DE1984410U - ROLLER CRUSHER. - Google Patents

Description

! A. 094870 * 16.2.

Usage sample registration Gw * 180! $

■ "—- * ■ '' i '' 9.2.1968

Ll / pc

of the 3company

Ironworks union We st fall a, 4-628 Wethmar near Lünea

Roll crusher

You invention is based on a roll crusher whose between the crushing gap formed by the crushing rollers can be adjusted in an elastically flexible manner by means of at least one hydraulic pressure unit.

In a known roller crusher, the crushing rollers are acted upon by means of hydraulic pressure units as adjusting elements, with A complex hydraulic system ensures that the wear on the roll surfaces is constant Crusher pressure is compensated "

Further isVes known from a cone crusher, when one penetrates hard foreign body in the breech gap this break gap © lastisch to expand resiliently »so that the foreign body through the crushing gap can get. The elastic resilience is achieved here by means of peder elements or hydraulic pressure pistons.

In roll crushers for crushing minerals such as coal or ore or the like. It is common in practice to open the gap to change between the crushing rollers by the fact that the bearings receiving the crushing roller axles are displaceable in sliding guides leads and means for locking these bearings in different Provides positions.

If, as is often the case in practice, larger chunks of harder material get into the crushing area of the roller crusher, they are either rejected by the crushing rollers under extreme stress on the crushing rollers or, under deformation of the crushing rollers, if the drive force is sufficient, pressed through the crushing gap. This is particularly the case when extracting a relatively soft material, such as coal, if a crusher set to crush this soft material with a corresponding crushing gap is supplied with harder material, such as rock inclusions resulting from faults. This disruptive material, which is not suitable for the Breohing process, can have increased edge lengths. Pie usual in practice known ¹ roll crusher are not suitable to inject such not suitable for the crushing process Good through the crusher, or without damaging the roll crusher, the continuous Breohvorgang, d, h. to hinder the even passage of the crushed material. If the known crusher has an ::. Have devices that allow a controlled yielding of the crushing rollers, these devices are aufwei & ge and failure-prone hydraulic control devices.

The object of the invention is therefore to provide a roll crusher whose? The crushing gap is elastically flexible adjustable by means of at least one hydraulic pressure unit, to be designed in such a way that an elastic yielding of the rollers is guaranteed with little complex and structurally simple means when passing through unbreakable pieces, while at the same time ensuring that the rollers after this passage Do not suddenly knock unbreakable goods together and thus be damaged. The use of complicated hydraulic control devices should be avoided here,

The invention solves the problem in that the hydraulic A pneumatic accumulator is assigned to the pressure unit, and an energy device between the pressure unit and the accumulator (DrosseV * and check valve) is provided, which allows a quick Adjustment of the rollers in the sense of an enlargement of the crushing gap

and causes a slow adjustment of the rollers in the sense of a reduction in the crushing gap.

According to the invention, when a non-breakable object passes through, the crushing rollers yield to a considerable extent against the resistance of a pressure accumulator, which can, for example, be preloaded with 150 atmospheric nitrogen . In practice , it is advantageous to choose a possible change in the crushing gap from about 20 to 600 mm. Here, according to the invention, the roller frame or frames with their associated drives pivot out about an axis mounted vertically on the underside in a base frame and on the top in a strut *

If it appears expedient for the local conditions to only allow one of the two or both roller frames to pivot outward to a limited extent, the pivoting range can advantageously be limited by means of preferably pin plug connections.

Since it is advantageous if the crushing gap expanded during the passage unbreakable Ge winnungsgutes not suddenly closes again to report damage to the crushing rollers, according to the invention, the pressure is released from the elastic memory to the cylinder or cylinders via a throttle. If, for example, repairs are to be made to the conveyor or the like placed in the base frame, the rollers can be switched according to a further feature of the invention in such a way that the rollers yield non- elastic, that is, the mining material passing through opens the crushing gap but does not closes again or an additional pump can be used to pressurize the cylinders so that the largest possible gap width is achieved by fully opening the roll crusher «

According to a further feature of the invention, the hydraulic cylinder or cylinders are supported on the one hand by a bracket on the roller frame and on the other hand on the base frame · The cylinder therefore acts in a completely horizontal plane for the pivoting process'

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so that the roller frame is not released from the frame.

Attracted literature

3 208 678
, DAS 1 216 0? 4

-.OiWiIVAViVf ι n

The invention is carried out in the embodiment shown below * example explained in more detail

Jig »1 shows a partially sectioned view of a # reel * crusher j

yig, 2 shows the top view of the roll crusher according to Pig. 1y

Hg * 3 shows another view of the roll crusher Fig. 1j

Figure "4 1 shows a plan view of the roll crusher according to Fig. Aufgefahrenem in state \

Fig. 5 shows the guidance between the base and the roller frame in enlarged scale j

Fig. 6 shows a possible circuit diagram.

The roll crusher consists essentially of the crushing rolls with the roller axles 3 »the drives 6, the base frame -4 and the roller frame 7 * Between the base frame 4 and the roller frame 7 is a hydraulic cylinder 1, which acts on an elastic accumulator 2, switched on * The hydraulic © Zy · _ linder supports itself in the quotation game shown one end directly to the base frame 4 and with his at the other end via a separate block 13 (see Fig. 5) on the value frame 7. The gift of the roller frame 7 with the associated drives 6 takes place around a vertical, on the one hand in the base frame 4 and on the other hand in a strut 9 axle 10.

According to the example circuit diagram (Fig. 6), the cylinder

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the 1 retracted when the roll crusher is opened, ie when the crushing gap is enlarged (see FIG. 4). In the illustrated Sehaltstellung 8, the liquid from the cylinder chambers 14 via the lines 15 ', "pressed 15 15 into the elastic memory. 2 As soon as the pressure on the cylinder ¹ 1 subsides, the pressure fluid flows via the line 16, 16% Throttle 11, the lines 15 'and 15 back into the seam 14.

In the switching position 8, the crushing rollers can therefore not Dodge breakable conveyed goods.

In the switching position 12 there is a non-elastic yield folding enables, i.e. the crusher opens automatically without it to close again.

Claims (3)

Gw. 1ί 9.2.1 «S c h u t ζ a η s ρ r ii ο Ια © 1. Roller crusher, whose breech gap formed between the crushing rollers can be adjusted in an elastically flexible manner by means of at least one hydraulic pressure unit, as identified by ¹ ι shows that the hydraulic pressure unit is assigned a pneumatic memory and between the pressure unit and the memory a fusing device (throttle 11, check valve) is provided, which allows a quick adjustment of the rollers in the sense of an increase in the crushing gap and a slow adjustment of the rollers in the sense of a reduction in size of the crushing gap causes. 2 «roll crusher according to claim 1, characterized in that g e k e η η ζ e i c ha et that the roller frame or frames (7) with their associated drives (6) around a vertical, underside in A base frame (4) and an axis (10) mounted on the upper side in a strut (9) can be pivoted, 3. Roll crusher according to claim 1 and 2, characterized g e k e η η ζ e i c h η et that the Schwenkberech one or both Crushing roller *! (5) is limited by preferably bolt connectors t t ± _t roll crusher according to claim 1 and / or one or more of the preceding, ge ke η η ζ e lehne t by a Schaltst9iLiuag (12), which enables a non-elastic yielding of the rollers. 5 · Roll crusher according to claim 1 and / or one or more of previous, d a d u r © h g e k e η η ζ e 1 c h η e t, that the one or more hydraulic cylinder (1) on the one hand a bracket (13) on the roller frame (7) and on the other hand on the base frame (4) support. Oiest Unierjoge (Sesihreiouni? UnC Sehufronsoi.) Is! Jie iulefü «ino.« R «iehr« Di v «fch» / on <iv Werr fossur _lf w u-sprün? Iich «inqereicmen Unterioijen so. oils reentbche 8edeurun9 * «' Ah« i _C hui ^. -Iv nitki .jeprö «Di» unprCinglier · βιηοβ-βιρ, ιιβη unteriooer. bermoen iicn ti, <sar AmrsoMen. Si «: <* ηι» ί .. ₍ · οβ. · Ίβι ' Arm Hochwel »sine reoMiishei. Imajetses ^ eoönrenfr«! Nngtnnt, «oroot. On the«? * Earth »n oie-vo»> u _M | Ofo >op; s * oar film n «» iA ui β «, ΟοΙιοΛ«, Man o »iis1m Oeursehes