HK1237008A - Cable brake assembly - Google Patents

Description

The present invention relates to a rope arrangement (catching device) for the variable preset absorption of kinetic energy in rope structures, such as elevators, flexible barriers or cableways, as defined in the general concept of claim 1.

A device of this type is described in DE 10 2005 053 704 A1.

This rope brake system has two connecting points. Between these connecting points there is a rope brake element with a brake plate with holes and several rope pieces that can be drawn through the holes with resistance. The brake plate is equipped with the holes in several rows lying behind each other and at one end with the first connecting point. At the second, the first inverted connecting point, the rope pieces are connected to each other. Each of the rope pieces is carried out individually by a series of interlocking holes, each of which is carried out in a different direction of execution of the rope pieces in the successive drills. The rope pieces are trained equally and all rope pieces are effective together when the rope bridge is running over the entire bridge.

The disadvantages of this device include the following: During the braking operation, the brake lines of this device are subjected to a very strong mechanical stress to bend and shear, which excludes the reusability of the device.

Furthermore, this device does not allow the braking force or the trigger force to be set freely and independently, but is determined by the design and dimensioning of the components in relation to each other, which in turn increases the complexity of their commercial use.

Furthermore, the length of the brake deflection resulting from the braking operation is directly proportional to the length of the rope bodies pulled through, which means that the application of the brake, especially in applications with a high energy input, results in either too much force or too much deflection.

Moreover, the device does not show the pre-tension applied to the drawbar, so that any under- or over-tensioning of the drawbar has a negative effect on the effective operation of the drawbar.

In addition, the force exerted by this device is greater than the subsequent continuous braking force, i.e. the adhesive force to be overcome to initiate the braking action leads to an adverse shock absorption process, which in turn has a costly effect on the dimensioning of the impact points.

Another device of this type is known from WO 2009/137951 and is designed as a device for the shock absorption of rope structures, in particular for rock, moor and snow structures, and absorbs energy injected into a rope under tension by means of a deformable part of the rope incorporated in a rope under tension having one or more longitudinal elements, whereby the longitudinal element is connected to a rope at least on one end and is connected to a reversing element connected to another rope on the other side. Finally, there are means to maintain the main element in the middle when the rope is being restrained by the angle of the reversing or reversing element formed by the forces of the tension.

The disadvantages of this device include the following: The desired braking effect is achieved by plastic deformation of the longitudinal elements, which is contrary to the reusability of the brake.

The device is also difficult to install in series in traction lines, which limits its applicability in the field of special applications.

In addition, the device, due to its length, causes increased installation and manual transportation effort in rough or wooded terrain.

Furthermore, because of its bulky nature and size, this device cannot be installed in confined places or in an unsuitable location.

Furthermore, in this device neither the braking force nor the trigger force can be set freely and independently of each other, but is determined by the design and dimensioning of the components in relation to each other, which in turn leads to increased complexity in their commercial use.

Furthermore, the length of the brake deflection resulting from the braking operation is directly proportional to the length of the longitudinal elements pulled through, which results in the application of the device, especially at high energy consumption, either too high a force or too high a deflection.

Moreover, the device does not show the tension applied to the drawbar, so that any under or over tension of the drawbar has a negative effect on the effective operation of the drawbar.

The purpose of the present invention is to create a rope brake system of the type described in the general concept of claim 1, which is versatile and reusable at short notice.

The solution to this problem is provided by the characteristics of claim 1.

The subclaims contain advantages in terms of training in the invention.

Err1:Expecting ',' delimiter: line 1 column 593 (char 592)

The invention can also be considered as an energy absorbing device, the function of which is not based on plastic deformation or the overcoming of adhesive friction, but on the conversion of motion energy into frictional heat by Euler-Eytelwein conversion, and whose trigger or braking force is independently and locally adjustable and which indicates the achievement of the desired forward tension of the drawbar.

The device according to the invention preferably consists of two interlocking main components, a poller frame and the winding component (s), which are connected to one of two contact points within at least one string of rope loaded on a train.

The brake system is activated by increasing traction forces, by the actuating motion energy first exceeding the preset trigger force of the brake system and thus tightly spanning the surrounding component around the pole.

The first, second and/or third clamping devices of the rope brake system according to the invention may comprise single or multiple clamping devices, such as clamps adapted to the shape of the winding system, which are tightened by means of appropriate screws through threaded areas that can be penetrated by the frame at the end of the system in order to secure the winding system in the appropriate areas.

The locking device may be designed in particular as a rope arrangement, so that the clamping devices may be rope clamps, with one, two or more such clamps per clamping device, depending on the forces to be absorbed.

The free end areas of the ring unit or the rope arrangement shall preferably be fitted with attachment parts to prevent these free end areas from being pulled out of the frame when forces are applied to the ropes in which the rope braking arrangement is located.

A colour-coded indicator area may be visible at one of the free end zones, which changes position when the desired line front voltage is reached.

As explained at the outset, the rope brake arrangement of the invention may be provided for devices incorporating rope structures. Such devices may be lifts, flexible barriers, cableways or even retaining walls, such as stone-cutting structures. An example of such a stone-cutting structure is EP 2 489 785 A1, the entire value of which is indicated by reference to the content of the present application. Such a rope brake arrangement may normally consist of a number of masts, such as a beam, anchored in the ground, or more, such as the upper, middle and lower masts, which may be used for the installation of a cable or cable-carrier, or may be arranged in the area of the network, such as the area of the cable-carrier, or the areas of the cable-carrier, which may be used for the installation of a cable or cable-carrier.

Further details, features and advantages of the invention are given in the following description of examples of embodiments based on the drawing:Fig. 1 shows a perspective representation of a first embodiment of a rope brake system according to the invention,Fig. 2 a representation of a second embodiment of the rope brake system according to Fig. 1,Fig. 3 a drawing of the rope brake system according to Fig. 2 andFig. 4 a cross-sectional representation of the rope brake system according to Fig. 3 along the lines A-A in Fig. 3.

The structure of the rope brake system 1 according to the invention is shown in Figures 1 to 4. In Figure 1 an embodiment of the rope brake system 1 is shown, which has a first, second and third clamping device 13, 15 and 18 respectively, which is formed as a single clamping device in this embodiment.

In contrast, Figures 2 to 4 show an embodiment in which the above-mentioned clamping devices 14, 15 and 18, described in detail below, are formed as two-piece arrangements. As explained at the outset, it would also be possible in principle to provide for several clamping elements per clamping device, with no differences in basic construction between the embodiment in Figure 1 and those in Figures 2 to 4, so that the structure and functioning of the rope brake assembly of the invention, taking into account the illustrations in Figures 1 to 4, are described below.

Accordingly, the rope brake application 1 of the invention has a frame 2 which has a first rope connection element 3 at a first frame end area 4. As the figures show, this rope connection element 3 is formed as a rope shackle which is fixed in the example case by a hole in a connecting plate 2C of the frame 2. A second frame end area 12 is provided on the first frame end area 4 on the opposite side of the frame 2 in which a second rope connection element 10 is located, also formed as a rope connection element. The two rope connection elements 3 and 10 are intended to disassemble the rope connection element 1 into a burning device or to dispose of a fire suppression device, respectively, which is used in the installation of the rope application 1.

The rope brake system 1 also has a cylinder 5 also called a boller, which is fixed in frame 2. In the figure, this frame has two parallel spaced side plates 2A and 2B, connected by four transverse connecting elements 2C to 2F. The connecting element 2C is formed as the previously described connection plate, which may be welded at its ends to the side plates 2A and 2B.

The other transverse connecting elements are three connecting bolts 2D, 2E and 2F, with the 2D connecting bolt located in the end zone 4 of frame 2, e.g. below the connecting plate 2C.

In the opposite end zone 12, the other two connecting bolts 2E and 2F are also placed on top of each other and at a distance from each other. The connecting bolts 2D to 2F can also be welded with the two side plates 2A and 2B. In principle, other connecting devices are also conceivable, such as screws.

The brake system also has a winding system, which is indicated in its entirety by reference 6. In the example case, the winding system 6 is a rope system with a first free end zone 7 and a second end zone 8 fixed on frame 2 and a winding zone 9 between these end zones 7 and 8. The winding zone 9 has, in the embodiment 4 shown in the figures, winding systems which revolve 360° around pole 5 and which, before applying force, as shown in particular in Figures 1 and 2, either rest only loosely on pole 5 or are even at a certain distance from pole 5 so that the application of a seaworthy force on the winding system 1A does not have to be selected between the winding system 9A and the winding system 5A.

The arrangement on the polymer 5, the surface of which may preferably be coated with a friction-enhancing coating, and the enclosures 9A to 9D is a dampening device which, as explained at the outset, decomposes energy through friction and the heat produced.

The rope brake lining 1 also has, as explained above, a first clamping device 13 located on the frame 2 adjacent to the second frame end zone 12 This first clamping device 13 attaches a first clamping area 14 of the winding rope 6 to the frame by means of an adjustable force which is a trigger force, until overcome by rope forces of the structure in which the rope brake lining 1 is integrated, preventing a force transfer to the winding rope 9.

As shown in Figures 1 and 2, the first clamping area 14 of the winding system 6 is adjacent to the second frame-end area 12 and is further arranged between a connection area 11 of the winding system 6 and the bollards 5, whereby in the particularly preferred embodiment shown in Figures 1 and 2, the connection area 11 is preferably curved in a semicircular manner and runs from an end area 8 fixed to the frame in an arc to the clamping area 14, as shown in the drawing of Figures 1 and 2.

The rope brake application 1 also has a second clamping device 15 which attaches a second clamping area 16 of the free end area 7 adjacent to the first frame end area 4 of the frame 2 to it by means of an adjustable force representing the braking force of the rope brake application 1 of the invention.

A third clamping device 18 is also provided to secure the second end zone 8 of the enclosure arrangement 6 by means of an adjustable force on frame 4 representing the drawbar pull which allows the indicator field 22 to change position when the desired drawbar pull is reached.

As shown in Figures 1 and 2, the first free end zone 7 and the second end zone 8 of the clutch assembly 6 are each fitted with a contact patch 19 or 17 to prevent the respective end zones from being pulled through by the clamping device 15 or 18, respectively.

As can be seen in particular from an overview of Figures 1, 2 and 4, the connection area 11 of the circuit arrangement 6 is guided by a conductor 20 preferably circularly oriented, which also has a preferably circular conductor 21 into which the connection area 11 intervenes, as is shown above all by the illustration in Figure 4.

The invention is thus an energy absorbing device based on the conversion of kinetic energy into frictional heat, which operates in tension between two points of contact within at least one string of rope subjected to a load.

It preferably has two main functions: firstly, the collar frame 2, which acts as a component carrier, and secondly, the enclosure unit 6, through which the active motion energy is transferred to the collar 5 and, by friction, converted into heat energy.

The pulley frame 2 may have one or more panels or plates made of suitable materials on which both the individual components, i.e. the pulley 5, the trigger adjustment device 13, the separate brake adjustment device 15, the pre-tension indicator 22, and the connection area 11, which may be designed as a single or multiple suspension, are attached to the coupling unit 6; the pulley frame 2 is connected directly to the drawbar by one end 2C and only indirectly to the drawbar by means of the coupling unit 6.

The ring unit 6 may have one or more ropes or other suitable bending components, which may be made as bands, wires or ribbons, and which are passed through the poller frame 2.

The winding unit 6 can be connected to the drawstring either directly (i.e. 1:1) or by means of multiple suspension (i.e. 2:1 or more) with one end. From there the winding unit is led through the clamping device 13 through which the trigger force of the catching device can be pre-set to a variable degree. After passing through the clamping device 13, the winding unit 6 encircles the pole 5 one or more times, where the kinetic energy acting is converted into heat energy by friction.

In addition to the above written disclosure of the invention, the graphic representation of the invention in Figures 1 to 4 is explicitly referred to in this application to supplement the disclosure content.

It should be noted that, in addition to the three-dimensional structure of the 2A and 2B side panels with the 2C to 2F connecting elements shown in Figures 1 to 4, the 2 frame can also be formed as a flat plate, preferably with a central aperture into which the 5 pole can be placed and fixed at the end.

List of reference marks

1Rope brake arrangement (catching device) 2 Frames2A,B Side plates2C Connecting plate2D F-arranged connecting bolts3 First rope connecting element4 First frame end area5 Poller/cylinder6Circle arrangement, preferably as a bending rope7Free first end area of 68Free second end area of 69Circle area9A-DU loops10Second rope connecting element11Circle area12Second frame connecting area13Clamping direction (single or double or multiple)14First clamping device15Second clamping device (single or double or multiple)16Second clamping device17Second clamping device (single or multiple)18Second clamping device (single or multiple)

Claims (17)

1. The brake system shall be so designed that the brake system is capable of operating at a speed of not more than 100 km/h. Other

   - with a frame (2) having a first cable connection element (3) at a first frame end zone (4),

   marked

   - by a poller (5) fixed to the frame (2),

   - by means of a flexible winding device (6) or several flexible winding devices (6), having a first free end (7) and a second end (8) fixed to the frame (2), and a winding area (9) arranged between the end areas (7, 8) which encircles the pole (5) at an angle of 360° or an integer multiple thereof,

   - by a second cable connection element (10) which intervenes in a connection area (11) of the ringing device (6), the connection area (11) being adjacent to a second frame-end area (12) of the frame (2),

   - by a first clamping device (13) located on the frame (2) adjacent to the second frame end area (12) and which fixes a first clamping area (14) of the winding device (6) located between the connection area (11) and the bollar (5) by means of an adjustable trigger force on the frame (2), and

   - by a second clamping device (15) which attaches a second clamping area (16) of the free end area (7) adjacent to the first frame-end area (4) of the frame (2) by means of an adjustable brake force.
2. The service braking system shall be so designed that the service braking system is capable of operating at a speed of not more than 100 km/h.
3. The service braking system shall be so designed that the service braking system is capable of operating at a speed of not more than 100 km/h.
4. Rope brake system according to one of the claims 1 to 3 characterised by the first free end zone (7) of the ring system (6) having a contact (19)
5. Rope brake system according to one of the claims 1 to 4 characterised by the looping (9A to 9D) of the looping system (6) in front of a force applied at a distance around the axle (5) or loosely on the axle (5).
6. Rope brake system according to one of the claims 1 to 5 characterised by the direct connection of the ring system (6) to a drawbar in its second terminal area (8).
7. Rope brake system according to one of the claims 1 to 5 characterised by the connection of the winding system (6) to a drawbar in its second end zone (8) by means of a connection zone (11) designed as a double or multiple suspension.
8. Rope brake system according to one of the claims 1 to 7 characterised by the frame (2) and/or the bollards and/or the winding system (6) being made of grey cast iron, steel, rigid non-ferrous parts, UV resistant man-made fibres, UV protected man-made fibres, carbon fibres and/or stone/mineral fibres.
9. Rope brake arrangement according to one of the claims 1 to 8, characterised by the frame (2) having two parallel side plates (2A, 2B) between which the pulley (5) is placed and to which the pulley (5) is fixed.
10. Rope brake arrangement according to claim 9, characterised by the side plates (2A, 2B) being connected by means of connecting elements (2C to 2F) arranged transversely to the side plates (2A, 2B).
11. Rope brake arrangement according to claim 10, characterised by one of the coupling elements (2C to 2F) being a coupling plate (2C) to which the first rope coupling element (3) is attached.
12. Rope brake arrangement according to claim 10 or 11, characterised by the addition of three connecting bolts (2D to 2F) to the coupling elements, with the coupling plate (2C) and a first connecting bolt (2D) located in the first frame end zone (4) and a second and third connecting bolts (2E, 2F) located in the second frame end zone (12).
13. Rope brake system according to one of the claims 1 to 12 characterised by the connection area (11) of the locking system (6) being guided by a guide element (20), preferably circular.
14. The service braking system shall be so designed that the service braking system is capable of operating at a speed of not more than 100 km/h.
15. Rope brake arrangement according to one of the claims 1 to 8, 13 or 14 characterised by the frame (2) being formed as a flat plate with a preferably central exception in which the pulley (5) is located.
16. Rope brake application according to one of the claims 1 to 15 marked by the colour-coded marking of the indicator field (22).
17. Use of a rope braking system according to any of claims 1 to 15 to secure the release, support or support ropes of a rock-fill net, a drift net, an avalanche fence, a snow structure, an elevator or a cableway.