DE2710941A1 - ROPE REEL FOR ROPE SYSTEMS - Google Patents

Description

Patent holder: Lorünser Leichtmetallwerk KG.

Schlins (Vorarlberg)

Subject: Pulley for cableway systems

Registered on: Union priority: Austria (A) 1976 03 22 (claims 1-9)

Austria (A) 1976 03 22 (claims 10-12)

Publications that were considered to distinguish them from the state of the art :

OE-PS 276 475 OE-PS 313 364 OE-PS 325 354

HE 5033 9 / W34

709839/0812

The invention relates to a pulley -for ßeilwegeanlagen with an elastic lining ring, this lining ring being held between two flanges of the rope pulley and at least one of the flanges on a support whose radial distance from the axis of rotation of the pulley is equal to or is smaller than that of the chuck ring, pushed on to the side and secured against axial displacement by clamping bodies is, which lie in depressions of the support and protrude above and on the protruding or protruding Part of the clamping body the flange rests with its side facing away from the lining ring and the inner distance between the two Flanges in the assembled state of the rope pulley is smaller than the width of the undeformed lining ring.

There is a pulley known with an annular, resilient lining, which is supported by two radial flanges the running surface of the pulley is held. One of the flanges is designed as a ring, the inside diameter of which corresponds to the outside diameter corresponds to the tread and the other flange is integral with the tread. The tread carries in the Near its free edge a circumferential groove for receiving a spring washer. The flange designed as a ring points to Holder of the spring ring on its outside one to

709839/0812

its bore concentric recess for receiving the part of the spring ring protruding beyond the circumferential groove. Since the inner distance between the two flanges in the assembled state is smaller than the width of the originally deformed flexible Lining, the flanges are pressed apart by this lining. Pulleys of this type are re their basic construction is very simple. It can be on complex and expensive bolts and on the The disadvantages associated therewith are dispensed with and the lining ring or its elasticity which is present here in any case is sensibly used here as a constructive element, which allows the aforementioned simple structure. When assembling such With rope pulleys, the lining ring is first pulled onto the running surface, then the single flange is put on and the parts are then pressed together in a press until the circumferential groove of the running surface is released on all sides, in which then the spring ring can be inserted. The spring ring can only be inserted under the press that is under pressure and this must also be done manually. This requires additional protection of the press in order to avoid accidents.

Another known pulley consists of at least two parts that can be firmly connected to one another by screws,

709839/0812

before the hub, which has a li-shaped cross-section, form a pulley ring bearing a lining ring and discs or spokes bearing the pulley ring, wherein the bed of the pulley ring is formed by two conical surfaces enclosing an obtuse angle with one another is. In this pulley, one part of the pulley ring, the spokes supporting this part and the whole The hub is formed in one piece and the spokes of the other part point on the hub side at an angle to the axis of rotation of the roller inclined surfaces which bear against a corresponding inclined surface of the other part. Pulleys of this Art have proven their worth, as thanks to this construction the feed ring is easy to assemble or dismantle can be. This lining ring is subject to wear and tear and must therefore be exchanged and replaced periodically, for which reason it is important to ensure that this feed ring is easy to assemble, preferably without the aid of special tools. It is always important to ensure that the feed ring is in the pulley ring is firmly clamped in order to prevent the feed ring from moving relative to the pulley during operation, because such a relative movement would destroy the feed ring within a very short time.

709830/0612

In another known pulley, this aspect has also been taken into account. Here is the feed ring by the manufacturer already pulled onto an annular body that absorbs the radial tension, this hanging body with functional installation on the hub-adjacent wing that forms part of the pulley ring rests. Here, too, the rope pulley ring is designed with a U-shaped cross-section and the rope pulley itself designed in two parts, the parts forming the pulley being screwed together in this known pulley as well.

The connection of the individual parts forming the pulley by means of screw bolts arranged on the circumference was designed for Not considered expedient, because due to the high and changing load, it cannot be ruled out that a possibly Badly secured bolts could loosen and cause considerable damage. Can also be a bolt break. One therefore already went over to utilize the elasticity of the lining ring to the rope pulley ring to clamp forming parts together firmly, as has already been explained in detail above.

In such a known pulley, screws are no longer required to hold the pulley ring together forming parts, but a pulley of this type is only very

709839/0812

difficult to assemble because pulling on the feed ring requires two assembly steps, apart from the one The raised feed ring cannot be removed at all without being destroyed.

The invention is based on the knowledge that the rope pulley described above for the reasons given has an advantageous structural design, but that they are improved in terms of mounting options should, primarily from the point of view that the interaction the individual parts forming the fixed connection in the finished rope pulley takes place automatically as soon as the Pressing pressure is exerted so as to avoid the dangerous manipulation under the pressurized press. Furthermore, the improvement also aims to enable dismantling in the same way. To this end, suggests now the invention that the clamping bodies are designed as spherical or roller-like hollow bodies. thanks to this Measure is achieved that the clamping body automatically move into their locking position when the pulley forming parts of the assembly pressure mentioned is exerted. With the appropriate position of the pulley, it is also achieved that when such a pressure is exerted, these spherical or cylindrical clamping bodies move due to their own Move weight out of its locked position.

709839/0812

The invention has also set itself the task of providing a rope pulley in which the parts forming the rope pulley rim without Screws can be tightly clamped together to develop further that the introduction of the feed ring is simple and in a single assembly process together with the tensioning of the rope pulley ring forming Parts can be done, bearing in mind the fact that such assembly work yes often in open terrain and thus under difficult conditions Working conditions can only be carried out. The pulley is now further characterized in that the cross-section of the essentially U-shaped pulley ring consists of two parts that can be positively connected to one another, each part having a lining ring laterally abutting flange and a base surface angled thereto has, which together form the support of the feed ring and on the base surface of one part, preferably near the central cross-sectional plane of the pulley, one against the The axis of rotation of the same offset and to the axis of rotation coaxial cylinder surface adjoins and this cylinder surface the second part is pushed on, the outside of which is resting in depressions in the cylinder surface and abuts this protruding clamping body.

709839/0012

The drawing illustrates the invention without restricting it to the exemplary embodiments shown. FIG Λ a cable pulley in cross section;. FIGS. 2 and 3 training possibilities of that detail which is indicated in FIG. 1 by a circular line; 4 and 5 are partial views of the configurations according to FIGS. 2 and 3ί FIG. 6 illustrates the contouring process; 7 shows a further possible embodiment of the rope pulley in overall cross-section; 8 shows the same cross section through the rope pulley, but with parts pulled apart in the axial direction of the rope pulley; 9 shows a cross section through a rope pulley of a similar embodiment.

The pulley of Fig. 1 consists essentially of the Cable pulley base body 1, which can have spokes or a wheel disc 2, the support body 3 for receiving the Chuck ring 4 and the side flange 5 and the hub The parts mentioned (with the exception of the lining ring 4) are made in one piece; furthermore, the pulley consists of the ring-shaped one Flange 6, the lining ring 4 and the spherical or cylindrical clamping bodies 7 · If here of cylindrical clamping bodies is spoken, it is understood to be cylindrical bodies. At the edge, the support body 3 has a circumferential groove 10, which is expediently slightly wider than the diameter

709839/081?

ser of the cylindrical or spherical kleroin bodies. l) or Plansch 6 is designed as a ring, the inner part of which is a little I ¹ UaB larger than the diameter of the rack body ⁷ ) so that this ring flange 6 can be pushed laterally onto the support body. In the case of the capped exemplary embodiment according to FIG. 6, the supporting body fax · the putter ring 4 and the support for the plan b are practically identical.

The inner width W of the rope sheave crane, which is passed through the two Splash 5 and 6 is limited, is when fully assembled Pulley slightly smaller than the width of the unloaded putter ring 4. In the example shown is the one Plansch 5 in one piece with the support body 3 for the lining ring 4 is formed. This embodiment is not essential for the invention. It is quite possible also to design the second puddle as a separate component and to attach it to the support body 3 or a support, as will be explained in detail below from Plansch 6. The splash 6 has on its outside a cone-shaped surface TI, which the sprags 7 eats immediately next to them and is close to them.

The assembly process now takes place as follows: On the supporting body 3 (Fig. 6) lying on a horizontal surface,

709839/0812

on which the Ji'utterring 4 is drawn, the flange 6 is first placed freely, then the spherical or cylindrical clamping bodies are placed on the flange 6 at equal intervals by hand and distributed, as illustrated in the figure. The glue bodies 7 are placed on the outer conical surface 11 of the flange 6. Once this is done, a press is used to exert pressure in the direction of arrow 12, causing flange 6 to move into the position shown in I) ¹ Ig. The position indicated by a dashed line is pushed, with the lining ring 4 being pressed together at the same time. The clamping bodies 7 resting on the conical surface 11 now roll due to their weight into the slot 10 provided for their reception (see dashed line in FIG. 6). If now the press relieved, the compressed and elastic lining ring 4 pushes the flange 6 upward back to the clamp body 7 ^a m outer edge of the groove 10 abut and lock so the flange 6 against the further axial displacement. This process takes place completely automatically when the pressure is applied and when it is subsequently relieved, without the need for manual intervention.

The dismantling (when changing the feed ring) takes place in this automatic way. When dismantling, however the pulley is placed on the horizontal surface so that

709839/0812

- ^ r-AS

the flange 6 is on the underside. Will now be the one mentioned If the pressure is applied again, the original will be clamped clamp body 7 released and fall through their own weight downwards, so that the flange ό is released when the load is subsequently released.

The discussed embodiment according to FIGS. 1, c; and 4 requires a manual even distribution of the sprags? over the circumference of the conical surface 11 to facilitate the flange 6. lim this distribution, can on the outside of the flange 6 ¹ (see Fig. 5) pocket-like recesses 1? be arranged, the distribution of the clamping bodies 7 'is given by their position from the outset.

If it has also been stated that the on

for the support for the flange existing recesses Recording of the clamp body around a university-shot hat it must be added that locally limited, shell-like depressions can also be provided here. Will a support with such bowl-like depressions used in Connection with a hanging flange, as shown in FIG. 3, for example shows, then it is appropriate to form the support and the flange in such a way that these two parts

709839/081?

can only be joined together in the intended hadial positioning can, for example, in the one on the support a groove parallel to the pulley axis and in the flange a corresponding groove Spring is provided, with the same position of these two parts and the pocket-like depressions 15 and the bowl-like troughs of the support one have mutually corresponding position.

The present invention is not limited to the embodiment of the rope pulley shown in FIG. 1. It is It is quite conceivable to design the flange to be pushed on laterally in such a way that it is not in the position formed by the support body 5 cylindrical plane is supported by the clamping body, but for example in a counter to this the axis of rotation of the pulley offset plane or support, also the substantially rectangular cross-sectional shape of the the flange 6 to be pushed on, which can be seen from FIG. 6, is not essential to the invention. It would be conceivable that the invention Construction can also be used for those rope pulleys, which, for example, have a split pulley ring as shown in FIG. 7. If the support for receiving the flange to be pushed on and the clamping body is offset in the sense mentioned opposite the support surface for the lining ring, so it would be also conceivable, the circumferential contour of this edition polygonal

709839/081?

to train. In this case there would be a cylindrical wing for the feed ring in front of and a subsequent one, in terms of the diameter compared to the wing for the lining ring offset support before, which can be designed polygonal with regard to its circumferential contour or also circular. The receiving opening of the flange to be pushed on regardless of whether it is a simple annular flange, as shown in FIG. 1, or around a profile-like shaped flange according to FIG. 7 is then to be designed to correspond to the circumferential contour of the support. The assembly advantages that can be achieved by using spherical or cylindrical clamping bodies, is given in all cases.

The pulley according to FIG. 7 now has an essentially U-shaped pulley rim which is formed from the two parts 102 and 103. The part 102 has a flange 105 lying laterally in the lining ring 104 and a base surface 106 arranged at an angle to it. A pulley 107 or spokes connect this part 101 of the pulley rim with a preferably one-piece pulley hub 108. The other part 103 is annular and also has one Flange 10 resting on the side of the chuck ring 104 ⁽

709839/0812

and a base surface 110 arranged at an angle thereto. The two base surfaces 106 and 110 represent conical surfaces and together form the support for the lining ring 104. Between the respective .Flange 105, 109 and the associated one An obtuse angle is provided here on the base surface 106, 110. But it would be quite conceivable and possible here also choose a right-angled arrangement between the flange and the base surface. liahe the middle cross-sectional plane 111 of the pulley closes on the base surface 106 of the first part 102 against the axis of rotation of the pulley stepped shoulder 112 towards. A circumferential groove 113 is inserted into the shoulder surface 112 here, which to accommodate the clamping body 114- is used. The clamping bodies 114 inserted into this groove 113 protrude beyond the shoulder surface 112. The outer diameter of the heel surface 112 is slightly smaller than the inner diameter of the ring body, which forms the second part 103, so that this part 103 is pushed onto the shoulder 112 in the direction of the axis of rotation of the rope pulley can be. The outer boundary surface 115 of this Part 103, which rests on the clamping body 114, forms an acute angle together with the shoulder 112.

The base surfaces 106 and 110 form an obtuse angle with one another, which enables the assembly of the lining ring 104,

709839/0812

as will be explained in detail later, facilitated. In the embodiment shown in FIG. 7, the parting plane is of the two parts forming the pulley rim, approximately in the center plane 111 of the pulley. However, it would be It is conceivable to design the rope pulley ring asymmetrically, as is already known in the case of rope pulleys, and the parting plane to offset the two parts laterally relative to the central plane 111 of the pulley. In the example shown, however the two base surfaces 1Ub and 110 are essentially of the same width, so that feed rings with a symmetrical cross-section are used can be.

When assembling the lining ring 104 this is initially on the part 102 is placed and by hand without tension, ßiun the second part 103 is placed and pressed against the first part by means of a press (arrow direction 116), to the clamping body 114 is inserted into the groove 113 of the shoulder 112 can be. Once this has happened, the pulley is relieved of the pressure and the pulley that is compressed first Lining ring expands in the axial direction and now presses the part 103 against the out of the plane of the paragraph 112 protruding clamping body 114. In the case of dismantling, after removal of the clamping body 114, the lining ring without additional tools and without damaging it

709839/0812

27109A1 -30

will be removed. The inner width w of the pulley ring is slightly smaller than the width of the unloaded feed ring 104 ·. The maximum amount that the inserted chuck ring 104- can be compressed, is given by the distance S between the directly adjacent, in the present case parallel, end faces 117 and 11b of the stepped shoulder 112 and the part 103 given. This also means that the lining ring can be assembled gently possible, as this cannot be squeezed at will due to the travel limitation.

The embodiment of FIG. 9 differs from the first discussed by the type and design of the parts directly receiving the clamping bodies. So far in both exemplary embodiments Identical components are present, they have been given the same reference numbers, which, however, are An index line has only been added to the distinction in the second case.

The difference mentioned lies in the fact that here in the execution sbei game according to FIG. 9 in paragraph 112 'a circumferential Groove is provided for receiving the ball-like clamping bodies 121, the width of which is greater than the diameter of the Clamping body 121. Furthermore, on the clamping bodies 121 un-

709839/0612

-Vf-XA

indirectly adjacent area of the outside II5 ^{1 of} the part 103 'pocket-like milled recesses or indentations Ί i 9 are provided for receiving the clamping bodies 121. The construction greatly facilitates assembly, as has already been described in connection with FIGS. 1 to 6.

In a further embodiment of the invention, which is not shown here, instead of a circumferential groove 120 for receiving the spherical or cylindrical clamping bodies 121, pocket-like or shell-like depressions can be arranged on the shoulder 112, which are expediently spaced as equally as possible on the circumference of this shoulder own. Such an arrangement, however, requires greater attention during assembly, since it must then be ensured that the indentations 119 of the part 103 'and the pocket-like depressions on the shoulder 112' are each corresponding to one another. In such a case it is expedient to design the shoulder 112 'or the opening of the part IO3 ¹ that accommodates it by projecting springs or grooves so that these two parts can only be joined together at a very specific angular position, the correct one being the correct one Angular position ensures that the pocket-like indentations of the ab-

709839/081?

Set 112 'and the indentations 119 of the part 103' corresponding lie to each other.

709839/0812

Claims (12)

27109A1 Patent claims: ι'Λ.j Rope pulley for cableway systems with an elastic lining ring, this lining ring between two flanges of the
Pulley is held and at least one of the flanges
on a support whose radial distance from the axis of rotation of the rope pulley is equal to or smaller than that of the lining ring, is pushed onto the side and secured against axial displacement by clamping bodies, which are located in depressions of the support and protrude above and on the protruding
or protruding part of the clamp body with the flange
its side facing away from the lining rests and the
Inside distance of the two flanges when assembled
the pulley is smaller than the width of the undeformed lining ring, characterized in that the clamping bodies are designed as spherical or roller-like hollow bodies. 2. Pulley according to claim 1, characterized in that the
the area adjacent to the sprags and in contact with them
of the flange with the surface having the recess
the support includes an acute angle. 709839/0812 ORIGINAL INSPECTED 3. Pulley according to claim 1, characterized in that on the outside of the flange to be pushed onto the support pocket-like indentations for receiving the clamping bodies are provided immediately adjacent. 4-, pulley according to claim 3 »characterized in that the pocket-like indentations are evenly distributed over the circumference of the flange. 5- pulley according to claim 1, characterized in that the Clamping bodies lie in a manner known per se in a circumferential groove provided on the support, the width of which is preferably is larger than the diameter of the clamp body. 6. pulley according to claim 1, characterized in that the clamping body in shell-like, localized depressions the rest of the edition. 7. Rope pulley according to claim 1 and 6, characterized in that that between the flange and support guide elements, for example in the form of hats and springs running parallel to the pulley axis are provided, so that flange and support can be joined together in a predetermined radial positioning. 709839/0812 8. pulley according to one of claims Ibis 7, characterized in that that the support surface for the lining ring and the support for the flange to be pushed in different Radial distances from the axis of rotation of the pulley lie. 9. pulley according to claim 8, characterized in that the circumferential contour of the support deviates from the circular shape and is designed, for example, oval or polygonal. 10. Rope pulley according to one of claims 1 to 9 »characterized in that the cross-section of the substantially U-shaped pulley rim consists of two parts which can be positively connected to one another, each part (102, 103; 102 ', 1O3 ¹ ) having one of the feed ring ( 104, 104 ') laterally adjacent flange (105, 105', 109, 109 ') and a base surface (106, 110; 106', 110 ') arranged at an angle thereto, which together support the feed ring (104, 104') and on the base surface (106, 106 ') of one part (102, 102'), preferably near the central cross-sectional plane (111, 111 ') of the rope pulley, a cylindrical surface (112, 112') offset towards the axis of rotation thereof and coaxial with the axis of rotation. ) and on this cylinder surface (112, 112 ') the second part (103, 103 ¹ ^ is pushed, which with its outside (115 »115') at in 709839/0812 Depressions (113, 120) of the cylinder surface (112, 112 ') resting and opposite this protruding sprags , 121) is present. 11. Pulley according to claim 10, characterized in that the base surfaces (106, 110; 106, 110 ') of both parts (102, 103; 102 ', 103') have at least approximately the same width. 12. Pulley according to one of claims 10 or 11, characterized in that that the at right angles to the axis of rotation of the rope roll provided end faces (117, 118; 117 ', 118 ") of the pushed-on part (103, 103 ') and the offset cylinder surface (112, 112') from each other by a small amount are distant. For Lorünser Leichtmetallwerk KG .: The representative: 770302 Ϊ09839 / 0912