The subject matter of the invention is the method of independent control of the line that is used for lifting and lowering a load—hereinafter referred to as: the load lifting/lowering line—or the main line in each carriage in the system of cableway carriages which are driven by an endless or a movable line that rotates or moves in the same direction, which can be optional according to the needs. Each cableway carriage contains a drum which is controlled independently in superimposed time while the operation of each cableway carriage is independent from that of the other carriages in the system of cableway carriages. The method of independent drum control in individual cableway carriages in superimposed time by means of an endless or movable line can mainly be used in the field of special devices with an energy accumulator, which are called RELAZ. The invention can also be widely applied in the field of long distance cableways, curved cableways, and when several cableway carriages are used on one cableway or more cableways, which is suitable for load transport in the fields of forest management, agriculture, civil engineering and cableway transport in general.
Existing well-known standard methods of the load lifting/lowering line or the main line drum control do not allow an effective operation of more carriages in superimposed time on the skyline or more skylines, or on one cableway or several cableways which are driven by an endless line or by a movable line. The existing well-known standard solutions in the area of drum control do not allow an independent use of the main operation of the drum, the brake mode of the drum and the reverse mode of the drum in connection with unwinding and winding of the load lifting/lowering line or the main line from/onto the drum in more carriages, in such a way that each carriage in the system of cableway carriages is driven by one and the same endless line without the change in rotation direction or movement in the, endless line system. The existing well-known methods of drum control for active unwinding and winding of the load lifting/lowering line or the main line do not allow the independence of each cableway carriage from the other cableway carriages which are driven by an endless line or a movable line.
Today, there exists a solution according to PP 37-2088, which is called Mechanical Recuperation Cableway Device with Added Sectional Counterweight and Gravitational Cableway Carriage. In this technical solution, the drum of the load lifting/lowering line or the main line in the carriage is controlled by one endless line; however, this does not enable effective independent control of the drums in individual parts of the carriage during endless line rotation or movement in one direction in the endless cableway system.
This solution and all the existing methods of drum control do not allow effective control of the drum for unwinding and winding of the line load lifting/lowering line or the main line, and do not facilitate effective operation of several cableway carriages on a cableway in superimposed time, in such a way that the carriages are driven by an endless line or by a movable line, which moves in the same direction. This direction can be optional according to the needs, while each carriage in the cableway carriage system works effectively and independently from the other carriages in the system of cableway carriages.
The subject matter of the invention is a method for controlling the drum of the load lifting/lowering line or the main line in each cableway carriage in a system of cableway carriages. These cableway carriages operate on one or several skylines or on one cableway or several cableways, are driven independently and their functions are supported by the motion of an endless or movable line. The endless line in an endless cableway system or the movable line in a cableway system rotates or moves only in one direction, which can be arbitrary, according to the needs. One endless line or a movable line, which rotates or moves in a cableway system in the same direction according to the needs, provides the drive of drums by means of a disconnectable sheave in all cableway carriages through which the endless line or the movable line passes. The disconnectable sheave is provided with a parabolic groove.
The rotation of the disconnectable sheave, always rotating in the direction of the endless or movable line rotation or movement, is in each cableway carriage in a cableway carriage system actuated by means of the endless line or the movable line. The main operation of the cable drum, the neutral operation of the carriage or the brake mode of the drum, and the reverse mode of the drum in each cableway carriage in the cableway carriage system are actuated by the rotation or movement of the endless or movable line, which rotates or moves only in one direction, arbitrary according to the requirements. The main operation of the drum in the cableway carriage is actuated when the drum of the load lifting/lowering line, or the main line is rotating in the same direction as is the direction of the disconnectable sheave rotation and the direction of the rotation of the endless line in the endless cableway system or the movable line in the cableway system. The brake mode of the drum in the cableway carriage is achieved when the endless line in the endless cableway system or the movable line in the cableway system rotates or moves, and the drum of the load lifting/lowering line or the main line drum is locked. The brake mode of the drum is realized during the neutral mode of the carriage. The reverse mode of the drum in the cableway carriage is achieved when the drum of the load lifting/lowering line or the main line drum rotates in the opposite direction to the direction of the disconnectable sheave rotation and also to the direction of the endless line rotation in the endless cableway system or the movable line rotation in the cableway system. In each carriage in the system of cableway carriages the main operation of the cable drum, the brake mode of the drum or the neutral mode of the carriage and the reverse mode of the drum are realized according to the needs, independently from the other carriages. In this way, effective operation of several cableway carriages in the system of cableway carriages in superimposed time is assured by means of the endless or the movable line, which rotates or moves always in one direction, which may be arbitrary according to the requirements.
The main operation, the brake mode and the reverse mode of the drum control the unwinding and winding of the load lifting/lowering line or the main line from/onto the drum in each cableway carriage independently in the entire system of cableway carriages. The system of cableway carriages is controlled by the movement of the endless or the movable line that moves in one direction, which can be arbitrary according to the needs in the cableway system. The unwinding and winding of the load lifting/lowering line or the main line depends on the direction in which the load lifting/lowering line or the main line is wound on the drum. During the neutral operation of the carriage or the brake mode of the drum, unwinding and winding of the load lifting/lowering line or the main line from/onto the drum in the carriage is not performed. The endless cableway system or the cableway system with a movable line is tensioned to the necessary assembly tension using an appropriate means.
As for the type of construction, the drum for unwinding and winding of the load lifting/lowering line or the main line can be manufactured as any device for any line which serves for unwinding and winding or it can also be a winding device, a winch, and the like.
According to the invention, the advantage of this method is that unwinding of the line from the drum in the carriage enables active drawing out of the free end of the load lifting/lowering line or the main line from the carriage. Each carriage in the system of cableway carriages can perform the function of active drawing out of the free end of the line load lifting/lowering line or the main line from the carriage.
As for the type of construction, the cableway carriage can be a carriage for a forest cableway or a carriage for any other cableway.
The independent drum control in the system of cableway carriages in superimposed time is achieved by the rotation or movement of the endless line in the endless cableway system or by the movement of the movable line in the cableway system. When using the endless line or the movable line for independent control of drums in each carriage in the system of cableway carriages, the endless line or the movable line in the drive aggregate passes through a sheave or sheaves or through an appropriately adapted winding device.
In on of the versions, when using the endless line or the movable line for independent control of drums in each carriage in the system of cableway carriages, the movable line in the drive aggregate passes through a winding device or devices. In another version, the movable line in the line system moves so that it unwinds from one winding device and winds onto the second winding device and/or the other way round. The guidance and drive of the endless line or the movable line can be realized by various means, according to the needs.
The above mentioned facts indicate that the method of independent control of the drum of the load lifting/lowering line or the main line in each carriage in the system of cableway carriages in superimposed time by means of an endless line or a movable line in a cableway system, which rotates or moves, in one direction, which can be arbitrary according to the needs, has a wide application. The possibilities for the use of this method do not limit the range of the utilization of the invention.
The attached drawings illustrate the method for the control of the drum of the load lifting/lowering line or the main line in each carriage in the system of cableway carriages. These carriages are driven by an endless line or a movable line which rotates or moves in the same direction which can be arbitrary according to the needs, so that in each carriage the drum is independently controlled in superimposed time, while the operation of each cableway carriage does not depend on the operation of the other carriages in the system of cableway carriages.
FIG. 1—illustrates the method of independent control of the drum of the load lifting/lowering line or the main line in each carriage in the system of cableway carriages,
FIG. 2—illustrates the method of independent control of the drum of the load lifting/lowering line or the main line in each carriage in the system of cableway carriages on one skyline,
FIG. 3—illustrates the method of independent control of the drum of the load lifting/lowering line or the main line in each carriage in the system of cableway carriages on several skylines.
The advantage of the independent control of the drum of the load lifting/lowering line or the main line in every carriage in the system of cableway carriages by means of the endless line or the movable line which rotates or moves always in one direction, optional according to the requirements, is effective work of several carriages in superimposed time.
The main operation, the brake mode and the reverse mode of the drum can be provided independently according to the requirements in each cableway carriage in the cableway carriage system during the rotation or movement of the endless line or the movement of the movable line in one direction which is optional according to the needs. In this case, the reverse system for the endless line in a driving aggregate can be left out and the direction of the rotation or movement of the endless line in the endless cableway system assuring the unwinding and winding of the load lifting/lowering line or the main line from/onto the drum in the carriage does not require any change.
The advantage of this method according to this invention is that the movement of the endless or the movement of the movable line in the cableway system controls the unwinding and winding of the load lifting/lowering line or the main line independently in all cableway carriages on one or more cableways. Another advantage is that the unwinding of the line from the drum in the carriage allows active drawing out of the free end of the load lifting/lowering line or the main line from the carriage. Every carriage in the system of the cableway carriages has the function of active drawing out of the free end of the load lifting/lowering line or the main line from the carriage.
The advantage of this method according to the invention is that the rotation or movement of the endless line or the movement of the movable line in the cableway system controls the dragging, lifting or lowering of the load independently in all carriages on one or more cableways.
Each cableway carriage works effectively and independently from the other cableway carriages in the system of cableway carriages. Therefore, the direction of the drum rotation and thereby the independent control of unwinding and winding of the load lifting/lowering line or the main line which is wound on the drum is effectively controlled in each cableway carriage in the cableway carriage system according to the needs.
The advantage of this method according to the invention is that it can be used to control more cableway carriages on one or more cableways. This method can also be used on long cableways or curved cableways.
This invention can be effectively used for dragging, lifting, lowering, skidding or transport of wood, trees, construction material or other materials and loads in general. The invention can be effectively used in the area of forest cableways or in the area of other cable installations or in the area of lifting installations in general.
For reasons given above, the method of independent control of the drum of the load lifting/lowering line or the main line in each cableway carriage in the cableway carriage system in superimposed time by means of an endless or movable line which rotates or moves in one direction, optional according to the needs, can have many applications. The ways of use of this method do not limit the range of the utilization of the subject matter of this invention.
Number | Date | Country | Kind |
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PP 146-2010 | Nov 2010 | SK | national |
Filing Document | Filing Date | Country | Kind | 371c Date |
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PCT/SK11/50018 | 11/15/2011 | WO | 00 | 5/15/2013 |