40 will not load usually places or near the digging position, makes it remain on resting position with support semi-girder 30, thereby move and promote scraper bowl 52.
Other characteristics of the present invention are described in appended claims.
Claims (20)
1. power digger that is used to be dug into and transfer the soil property material, it comprises:
One support;
One stretches upwards and has the semi-girder of top and bottom from support, and the lower end of semi-girder is installed on the support, to rotate with respect to support around the semi-girder rotating shaft;
One roughly is the cantilever of banana-shaped, it is installed in the upper end of semi-girder to rotate with respect to semi-girder around the cantilever rotating shaft, described cantilever has top and bottom, described cantilever rotating shaft is between the cantilever top and bottom, and the cantilever rotating shaft is spaced apart with the line of crossing described top and bottom towards the support direction;
One contiguous described cantilever lower end is installed in the anterior loader bucket on the cantilever, and it does to tilt to rotate with respect to cantilever around the scraper bowl rotating shaft, and described scraper bowl has an opening, is used for the soil property material being scooped into scraper bowl or the soil property material being poured out from scraper bowl;
One bucket tilt mechanism, described mechanism is connected with scraper bowl, be used to make scraper bowl being inclined upwardly to tilt with respect to cantilever between position and the downward-sloping position around the scraper bowl rotating shaft, when being inclined upwardly the position, scraper bowl is used to dip and maintains the soil property material, when downward-sloping position, scraper bowl is therefrom poured out the soil property material;
One across the turnover of the telescopic hydraulic hoe between semi-girder and support mechanism, described backhoe turnover mechanism locates to be connected with semi-girder at first, locate to be connected at second with support, in the mining process, the elongation action of backhoe turnover mechanism can force separate at described first and second, thereby scraper bowl is moved along leaving the support direction;
One hoisting mechanism that cantilever is rotated with respect to semi-girder around the cantilever rotating shaft, described hoisting mechanism comprises: one is installed in the rotatable capstan on the support; One rope, the upper end of the contiguous cantilever of described rope be connected on the cantilever and can be wound on the capstan and on the capstan around down.
2. power digger as claimed in claim 1, wherein cantilever rotating shaft, top and bottom form a triangle, cantilever rotating shaft and upper end form article one limit, top and bottom form the second limit, lower end and cantilever rotating shaft form the 3rd limit, article one, the angle on limit and second limit is about 40 °, and the angle on second limit and the 3rd limit is about 30 °, and the angle on article one limit and the 3rd limit is about 110 °.
3. power digger as claimed in claim 1 is wherein worked as power digger and is positioned on the ground line, and when backhoe turnover mechanism fully shrank, the line of semi-girder rotating shaft and cantilever rotating shaft and the angle of vertical were about 11 °.
4. power digger as claimed in claim 1, it also comprises the crawler belt guide rail of one group of support pedestal to move on the ground, when power digger is positioned on the ground line, when backhoe turnover mechanism fully shrank, the cantilever rotating shaft was positioned at the vertical plane of crawler belt guide rail.
5. power digger as claimed in claim 1 is wherein worked as power digger and is positioned on the ground line, and when backhoe turnover mechanism return on ground fully, first and second that connects backhoe turnover mechanism roughly was on the sustained height.
6. power digger as claimed in claim 1 comprises a frame support part that stretches upwards from support, and backhoe turnover mechanism locates to be connected with the frame support part at second.
7. power digger as claimed in claim 1, wherein bucket tilt mechanism comprises a Z type connector, described connector comprises: one has the main Connection Element of lengthening of the first relative end and second end, described main Connection Element is connected on the cantilever, winds a bit rotating with respect to cantilever between main Connection Element end; Have the secondary Connection Element of lengthening of first end and second end, first end of described secondary Connection Element and second end of main Connection Element are connected rotationally, and second end of described secondary Connection Element links to each other at scraper bowl rotating shaft some place spaced apart with scraper bowl; One has the telescopic hydraulic means of opposite end, and an end of described hydraulic means and first end of main Connection Element are connected, thereby and can drive main Connection Element and rotate and make bucket tilt.
8. power digger as claimed in claim 1, wherein the distance between rotating shaft of semi-girder upper cantilever and the semi-girder rotating shaft is less than the length that connects the line segment between cantilever rotating shaft and the scraper bowl rotating shaft.
9. power digger as claimed in claim 1, wherein backhoe turnover mechanism connect first is between the top and bottom of semi-girder, and the distance between wherein said first and the cantilever rotating shaft is about 1/3 of distance between cantilever rotating shaft and the semi-girder rotating shaft.
10. power digger as claimed in claim 1 comprises: a frame support part that stretches upwards from support; One hoisting mechanism, described mechanism comprises: be installed in first rotatable pulley on the frame support part, be installed in second rotatable pulley of cantilever upper end, and the rope of string on first, second pulley, described rope can be wrapped on the capstan or from it around down.
11. power digger as claimed in claim 1 comprises that one is positioned at the block piece of cantilever lower end, when scraper bowl sloped down to obliquity, described block piece propped up scraper bowl, to reduce to act on the load on the leaning device.
12. a power digger that is used to be dug into and transfer the soil property material, it comprises:
One support;
One stretches upwards and has the semi-girder of top and bottom from support, and the lower end of semi-girder is installed on the support, to rotate with respect to support around the semi-girder rotating shaft;
One cantilever, it is installed in the upper end of semi-girder to rotate with respect to semi-girder around the cantilever rotating shaft, and described cantilever has top and bottom, and described cantilever rotating shaft is between the cantilever top and bottom;
One contiguous described cantilever lower end is installed in the anterior loader bucket on the cantilever, and it does to tilt to rotate with respect to cantilever around the scraper bowl rotating shaft, and described scraper bowl has an opening, is used for the soil property material being scooped into scraper bowl or the soil property material being poured out from scraper bowl;
One bucket tilt mechanism, it is connected with scraper bowl, be used to make scraper bowl being inclined upwardly to tilt with respect to cantilever between position and the downward-sloping position around the scraper bowl rotating shaft, when being inclined upwardly the position, scraper bowl is used to dip and maintains the soil property material, when downward-sloping position, scraper bowl is therefrom poured out the soil property material;
One across the turnover of the telescopic hydraulic hoe between semi-girder and support mechanism, described backhoe turnover mechanism locates to be connected with semi-girder at first, locate to be connected at second with support, in the mining process, the elongation action of backhoe turnover mechanism can force separate at described first and second, thereby scraper bowl is moved along leaving the support direction;
One hoisting mechanism that cantilever is rotated with respect to semi-girder around the cantilever rotating shaft, described hoisting mechanism comprises: one is installed in the rotatable capstan on the support; One rope, the upper end of the contiguous cantilever of described rope be connected on the cantilever and can be wound on the capstan and on the capstan around down;
Wherein bucket tilt mechanism comprises a Z type connector, described connector comprises: one has the first relative end and the lengthening Connection Element of second end, main Connection Element is connected on the cantilever, winds a bit rotating with respect to cantilever between main Connection Element end; Have the secondary Connection Element of lengthening of first end and second end, first end of described secondary Connection Element and second end of main Connection Element are connected rotationally, and second end of described secondary Connection Element is linking to each other with scraper bowl rotating shaft some place spaced apart with scraper bowl; One has the telescopic hydraulic means of opposite end, and an end of described hydraulic means and first end of main Connection Element are connected, thereby and can drive main Connection Element and rotate and make bucket tilt.
13. power digger as claimed in claim 12, wherein cantilever is rotating, and when cantilever upwards rotated, the lower end of cantilever reached peak; When cantilever rotated, the lower end of cantilever reached minimum point, and first end of main Connection Element is positioned at second end top.
14. power digger as claimed in claim 12, wherein by the extension of hydraulic means, the work of Z type connector makes scraper bowl towards the inclined position that tilts.
15. power digger as claimed in claim 12, wherein rotating shaft is connected the other end of hydraulic means with cantilever.
16. a power digger that is used to be dug into and transfer the soil property material, it comprises:
One support;
One stretches upwards and has the semi-girder of top and bottom from support, and the lower end of semi-girder is installed on the support, to rotate with respect to support around the semi-girder rotating shaft;
One cantilever, it is installed in the upper end of semi-girder to rotate with respect to semi-girder around the cantilever rotating shaft, and described cantilever has top and bottom, and described cantilever rotating shaft is between the cantilever top and bottom;
One contiguous described cantilever lower end is installed in the anterior loader bucket on the cantilever, and it does to tilt to rotate with respect to cantilever around the scraper bowl rotating shaft, and described scraper bowl has an opening, is used for the soil property material being scooped into scraper bowl or the soil property material being poured out from scraper bowl;
One bucket tilt mechanism, described mechanism is connected with scraper bowl, be used to make scraper bowl being inclined upwardly to tilt with respect to cantilever between position and the downward-sloping position around the scraper bowl rotating shaft, when being inclined upwardly the position, scraper bowl is used to dip and maintains the soil property material, when downward-sloping position, scraper bowl is poured out soil property material philtrum;
One across the turnover of the telescopic hydraulic hoe between semi-girder and support mechanism, described backhoe turnover mechanism locates to be connected with semi-girder at first, locate to be connected with support at second, in the mining process, the elongation action of backhoe turnover mechanism can force separate at described first and second; Thereby scraper bowl is moved along leaving the support direction;
One hoisting mechanism that cantilever is rotated with respect to semi-girder around the cantilever rotating shaft, described hoisting mechanism comprises: one is installed in the rotatable capstan on the support; One rope, the upper end of the contiguous cantilever of described rope be connected on the cantilever and can be wound on the capstan and on the capstan around down;
Wherein on the semi-girder in the distance between cantilever rotating shaft and the semi-girder rotating shaft less than the length that connects the line segment between cantilever rotating shaft and the scraper bowl rotating shaft.
17. power digger as claimed in claim 16, wherein the distance between rotating shaft of semi-girder upper cantilever and the semi-girder rotating shaft is less than 1/2 of the line segment length of the top and bottom that connect cantilever.
18. a power digger that is used to be dug into and transfer the soil property material, it comprises:
One support;
One stretches upwards and has the semi-girder of top and bottom from support, and the lower end of semi-girder is installed on the support, to rotate with respect to support around the semi-girder rotating shaft;
One cantilever, it is installed in the upper end of semi-girder to rotate with respect to semi-girder around the cantilever rotating shaft, and described cantilever has top and bottom, and described cantilever rotating shaft is between the cantilever top and bottom;
One contiguous described cantilever lower end is installed in the anterior loader bucket on the cantilever, and it does to tilt to rotate with respect to cantilever around the scraper bowl rotating shaft, and described scraper bowl has an opening, is used for the soil property material being scooped into scraper bowl or the soil property material being poured out from scraper bowl;
One bucket tilt mechanism, it is connected with scraper bowl, be used to make scraper bowl being inclined upwardly to tilt with respect to cantilever between position and the downward-sloping position around the scraper bowl rotating shaft, when being inclined upwardly the position, scraper bowl is used to dip and maintains the soil property material, when downward-sloping position, scraper bowl is therefrom poured out the soil property material;
One across the turnover of the telescopic hydraulic hoe between semi-girder and support mechanism, described backhoe turnover mechanism locates to be connected with semi-girder at first, locate to be connected at second with support, in the mining process, the elongation action of backhoe turnover mechanism can force separate at described first and second, thereby scraper bowl is moved along leaving the support direction;
One hoisting mechanism that cantilever is rotated with respect to semi-girder around the cantilever rotating shaft, described hoisting mechanism comprises: one is installed in the rotatable capstan on the support; One rope, the upper end of the contiguous cantilever of described rope be connected on the cantilever and can be wound on the capstan and on the capstan around down;
Wherein backhoe turnover mechanism connect first is between the top and bottom of semi-girder, and the distance of described first and cantilever rotating shaft is about the cantilever rotating shaft to 1/3 of semi-girder rotating shaft distance.
19. power digger as claimed in claim 18, wherein first of connecting of backhoe turnover mechanism and the line of crossing between cantilever rotating shaft and the semi-girder rotating shaft separate certain distance.
20. a power digger that is used to be dug into and transfer the soil property material, it comprises:
One support;
The one frame support part that stretches upwards from support;
One stretches upwards and has the semi-girder of top and bottom from support, and the lower end of semi-girder is installed on the support, to rotate with respect to support around the semi-girder rotating shaft;
One cantilever, it is installed in the upper end of semi-girder to rotate with respect to semi-girder around the cantilever rotating shaft, and described cantilever has top and bottom, and described cantilever rotating shaft is between the cantilever top and bottom;
One contiguous described cantilever lower end is installed in the anterior loader bucket on the cantilever, and it does to tilt to rotate with respect to cantilever around the scraper bowl rotating shaft, and described scraper bowl has an opening, is used for soil property being scooped into scraper bowl or the soil property material being poured out from scraper bowl;
One bucket tilt mechanism, it is connected with scraper bowl, be used to make scraper bowl being inclined upwardly to tilt with respect to cantilever between position and the downward-sloping position around the scraper bowl rotating shaft, when being inclined upwardly the position, scraper bowl is used to dip and maintains the soil property material, when downward-sloping position, scraper bowl is poured out soil property material philtrum;
One across the turnover of the telescopic hydraulic hoe between semi-girder and support mechanism, described backhoe turnover mechanism locates to be connected with semi-girder at first, locate to be connected with support at second, in the mining process, the elongation action of backhoe turnover mechanism can force separate at described first and second; Thereby scraper bowl is moved along leaving the support direction;
One hoisting mechanism that cantilever is rotated with respect to semi-girder around the cantilever rotating shaft, described hoisting mechanism comprises: one is installed in the rotatable capstan on the support; One rope, the upper end of its contiguous cantilever be connected on the cantilever and can be wound on the capstan and on the capstan around down; Be installed in first rotatable pulley on the frame support part, be installed in second rotatable pulley of cantilever upper end, and the rope of string on first, second pulley, this rope can be wrapped on the capstan or from it around down.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US699,044 | 1985-02-07 | ||
| US69904496A | 1996-04-29 | 1996-04-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1166558A true CN1166558A (en) | 1997-12-03 |
Family
ID=24807701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97109717A Pending CN1166558A (en) | 1996-04-29 | 1997-04-25 | Surface mining shovel |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPH1046620A (en) |
| CN (1) | CN1166558A (en) |
| AU (1) | AU1913197A (en) |
| BR (1) | BR9701958A (en) |
| CA (1) | CA2199208A1 (en) |
| DE (1) | DE19717567A1 (en) |
| MX (1) | MX9703103A (en) |
| ZA (1) | ZA973363B (en) |
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| CN102561425A (en) * | 2011-12-27 | 2012-07-11 | 燕山大学 | Four-degree-of-freedom connecting rod working mechanism containing composite hinges |
| CN102628286A (en) * | 2011-02-01 | 2012-08-08 | 哈尼施费格尔技术公司 | Rope shovel with curved boom |
| CN102628285A (en) * | 2011-02-01 | 2012-08-08 | 哈尼施费格尔技术公司 | Shovel having a wristing dipper |
| CN102720228A (en) * | 2012-06-01 | 2012-10-10 | 燕山大学 | Face shovel spadework device provided with movement redundancy and capable of optimizing spading force |
| CN101680204B (en) * | 2007-05-17 | 2012-12-26 | 西门子工业公司 | Systems, devices, and/or methods regarding excavating |
| CN103882899A (en) * | 2012-09-21 | 2014-06-25 | 哈尼施费格尔技术公司 | Rope shovel |
| CN104975856A (en) * | 2015-06-19 | 2015-10-14 | 黄斌 | Excavator for ore extraction |
| CN105298497A (en) * | 2015-11-18 | 2016-02-03 | 中国神华能源股份有限公司 | Fan-shaped rotating mining method for recovering residual coal |
| US9611617B2 (en) | 2012-01-31 | 2017-04-04 | Harnischfeger Technologies, Inc. | Shovel with pivoting bucket |
| CN107130660A (en) * | 2012-12-21 | 2017-09-05 | 住友建机株式会社 | excavator |
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| JP4606365B2 (en) * | 2006-03-29 | 2011-01-05 | 株式会社クボタ | loader |
| CN102155028B (en) * | 2011-04-19 | 2012-06-27 | 唐兵 | Lifting type bucket control device and forklift |
| RU2485317C2 (en) * | 2011-04-22 | 2013-06-20 | Общество с ограниченной ответственностью "ИЗ-КАРТЭКС имени П.Г. Коробкова" (ООО "ИЗ-КАРТЭКС имени П.Г. Коробкова") | Method to form trajectory of dragline mine excavator bucket and working equipment for its realisation |
| CN103046586B (en) * | 2012-12-05 | 2015-09-16 | 燕山大学 | Optimize the excavation loading attachment of digging force |
| CN103437386B (en) * | 2013-07-01 | 2015-12-09 | 燕山大学 | Automatically can realize scraper bowl and promote the energy-conservation peaceful crowd shovel excavation loading attachment moving requirement |
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-
1997
- 1997-03-05 CA CA002199208A patent/CA2199208A1/en not_active Abandoned
- 1997-04-18 ZA ZA9703363A patent/ZA973363B/en unknown
- 1997-04-25 CN CN97109717A patent/CN1166558A/en active Pending
- 1997-04-25 DE DE19717567A patent/DE19717567A1/en not_active Withdrawn
- 1997-04-28 AU AU19131/97A patent/AU1913197A/en not_active Abandoned
- 1997-04-28 MX MX9703103A patent/MX9703103A/en unknown
- 1997-04-29 BR BR9701958A patent/BR9701958A/en not_active Application Discontinuation
- 1997-04-30 JP JP9126485A patent/JPH1046620A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101680204B (en) * | 2007-05-17 | 2012-12-26 | 西门子工业公司 | Systems, devices, and/or methods regarding excavating |
| US9297140B2 (en) | 2011-02-01 | 2016-03-29 | Harnischfeger Technologies, Inc. | Rope shovel |
| CN102628286A (en) * | 2011-02-01 | 2012-08-08 | 哈尼施费格尔技术公司 | Rope shovel with curved boom |
| CN102628285A (en) * | 2011-02-01 | 2012-08-08 | 哈尼施费格尔技术公司 | Shovel having a wristing dipper |
| CN102628286B (en) * | 2011-02-01 | 2016-12-14 | 哈尼施费格尔技术公司 | Rope shovel with bending cantilever |
| CN102628285B (en) * | 2011-02-01 | 2016-09-07 | 哈尼施费格尔技术公司 | There is the shovel of wristing dipper |
| CN102561425A (en) * | 2011-12-27 | 2012-07-11 | 燕山大学 | Four-degree-of-freedom connecting rod working mechanism containing composite hinges |
| US9611617B2 (en) | 2012-01-31 | 2017-04-04 | Harnischfeger Technologies, Inc. | Shovel with pivoting bucket |
| US10094090B2 (en) | 2012-01-31 | 2018-10-09 | Joy Global Surface Mining Inc | Shovel with pivoting bucket |
| CN102720228B (en) * | 2012-06-01 | 2014-12-24 | 燕山大学 | Face shovel spadework device provided with movement redundancy and capable of optimizing spading force |
| CN102720228A (en) * | 2012-06-01 | 2012-10-10 | 燕山大学 | Face shovel spadework device provided with movement redundancy and capable of optimizing spading force |
| CN103882899A (en) * | 2012-09-21 | 2014-06-25 | 哈尼施费格尔技术公司 | Rope shovel |
| CN107130660A (en) * | 2012-12-21 | 2017-09-05 | 住友建机株式会社 | excavator |
| CN107130660B (en) * | 2012-12-21 | 2021-01-29 | 住友建机株式会社 | Digging machine |
| CN104975856A (en) * | 2015-06-19 | 2015-10-14 | 黄斌 | Excavator for ore extraction |
| CN105298497A (en) * | 2015-11-18 | 2016-02-03 | 中国神华能源股份有限公司 | Fan-shaped rotating mining method for recovering residual coal |
Also Published As
| Publication number | Publication date |
|---|---|
| MX9703103A (en) | 1998-04-30 |
| BR9701958A (en) | 1998-11-10 |
| AU1913197A (en) | 1997-11-06 |
| JPH1046620A (en) | 1998-02-17 |
| DE19717567A1 (en) | 1997-10-30 |
| ZA973363B (en) | 1997-11-18 |
| CA2199208A1 (en) | 1997-10-29 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |