SE202103C1

SE202103C1 -

Info

Publication number: SE202103C1
Authority: SE
Publication date: 1965-01-01

Description

Uppfinnare: G Allimonn Prioritet beglird frdrz den 27 september 1958 (Prankrike) Foreliggande uppfinning hanfor sig till ett brytningsredskap for maskiner, som anvandas i gravor, stenbrott och far grundlaggningsarbeten. Detta redskap omfattar minst en roterande skiva, som vid periferien har skiir och lutar sâ i forhallan.de till maskinens langdaxel, att skaren i tar och ordning kunna traffa det material, som skall brytas los, och sedan omedelbart avlagsna sig frail detsamma. Inventor: G Allimonn Priority Beglird 27 September 1958 (France) The present invention relates to a mining tool used in mines, quarries and foundations. This tool comprises at least one rotating disc, which at the periphery has skis and is inclined in the relation to the long axis of the machine, so that the cutter can in turn hit the material to be broken loose, and then immediately detach itself from it.

Redskapet enligt uppfinningen kannetecknas av kombinationen av for skar bestaende av i och for sig lancla hamrar, som ara fasta svangbart i var sin urtagning i plattan, vilka urtagningar ha radiella sidovaggar och I vilka I vilolage aro helt indragna och elastiska tryckmedel, vilkas verkan adderas till centrifugalkraften, fOr varje hammare vid urtagningarnas bakre, radiella sidovagg, medan deras framre, radiella sidovigg bildar ett an-slag far hamrarna. The tool according to the invention can be characterized by the combination of forks consisting of per se lance hammers, which are fixedly pivotable in each recess in the plate, which recesses have radial side cradles and in which at rest are fully retracted and elastic pressure means, the effect of which is added to centrifugal force, for each hammer at the rear radial sidewall of the recesses, while their front radial sidewall forms a stop for the hammers.

Uppfinningen kammer i det foljande att beskrivas narmare med hanvisning till bifogade ritningar, vilka som exempel visa tva utfOringsformer. Fig. 1 och 2 aro planvyer av var sin utforingsform. The invention will now be described in more detail with reference to the accompanying drawings, which show by way of example two embodiments. Figs. 1 and 2 are plan views of each embodiment.

Brytningsredskapet enligt uppfinningen be-star av en. roterbar platta 1, som är avsedd att monteras sa pa en brytningsmaskin, att den bildar en vinkel med brytningsfronten. Med denna placering av plattan blir det mojligt for var och en av hamrarna 2 pa plattan att i tur och ordning sla mot det material, som skall brytas loss, °eh sedan omedelbart dragas undan, sa att man far samma verkan som da en gruvarbetare bryter med en hacka. The mining tool according to the invention consists of a. rotatable plate 1, which is intended to be mounted on a refractory machine so as to form an angle with the refractive front. With this placement of the plate, it becomes possible for each of the hammers 2 on the plate to strike in turn against the material to be broken loose, and then immediately pulled away, so that one has the same effect as when a miner breaks with a hoe.

Plattans sitar 2 aro svangbara pa tappar 3, som aro fast fOrbundna med plattan och sla Dupl. kl. 5 b: 27/ mot materialet under inverkan av centrifugalkraften. The plate seats 2 are pivotable on pins 3, which are firmly connected to the plate and hit Dupl. at 5 b: 27 / against the material under the influence of the centrifugal force.

Varje hammare 2 svanger i en urtagning 1 I plattans yta med radiella sidor 6 och 7, som begransa hammarens svangning. Plattans pro-Iii är utformad sa, atthammarens arbetsdel 5 kan trada ut optimalt utanfor plattans periferi och kan understadjas effektivt. Each hammer 2 pivots in a recess 1 in the surface of the plate with radial sides 6 and 7, which define the pivot of the hammer. The pro-Iii of the plate is designed so that the working part 5 of the hammer can extend optimally outside the periphery of the plate and can be supported efficiently.

Enligt- de bagge visade utforingsformerna har plattan tre hamrar och Ire utsprang A2 och As. Eftersom tapparna 3 aro placerade framf Or linjer, som fOrbinda plattans centrum 0 med namnda punkter Al, A2 och A3, sett i plattans med pilen f visade rotationsriktning, kunna hamrarna inta ett helt indraget lage bakom dessa linjer. Pa andra sidan om dessa linjer skjuter hamrarnas arbetsdel 5 ut utanfor plattans amkrets och kan sâlunda verka mot det material, som skall losbrytas. According to the ram embodiments shown, the plate has three hammers and Ire protrudes A2 and As. Since the pins 3 are located in front of lines which connect the center 0 of the plate with said points A1, A2 and A3, seen in the direction of rotation of the plate shown by the arrow f, the hammers can assume a fully retracted bearing behind these lines. On the other side of these lines, the working part 5 of the hammers protrudes outside the circumference of the plate and can thus act against the material to be broken loose.

Alltefter materialets art och hardhet kan man Andra hamrarnas anslagsenergi mot materialet genom anvandning av hamrar med olika langd och vikt och anpassning av plat-tans varvtal pa lampligt satt. Depending on the nature and hardness of the material, the impact energy of the Second Hammers can be applied to the material by using hammers of different lengths and weights and adjusting the plate speed in an appropriate manner.

Delta brytningsredskap enligt uppfinningen är for sett med ett elastiskt medel, som understOdjer centrifugalkraftens verkan eller helt ersatter densamma vid last varvtal. Delta refractory tools according to the invention are provided with an elastic agent which supports the action of the centrifugal force or completely replaces it at load speed.

Enligt fig. 1 utgOres det elas Eska medlet av en fjader 8, som endast är fast i sidan 6 till urtagningen 4 och mot vilken ett anslag 2a pa den svangbara hammaren 2 kan stodja. According to Fig. 1, the electrical means is constituted by a spring 8, which is fixed only in the side 6 of the recess 4 and against which a stop 2a on the pivotable hammer 2 can stand.

Enligt fig. 2 utgiires det elastiska medlet av en tryckluftcylinder 9. Hammaren 2 ligger an mat cylinderns kolystang 9a medelst ett anslag 2a. According to Fig. 2, the elastic means is discharged from a compressed air cylinder 9. The hammer 2 abuts the cylinder rod 9a of the cylinder by means of a stop 2a.

I sitt normala vilolage trycka hamrarna 2 ihop fjadrarna 8 eller pressa in kolvstangerna. In its normal resting position, the hammers 2 compress the springs 8 or press in the piston rods.

Da plattan 1 roterar, adderas fjkdrarnas 8 och cylindrarnas 9 verkan till centrifugalkraften, sa att hamrarna 2 lattare svangas ut av centrifugalkraften. Hamrarnas arbetsdelar 5 slungas salunda hastigt mot det material, som skall bearbetas. As the plate 1 rotates, the action of the springs 8 and the cylinders 9 is added to the centrifugal force, so that the hammers 2 are more easily pivoted out by the centrifugal force. The working parts 5 of the hammers are thus quickly thrown against the material to be machined.

Genom att hamrarna 2 aro monterade pa en roterande platta 1, som lutar i forhallande till maskinens langdaxel, blir det mojligt for dem att i tur och ordning sla mot det ma-, terial som skall bearbetas °eh sedan omedelhart drages in. Harigenom minskas nOtningen av hamrarna 2. Fjadrarna 8 och cylindrarna 9 paskynda och fOrstarka denna slagverkan. Ju snabbare denna är, desto mindre blir notningen. Because the hammers 2 are mounted on a rotating plate 1, which is inclined in relation to the long axis of the machine, it becomes possible for them to strike in turn against the material to be machined and then immediately hardened. This reduces the wear of the hammers 2. The springs 8 and the cylinders 9 accelerate and reinforce this percussion effect. The faster this is, the smaller the notch.

Vid indragningen sla hamrarna 2 ibland mot fjadrarna 8 eller kolvstangerna 9a och pressa in dem. Vid Rasta slag understodja fjadrarna och cylindrarna centrifugalkraftens utslungning av hamrarna 2 mot materialet. During retraction, the hammers 2 sometimes strike the springs 8 or the piston rods 9a and press them in. At Rasta blows, the springs and cylinders support the centrifugal force's ejection of the hammers 2 against the material.

Claims

Patent claim:

Mining tools for mining machines, intended for use in mines, quarries and the like, comprising a rotatable plate bearing at it pivotally mounted, such as hammers formed, arranged to be pivoted out of a recessed recess by a centrifugal force. projecting layer outside the periphery of the plate for machining the material to be broken loose, characterized in that the plate (1) is provided at its one side 5.r with recesses (1) intended for receiving the hammers (2) with preferably v5 substantially radially extending limiting surfaces (6, 7), the rear limiting surface (6) of each recess seen in the direction of rotation of the plate being arranged to support the respective resilient members (8, 9) of respective hammers, when this is in place or almost completely indented brine.

A tool according to claim 1, characterized in that the plate (1) has a greater extent in radial direction at the stalls thereof, which correspond to the retracted layer of flakes of the hammers, than at any other stall. Request publications: U.S. Patent Nos. 560,100; U.S. 708,217, 2,680,606, 2,879,038.