EP1863692A1

EP1863692A1 - Drive device pertaining to an automotive ropeway carriage

Info

Publication number: EP1863692A1
Application number: EP06704690A
Authority: EP
Inventors: Walter Reisch
Original assignee: Reisch Maschinebau GmbH
Current assignee: Reisch Maschinebau GmbH
Priority date: 2005-04-01
Filing date: 2006-02-08
Publication date: 2007-12-12
Anticipated expiration: 2026-02-08
Also published as: US7650842B2; US20080078300A1; CN101151185B; EP1863692B1; AT501288B8; DE502006003720D1; CN101151185A; CA2602931A1; AT501288B1; WO2006102690A1; CA2602931C; AT501288A4; ATE431277T1

Abstract

A driving system of a self-driving cableway car includes on both sides of a vertical plane (8), in which the bearing cable (6) is located, driving chains (9, 10) that revolve about chain sprocket wheels (13, 14) with horizontal rotational axes (15, 16) The driving chains carry clamping units (31) with friction linings (35) for contacting the bearing cable (1), and lead rails (36, 37) disposed on opposite sides of the bearing cable. The clamping units (31) are guided during the revolution of the driving chains (9, 10) through a particular interspace (38, 39) between the bearing cable (6) and one of the lead rails (36, 37), and the friction linings (35) of the clamping units (31) are pressed onto the bearing cable (6) by rollers (33) rolling out on running faces (40, 41). Also, a particular lead rail (36, 37) is preloaded by a spring device (46) against clamping units (31) located in the interspace (38, 39) between this lead rail (36, 37) and the bearing cable (6). The rollers (33) are rotatably supported on the clamping units (31). The lead rails (36, 37) have the running faces (40, 41) on which roll out the rollers (33) of the clamping units (31) for pressing the friction linings (35) of the clamping units (31) onto the bearing cable (6).

Description

Drive device of a self-propelled cable car

The invention relates to a drive device of a self-propelled cable car, which on both sides of the vertical plane in which the support cable is located around sprockets with horizontal axes rotating drive chains, which carry clamping units with friction linings to rest on the support cable, and arranged on opposite sides of the support cable Anstellschienen, wherein the Clamping units when circulating the drive chains are guided through a respective intermediate space between the support cable and one of the Anstellschienen and in this case the friction linings of the clamping units are rolling from rolling rollers on treads are pressed against the support cable and wherein a respective Anstellschiene of a spring device against each in the space between this Anstellschiene and the suspension cable located clamping units is stretched.

Although there are a large number of proposals for the design of self-propelled aerial ropeways, these have hitherto only been practicable for special applications, such as rescue vehicles. An economical application for permanent cable cars is so far not possible. For such not only a high gradeability and driving speed must be given, but it must also be a sufficient wear resistance. In addition, it is essential that the ratio of dead weight to payload is not too great. Gradeability is usually required to be at least 100%. For the driving speed, a value of at least 2 to 5 m / s is desired. With customary cable usage intensities, hundreds of operating hours and more per year are achieved and appropriate wear resistance must be available. Acceptable weight ratios between tare and net weight should be better than three, preferably better than two.

To achieve sufficiently large friction surfaces between the friction elements and the support rope crawler-type constructions are used for self-propelled aerial tramways. Here, elastically chucked friction elements are prescribed. In order to be able to apply sufficiently high forces for pressing the friction elements onto the carrying cable, the rollers which roll on corresponding running surfaces and thereby press the friction elements against the carrying cable are hardened, as are the running surfaces for the rollers.

In AT 263 851 B, in addition to exemplary embodiments in which a single drive chain revolving in a vertical plane is also described, an exemplary embodiment of a drive device of a self-propelled cable car is described, in which a drive chain is in each case arranged around the vertical plane in which the carrying cable lies Sprockets with horizontal axes rotates. At the chain links clamping tabs are arranged, which are carried out in each of the supporting cable adjacent portion of the drive chains through a respective space between a drive rail and the support cable. To the Clamping plates are rotatably mounted with the interposition of springs rollers, which roll on running surfaces of Anstellschienen, wherein the springs are compressed and the clamping straps are pressed against the support cable. A disadvantage of this device is the complicated design of the attached to the drive chains clamping units. Each clamping unit requires a spring device, from which a sufficient contact force must be applied to the supporting cable and which is exposed to very high wear due to the continuous working movements with each revolution of the chain and therefore must be designed with the appropriate effort. In addition to the increased design complexity, this leads in particular to a relatively high weight of the drive device and thus the entire cable car, whereby the efficiency of the device is significantly affected.

In the known from CH 462 225 drive the attached to the chain links clamping plates are loaded by stationary springs under spring action, as is common in crawler tracks The spring-loaded rollers press the clamping plates to the support cable in each of the rollers located in the section of the chain at. The spring-loaded rollers must pass over the gaps between the individual clamping straps. This continuous driving over of rail joints not only leads to a troubled run but also to a high degree of wear. As a result, only a relatively short service life is achieved, in particular if the construction effort and the weight are not to become too high.

In the device of CA 1096368 A arranged on opposite sides of the supporting cable, lying in a common plane drive chains are present. On the chain links clamping plates are mounted, which are pressed from above and below against the supporting cable. In order to pressurize the clamping plates, as is known from caterpillar tracks, a roller unit is again provided, in which case the rollers are rotatably mounted on separate chains, which rotate around a carrier within the area surrounded by the drive chains. To clamp the suspension cable between the opposing clamping plates, the carriers are pulled together by means of piston-cylinder units. In addition, a spring device for exerting a mutually directed bias of the two carriers is also available. The expenditure on equipment of this device is still substantially higher than in the mentioned constructions of AT 263 851 and CH 462225 and the weight requirements for economic operation of a self-propelled cable car, especially if this is to be used as a means of transport for persons, can not be approximately maintained , Also, the rollers acting on the clamping plates in turn overrun the joints between the clamping plates, which causes wear problems. Furthermore, in the area in which the clamping plates are pressed from above and from below to the support cable, no support rollers of the cable car on the support cable roll, so that a cable car would be feasible only with a very sweeping design. A device of the type mentioned is known from DE 202 13 353 U1. In the drive device known from this document, the rollers, by means of which the friction linings of clamping units are pressed against the support cable, are rotatably mounted on U-profiles. The running surfaces on which these rollers roll are arranged on the clamping units, which are supported by the chain links of the drive chains. In this case, the rollers are run over by the roles when circulating the drive chains, the shocks between the individual clamping units, which brings a troubled run and high wear with it.

The object of the invention is to provide an improved drive device of the type mentioned, with a sufficient Gradeability and driving speed can be achieved and this case has a high wear resistance and a relatively low weight. According to the invention, this is achieved by a drive device having the features of claim 1.

Essential features of the device according to the invention are in particular that the rollers are rotatably mounted on the clamping units and the Anstellschienen are spring-loaded. The required contact forces of the clamping units on the supporting cable are applied by the suspension device acting on the Anstellschienen. Therefore, no springs need to be present on the clamping units themselves, which must carry out continuous working movements with each revolution of the chain, whereby a significant weight saving is made possible. The rotatably mounted on the clamping units rollers run off at bum-free continuous running surfaces of Anstellschienen. The wear of these rollers and the running surfaces of the rails can thus be kept relatively small. The running surfaces of the rollers and the rails can be made hardened in this case.

In an advantageous embodiment of the invention engage the Anstellschienen two or more spaced apart in the longitudinal direction of the rails consoles, these consoles facing each other in pairs and are designed as a one-armed lever and between which spring-loaded tension rods run, the consoles around their axes of rotation against each other pull.

Preferably, the clamping units are slidably mounted in the link plates of the chain links, wherein they protrude on both sides over the chain. It is particularly preferred in this case that the two link plates window recesses, which are traversed by a body of the respective clamping unit. In this case, a very simple and expedient construction is achieved, whereby tilting moments between the drive chain and the friction linings pressed onto the carrying cable can also be minimized. Conveniently, the chain links connecting the chain pins and the friction linings of the clamping units and preferably also the rollers of the clamping units can lie in a common plane.

Further advantages and details of the invention are explained below with reference to the accompanying drawings. In this show: Fig. 1 is a simplified, partially schematic representation of an embodiment of the invention, in oblique view;

Fig. 2 is an illustration corresponding to Figure 1, wherein parts of the drive means have been omitted to illustrate the other elements ..;

3 is an oblique view of the Anstellschienen, the support cable and portions of the intervening chain strands of the drive chains, from a slightly different direction of view;

4 shows an oblique view of the positioning rails and the spring device acting upon them from another turn;

5 shows a simplified cross section through one of the two middle support rollers,

Fig. 6 is an enlarged detail A of Fig. 1, wherein the front Anstellschiene and their spring means are omitted.

An embodiment of the invention is shown in FIGS. A support frame 1 comprises the longitudinal members 2, on which the two middle support rollers 3, 4 are rotatably mounted, and a longitudinal beam 2 connecting the cross member 5. The support rollers 3, 4 run on the support cable 6 from.

On the support frame 1, a hanger 7 is suspended, of which in Figs. 1 and 2, only one hingedly connected to the cross member upper arm is visible and which may in particular comprise a cable car cabin.

On both sides of the vertical plane 8 (see Fig. 5), in which the support cable 6 is located, run drive chains 9, 10 in vertical planes 11, 12 to. The drive chains 9, 10 each run around first and second sprockets 13, 14, which are shown in Fig. 2 only by dash-dotted lines. The drive chains 9, 10 are in Figs. 1 and 2 only partially excellent and their remaining course is indicated by dash-dotted lines.

The two first sprockets 13 of the two drive chains 9, 10, like the two second sprockets 14 of the drive chains 9, 10, are coaxial with one another (the axes of rotation 15, 16 are shown in FIG. 2). The two sprockets 13 of the respective drive chain 9, 10 are driven by a motor, not shown in the figures for the sake of simplicity, to move the self-propelled cable car. This drive of the sprockets 13 may be formed in a conventional manner. The two sprockets 14 are freely rotatably mounted.

Between the two first sprockets 13 as well as between the two second sprockets 14 additional support rollers 54, 55 are arranged, which roll on the support cable 6. The first sprockets 13 with the intermediate support roller 54 are preferably formed as well as the second sprockets 14 with the intermediate support roller 55 as rigidly interconnected units 17, 18, which are shown in Fig. 1 for the sake of clarity only schematically. These units 17, 18 are rotatably mounted on supports 19, 20 and 21, 22, which are pivotally mounted about pivot connections 23, 24 about a horizontal and perpendicular to the supporting cable 6 pivot axis. On the carriers 19, 20 and 21, 22 attacking, only schematically illustrated springs 25, 26 act as tension and compression springs. When the supports 19, 20 and the supports 21, 22 are pivoted relative to each other from their parallel orientation, the springs 25, 26 cause a restoring force in the direction of this parallel orientation. Depending on the curvature of the support cable 6, there is a loading or unloading of the outer support rollers 54, 55, so that in each case a part of the weight of the cable car over the support rollers 54, 55 is derived on the support cable 6. The springs 25, 26 act in the embodiment shown in each case between two in opposite directions of the pivotal connections 23, 24 extending beams 19, 21 and 20, 22nd

In this way, a part of the weight of the cable car is transferred to the support cables 6 of the support rollers of the units 17, 18. The other part of the weight is transferred to the carrying cable 6 by the middle carrying rollers 3, 4 lying between these outer carrying rollers. The unit comprising the pivotally interconnected supports 19 to 22, the springs 25, 26 acting therebetween, the sprockets 13, 14 and the support rollers 54, 55 disposed therebetween, and the drive chains 9, 10 revolving around the sprockets 13, 14 , Is mounted pivotally on the support frame 1 total. For this purpose, the carriers 19, 20 are rigidly connected via connecting pieces 56 to a cross member 57. The cross member 57 has on both sides connecting arms 58 which are hingedly connected to the cross member 5 attached to the connecting plates 59. This pivot axis 60 is horizontal and perpendicular to the support cable and in a plane in which the support cable 6 is located. Different slopes of the support cable 6 have thereby no influences on the wheel loads of the support rollers 54 and 55th

It would also be conceivable and possible to provide only support rollers that are independent of the chain drive. The formation of the support rollers and their storage could then be done in a conventional manner.

The drive chains 9, 10 are formed as link chains. A respective chain link has two transversely spaced apart link plates 27, 28, which are connected to each other via chain pins 29. On the chain pin chain rollers 30 are arranged

The drive chains 9, 10 carry clamping units 31. In the illustrated embodiment, a clamping unit 31 is supported by each chain link, as is preferred.

A respective clamping unit 31 is slidably mounted in the two link plates 27, 28 of a respective chain link, in the direction perpendicular to the support cable 6. Here, the link plates window recesses, which are penetrated by the clamping units 31, wherein the clamping units 31 on both sides of a respective drive chain 9, 10 protrude from the link plates 27, 28. The clamping units 31 each comprise a body 32 on which on the one hand a roller 33 is rotatably mounted and on the other hand, a lining carrier 34 is fixed, which receives a friction lining 35 and determines. The lining carrier 34 with the friction linings 35 are respectively attached to the protruding on the side of the support cable 6 from the link plates 28 portion of the body 32. The rollers 33 protrude on the side facing away from the support cable 6 on the respective link plate 27 and the front end of the body 32.

The friction lining 35 of a respective clamping unit 31 and the link plates 27, 28 of this clamping unit 31 overlapping chain link lie in a common plane. The roller 33 of the clamping unit is also in this plane. Preferably, this plane passes through the chain pins 29 connecting the link plates 27, 28.

The drive chains 9, 10 each lie with a section in a common plane, in which the support cable 6 is located. Anstellschienen 36, 37 are arranged in the region of these sections of the drive chains 9, 10, which also lie in the same plane. The Anstellschienen 36, 37 extend here on both sides at a distance from the support cable 6 parallel to this.

The respective sections of the drive chains 9, 10, which lie in a common plane, in which the support cable 6 is located, are guided by intermediate spaces 38, 39 between the support cable ό and the respective Anstellschiene 36, 37. The slidably mounted in the link plates 27, 28 of the chain links clamping units 31 are thus guided by the drive chains 9, 10 also through these intermediate spaces 38, 39. In this case, the rollers 33 come to rest on running surfaces 40, 41 of the positioning rails 36, 37 and roll along these running surfaces 40, 41. These running surfaces are thus arranged on the support cable 6 facing sides of the Anstellschienen 36, 37.

The running surfaces 40, 41 extend over the major part of their longitudinal extension parallel to the carrying cable 6. In the vicinity of their two longitudinal ends they have sections 42, 43 in which their distance from the carrying cable 6 to the respective free end 44, 45 of the adjusting rail 36, 37 enlarged. These sections are formed by inlet slopes of the Anstellschienen 36, 37.

The Anstellschienen 36, 37 are biased by a spring means 46 against each in the spaces 38, 39 between the Anstellschienen 36, 37 and the supporting cable 6 are located - clamping units 31, the rollers 33 roll on the running surfaces 40, 41. It is thereby applied the required clamping force with which the friction linings 35 are pressed from opposite sides to the support cable 6.

As can be seen in particular from FIG. 4, the spring device 46 comprises brackets 47 connected to the adjusting rails 36, which act on the outer sides of the positioning rails 36, 37 facing away from the supporting cable 6 and with which springs 48 cooperate. With each of the Anstellschienen 36, 37 at least two spaced apart in the longitudinal direction of the Anstellschienen 36, 37 consoles 47 are connected (in the illustrated embodiment, four), the Kon- Solen 47 of the two Anstellschienen 36, 37 opposite to each other in pairs and from the Anstellschienen 36, 37 respectively project upwards.

The brackets 47 act as a one-armed lever, wherein at the remote from the Anstellschienen 36, 37 ends of the consoles 47 push rods 49 extend between them. In the area between the push rods 49 and the Anstellschienen 36, preferably in the vicinity of Anstellschienen 36, 37 extend between opposite brackets 47 tie rods 50 which pass through the brackets 47 through holes. On the outside of one of the two opposite brackets 47, the tie rod 50 is supported, for example, by a nut 51 screwed onto an external thread of the tie rod. On the outside of the other console 47, the pull rod 50 passes through the spring 48 formed in the illustrated embodiment as a plate spring assembly and is supported on the outside thereof via a contact plate 52, which can be formed, for example, by an enlarged head of the pull rod 50.

Between the brackets 47 and the push rods 49 joints could be present or the low pivoting angle are applied by the elasticity of the material, as shown schematically in Fig. 4. The same applies to the connections of the consoles 47 with the Anstellschienen 36th

The Anstellschienen 36, 37 are mounted in the transverse direction on the support frame 1 slidably. A transverse guide 53 on the cross member 5 is indicated schematically in Fig. 1.

If the drive chains 9, 10 are driven by the motor, not shown in the figures, the clamping units 31 of the drive chains 9, 10 are guided through the intermediate spaces 38, 39, wherein the spring loading of the Anstellschienen 36, 37 against the on the running surfaces 40, 41 of the Anstellschienen 36, 37 rolling rollers 33 of the clamping units 31, the friction linings 35 are pressed against the support cable 6. As a result, the drive chains 9, 10 are sections of the clamping units 31 in frictional connection with the support cable 6, whereby the cable car is moved.

In order to align the friction linings 35 of the clamping units 31 correctly when entering the intermediate spaces 38, 39 between the positioning rails 36, 37 and the carrying cable 6 to the carrying cable 6 (in the plane of the circulation of the chain and in the direction perpendicular to the carrying cable 6) are not shown asked guide parts, z. B. roles available.

Furthermore, it is ensured by auxiliary means, also not shown, that the clamping units 31 are when passing over the sprockets 13, 14 in its open position.

The running surfaces 40, 41 of the Anstellschienen 36, 37 are formed of hardened steel. The rollers 33 of the clamping units 31 are made of steel and are hardened at least in the region of their treads. The friction linings 35 are made of an elastic material. It is thus of the friction linings only relatively low surface pressure can be introduced, so that a total of relatively large friction surface is required, which can be achieved by the caterpillar-like construction.

In special cases, the clamping units 31 may each have a force acting between the roller 33 and the friction lining 35 spring whose spring force is greater than acting on this clamping unit 31 portion of the total transmitted via the Anstellschienen 36, 37 contact force when the support cable over the clamped area has a constant diameter. It comes therefore with such a constant diameter of the support cable 6 to no compression of such springs not shown in the figures of the support units 31. Only if a local thickening of the support rope is present (eg., By holding down or securing), which on The clamping unit 31, which is pressed onto the carrying cable in the region of this thickening, has a considerably higher force, this spring is compressed and thus acts as an overload protection.

Various modifications of the embodiment shown are conceivable and possible without departing from the scope of the invention. For example, it would be conceivable and possible, although less preferred, not to slidably mount the clamping units 31 in window recesses of the link plates 27, 28, but to suspend them from the link plates. The clamping units 31 are then still guided by the intermediate spaces 38, 39, but then the drive chains 9, 10 would extend above these intermediate spaces 38, 39.

L e g e to the reference numbers:

1 support frame 29 chain pins

2 side rails 30 chain roller

3 carrying roller 31 clamping unit

4 carrying roller 32 body

5 cross member 33 roll

6 carrying cable 34 lining carrier

7 hanger 35 friction lining

8 vertical plane 36 positioning rail

9 Drive chain 37 Adjustment rail

10 Drive chain 38 Interspace

11 vertical level 39 intermediate space

12 vertical level 40 tread

13 first sprocket 41 tread

14 second sprocket 42 section

15 axis of rotation 43 section

16 axis of rotation 44 free end

17 unit 45 free end

18 unit 46 spring device

19 carrier 47 console

20 carrier 48 spring

21 carrier 49 push rod

22 carrier 50 pull rod

23 pivot connection 51 nut

24 pivot connection 52 contact plate

25 spring 53 transverse guide

26 spring 54 carrying roller

27 Chain link 55 carrying roller

28 Link plate 56 Connecting piece

57 cross member

58 connecting arm

59 connection tab

60 pivot axis

Claims

claims:

1. Drive device of a self-propelled cable car, which on both sides of the vertical plane (8) in which the support cable (6) to chain wheels (13, 14) with horizontal axes of rotation (15, 16) driving chains (9, 10), which clamping units ( 31) with friction linings (35) to bear on the support cable (6), and on opposite sides of the support cable (6) arranged Anstellschienen (36, 37), wherein the clamping units (31) during rotation of the drive chains (9, 10) a respective intermediate space (38,

39) between the support cable (6) and one of the Anstellschienen (36, 37) are guided and in this case the friction linings (35) of the clamping units (31) of on running surfaces (40, 41) rolling rollers (33) to the support cable (6) are pressed and wherein a respective Anstellschiene (36, 37) of a spring device (46) against each in the space (38, 39) between see this Anstellschiene (36, 37) and the support cable (6) located clamping units (31) tensioned characterized in that the rollers (33) are rotatably mounted on the clamping units (31) and that the Ansteflschienen (36, 37), the running surfaces (40, 41) on which the rollers (33) of the clamping units (31) for pressing the friction linings (35) of the clamping units (31) on the support cable (6) roll.

2. Drive device according to claim 1, characterized in that the spring device (46) with the Anstellschienen (36, 37) connected brackets (47), which are acted upon by springs (48).

3. Drive device according to claim 2, characterized in that with each of the Anstellschienen (36, 37) at least two in the longitudinal direction of the Anstellschienen (36, 37) spaced apart brackets (47) are connected, which face each other in pairs, with opposite brackets (47 ) are each connected to each other by springs (48) acted on tie rods (50).

4. Drive device according to claim 2 or claim 3, characterized in that the brackets (47) are designed as a one-armed lever.

5. Drive device according to claim 4, characterized in that the arrival of the rails (36, 37) remote ends of each opposite brackets (47) by pressure rods (49) are spaced from each other.

6. Drive device according to one of claims 1 to 5, characterized in that the Anstellschienen (36, 37) are mounted transversely to the supporting cable (6) displaceable on a support frame (1).

7. Drive device according to one of claims 1 to 6, characterized in that the drive chains (9, 10) chain links with chain pins (29) connected chain have tabs (27, 28) and the clamping units (31) in each case in the two link plates (27, 28) of one of the chain links is slidably mounted.

8. Drive device according to claim 7, characterized in that the clamping unit (31) through window recesses in the two link plates (27, 28) of a chain link.

9. Drive device according to claim 7 or claim 8, characterized in that the friction lining (35) and the roller (33) of a respective clamping unit and the Kettenla- see (27, 28) of this clamping unit (31) overlapping chain link in a common

Lie flat, preferably the chain links (27, 28) connecting the chain pin (29) with the friction lining (35) and the roller (33) of the clamping unit (31) lie in a common plane.

10. Drive device according to one of claims 1 to 9, characterized in that the first sprockets (13) of the two drive chains (9, 10) are coaxial with each other and between the first sprockets (13) coaxially to these, on the support cable (13 6) rolling roller (54) is arranged and that the second sprockets (14) of the two drive chains (9, 10) are coaxial with each other and between the second sprockets (14) coaxially to these, on the support cable (6) rolling

Supporting roller (55) is arranged.

11. Drive device according to claim 10, characterized in that the first sprockets (13) and the idler roller lying between them as well as the second sprockets (14) and the idler roller between them as rigidly interconnected units (17, 18) are formed.

12. Drive device according to claim 10 or claim 11, characterized in that the first sprockets (13) and the idler roller (54) lying between them as well as die.zweiten sprockets (14) and the idler roller (55) lying between them to a horizontal, at right angles to the supporting cable (6) stationary axis pivotable carriers (19, 20, 21, 22) are mounted.

13. Drive device according to claim 12, characterized in that between the one outer support roller (54) carrying carriers (19, 20) and the other outer support roller (55) carrying carriers (21, 22) springs (25, 26) act in that, when the supports (19, 20; 21, 22) are pivoted out of their parallel orientation, they exert a restoring force in this parallel orientation.

14. Drive device according to claim 13, characterized in that the springs (25, 26) between the pivotally interconnected carriers (19, 20, 21, 22) of these two support rollers act.

15. Drive device according to claim 13 or claim 14, characterized in that the carrier (19, 20, 21, 22) comprising unit as a whole is pivotally connected to the support frame (1), and that about a horizontal, perpendicular to the support cable ( 6) standing pivot axis (60) which lies in a through the supporting cable (6) extending plane

16. Drive device according to one of claims 10 to 15, characterized in that further in the region between these support rollers middle support rollers (3, 4) are rotatably mounted on the support frame (1).