EP2458096A1 - Appareil pour broyer et cribler du sol pour une pelle d'excavatrice ou un crible fixe, et un godet ou un crible comprenant cet appareil - Google Patents

Appareil pour broyer et cribler du sol pour une pelle d'excavatrice ou un crible fixe, et un godet ou un crible comprenant cet appareil Download PDF

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Publication number
EP2458096A1
EP2458096A1 EP11191108A EP11191108A EP2458096A1 EP 2458096 A1 EP2458096 A1 EP 2458096A1 EP 11191108 A EP11191108 A EP 11191108A EP 11191108 A EP11191108 A EP 11191108A EP 2458096 A1 EP2458096 A1 EP 2458096A1
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EP
European Patent Office
Prior art keywords
blade
respect
screening
roller
bucket
Prior art date
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Granted
Application number
EP11191108A
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German (de)
English (en)
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EP2458096B1 (fr
Inventor
Alessandro Foffani
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Individual
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Individual
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Classifications

    • 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
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/407—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with ejecting or other unloading device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
    • B02C18/142—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers with two or more inter-engaging rotatable cutter assemblies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/18—Knives; Mountings thereof
    • B02C18/182—Disc-shaped knives
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F7/00—Equipment for conveying or separating excavated material
    • E02F7/06—Delivery chutes or screening plants or mixing plants mounted on dredgers or excavators
    • 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
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808—Teeth
    • E02F9/2858—Teeth characterised by shape
    • 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
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2866—Small metalwork for digging elements, e.g. teeth scraper bits for rotating digging elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/18—Knives; Mountings thereof
    • B02C2018/188—Stationary counter-knives; Mountings thereof

Definitions

  • the present invention concerns a ground crushing and screening device, for example used in a bucket or a fixed screen, a ground milling and grinding machine, such as for example hydro-millers or other, and the relative bucket or fixed screen.
  • a ground crushing and screening device for example used in a bucket or a fixed screen
  • a ground milling and grinding machine such as for example hydro-millers or other
  • the present invention allows to obtain a fine fragmentation and desired screening of the ground treated, even damp and clayey ground.
  • the European patent application EP-A-2.236.678 discloses a bucket for treating earth coming from an excavation, which is provided with screening means and dosing means to deliver a desired quantity of binding material, typically in powder form, for example calcium oxide and cement, into the ground being treated, in order to stabilize it.
  • the action of the screening means allows to separate the stones from the excavated ground and also to have a uniform distribution of the binding material in the ground.
  • Standard screening buckets are normally provided with screening means formed by a plurality of co-rotating parallel rollers, on each of which screening discs are keyed, disposed with a pitch between one and the other correlated to the desired screening value to be obtained.
  • fragmentation elements are keyed, also called hammers, shaped as a parallelepiped, the function of which is to move the material to make it emerge through one interspace and the next between the discs, downward.
  • the hammers cooperate with an oblong element that functions as a counter-hammer, typically comb-shaped, disposed on one side, parallel to the rollers, to fragment the material.
  • plasticity index we mean the difference between the liquidity limit and the plasticity limit defined by the Atterberg limits.
  • Screening rollers are also known on which star-type blades are keyed, that is, with a plurality of lobes which, however, do not have a good fragmentation capacity with damp or clayey grounds, although they do have a fine screening capacity for dry grounds or with a mainly sandy matrix.
  • Screening means of the "stellar" type are also known, usually made of wear-resistant plastic material, particularly effective in treating composts and grounds with a high, vegetable component, but in this case too, with a limited fragmentation capacity with regard to highly plastic grounds.
  • FR-A-2.423.263 describes a crushing machine to recover metals from different materials and provided with a plurality of knives or blades.
  • DE-A-3345299 describes a milling machine with rotating blades to mill the ground.
  • US-B-7,007,877 describes a screening apparatus to screen particulate material having a frame with a bottom aperture for the passage of the particulate material screened, and a plurality of blades supported by the frame.
  • Purpose of the present invention is to achieve a ground crushing and screening device, for example for a bucket, a fixed screen or other, and a relative bucket or fixed screen, which allow to obtain a good fragmentation capacity of the ground even with regard to damp and clayey grounds, and also a fine fragmentation of the ground, so as to obtain nominal dimensions of the fragments of ground treated of less than about 20-30 mm.
  • the Applicant has devised, tested and embodied the present invention to overcome the shortcomings of the state of the art and to obtain these and other purposes and advantages.
  • a crushing and screening device for a bucket, a fixed screen or other comprising at least a blade, or knife, that has a first constraint end to be keyed to a rotating roller of the crushing and screening device, a second end, opposite the first end, and an intermediate body connecting the first end and the second end, which develops in a substantially rectilinear direction, in use directed radially with respect to the roller on which the blade is keyed.
  • the second end has a fragmentation profile inclined backward with respect to a direction of rotation of the roller, having at least a segment inclined by a desired first acute angle with respect to the direction of development of the intermediate body, which allows a fine fragmentation even of damp grounds, with a high plasticity index, for example grounds with a humidity higher than 25% in weight, with a mainly clay matrix, that is, having a plasticity index higher than 10, defined as the difference in the Atterberg limits of liquidity and plasticity.
  • the geometry of the blade is such as to allow to separate, that is, to screen, large size elements, such as stones or other.
  • large size elements such as stones or other.
  • erratics with a nominal size of less than about 20-25 mm pass through the screening means, whereas those with sizes comprised between about 20-25 mm and a size of double this, are fragmented and reduced to the screening sizes. Larger size elements are retained in the bucket, the fixed screen or other, and possibly discharged at the end of treatment.
  • the profile is formed by at least two segments, a first segment that extends from the intermediate body inclined by the desired first acute angle, and a second segment, which extends from the first segment inclined by a desired second angle, bigger than the first angle, which may be acute, right or obtuse, according to requirements to define a section that progressively narrows from the intermediate body toward the second end.
  • at least the second end of the blade is coated with a hardening material.
  • the second coated end consequently has a substantially continuous curvilinear, pointed or beveled profile.
  • the curvilinear profile is shaped like a saber.
  • the blade is made of metal and can be subjected to a heat treatment or surface hardening, for example tempering, case-hardening or suchlike.
  • the fragmentation profile may have at least one, preferably two or more buttons or cutters consisting of hard metal inserts, which protrude from the shape described above and thus increase the fragmentation effect of the blade.
  • fragmentation profile of the second end is in itself substantially curvilinear, pointed or beveled, and facing backward, for example in the shape of a saber.
  • the crushing and screening device for example for a bucket, a fixed screen or other, comprises:
  • each of the fragmentation elements of the roller is made like the blade as discussed above.
  • the contrasting member comprises a plurality of counter-blades, disposed at a desired second distance with respect to each other, in some embodiments substantially coinciding with the first distance between the discs, so as to define second seatings into which the discs are inserted.
  • the counter-blades are disposed in a position coordinated with the screening discs to cooperate with the blades, and each has at least a contrasting wall shaped inclined in correlation, advantageously symmetrical, with the inclination of an associated blade, so as to define, during use, when the associated blade is inserted into the relative second seating, a third angle, between the blade, in particular in some embodiments, the second segment of the blade and the contrasting wall of the counter-blade, comprised between about 80° and about 100°.
  • each counter-blade has a crushing portion with a length correlated to the desired screening size to be obtained; the crushing portion is configured to cooperate with a mating face of a corresponding blade, so as to crush or screen objects such as stones, erratics, stone aggregates or other, with a nominal size smaller than said length, and to reject objects with a nominal size larger than said length, in particular more than double said length.
  • the present invention therefore, a good screening capacity is maintained, with regard to stones or stone aggregates of bigger sizes.
  • the distance between the discs of the crushing and screening device and the relative counter-blades that is, a length of the crushing portion
  • the size of the erratics screened is about double, that is, between about 40 mm and 50 mm, whereas the stones comprised between the two measurements are crushed.
  • the present invention also concerns a bucket or a fixed screen comprising a crushing and screening device as described above.
  • a bucket 12 is used to screen, or riddle, and fragment the ground resulting from excavations and comprises, for example, two lateral walls 14, a rear wall 18, a lower wall 20 that define a loading mouth 22 to access a loading compartment 24 delimited internally. At the lower part, the rear wall 18 and the lower wall 20 delimit a discharge opening 25 from which the treated ground comes out.
  • the ground from the excavations is introduced into the loading compartment 24 and is screened, or riddled, fragmented and advantageously mixed with binding materials, and then comes out through the discharge opening 25.
  • a crushing and screening, or riddling, device 26 is housed in the loading compartment 24 and comprises at least a roller 28 able to be rotated around its longitudinal axis X (arrow F in figs. 3 and 5 ) by motor means of a known type and not shown in the attached drawings.
  • the rollers 28 according to the present invention are configured to be co-rotating in the direction of the arrows F one with respect to the other.
  • the drive means are such that the rotation of the rollers 28 is reversible, in order to discharge the material separated.
  • a plurality of rollers 28 are provided, in this case two, which develop along relative longitudinal axes X, in this case disposed aligned in the direction of greatest development of the bucket 12, even though, in variants not shown here, they could be disposed in the direction of least development of the bucket 12, that is, in a position rotated by 90°.
  • rollers 28 are configured to rotate in the same direction, that is, they are co-rotating around the respective longitudinal axes X (arrows F in figs. 3 and 5 ).
  • a plurality of screening, or riddling, discs 30 are keyed onto each roller 28, all of which have the same diameter, disposed at a desired cadence, correlated to the screening effect to be obtained, along the longitudinal axis X.
  • a plurality of fragmentation blades, or knives, 10 are also keyed onto each roller 28, with a desired pitch along the longitudinal axis X of the same roller 28.
  • the discs 30 of each roller 28 are reciprocally disposed at a distance D1 ( fig. 3 ) correlated with each other at the desired screening size to be obtained, and therefore at the average nominal size of the elements, stones or other stone aggregates in the excavated ground, which can pass through the device 26.
  • the distance D1 is suitably sized to allow the passage and screening of elements with a nominal size less than about 20-25 mm, whereas those with sizes comprised between about 20-25 mm, and a size about double, are crushed and reduced to the screening size. Elements of a greater size are retained inside the loading compartment 24 of the bucket 12.
  • first seatings 29 ( fig. 3 ) into which the blades 10 are inserted, advantageously welded or constrained in some other way, to the roller 28 ( fig. 4 ).
  • a contrasting member 32 is disposed, in substantial proximity to one of the rollers 28, to cooperate with the discs 30 and the blades 10 so as to obtain a fine crushing of the ground treated.
  • the contrasting member 32 has an oblong conformation that develops parallel to the longitudinal axis X of the rollers 28 and is provided with a plurality of counter-blades 34 disposed at a second distance D2, one with respect to the other, correlated to the desired screening effect to be obtained, advantageously the same as the first distance D1 ( fig. 4 ).
  • the spacing between one counter-blade 34 and the next defines a comb-shaped configuration in which there are second seatings 35, into which facing blades 10 are inserted of the roller 28 closest to the contrasting member 32 when it is made to rotate in the direction of the arrow F.
  • each counter-blade 34 is formed by a metal blade, for example parallelepiped, in this case with a triangular base ( figs. 3, 4 , 5 and 6 ), and has a first face, in this case a lateral face of the parallelepiped, which defines a contrasting wall 38 defining a direction P which cooperates, in normal use, with the blades 10 along a desired abutment plane with a direction Q to crush and screen the resultant ground, as explained more fully hereafter in the description.
  • each counter-blade 34 has a second face defining a crushing profile 39, also intended to cooperate with the blade 10.
  • the portion 39 has a length L3 ( figs. 7 and 8 ) correlated to the size of the stones or erratics to be crushed, advantageously comprised between about 20 mm 25 mm.
  • each blade 10 has a cutting profile which comprises a first end 42, which is constrained to the roller 28 as indicated above, a second end 44, in the opposite position to the first end 42, and an intermediate body 46 connecting the two ends 42, 44, with a flat face 46a able to cooperate with the portion 39 of the corresponding counter-blade 34.
  • the intermediate body 46 develops along a substantially rectilinear direction L, that is, radial to the longitudinal axis X of the relative roller 28.
  • the second end 44 has a fragmentation profile inclined backward with respect to the direction of rotation F of the roller 28.
  • the second end 44 has at least a first segment 48 that develops from the face 46a of the intermediate body 46 in a desired direction Q inclined by a determinate first acute angle ⁇ 1 with respect to the radial direction L so as to define a section progressively narrowing from the intermediate body 46 toward the second 44.
  • the first angle ⁇ 1 has an amplitude comprised between 30° and 50°, preferably between 35° and 45°, for example about 40°.
  • the inclination of the first segment 48 with respect to the face 46a determines an inclined conformation facing backward with respect to the direction of rotation F which, as explained more fully hereafter, allows to repel, toward the inside of the bucket 12, the elements such as stones or other stone aggregates, indicated schematically by dashes and denoted by S in fig. 5 , which would otherwise be trapped between blade and counter-blade in the case of a rectilinear configuration or inclined facing forward, impeding the rotation of the rollers 28 and generating peaks of stress in the drive members that reduce their useful working life.
  • the second end 44 also has a second segment 50, which develops from the first segment 48 and closes again on the intermediate body 46, inclined by a second angle ⁇ 2 with respect to the radial direction L.
  • the second angle ⁇ 2 can be substantially a right angle, as in the attached drawings, or it can be acute, or even obtuse, according to need.
  • the external surface of the blades 10, in particular at least the second end 44 is coated with a hardening material, so that a substantially continuous curvilinear profile is obtained, for example like a saber facing backward with respect to the direction of rotation F.
  • the blade 10 may have inserts made of hard metal and also a cutting profile that develops along a broken line.
  • a blade 10 is shown provided with a first insert 51 made of hard metal, disposed embedded in the flat face 46a, and a second insert 53 made of hard metal, disposed in the first segment 48.
  • the second insert 53 is partly embedded in the upper end of the first segment 48, protruding from it with a part that develops inclined by a desired forward angle in the direction of rotation F of the roller 28 with respect to the inclination of the flat face 46a described above, that is, with a smaller amplitude than the first angle ⁇ 1 with respect to the radial direction L, but with the fragmentation profile still remaining, all in all, inclined backward with respect to the direction of rotation F of the roller 28.
  • the second segment 50 extends inclined downward from the second insert 53 so as to close the profile on the intermediate body 46, with a second angle ⁇ 2 which, in the solution shown here, is obtuse.
  • each blade 10 can be shaped directly during its production step with a curvilinear, pointed or beveled shape, facing backward.
  • the inclination at least of the first segment 48 of the second end 44 is correlated to that of the contrasting wall 38, so as to define a third angle ⁇ between direction Q and direction P ( fig. 5 ) when the blade 10 enters into the relative second seating 35 which has an amplitude comprised between about 80° and 100°, preferably between about 82.5° and about 95°, for example 85°.
  • the elements S can either be fragmented or they can pass through the device 26, in particular through the first 29 and second seatings 35, and expelled from the discharge opening 25; otherwise they are pushed back inside the bucket 12 by the cooperation between the blade 10 and the contrasting wall 38 of the relative counter-blade 34 or, if the roller 28 does not cooperate with the contrasting member 32, by the cooperation between two two discs 30 of the relative other roller 28 and the blade 10.
  • the compression forces exerted by the first segment 48 and by the contrasting wall 38 are split up, breaking into the two equal and opposite components and adding up to the other two components, determining a thrust on element S that is made to flip (flipper effect) toward the inside of the loading compartment 24, where it remains until the treatment of the ground is completed and the direction of rotation of the rollers 28 can be inverted, suitably discharging the separated stone material of sizes above the screening size.
  • each blade 10 is just a little more than the diameter of the disc 30, so that each blade 10 protrudes from the relative disc 30 by a distance equal to a little more than the radius. In this way, when the blade 10 enters rotating into the first seating 29, faced by a relative adjacent roller 28, it substantially grazes the lateral surface of the roller 28, cleaning it of the treated ground possibly present in the first seating 29.
  • each blade 10 protrudes for a prevalent part from the roller 28 on which the ground is resting, determines the fragmentation capacity of the present invention, since the blade 10 hits the ground with a determinate speed, thrusting it toward the corresponding counter-blade 34.
  • the first segment of the blade 10, substantially consisting of the face 46a of the intermediate body 46 that is parallel or almost parallel to the axis of the blade 10, performs an advantageous fragmentation function in cooperation with the counter-blade 34, which has its portion 39 that is substantially parallel to the face 46a when the blade 10 enters into the corresponding second seating 35 ( figs. 7 and 8 ).
  • Whatever is present between the face 46a and the portion 39 is therefore crushed ( fig. 7 ) according to the principle of a rotor crusher, unless the median radius of the stone or erratic exceeds length L3, advantageously comprised between 20 mm and 25 mm, of the portion 39.
  • the stone is only "pinched2 ( fig. 8 ) in the lower part and thrust upward, assisted by the inclined sides 38, 48 of the counter-blade 34 and blade 10, according to the "flipper" effect as cited above.
  • the length L3 of the portion 39 preferably between about 20 mm and 25 mm, has been carefully selected by Applicant after experimental testing, verifying that a greater length would also allow to crush smaller stones, as in a crusher, but requiring a much greater force from the blade 10, and therefore a slower speed of rotation and lower productivity. On the contrary, a smaller length L3 would cause a lower force applied but also a drastic drop in the fragmentation capacity with regard to plastic grounds.
  • the disposition of the blades 10 shown in the attached drawings is such that there are two blades 10 in each first seating 29 between the discs 30, reciprocally angularly offset by a fourth angle ⁇ with an amplitude comprised between about 60° and 70°.
  • the embodiment with two blades 10 for each first seating 29 is advantageous because, considering the direction of rotation of the rollers indicated by the arrow F, a first blade of a pair of blades 10 of a determinate roller 28 cleans the treated ground that can be trapped in a determinate angular sector of a first seating 29 directly facing another roller 28 downstream with respect to the direction of rotation indicated by the arrow F.
  • the second blade of the pair of blades 10 instead, cleans a successive angular sector of the same first seating 29, obtaining a complete cleaning of the first seating 29 and thus improving the operating conditions of the device 26.
  • the double blade 10 is formed by a single piece, suitably shaped to define the two blades and keyed to the roller 28.
  • the parts of the device 26, including the blades 10 and the counter-blades 34, are made of a metal resistant to the stresses envisaged in the applications in question.
  • the bucket 12 In normal use, the bucket 12 is put with the plane of the loading mouth 22 horizontal and the ground to be treated is introduced inside the loading compartment 24.
  • the device 26 is simultaneously driven and the co-rotating rollers 28, thanks to the action of the discs 30 and the blades 10, determine the screening and fine fragmentation of the ground, into which a desired quantity of binding material is gradually introduced.
  • the co-rotation of the rollers 28 determines both the screening of the ground, assisted by the fragmentation effect of the blades 10, and also the advance of the material to be treated toward the contrasting member 32 where, thanks to the cooperation of the blades 10 and the counter-blades 34 as described above, the stone material is either crushed and screened, if it is smaller than the screening size set, or, if it is bigger, is rejected and, thanks to the "flipper" effect, kept inside the loading compartment 24 until, by inverting the rotation of the rollers 28, it is suitably discharged at the end of treatment.
EP20110191108 2010-11-29 2011-11-29 Appareil pour broyer et cribler du sol pour une pelle d'excavatrice ou un crible fixe, et un godet ou un crible comprenant cet appareil Active EP2458096B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITUD2010A000220A IT1402808B1 (it) 2010-11-29 2010-11-29 Coltello per un dispositivo di frantumazione e vagliatura del terreno di una benna, di un vaglio fisso od altro, dispositivo di frantumazione e vagliatura del terreno e relativa benna o vaglio fisso.

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EP2458096A1 true EP2458096A1 (fr) 2012-05-30
EP2458096B1 EP2458096B1 (fr) 2013-08-07

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JP2016223193A (ja) * 2015-06-01 2016-12-28 有限会社センチュリーテック 残土改良機
WO2016207714A1 (fr) * 2015-06-25 2016-12-29 Rem Holding Limited Dispositif de compactage de déchets
CN106914327A (zh) * 2017-03-23 2017-07-04 成都万家健康管理股份有限公司 一种基于碎纸机的碎纸设备
CN107233985A (zh) * 2017-05-11 2017-10-10 刘慎柱 一种地质勘测矿石破碎设备
CN107511232A (zh) * 2017-08-25 2017-12-26 宣城尤达美智能科技有限公司 一种机器人
GB2554888A (en) * 2016-10-12 2018-04-18 Crushers 4 Sale Ltd Impact Crusher Assembly
JP2019183595A (ja) * 2018-04-03 2019-10-24 ウエダ産業株式会社 バケット装置
CN110665580A (zh) * 2019-11-28 2020-01-10 缙云台杏电子科技有限公司 一种不同颗粒大小的磨料形成分筛一体化设备
CN110799707A (zh) * 2017-07-11 2020-02-14 布雷甘泽机械股份公司简称Mb股份公司 筛分斗
KR102082964B1 (ko) * 2019-01-09 2020-02-28 주식회사 자우버 파쇄날 간의 교합이 긴밀하게 이루어지는 파쇄장치
CN112252396A (zh) * 2020-10-21 2021-01-22 湖南德力重工有限公司 一种用于挖掘机的铲斗及使用方法

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CN112695820B (zh) * 2020-12-08 2023-03-10 广州润方环保科技股份有限公司 一种挖掘破碎筛分混合一体化土壤修复装备

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DE3345299A1 (de) 1983-12-14 1985-06-27 Völk, Maschinenbau, 8910 Landsberg Frontlader-flachsilofraese
WO1994000644A1 (fr) * 1992-06-23 1994-01-06 Yrjoelae Mikko Appareil
WO2001014651A1 (fr) * 1999-08-19 2001-03-01 Tojo Maskin Ab Machine a travailler la terre avec fraise de surface
US7007877B1 (en) 1998-03-05 2006-03-07 Misu Pty Ltd. Screening apparatus
WO2007011316A2 (fr) * 2005-07-15 2007-01-25 Docar Milan Broyeur a couteaux
EP2236678A2 (fr) 2009-03-31 2010-10-06 Alessandro Foffani Godet pour le traitement de sol excavé, machine de chantier équipée du godet susmentionné, et méthode de traitement du sol excavé avec le godet susmentionné.

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FR2423263A1 (fr) 1978-04-17 1979-11-16 Sosson Guy Machine a broyer rotative a couteaux, notamment pour la recuperation des metaux tenaces
DE3345299A1 (de) 1983-12-14 1985-06-27 Völk, Maschinenbau, 8910 Landsberg Frontlader-flachsilofraese
WO1994000644A1 (fr) * 1992-06-23 1994-01-06 Yrjoelae Mikko Appareil
US7007877B1 (en) 1998-03-05 2006-03-07 Misu Pty Ltd. Screening apparatus
WO2001014651A1 (fr) * 1999-08-19 2001-03-01 Tojo Maskin Ab Machine a travailler la terre avec fraise de surface
WO2007011316A2 (fr) * 2005-07-15 2007-01-25 Docar Milan Broyeur a couteaux
EP2236678A2 (fr) 2009-03-31 2010-10-06 Alessandro Foffani Godet pour le traitement de sol excavé, machine de chantier équipée du godet susmentionné, et méthode de traitement du sol excavé avec le godet susmentionné.

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GB2554888A (en) * 2016-10-12 2018-04-18 Crushers 4 Sale Ltd Impact Crusher Assembly
CN106914327A (zh) * 2017-03-23 2017-07-04 成都万家健康管理股份有限公司 一种基于碎纸机的碎纸设备
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CN107511232B (zh) * 2017-08-25 2018-07-17 广东众恒科技有限公司 一种机器人
CN107511232A (zh) * 2017-08-25 2017-12-26 宣城尤达美智能科技有限公司 一种机器人
JP2019183595A (ja) * 2018-04-03 2019-10-24 ウエダ産業株式会社 バケット装置
KR102082964B1 (ko) * 2019-01-09 2020-02-28 주식회사 자우버 파쇄날 간의 교합이 긴밀하게 이루어지는 파쇄장치
CN110665580A (zh) * 2019-11-28 2020-01-10 缙云台杏电子科技有限公司 一种不同颗粒大小的磨料形成分筛一体化设备
CN110665580B (zh) * 2019-11-28 2021-04-02 山东新亚新磨具有限公司 一种不同颗粒大小的磨料形成分筛一体化设备
CN112252396A (zh) * 2020-10-21 2021-01-22 湖南德力重工有限公司 一种用于挖掘机的铲斗及使用方法

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ITUD20100220A1 (it) 2012-05-30
IT1402808B1 (it) 2013-09-18

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