EP0327573A1 - Dispositif pour installations de broyage - Google Patents

Dispositif pour installations de broyage

Info

Publication number
EP0327573A1
EP0327573A1 EP87907240A EP87907240A EP0327573A1 EP 0327573 A1 EP0327573 A1 EP 0327573A1 EP 87907240 A EP87907240 A EP 87907240A EP 87907240 A EP87907240 A EP 87907240A EP 0327573 A1 EP0327573 A1 EP 0327573A1
Authority
EP
European Patent Office
Prior art keywords
arms
jib
crushing
accordance
jointed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP87907240A
Other languages
German (de)
English (en)
Inventor
Veikko Yrjo Johannes Impola
Markku Tapani Korhonen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FI864393A external-priority patent/FI864393A0/fi
Application filed by Individual filed Critical Individual
Publication of EP0327573A1 publication Critical patent/EP0327573A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/08—Wrecking of buildings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/08—Wrecking of buildings
    • E04G23/082—Wrecking of buildings using shears, breakers, jaws and the like
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/08—Wrecking of buildings
    • E04G2023/086—Wrecking of buildings of tanks, reservoirs or the like

Definitions

  • the object of the invention is a device for crushing structures, which consists of crushing pincers, in which there are two arms with jaws, jointed to an intermediate member, and a hydraulic cylinder operating the arms to press the jaws together, an articulated jib for moving the crushing jaws to the place of operation, which jib consists of a support leg jointed to swivel around the vertical axis of the base and at least two sequentially jointed jib sections attached to this, and at the end of which a pincer positioning device connected to the intermediate member is attached, and which device includes a hydraulic system for operating " the pincers, the positioning device, and for the jib.
  • Diamond sawing is also noisy and dusty. In.addition the water required for cooling the blade makes a mess indoors. The blade costs of the method are high and the power requirement is great so that there is a problem of obtaining sufficient electrical power in old and small buildings.
  • a common feature of the devices presented is that they demand a heavy base vehicle. Concrete crushing typically requires a force of 50 - 100 tn (500- 1000kN) independent of the size of the jaws. In addi ⁇ tion a practical distance between the jaws is always at least 20 cm so that the pincers cannot be made smaller and lighte without limit. Except in the device shown in the DE publication 3,342,305 the pincer is not free to take a position directly opposed to the compressive counter-force so that immense forces are -transmitted to the jib structure. Because of this large base vehicles with heavy jibs are required. For example in a device in accordance with US publication 4,196,862 the pins carrying the pincer section are subject to a large torque loading.
  • the basic idea of the invention is that in order to achieve a really practical and light device what is required is both a versatile positioning mechanism to turn the pincers to the required working position and synchronization devices for the arms. Without syn ⁇ chronization the arms will slip to an angle, which makes crushing impos ⁇ sible. The synchronization of the arms makes their movements stable and prevents sudden slipping. It is also essential that the operating system, which is generally hydraulic, allows the pincers to move into a position in accordance with the counter-force.
  • the invention makes possible a j i? crusher attached to a jib, in which the ratio of the compressive force to the weight of the device is 200:1, that' is e.g. 42tn:0,21tn.
  • Patent Claims 2 and 3 show two advantageous adaptions, in which the positioning mechanism is made short and small.
  • the hydraulics of the former can be made much more effective by the means presented in Claims 6 and 7, when a high-pressure oil feed is provided by means of short hoses and a pressure booster by-pass allows the speed of the movement of the jaws to be increased.
  • the joint support that turns to the side in accordance with Patent Claim 4 is extremely important when working in narrow passages. With the aid of this device it is possible to work in a passage that is about as wide as the positioning mechanism is long.
  • the mini ⁇ mum width is the everall length of the jib and positioning mechanism. It is not even easy to notice the problem of working in a narrow passage, because in practice the jib is first straightened in the direction of the passage, in which case the apparatus as such will fit into the passage, but working. ,with it is then extremely difficult. With the aid of the joint supprt it is not necessary to discard the main principle of the device even in difficult conditions when the task of the positioning me ⁇ chanism is only to turn the pincer to the required position, and the task of the jib is only to move the pincers over a larger working area.
  • FIG. 1 shows a general picture of the crushing device
  • Figure 2 shows the positioning device in detail
  • Figure 3 shows the attachment of the pincers to the positioning device
  • Figure 4 shows the synchronization between the arms of the jaws
  • Figure 5 shows the positioning device turned to the side
  • Figure 6 shows the use of the crushing device in connection with a vehicle
  • Figure 7 shows a positioning device equipped with a pressure booster
  • Figure 8 shows the hydraulics diagram of the pressure booster
  • Figure 9 shows another positioning device model
  • the crushing device in Figure 1 has a total weight of 300 kg, of which the weight of the pincers is about 100 kg. At a maximum pressure of 73MPa the greatest force of the crushing cylinder is 570 kN (57tonnes). As a result of the quick-connectors the device can be rapidly dismantled into three parts, when it can be carried by manpower into tight or difficult places.
  • the basic components of the crushing device are the pincers, the posi ⁇ tioning device 8 that carries them, the jib 10, and the base 12. Indoors the base 12 can be supported with the vertical support 23., in which case the support area can be reduced to a minimum. In particular the leg on the opposite side to the vertical support 23 can be removed almost en ⁇ tirely.
  • the jib 10 is supported from the base 12 by means of the jointed turning support leg 11 and it consists of two sequentially jointed jib sections 15 and 16. The jib 10 is turned by hand, but the movement of the jib sections 15 and 16 takes place by means of hydraulic cylinders 17 and 18.
  • the positioning mechanism 8 is attached to the jib section 16 by means of the joint support 9, which consists of the joints 20 and 19. By means of those the positioning mechanism 8 can by turned in order both downwards and to the side. Both joints 20 and 19 are locked in the desired position by means of components 21 and 22.
  • Figure 1 does not show the hydraulic hoses which, are advantageously threaded to run down the inside of the jib. The equipment naturally includes control and power devices for the opera ⁇ tion of the various hydraulic devices.
  • the positioning mechanism 8 consists of a hydraulic motor 13 and a support arm 2 turned by it and the first turning device 14-
  • the pincers are formed by two arms 2 with jaws 3, jointed to an intermediate member 6.
  • At the ' other end of the arms is a powerful cylinder 5 for their opera ⁇ tion.
  • the hydraulic motor 13 turns in a full circle without limit, because the dead area of a motor that is limited in turning always demands now and then that the entire device be moved from its location to another place.
  • the positioning mechanism is turned to the side.
  • the first turning device is seen in detail. It is formed of a jointed pair of arms 26 operated by cylinder 25- One of them is jointed to support arm 24 and the other to a pin welded to the intermediate member 6. This arrangement achieves a turning area of 120°.
  • the pressure oil feed of both cylinders after the hydraulic motor 13, the power cylinder 5 belonging to the pincers, and cylinder 25 of the first turning device 14 takes place through the axle of motor 13 using a technique that is in itself known.
  • the crushing jaw 3, which is made to be quickly changed, has been removed from one of the arms 2 in Figure 3 «
  • FIG 6 shows another of the advantageous forms of application of the invention, in which the positioning device with the pincers in accordance with Figure 7 is placed on a hydraulic trolley weighing 1200kg (BROKK 80 - Atlas Copco TM) .
  • BROKK 80 - Atlas Copco TM hydraulic trolley weighing 1200kg
  • This is equipped with a three-part jib and in particu ⁇ lar is further equipped with a side-turning joint by which the positioning mechanism ⁇ 8 is attached to it.
  • Positioning mechnanism 8 with its pincers can, by means of simple arrangements, be connected to multifarious self-propelled implements, which are equipped with jibs. Machines of this kind are, among others, excavating machines and percussion hammer machines.
  • the jib can be made sturdy and a pressure booster can be installed in connection with the positioning mechanism in accordance with Figure 7. Even then the positioning mechanism need not necessarily weigh more than 300 kg, even though the gap between the jaws is 50 cm and the maximum power of the large hydraulic cylinder is 100 tn (lOOOkN).
  • the pressure booster may be of some known type, for example a device in
  • the exchange valve 30, Figure 8 always belongs with the pressure booster 29. When this is located on the support arm after the rotor 13, the oil fed through the axle of rotor 13 need be at only normal working pressure (c. l ⁇ Obar). Only a short length of high-pressure oil line (700...1500ba is required from the pressure booster 29 to the compression-side connec- tion 27 of cylinder 5 «
  • pressure booster 29 In order to make transfer movements easier before compression cylinder 5's feed bypasses pressure booster 29- This takes place by means of pres ⁇ sure limit valve 32, which begins to feed pressure booster 29 through the pressure and quantity adjustment valve 31 only after the pressure has risen to nearly the nominal working pressure, i.e. c. 150 bar. Because of the pressure and quantity adjustment valve 31 the device can be connected to base machines working at different pressures, because the operation of pressure booster 29 is thus stabilized.
  • the return oil from pressure booster 29 must be led through the counter valve 35 to the return side 28 line.
  • the opening movement is carried out by directing the pressure oil feed to the return side 28 line by means of the electrically controlled direction valve 34, when the pressure con ⁇ trolled countervalve 33 opens and allows the return oil out of the com ⁇ pression side.
  • pump 36 can be ready in the base vehicle and all normal excess pressure limiting devices belong with it. Normal protection devices also beolong with the circuits of the other hydraulic devices.
  • the cylinders are protected in a known manner against external forces by pressure limit valves. In practice these thus achieve the free positioning of the pincers in accordance with the com ⁇ pressive counter-forces.
  • a crushing device in accordance with the invention can be realized in many different ways within the framework of the idea of the invention.
  • the two turning devices of the positioning mechanism can be realized in numerous different ways.
  • Figure 9 still one more type is shown.
  • the arms of the pincers are not shown. They should be attached with the aid of joint axles 7 to the intermediate member 6.
  • the positioning device of Figure 9 is attached to a side-turning joint support at the end of. the jib.
  • the support arm 37 is carried by the fork support 38 of joint 44, in which there is the support bearing 39 of the axle carrying the intermediate member 6.
  • the hydraulic motor 40 that turns the intermediate member is also attached to the fork support 38.
  • the turning of the fork support 38 itself is carried out by means of hydraulic cylinder 43, which uses the pair of arms 41 and 42 that are jointed to it.
  • Motor 40 can be permanently attached to the support arm 37, if it is connected to intermediate member 6 with the aid of a uni ⁇ versal joint or similar.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Crushing And Grinding (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Disintegrating Or Milling (AREA)

Abstract

Un dispositif pour installations de broyage, qui est composé de pinces de broyage (1), comprend deux bras (2) pourvus de mâchoires (3) articulées autour d'un élément intermédiaire (6) et un vérin hydraulique (5) servant à actionner les bras (2) afin de presser les mâchoires (3) l'une contre l'autre, une flèche articulée (10) servant à amener les pinces de broyage (1) jusuq'au lieu de travail et comportant un jambage de support (11) articulé autour de l'axe vertical de la base (12) et au moins deux sections de flèche articulées de façon séquentielle (15, 16), l'une étant articulée autour dudit jambage et l'autre servant de connexion au niveau de son extrémité entre le mécanisme (8) de positionnement des pinces (1) et l'élément intermédiaire (6). Ledit dispositif comprend en outre un système d'actionnement hydraulique destiné aux dispositifs d'actionnement des pinces (1), du mécanisme de positionnemnt (8) et de la flèche (10). Le but de la présente invention est d'essayer de créer un dispositif de broyage à pinces léger, efficace et simple, qui peut également être utilisé dans des espaces limités dans des endroits fermés. Selon la présente invention, le dispositif de positionnement (8) des pinces (1) comporte deux dispositifs pivotants reliés ou articulés de façon sequentielle (13, 14) destinés à faire tourner les pinces de broyage (1) autour de deux axes spatiaux. Les bras (2) comportent des dents (4) destinées à s'engager les unes dans les autres ou d'autres dispositifs de synchronisation, servant à maintenir les angles des bras égaux par rapport à l'élément intermédiaire (6), le système d'actionnement permettant aux mâchoires (2) des pinces (1) d'occuper une position en se déplaçant de façon sensiblement libre depuis une position angulaire directement vers une position de compression.
EP87907240A 1986-10-29 1987-10-28 Dispositif pour installations de broyage Withdrawn EP0327573A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FI864393 1986-10-29
FI864393A FI864393A0 (fi) 1986-10-29 1986-10-29 Anordning foer krossande av konstruktioner.
FI872060 1987-05-11
FI872060A FI872060A7 (fi) 1986-10-29 1987-05-11 Laite rakenteiden murskaamiseksi.

Publications (1)

Publication Number Publication Date
EP0327573A1 true EP0327573A1 (fr) 1989-08-16

Family

ID=26158025

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87907240A Withdrawn EP0327573A1 (fr) 1986-10-29 1987-10-28 Dispositif pour installations de broyage

Country Status (5)

Country Link
EP (1) EP0327573A1 (fr)
JP (1) JPH02500295A (fr)
AU (1) AU8174387A (fr)
FI (1) FI872060A7 (fr)
WO (1) WO1988003213A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2632999A1 (fr) * 1988-06-15 1989-12-22 Zepf Hans Rudolf Pince de rupture pour demolir des ouvrages de maconnerie en particulier des murs en beton arme
DE8904094U1 (de) * 1989-04-04 1990-05-10 Wack, Helmut, 6653 Blieskastel Betonbeisser
NL8901542A (nl) * 1989-06-20 1991-01-16 Verachtert Beheer Bv Inrichting voor het stukmaken van uit beton of dergelijk materiaal bestaande voorwerpen.
DE4013126A1 (de) * 1990-04-25 1991-10-31 Helmut Wack Abbruchgeraet
DE4036705A1 (de) * 1990-11-17 1991-10-31 Krupp Maschinentechnik Verfahren zur unterstuetzung der zerkleinerungswirkung von abbruchwerkzeugen und zur durchfuehrung des verfahrens geeignetes abbruchwerkzeug
ES1026347Y (es) * 1993-11-19 1994-10-01 Urbar Ingenieros S A Dispositivo de adaptacion de vibradores de cemento a maquina portadora.
SE513636C2 (sv) * 1998-09-18 2000-10-16 Casun Ab Bygg Och Industriserv Anordning för håltagning och/eller demolering i betong eller liknande
CN119951607A (zh) * 2025-04-09 2025-05-09 闽南理工学院 一种土木工程建筑废料处理装置及其工作方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2310098A1 (de) * 1973-03-01 1974-09-19 Kotthaus Dako Werkzeug Zangenartiges handwerkzeug, insbesondere bolzenschneider
US4196862A (en) * 1978-09-06 1980-04-08 Ituo Tagawa Apparatus for crushing building materials
JPS6062373A (ja) * 1983-09-16 1985-04-10 重水　昭彦 コンクリ−ト破砕機

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8803213A1 *

Also Published As

Publication number Publication date
FI872060L (fi) 1988-04-30
WO1988003213A1 (fr) 1988-05-05
AU8174387A (en) 1988-05-25
FI872060A7 (fi) 1988-04-30
FI872060A0 (fi) 1987-05-11
JPH02500295A (ja) 1990-02-01

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