JP4386223B2 - Automatic circulating cableway tensioning device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a tensioning device for keeping the tension of a rope constant in an automatic circulation cableway.
[0002]
[Prior art]
The automatic recirculating cableway stretches endlessly between the pulleys arranged at the stops at both ends, and supports a carrier equipped with a gripper capable of gripping and unloading the rope. It is a transportation facility that transports people or things along with the circulation of ropes, and is widely used mainly on slopes such as mountainous areas.
[0003]
In the automatic circulation type cableway, the gripping machine unloads the rope in the stop, is guided by an elevated rail laid in the stop, and is sent at a slow speed, during which the passenger gets on and off the carrier. Thereafter, the grappler seizes the cable and starts again into the cableway. In this way, a plurality of carriers are operated one after another for transportation.
[0004]
7 and 8 are a front view and a plan view showing a stop of the automatic circulation type cableway. In the figure, the rope 1 is led from the cableway 2 into the stop 3, wound around the pulley 4 through the vicinity of the release position A, turned back, and again led to the cableway 2 through the vicinity of the gripping position B. ing. A U-shaped rail 5 is disposed outside the rope 1 and the pulley 4, and a feeding device 7 for transporting the carrier 5 is disposed along the rail 5.
[0005]
In the stop 3 thus constructed, when the transporter 6 suspended from the rope 1 enters the stop 3 from the direction of the arrow G, the gripping machine provided in the transporter 6 is transferred to the rail 5 at the release position A. The cable 1 is released, and then the carrier 6 rolls along the rail 5. Subsequently, the transporter 6 is gradually decelerated from the speed of the rope to the slow speed by the pushing device 7 in the deceleration section C, and the transporting section 6 and the boarding section F are forwarded and transported at a slow speed while passengers and the like get on and off. I do. Next, the transporter 6 turned to the departure side is accelerated from the slow speed to the same speed as the ridge 1 in the acceleration section D, and detached from the rail 5 after the squeezing of the ridge 1 at the grasping position B. Then, it hangs on the rope 1 again and departs on the cableway 2 in the direction of arrow H.
[0006]
By the way, in such an automatic circulation type cableway facility, it is necessary to provide a tensioning device for keeping the tension of the rope 1 constant in at least one of the anchorage facilities. That is, in the rope 1, changes in the load suspended in the cableway 2, expansion / contraction due to temperature fluctuations, and distraction due to aging, etc. occur. A tensioning device is provided so that the strip 1 is always stretched at a constant tension.
[0007]
7 and 8 show a stop having such a tensioning device, and tensions the rope 1 as follows.
[0008]
In the drawing, the pulley 4 is pivotally attached to the pulley shaft 9 of the sliding frame 8, and the sliding frame 8 slides between the front position I and the retracted position J along the guide rails 10 and 10. It is configured to slide with K. On the other hand, one end of hydraulic cylinders 11, 11 is connected to the sliding frame 8, and the other end of the hydraulic cylinders 11, 11 is connected to a machine foundation 12. A known hydraulic unit (not shown) is connected to the hydraulic cylinders 11, 11, and by applying a constant pressure generated by the hydraulic unit to the hydraulic cylinders 11, 11, the sliding frame 8 or the pulley 4 is moved. It is pulled backwards, and in this way the rope 1 is tensioned.
[0009]
In the tensioning device configured in this way, the required sliding distance K is such that the length of the track extension of the cableway is large, the span length of the strut supporting the cable 1 in the cable track is short, Depending on the load variation of the suspended carrying device 6 and the like, a considerable sliding distance K may be required depending on these conditions. In such a case, a required sliding distance K is secured by setting the backward position J of the pulley 4 to a position further backward.
[0010]
[Problems to be solved by the invention]
However, as described above, when the backward position J of the pulley 4 is set to the rearward position, the tensioning device must be lengthened by the length of the sliding distance K or more, and accordingly, The rail 5 arranged on the outside of the tensioning device must also be configured so as to be largely bypassed so that the transporter 6 rolling along the railing 5 does not interfere with the tensioning device.
[0011]
On the other hand, it is sufficient for the rail 1 to have a length necessary for passing through the carrier 6 at a required speed. That is, it is reasonable that the deceleration section C, the getting-off section E, the boarding section F, and the acceleration section D in FIG. 8 are configured with the minimum length necessary for each section to function. Increasing the length of the mechanical device by increasing the sliding distance K of the device causes an increase in scale or area required for the stop 3 and is not economical. In addition, in such cableway facilities that are often used on slopes such as mountainous areas, the necessity of a site for the long stop 3 requires a lot of construction or the installation of the facilities themselves. Sometimes impossible.
[0012]
Therefore, a compact and required sliding distance K is ensured so that even cableway equipment that requires a considerable sliding distance K can be configured with the minimum necessary scale or area without increasing the size of the equipment in the stop. A tensioning device that can be used was desired.
[0013]
The present invention has been made in view of the above circumstances, and is an automatic circulation that is compact and rationally configured without increasing the size of a stop machine even in a cableway that requires a considerable sliding distance. An object of the present invention is to provide a tensioning device for an expression cableway.
[0014]
[Means for Solving the Problems]
Corresponding to this purpose, the present invention is a tensioning device for keeping the tension of the rope constant at the stop of the automatic circulation cableway, and the tensioning device includes first and second movable pulleys. A sliding frame pivotally mounted on the same axis and supported so as to be slidable back and forth; a hydraulic cylinder for pulling the sliding frame interposed between the sliding frame and a fixed position; And a fixed pulley pivotally attached to a fixed position on the cable track line side of the second moving pulley, and the first and second moving pulleys are the introduction position of the rope in the first moving pulley and the second moving pulley. And the fixed pulley is inclined so as to guide the cable fed from the first moving pulley to the second moving pulley. The first and second pulleys are sequentially moved from the first pulley to the second pulley. Those configured as tensioning device for the automatic circulation cableway, characterized in that wound.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described in detail with reference to the drawings. FIGS. 5 and 6 are a front view and a plan view, respectively, showing the stop 3 of the automatic circulation type cableway equipped with the tensioning device 20 of the present invention.
[0016]
A rail 5 is elevated in a U shape in the stop 3, and a feeding device 7 for transporting the carrier 6 is provided along the rail 5. Inside the rail 5, a tensioning device 20 including moving pulleys 21 and 22 and a fixed pulley 23 is provided. The rope 1 is introduced in the direction of arrow G from the cableway 2 and is wound around the movable pulleys 21 and 22 and the fixed pulley 23 through the vicinity of the release position A, and then in the direction of arrow H through the vicinity of the gripping position B. It is led to the cableway 2. Here, although details will be described later, the movable pulleys 21 and 22 are slidable between the front position I and the reverse position J, and are configured to apply a constant tension to the rope 1.
[0017]
In the anchorage 3 configured in this way, when the cage 6 suspended from the rope 1 enters the anchorage 3 from the direction of the arrow G, the running roller provided in the rope gripper of the carrier 6 has a rail. After that, the transporter 6 rolls along the rail 5.
[0018]
The carrier 6 that moves at the same speed as the rope 1 is decelerated by the pusher 7 in the deceleration section C after the rope 1 is released at the release position A until it becomes slow. The lengths of the deceleration section C and an acceleration section D, which will be described later, are determined to be optimum lengths based on the safety of the transporter 6 that passes through these sections, the riding comfort, the performance of the pushing device 7, and the like.
[0019]
Next, the transporter 6 decelerated to a slow speed is forwarded and transferred to the unloading section E and the boarding section F while maintaining a constant slow speed, during which passengers and the like get on and off. The section lengths of the getting-off section E and the boarding section F are determined by the time required for getting on and off. That is, in the facility for operating the carrier 6 with a small number of passengers, the getting-off section E and the boarding section F are set to relatively short lengths, and the facility for operating the carrier 6 with a large number of passengers is routed over a longer distance. It is determined as follows.
[0020]
After the boarding, the carrier 6 is accelerated to the same speed as the ridge 1 in the acceleration section D, seizes the ridge 1 at the grasping position B, and departs to the cableway 2 in the direction of arrow H. In this way, a plurality of transporters 6 are operated sequentially.
[0021]
Next, the tensioning device 20 will be described in detail with reference to FIGS. Machine foundations 20 a and 20 b are formed on the floor surface of the stop 3, and the machine apparatuses such as the tension device 20 and the rail 5 are supported by the machine foundations 20 a and 20 b. Guide rails 10 and 10 are spanned between the machine foundations 20a and 20b and fixedly supported. The guide rails 10 and 10 are groove-shaped members, and the groove portions are arranged in parallel to face each other. The guide rails 10 and 10 are gently inclined so as to be high on the machine foundation 20a side and low on the machine foundation 20b side. Is located.
[0022]
A sliding frame 8 having movable pulleys 21 and 22 is suspended between the guide rails 10 and 10. Rollers 29, 29, 29, 29 are pivotally attached to the sliding frame 8, and the rollers 29, 29, 29, 29 are engaged with the groove portions of the guide rails 10, 10 and rolled. Thus, the movable pulleys 21 and 22 are configured to be slidable between the front position I and the reverse position J.
[0023]
One end of the hydraulic cylinders 11 and 11 is connected to the end of the sliding frame 8 on the machine foundation 20a side through the sliding frame member, and the other end of the hydraulic cylinders 11 and 11 is connected to the machine foundation. It is connected to a cylinder frame 24 that penetrates 20b and is fixed to the rear end surface of the machine base 20b. A known hydraulic unit (not shown) is connected to the hydraulic cylinders 11, 11, and a constant pressure generated by the hydraulic unit is applied to the hydraulic cylinders 11, 11, so that the sliding frame 8 or the movable pulley 21, 22 is pulled in the direction of the machine foundation 20b, and tension is applied to the rope 1 wound around the movable pulleys 21 and 22 in this way.
[0024]
Next, the attachment relationship between the movable pulleys 21 and 22 and the fixed pulley 23 will be described with reference to FIGS.
[0025]
A pulley shaft 26 is extended and fixed downward at the center of the sliding frame 8, and movable pulleys 21 and 22 having substantially the same diameter as the cableway width rotate independently of the pulley shaft 26. It is pivotally possible. The axis of the pulley shaft 26 is inclined in the width direction of the cableway, and the introduction position a of the rope 1 on the movable pulley 22 and the feeding position d of the rope 1 on the movable pulley 21 are the same height. It is made to become. In this way, by making the diameters of the movable pulleys 21 and 22 the same as the cableway width, it is not necessary to provide an extension wheel or the like for adjusting the rope 1 in the cableway width direction in the stop 3. It's good.
[0026]
Next, a fixed pulley 23 is disposed slightly above the movable pulleys 21 and 22 in the machine foundation 20a. A pulley frame 25 is fixed to the side surface of the machine foundation 20a on the cableway 2 side, and a pulley shaft 27 is extended and fixed to the pulley frame 25 upward. A fixed pulley 23 having a smaller diameter than the movable pulleys 21 and 22 is rotatably attached to the pulley shaft 27. As shown in FIG. 4, the shaft core of the pulley shaft 27 is inclined more in the cableway line width direction than the shaft core of the pulley shaft 26.
[0027]
The rope 1 is wound around each pulley arranged as described above as follows. The rope 1 introduced from the cableway 2 into the stop 3 is stretched horizontally to the vicinity of the release position A, and after passing through the release position A, a plurality of pieces installed in the stop 3 .. Are guided downward by the receiving rings 28, 28,... And wound around the moving pulley 22 through the introduction position a of the moving pulley 22. In this way, by turning the rope 1 downward, the movable pulleys 21 and 22 are positioned below the height of the rail 5, and even when the movable pulleys 21 and 22 are at the front position I, the transporter It is possible for the six grinders to pass through without interference.
[0028]
Next, the rope 1 wound around the movable pulley 22 is drawn out from a position b slightly lower than the introduction position a due to the inclination of the movable pulley 22, and is introduced into the fixed pulley 23 located slightly above the front, It is wound around the fixed pulley 23. At this time, the inclination angle θ of the rope 1 stretched between the feeding position “a” of the moving pulley 22 and the introduction position “e” of the fixed pulley 23 is the same as the inclination angle when introduced into the moving pulley 22. In addition, the inclination angle of the rope 1 between the feeding position f of the fixed pulley 23 and the introduction position c of the movable pulley 21 described later, and the inclination angle of the rope 1 fed from the feeding position d from the movable pulley 21 are also shown. Similarly, it makes the same angle.
[0029]
The rope 1 wound around the fixed pulley 23 is turned and extended to the payout position f higher than the introduction position e due to the inclination of the fixed pulley 23, and the moving pulley 21 is moved from the introduction position c of the moving pulley 21. Wrapped around. In the movable pulley 21, the rope 1 is fed out from a position d slightly lower than the introduction position c, similarly to the movable pulley 22. At this time, as described above, the feeding position d from the movable pulley 21 is set to be the same height as the introduction position a to the movable pulley 22.
[0030]
Next, the rope 1 fed out from the movable pulley 21 is guided to turn horizontally by the receiving rings 28, 28,... Installed in the stop 3, and led to the cableway 2 through the gripping position B. Yes.
[0031]
As described above, in the tensioning device 20 of the present invention, the introduction position a of the moving pulley 22 and the feeding position b from the moving pulley 21 are configured to be the same, thereby introducing the tensioning device 20 into the tensioning device 20. The trajectory of the rope 1 on the side and the feeding side can be made at the same angle. As a result, the receiving rings 28, 28,... Equipped in the stop 3 have the same configuration on the introduction side and the feeding side. It can be. That is, the number of the receiving rings 28, 28,... Is determined by the bending angle of the rope 1 and the tension of the rope 1. As described above, the trajectory of the rope 1 has the same angle and the same tension. In this case, the receiving rings 28, 28,...
[0032]
Here, for example, when the heights of the introduction position a and the feeding position b are different, the bending angles of the introduction side and the feeding side of the rope 1 are different and the receiving rings 28, 28,. The quantity will also be different. In this case, since the size and the like of the other mechanical device is determined so as to match the receiving ring 28, 28,... With the larger quantity, there is a possibility that the length of the mechanical device is unnecessarily increased. However, in the present invention, as described above, the receiving rings 28, 28,... Have the same configuration on the introduction side and the feeding side, and are therefore equipped with the most rational configuration.
[0033]
As described above, the rope 1 wound around the moving pulley 22, the fixed pulley 23, and the moving pulley 21 in sequence, as described above, the sliding frame 8 or the moving pulleys 21 and 22 are moved in the direction of the machine base 20b by the hydraulic cylinders 11 and 11. It is pulled and is tense. Thus, in the tensioning device 20 of the present invention, the rope 1 is wound around two pulleys, that is, the dynamic pulleys 21 and 22, and the linear pulleys 21 and 22 are slid to tension the rope 1. Therefore, when the same distance is slid with respect to the tension device that has conventionally been slid on a single pulley, it is possible to pull in a cord twice as long. In other words, the tensioning device of the present invention can be configured with a sliding distance that is 1/2 that of the conventional tensioning device with respect to the required sliding distance.
[0034]
【The invention's effect】
As described above, the tensioning device of the present invention can perform the same function at a sliding distance of ½ compared to the conventional tensioning device, and is compact even in a cableway line that requires a large sliding distance. A tensioning device can be provided.
[0035]
In addition, a receiving ring or the like for guiding the rope to the tensioning device may be installed on the introduction side and the feeding side, and furthermore, the diameter of the two pulleys is made substantially the same as the width of the cableway. A rational machine layout can be performed without the need for an expansion wheel or the like.
[0036]
As described above, the tensioning device of the present invention is compact and can be rationally arranged with other mechanical devices, and is useful for the requirement of minimizing the scale or area of the automatic circulation type cableway stop. is there.
[Brief description of the drawings]
FIG. 1 is a front view showing a tensioning device of the present invention.
FIG. 2 is a plan view showing a tensioning device of the present invention.
3 is an X1-X1 arrow view of FIG. 1;
4 is an X2-X2 arrow view of FIG. 1;
FIG. 5 is a front view of a stop provided with the tensioning device of the present invention.
FIG. 6 is a plan view of a stop with the tensioning device of the present invention.
FIG. 7 is a front view of a self-circulating cableway stop.
FIG. 8 is a front view of a self-circulating cableway stop.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Strip 2 Cableway 3 Stop place 4 Pulley 5 Rail 6 Carriage 7 Pushing device 8 Sliding frame 9 Pulley shaft 10 Guide rail 11 Hydraulic cylinder 12 Machine foundation 20 Tensioning devices 20a, 20b Machine foundation 21, 22 Moving pulley 23 Fixed pulley 24 Cylinder frame 25 Pulley frame 26, 27 Pulley shaft 28 Receiving wheel 29 Roller A Release position B Grasp position C Deceleration section D Acceleration section E Departure section F Boarding section G, H Arrow I Front position J Reverse position K Sliding Distance a, c, e Introduction position b, d, f Feeding position θ Inclination angle

Claims (1)

A tensioning device for maintaining a constant tension of a rope at a stop of an automatic circulation cableway, the first and second movable pulleys being coaxially attached to the tensioning device and sliding back and forth. A sliding frame movably supported; a hydraulic cylinder for pulling the sliding frame interposed between the sliding frame and a fixed position; and a cableway side of the first and second movable pulleys And the first and second moving pulleys have the same introduction height of the strip on the first moving pulley and the same feeding height of the strip on the second moving pulley. The fixed pulley is inclined so as to guide the rope fed out from the first moving pulley to the second moving pulley, and the rope is sequentially moved to the first Wrapped from a moving pulley to a second moving pulley via a fixed pulley Dynamic circulation type tensioning device of the cableway.

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