CN111465570A

CN111465570A - Fixing and tensioning device for guide ropes of a conveying installation

Info

Publication number: CN111465570A
Application number: CN201880080232.9A
Authority: CN
Inventors: S·松内博恩; C·弗兰克; A·贝克尔; C·基尔希霍夫; K·洛茨维
Original assignee: Siemag Tecberg GmbH
Current assignee: Siemag Tecberg GmbH
Priority date: 2017-12-13
Filing date: 2018-11-16
Publication date: 2020-07-28
Also published as: EP3704050A1; WO2019115150A1; EA202091225A1; DE102017129772A1

Abstract

In order to fix the guide line in a preferably vertical well, the guide line (1) is diverted from the vertical above by a diverting device (2) and held by means of an intercepting clamp (4). A tensioning device (7) which is preferably movable and has a further cable holder generates the required pretensioning force.

Description

Fixing and tensioning device for guide ropes of a conveying installation

Technical Field

The invention relates to a fixing and tensioning device for a guide rope of a conveying installation in a vertical or inclined shaft, as described in the preamble of independent claim 1.

Background

As a result of efforts to reduce the costs involved in the construction of the conveying device, it is worldwide the case that different functions of the shaft conveying system are grouped together in the same spatial plane.

In this connection, rope handling plays an important role in particular, since losses in transport time can be reduced to a minimum by means of elaborate technology.

However, safety functions, such as reliable guidance of the conveying element in the well, are also considered at the same time.

Here, the fixedly installed shaft guide system (sprilatten system) differs from the guide line system.

A sufficient pretensioning of the guide rope must be ensured, so that the guide rope system can perform its task as intended.

The pretensioning can be achieved on the one hand by a weight suspended on the guide line (downhole) and on the other hand by tensioning of the guide line (uphole).

In the case of guide rope tensioning, it is known, for example, to use a guide rope tensioning device with an associated guide rope holder, which is usually arranged vertically or in a longitudinal rope orientation without the guide rope being deflected out of the longitudinal well direction.

The tensioning device causes the guide rope in the well to produce the required pretension by pulling, while the guide rope clamp subsequently grips the rope, which then prevents the rope from being pulled tight after the tensioning device is released and the pretension is maintained.

Both functions of tensioning and holding can also be achieved by means of a clamp with integrated tensioning possibilities.

The measuring device inserted between the guide rope clamp and its support device can acquire and analyze the actual rope pretension, so that corresponding measures can be taken in time when non-uniformity occurs.

This compensation measure is often required, in particular when using new guide ropes, in order to compensate for the loss of pretension due to the placement of the guide ropes. The time interval between the required compensation measures is usually smaller and smaller during the lifetime.

Since the conveyor line (upper line) and the guide line of the conveyor element are spatially close to each other, the deflector plate and the guide line fastening or tensioning system can interfere with each other, so that additional levels or additional structural heights in the conveyor tower or mast are required, which has a negative effect on the construction costs, maintenance and service.

Likewise, the use of the tensioning and lifting device and the vertically arranged guide rope fixing and tensioning system on the same plane in the transport tower or derrick are mutually exclusive.

Disclosure of Invention

Therefore, a need arises for a solution for an assembly of the type which eliminates the mentioned problems and which is as simple, flexible and efficient to install and maintain as possible.

This problem is solved by an assembly according to independent claim 1, wherein suitable embodiments are indicated by the features of the dependent claims.

The securing and tensioning device for the guide ropes of a shaft conveyor in a vertical or inclined shaft is provided to generate, maintain and adapt a pretensioning force in at least one guide rope for a rope-guided conveyor, wherein the securing and tensioning device is characterized according to the invention in that the tensioning plane of the assembly is arranged at an angle relative to the extension of the shaft. Particularly preferably, the tensioning plane of the assembly is arranged substantially horizontally here.

The required vertical position requirement of the overall system can be minimized by using an angled or horizontally arranged guide rope fixing and tensioning device for the guide rope. This provides advantages in particular in tower assemblies of conveyors with deflection disks, since the conveying and guiding systems can be arranged spatially independently of one another.

By using an angled or horizontally arranged guide rope fixing and tensioning system, the necessary free space can be established both for the deflection disc and for the use of tensioning and lifting equipment or other equipment.

For this purpose, the guide rope is fixed in the region of the well socket (Schachtsumpf) and is guided vertically upwards through the well. On the guide rope tension plane in the transport tower or derrick, the rope is once diverted by means of a steering wheel and guided onto the assembly according to the invention. To this end, according to the invention, the assembly is provided with a rope diverting device for diverting the at least one guide rope from the well plane into the tensioning plane. Here, the rope deflection device can be embodied rotatably about a fixed shaft or fixedly connected with a rotary shaft in order to minimize the friction losses between the rope and the disc.

In the special case where pretensioning of the guide line should or must be achieved in the well and, for example, due to unfavorable rock properties, a sufficiently deep cut cannot be achieved for arranging the tensioning weight or the vertically arranged tensioning device, the guide line fixing and tensioning system according to the invention, which is arranged at an angle or horizontally, is considered for the displacement of the guide line downhole or in the well.

Preferably, the assembly is provided with a guide rope clamp or intercept clamp arranged in the tightening plane, which securely clamps and holds the rope in its position.

The horizontally connected rope tensioning device, which is also preferably provided, takes over the required pretensioning force in the rope during the pretensioning process.

In this case, it is also preferred that the cable deflection device and the intercepting clamp are fastened to the same support, wherein the position of the intercepting clamp is preferably changeable in the clamped and in the opened state with respect to the support. The change of the position of the intercepting clamps can be performed hydraulically, pneumatically or electrically.

Furthermore, the device according to the invention is preferably provided with a guide device in which the intercepting clamp is arranged relatively movably with respect to the support in the tensioning direction of the guide rope.

In a particularly preferred embodiment, the tensioning device can be configured separately from the fixing device, from which it can be configured removably, preferably movably, for use on different guide lines of one or more guide line sets. The removable tensioning device can be designed centrally on the support.

Preferably, the end of the at least one guide cable to be tensioned is guided by a cable loop or by a casting head, wherein the cable loop or the casting head can be connected to a transverse yoke (Querjoch).

The position of the transverse yoke can be configured in a variable manner with respect to its position in the longitudinal direction with respect to the guide rope, wherein a change in the position of the transverse yoke can be effected hydraulically, pneumatically, electrically or in another manner, and wherein the position of the transverse yoke in the longitudinal direction with respect to the guide rope can preferably be blocked by means of a spacer.

Furthermore, the assembly can be designed such that a load measuring device is integrated between the catch clamp and its support device for measuring the cable load of the guide cable and for detecting the currently set pretensioning force.

In a further variant, the entire assembly can be completely or partially installed in the ground in order to further reduce the structural height and to optimize the serviceability of the platform provided in the assembly.

Drawings

Further characteristics and advantages of the invention emerge from the following purely exemplary and non-limiting description of different embodiments of the invention, with reference to the figures or diagrams. In particular, the features of the different embodiments can also be combined with one another. Herein, like reference numerals denote like elements in the drawings. Here:

fig. 1 shows an exemplary embodiment of a fixing and tensioning device according to the invention of a guide rope in a hoistway transport installation in a three-dimensional representation.

FIG. 2 shows a side view of the embodiment according to FIG. 1

FIG. 3 shows a top view of the embodiment according to FIG. 1

FIG. 4 shows an alternative embodiment with a coupling device and a rope loop

Detailed Description

As can be seen in fig. 1, in the embodiment shown of the fixing and tensioning device for a guide rope of a transport installation in a shaft or inclined shaft, the guide rope 1 is diverted from the shaft plane by a vertical orientation in the shaft by about 90 ° to the fixing and tensioning device by means of a rope diverting means 2, here embodied as a rotatable rope sheave.

The rope hold-down device 3 guides the rope centrally into a horizontally arranged guide rope clamp or interception clamp 4, in which the guide rope 1 is securely clamped and thereby held in position by a wedge 4 a.

A measuring device 5 can also be seen, which enables monitoring of the existing cable pretension and which is arranged in the illustrated embodiment between the support 6 and the guide cable clamp or catch clamp 4.

A movable tensioning device 7, which is separate from the fastening device and is arranged centrally on the fastening device with respect to the guide rope 1 by means of a centering device 8, can also be seen.

The jaws 9a of the tensioning clamp 9 are guided in the guide 10 and grip the movable end of the guide rope 1. In the embodiment shown, the tensioning clamp 9 is moved by means of a hydraulic cylinder 9b against the abutment and in this way tensions the clamped movable end of the guide rope 1.

The movement of the gripper jaws 9a is effected by means of the tensioning clamp guide 10. By this movement, the wedge 4a of the rope intercepting jig 4 is loosened, and the tightening jig 9 takes the rope tension.

After the required pretension or the required tensioning path is reached, the rope intercepting clamp 4 again takes up the load of the guide rope 1.

After the end of the work, the tensioning device 7 can be removed by means of the transport device 11.

The movable cord end can be securely fixed by means of a simple (not shown) cord fixing device.

The entire apparatus may be fully or partially encased in the ground.

Fig. 4 shows an alternative embodiment of a securing and tensioning device for a guide rope of a conveying installation in a vertical or inclined shaft.

Here, a support device (verlageung) 16 arranged in the ground 14 is visible, which, in addition to the deflecting rollers 18 for deflecting the guide ropes 20, also receives a support frame 22. In this embodiment, the guide rope 20 is fastened in a rope loop 24 which is connected to a coupling device (versteckvorichhtung) 26 which is held in the support frame 22 by

stops

28 and 30. The guide rope 20 fastened in the rope loop 24 is tensioned and fastened by means of a hydraulic cylinder 32 supported on a stop 30, which cylinder moves the hitch device 26. In the embodiment shown, a weighing cell 36 is also provided between the stop 28 and the coupling device 26 or a spacer block 34 arranged therebetween, by means of which the load of the guide rope 20 can be measured.

Of course, combinations of the elements of the embodiments shown in fig. 1 to 3 and 4 are also conceivable.

Claims

1. Fixing and tensioning device for guide ropes of a hoistway transport installation in a vertical or inclined shaft for generating, maintaining and adapting pretensioning in at least one guide rope (1, 20) of a rope-guided transport element, characterized in that the tensioning plane of the assembly is arranged at an angle with respect to the extension of the shaft.

2. The assembly of claim 1, wherein the tensioning plane of the assembly is arranged substantially horizontally.

3. An assembly according to claim 1 or 2, characterized in that the assembly is provided with a rope diverting device (2, 18) for diverting the at least one guide rope (1, 20) from the well plane into the tightening plane.

4. Assembly according to claim 3, characterized in that the rope diverting means (2, 18) are implemented rotationally around a fixed shaft.

5. Assembly according to claim 2, characterized in that the rope steering (2, 18) is fixedly connected with a rotating shaft.

6. Assembly according to any one of the preceding claims, characterized in that it is provided with an interception jig (4) by means of which the guide rope (2) is guided and intercepted.

7. Assembly according to claim 6, characterized in that said rope diverting means and said intercepting clamp (4) are fixed on the same seat (6).

8. Assembly according to claim 6 or 7, characterized in that the position of the interception gripper (4) with respect to said support (6) is variable in the clamped condition and in the open condition.

9. Assembly according to claim 8, characterized in that the change of position of the interception gripper (4) is carried out hydraulically, pneumatically or electrically.

10. Assembly according to any one of claims 8 or 9, characterized in that it is provided with a guide device in which the intercepting clamp (4) is arranged relatively movable with respect to the abutment (6) in the tightening direction of the guide rope (1).

11. An assembly according to any one of the preceding claims, characterized in that the tensioning device (11) is constructed separately from and removable from the fixing device.

12. An assembly according to claim 11, characterized in that the tensioning device (11) is movably configured for use on different guide ropes (1) of one or more guide rope sets.

13. Assembly according to claim 11 or 12, characterized in that the removable tensioning device (11) can be constructed centrally on the support (6).

14. Assembly according to any one of the preceding claims, characterized in that the ends of the at least one guide rope (1, 20) are guided by rope loops.

15. Assembly according to any one of claims 1 to 13, characterized in that the ends of the at least one guide rope (1, 20) are guided by a casting head.

16. The assembly of claim 14 or 15, wherein the rope loop or the casting head is connected with a transverse yoke.

17. The assembly of claim 16, wherein the position of the transverse yoke is changeable in its position in the longitudinal direction with respect to the guide rope.

18. The assembly of claim 17, wherein the change in position of the transverse yoke is generated hydraulically, pneumatically, electrically, or otherwise.

19. Assembly according to claim 18, characterized in that the position of the transverse yoke in the longitudinal direction in relation to the guide rope (1, 20) can be stopped by means of a spacing block (34).

20. Assembly according to any one of the preceding claims, characterized in that a load measuring device (34) is integrated between the intercepting clamp and its carrying device for measuring the rope load of the guide rope (1, 20).