FI81409C - FOERFARANDE OCH SLUNGA FOER FOERFLYTTNING AV MATERIAL GENOM KASTNING. - Google Patents

Description

81 409

Method and centrifuge for transferring material by throwing

The invention relates to a centrifuge formed of a plurality of centrifugal units with a rotating blowpipe, each unit comprising a rotor with two or more 5 blades, a motor for rotating it, a rotor housing open at at least one circumferential point, and having a rotor blade cutting angle ° to 90 °.

There are several previously known centrifugal solutions and in particular rotor solutions. The goals are e.g. simple construction, good efficiency, durability and large working width 10 as well as a good work finish. In practice, considerable trade-offs have to be made between the various objectives. A large working width is achieved in known centrifuges, typically by using different collecting members before the rotor. This degrades efficiency. The weakness of known centrifuges in particular is their poor durability when faced with an obstacle or a hard body. Such can be rocks and even boulders.

The object of the present invention is to provide a new type of centrifuge rotor structure which is light and yet so durable that it is directly suitable for the transfer of solid material and heavy icy snow as well as the ice channel. In addition, good efficiency and a good after work are sought. Furthermore, the invention aims at a large working width, while maintaining good efficiency and versatile usability. The main features of the invention are set out in claim 1. The centrifugal solution according to claim 2 improves the work pattern.

The invention will now be illustrated by reference to the accompanying drawings, which show some embodiments of the invention.

2 5 Figure 1 shows the assembly of the centrifugal unit in an exploded view

Figure 2 shows a centrifuge formed of three staggered and overlapping centrifugal units Figure 3 shows a front view of the centrifuge of Figure 2

The main parts of the centrifuge are the rotor 2, the hydraulic motor 3, the housing 4, the jaw guard 6 and the frame 3 0 5. The motor 3 is attached to the frame 5, on which the housing 4 is supported by a pivoting blower. Connection of the rotor 2 to the motor 3 by means of a break bolt 12 which protects the machine in the event of the rotor 2 jamming. In practice, however, the situation has been found to be rare. A sleeve 10 is connected to the shaft of the motor 3, to which a torsion lug 11 is further connected. This is connected by means of a breaking bolt 12 to the corresponding ear of the rotor 2 2 81409. The thigh guard 6 is fixedly attached to the frame 5. The centrifuge is attached with two pins from the attachment part 13 of the frame 5 to the side boom of the tractor.

The blades 1 of the rotor 2 are housing structures consisting of three plates 7,8. The cross-section of the housing structure is triangular and shrinks into two adjacent 5 lines in the walker as the plates 7 are completely joined at the tip. From root to tip on the outer edge of the rotor 2 there is a plate strip 8 between the edges of the plates 7 and the distance between the plates 7 on the outer edge tapers towards the tip. In the walker, however, the plate strip 8 extends over the front plate 7, whereby it forms a cutting blade 9 at the tip of the wing 1. It is essential that the housing-shaped wing 1 is shaped in such a way that its cutting angle increases from 0 ° to 90 ° from the tip. This provides a preferred steady acceleration from zero to full throw speed. This steady one-time acceleration is the main reason for good efficiency.

If it is desired to increase the working width, two or more centrifugal units 15 are connected side by side. In order to cause the blow horns 14 to turn on both sides, the centrifugal units 15 are staggered as shown in FIG. In this case, snow does not accumulate on the adjacent unit to interfere with the throw. The centrifuge is attached to the three-point attachment of the tractor loader from the ribs 16. The transmission takes place by means of a chain drive 18 so that the two outer rotating central centrifugal units 15. The ribs 17 are also marked in Fig. 2 with the centrifugal attachment to the rear of the tractor. In this case, the transmission can also be arranged from the tractor. To further improve the workflow, the staggering is done with a little overlap. The blind 20 areas 19 remain small due to the overlap.

The staggering can be varied in several different ways. Mathematically, the three centrifugal units can be staggered in four different ways so that, viewed in the direction of travel, the adjacent units are not completely adjacent but are placed at different points in the direction of travel. The active working area of the staggered and overlapped centrifuge becomes large and the passive areas remain small. 25 In this case, little thrust is required to push the centrifuge into the snow. The transmission can take place either by means of a separate internal combustion engine or by transferring power from the implement hydraulically or mechanically.

The centrifuge according to the invention is suitable e.g. for special use where the centrifuge opens clogged road drums in the spring. This is accomplished by throwing an ice rod from one or both ends of the drum 30 with a centrifuge, releasing the ends of the drum.

Claims (2)

3 81 409 1. In the form of a rotor (14) with a sheave (15), a shield with a rotor (2), with a rotor (20) or a motor (20) that rotorhus (4), som öppet ätminstone pä ett sialle av cirkeln och där skjutvinkeln pä rotorns vingar är warmad att tillväxa börjande frän specialen väsentligen frän 0 ° account 90 °, kännetecknad därav att varje slungenhet är placerje pä sinen egen eg ligand västentligen en enhets slungningsbredd frän varandra, men pä olika ställen i körriktning pä sä sätt att de intilliggande slungenheter (15) inte är i vägen för 2 5 varandra vid vändning av bläsrör (14) och snön samlas inte i kastrikUiing pä de under-ligg Konstruktioner. A centrifuge formed by a plurality of centrifugal units (15) with a rotatable blowpipe (14), each unit comprising a rotor (2) with two or more vanes (1), a motor (3) for rotating it, a rotor housing (4) having at least open at one circumferential point, and in which the angle of intersection of the rotor blades (1) is adapted to increase substantially from 0 ° to 90 ° from the tip, characterized in that the centrifugal units (15) are each arranged on their own line of travel substantially spaced apart by one unit , but in different directions in the direction of travel so that the adjacent centrifugal units (15) are not in the way of each other when the horn (14) is turned, and no snow accumulates in the throwing direction on the structures below. Centrifuge according to Claim 1, characterized in that the centrifugal units (15) are at the same time interleaved in such a way that the working areas partially overlap. 15 2. Slunga enligt patentkravet 1, kännetecknad därav att slungenheter-na är päma samma Gäng multiplexerade päsä sätt att arbetsomräden ligger delvis head varandra.