JP3734518B2 - Cable tension strainer - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a tensioning weight device for tensioning a rope in the field of cableway.
[0002]
[Prior art]
A cableway is a facility that pulls and transports two or more suspended carriers with a cable that circulates between pulleys on both ends. Various types are available for practical use, such as the type to be borne, and the type to suspend the load of the suspended type carrier on a separately installed stationary rope, and many are mainly used as transportation equipment for mountain slopes. ing. Recently, it is also intended to be used as a transportation facility for urban or regional transportation.
[0003]
In such cableway facilities, a tensioning device is used to constantly stretch the circulating cable with a constant tension in response to changes in operating conditions.
[0004]
FIG. 6 schematically shows a tensioning device using a weight. In the figure, a rope 103 is stretched endlessly between a pulley 102a pivotally attached to a shaft 101a and a pulley 102b pivotally attached to a shaft 101b so that it can be circulated. The shaft 101b of the pulley 102b is supported by a sliding frame 104, and the sliding frame 104 is installed so as to be slidable in the front-rear direction. In addition, a tension line 105 is connected to the end of the sliding frame 104, wound around a weight pulley 106 and turned downward, and then a tension weight 107 is suspended from the other end. is there. This configuration has been very frequently used since ancient times because the rope tension and the weight of the weight are directly connected and balanced, so that the configuration is extremely simple in principle and has high reliability. However, this tension method increases the weight weight and the occupied space when the rope tension is large, and it is necessary to dispose it at the required correlation position between the pulley 102b and the sliding frame 104. In the case of a narrow design condition, it often becomes a design constraint condition, and there are cases where the equipment cannot be economically provided.
[0005]
On the other hand, the thing of FIG. 7 shows typically the tension apparatus using a hydraulic device. A rope 113 is stretched endlessly between the pulley 112a pivotally attached to the shaft 111a and the pulley 112b pivotally attached to the shaft 111b so that it can be circulated. The shaft 111b of the pulley 112b is supported by a sliding frame 114, and the sliding frame 114 is installed so as to be slidable in the front-rear direction. A hydraulic cylinder 115 is connected to the end of the sliding frame 114. The hydraulic cylinder 115 is supplied with hydraulic oil at a constant pressure corresponding to the line tension by a constant pressure valve or the like, or is made to equilibrate with the tension of the line 113 and is tensioned at a constant tension. is there. This configuration or equipment occupies a relatively small space, and since the reliability of the apparatus has been improved by the advancement of hydraulic technology, it has become the mainstream in recent years. However, the configuration of the apparatus is somewhat complicated, and adjustment work and maintenance are difficult in that it requires slightly careful handling.
[0006]
[Problems to be solved by the invention]
As described above, the conventional tensioning devices have their respective characteristics, but the present invention takes into consideration the advantages and disadvantages of both types, and directly calculates the line tension and weight weight, which are characteristic points of the weight system. The structure is extremely simple in principle and highly reliable because it is connected and balanced, and the place where the weight is installed does not necessarily have to be located in a special correlation position with the position of the pulley. The purpose of this is to provide an apparatus that can freely select a position.
[0007]
[Means for solving problems]
Corresponding to this purpose, the present invention provides a cableway facility for transporting by pulling a suspension type carrier with a rope wound around and stretched between pulleys at both ends. intervening sliding side hydraulic cylinder for fixing the other spaced from the fixed position between the slide frame slidably supported in the longitudinal, the fixed position and the sliding frame relative to the fixed position Te A foot-type weight-side hydraulic cylinder provided with a telescopic rod standing upright at a position, a weight device having a tension weight suspended vertically by the weight-side hydraulic cylinder, and the sliding A hydraulic pipe for circulating hydraulic oil is connected between the hydraulic cylinder on the side and the hydraulic cylinder on the weight side, and the tension weight is connected to the telescopic rod or the hydraulic cylinder on the weight side that opens downward. Airy Tension weight of cableway has supported in conjunction with the telescopic rod in the ceiling portion has a space portion, and is the weight device comprising a guide rail for guiding the tensioning weight along the vertical direction It is configured as a device.
[0008]
[Action]
The tension weight device of the cableway of the present invention includes a sliding frame that is slidable before and after the rope is wound, a sliding hydraulic cylinder that is interposed between the sliding frame and the fixed position, and a fixed position. Hydraulic oil is circulated between the weight-side hydraulic cylinder standing upright, the tension weight suspended up and down by the weight-side hydraulic cylinder, and the sliding-side hydraulic cylinder and the weight-side cylinder And hydraulic piping for the purpose.
[0009]
A pulley is pivotally attached to the sliding frame, and the strips introduced from the direction of the cableway are rolled and sent back to the cableway again. Wheels are pivotally attached to the sliding frame, and are configured to be slidable by being guided by guide rails. An end of the sliding frame is connected to a sliding hydraulic cylinder having a telescopic rod. On the other hand, a weight-side hydraulic cylinder having a telescopic rod is erected at a fixed position, and a tension weight is suspended and supported, and is guided up and down in a fixed support frame. These sliding cylinders and weight cylinders are connected by hydraulic piping so that hydraulic fluid can flow between them.
[0010]
In such a configuration, a rope is wound around the pulley and circulates, and the transporter is operated along with the movement of the rope. In the weight device, the weight of the tension weight is reduced by the hydraulic oil in the weight side hydraulic cylinder body via the telescopic rod to generate pressure, and this pressure passes through the hydraulic piping and the hydraulic oil in the sliding side cylinder. Therefore, the sliding frame is moved through the telescopic rod of the sliding cylinder. Thus, the tension of the rope and the acting force based on the gravity of the tension weight are balanced, and the rope can be tensioned with a constant tension via the pulley.
[0011]
【Example】
In the present embodiment, a case of a single-line automatic circulation type cableway will be described as an example of cableway equipment. FIG. 1 is a plan view illustrating the overall arrangement of a single-wire automatic circulation cableway 1 using the apparatus of the present invention. In the figure, a stop 2a at one end is a driving stop with a prime mover 20, and a stop 2b at the other end is a tension stop with a tensioning device 30. A pulley 21 having a driving device 23 is attached to the driving shaft 22 on the driving shaft 22. Further, a pulley 31 is pivotally attached to a tension shaft 32 in the tension device 30. Between these pulleys 21 and 31, an endless rope 3 is wound and stretched in the cableway 4, and in the cableway 4, the pressure receiving cable device 6 is supported by the columns 5, 5. , 6 or 6, 6. In addition, elevated rails 7a or 7b to be transported and transported in the stops 2a, 2b are suspended in a substantially U shape in plan view.
[0012]
As shown in FIGS. 2 and 3, the carrier 10 is formed by suspending a carrier body 13 from a grinder 11 via a suspension 12, and the rope 5 is grasped by the grinder 11 to move the rope. The grinder 11 is provided with wheels 11a and 11a for rolling the rails 7a or 7b. For example, the transporter 10 is transported at a slow speed along the rail 7b of the stop 2b, gets off the passenger, gets on the board, and is accelerated and transported after that. Departs from the cableway 4 and operates in the direction of the stop 2a. Thus, when reaching the stop 2a, the grinder 11 unwinds the rope 3 and moves on the rail 7a and rolls while being decelerated and forwarded. And after a passenger's getting off and boarding here, it is accelerated and transferred again, and it departs toward stop 2b. In FIG. 1, only two units are shown as representatives of the carriers 10, 10, but actually, a plurality of the carriers 10, 10,... Are used and departed one after another at a predetermined interval for circulation operation. Is done.
[0013]
Next, the tensioning device 30 will be described with reference to FIGS. 2, 3, and 4. The tensioning device 30 is roughly divided into a pulley 31 and a sliding frame 40 which is slidable back and forth along the guide rail 46, and is interposed between the sliding frame 40 and a fixed position. The sliding hydraulic cylinder 50, the weight hydraulic cylinder 55 standing at a fixed position such as the ground shown in FIG. 4, and the tension weight suspended vertically by the weight hydraulic cylinder 55. A weight device 60 including 61, and a hydraulic pipe 58 that connects between the sliding hydraulic cylinder 50 and the weight hydraulic cylinder 55.
[0014]
The sliding frame 40 is formed by connecting horizontal members 41 and 42, which are parallel in the vertical direction, with end members 44 and 45 to form an integral frame-like body. A tension shaft 32 is fixed, and the pulley 31 is pivotally attached to the tension shaft 32 in a horizontal posture. Wheels 43, 43... Are pivotally attached to the horizontal member 42 of the sliding frame 40 via wheel shafts 43a, 43a. On the other hand, at the fixed position on the ground side, there is provided a guide frame 47 in which support legs 48, 48, 48 are erected and a beam 49 is bridged, whereby the guide rail 46 is fixedly supported in a horizontal posture. . The wheels 43, 43... Are engaged with the guide rails 46, 46 so as to be able to roll, so that the sliding frame 40 can slide back and forth. A support member 53 protrudes upward from the end portion of the guide frame 47.
[0015]
The strip 3 introduced from the direction of the cable track 4 is wound and folded around the pulley 31, and the cable 3 is sent again in the direction of the cable track 4. And in the case of a present Example, since it has illustrated about the case of a single track | line automatic circulation type cableway, the gripping machine 11 of the carrier 10 is guided to the rail 7a or 7b by the wheels 11a and 11a, and rolls. It is made like that.
[0016]
Next, an end member 45 in the sliding frame 40 is connected to a sliding hydraulic cylinder 50. In other words, the end member 44 is connected to the expansion / contraction rod 52 of the sliding hydraulic cylinder 50 via the pin 52a, and the expansion / contraction rod 52 is inserted into the cylinder body 51 and can be expanded / contracted. The cylinder body 51 is pivotally attached to the support member 53 with a trunnion or pin 53a while allowing some pivotal displacement.
[0017]
Next, the weight device 60 will be described. The weight device 60 does not need to be provided at a specific interrelation position with the sliding frame 40 or the guide frame 47, and can be provided at an arbitrary position. In the case of the present embodiment, The case where it arrange | positions to the side of the stop 2b as shown in FIG. 1, FIG. 2 is shown.
[0018]
As shown in FIG. 4, the weight device 60 is constructed such that a tension weight 61 is inserted in an inner region of a support frame 64 having a frame-like body as shown in FIG. Is.
[0019]
That is, the support frame 64 is a rectangular frame body in which vertical members 65 and 65 that are parallel to each other are integrally connected to each other by a horizontal member 66, and the lower portions of the vertical members 65 and 65 are fixed on the ground or the like. It is fixed in place. Guide rails 67 or 67 are fixedly attached along the inside of the vertical members 65 and 65, respectively. On the other hand, the tension weight 61 has a block shape with a required weight. The tension weight 61 has a shape having an empty space or a space portion 62 opened downward near the center of the tension weight 61. Alternatively, it is made of steel or the like. Engaging members 63, 63 and 63, 63 are provided on the side of the tension weight 61. The engaging members 63, 63 and 63, 63 are engaged with the guide rail 67 or 67 provided in the vertical member 65 or 65, and are guided by this to slide up and down. The engaging members 63, 63, 63, 63 are roller-type ones that roll along the guide rails 67, 67, or guide shoe type-type guide rails 67, 67. Those that slide while being guided by can be selected and used as necessary.
[0020]
Next, the weight-side hydraulic cylinder 55 uses a foot-type cylinder as the cylinder body 56, and is placed on a fixed position on the ground or the like with the foot member 56 a to be in a standing posture. The telescopic rod 57 is vertically extendable from the cylinder body 56, and is connected to the tension weight 61 with a pin 57a at the upper end of the telescopic rod 57. I support it. Here, a hydraulic pipe 58 is connected between the weight side hydraulic cylinder 55 and the sliding side cylinder 50, and the hydraulic pipe 58 is filled with hydraulic oil. For example, in response to the extension or shortening operation of the telescopic rod 57 of the weight side hydraulic cylinder 55, the other hydraulic cylinder, that is, the telescopic rod 52 of the sliding side hydraulic cylinder 50, shortens or extends. 2 or 3 and the hydraulic pipe 58 shown in FIG. 4 communicate with each other.
[0021]
Next, the operation or action of the tension weight device of the cableway constructed as described above will be described.
[0022]
As shown in FIG. 2, a pulley 31 is pivotally attached to the sliding frame 40, and the strip 3 guided from the cable track 4 is wound around the pulley 31 and is folded back toward the cable track 4 again. ing. Wheels 43.43... Are pivotally attached to the lower part of the sliding frame 40. Accordingly, the entire sliding frame 40 is guided by the guide rail 46 so as to be slidable back and forth. An end of the sliding frame 40 is connected to a sliding hydraulic cylinder 55 having a telescopic rod 52 that can expand and contract.
[0023]
On the other hand, a weight side hydraulic cylinder 55 provided with a telescopic rod 57 is erected at a fixed position, and a tension weight 61 is suspended and supported. The tension weight 61 guides in a fixed support frame 64. It can be moved up and down along the rails 67 and 67. Thus, the sliding hydraulic cylinder 50 and the weight hydraulic cylinder 55 are connected by the hydraulic pipe 58 so that the hydraulic oil flows between them.
[0024]
In such a configuration, the rope 3 is wound around the pulley 31 and circulated, and the transporters 10, 10... Are operated as the rope 3 moves. In the weight device 60, the weight of the tension weight 61 generates pressure by reducing the hydraulic oil in the cylinder body 56 via the telescopic rod 57, and this pressure is actuated in the sliding hydraulic cylinder 50 via the hydraulic pipe 58. Accordingly, the sliding frame 40 is pressed by exerting a force in a direction in which the telescopic rod 52 of the sliding side hydraulic cylinder 50 is extended. Thus, the tension of the rope 3 and the acting force based on the weight of the tension weight 61 are balanced, and the rope 3 is tensioned with a constant tension via the pulley 31.
[0025]
Even when the tension of the rope 3 decreases due to a change in the load condition in the cableway 4, etc., the acting force based on the weight of the tension weight 61 is constant, and the tension weight 61 descends to decrease the weight-side hydraulic pressure. When the telescopic rod 57 of the cylinder 55 is shortened, hydraulic oil is sent from the weight side hydraulic cylinder 55 to the sliding side hydraulic cylinder 50 through the hydraulic pipe 58, so that the telescopic rod 52 is extended and the sliding frame 40 is connected to the cableway. It moves in the direction opposite to the track 4 and applies tension to the rope 3 through the pulley 31. Thus, when the tension of the rope 3 and the weight of the tension weight 61 are balanced, the movement of the sliding frame 40 is finished and reaches equilibrium.
[0026]
Similarly, when the tension of the rope 3 increases, the tension weight 61 rises and the telescopic rod 52 of the weight side hydraulic cylinder 55 extends, so that the weight side hydraulic cylinder 55 has a sliding side cylinder. From 50, the hydraulic oil flows back through the hydraulic pipe 58, that is, the telescopic rod 52 of the sliding side hydraulic cylinder 50 is shortened, and the sliding frame 40 moves in the direction of the cableway 4 and passes through the pulley 31 and the strip 5 Acts to relax. Thus, when the tension of the rope 5 and the weight of the tension weight 61 are balanced, the movement of the sliding frame 40 is finished and reaches equilibrium.
[0027]
In this way, the sliding frame moves back and forth based on the weight of the tension weight regardless of whether the tension of the rope is decreasing or increasing, and the constant tension of the rope tension is maintained.
[0028]
In this device, the weight side hydraulic cylinder and the sliding side hydraulic cylinder are connected by hydraulic piping, so the tension weight must be installed at a specific location relative to the position of the sliding frame or pulley. There is no necessary restriction, and if the hydraulic piping is extended or bent, the tension weight can be installed at an arbitrary position.
[0029]
(Other examples)
In the above-described embodiment, the case where the sliding side hydraulic cylinder is installed on the cableway direction side with respect to the sliding frame is shown. However, in this embodiment, the sliding side hydraulic cylinder is The case where it is provided in the direction opposite to the cableway will be described.
[0030]
In FIG. 5, the pulley 31A in which the cord 3 is wound similarly to the previous case is pivotally attached to the frame-shaped sliding frame 40A. On the other hand, a guide frame 47A is fixed on the floor surface at the fixed position and supports the guide rail 46A horizontally. The slide frame 40A is guided to the guide rail 46A by wheels 43A and 43A and is moved back and forth. It can be slid. A sliding hydraulic cylinder 50A is interposed between the tail end of the sliding frame 40A and the tail end of the guide rail 46A, which is a fixed position, and the telescopic rod 52A is connected to the sliding frame 40A. Yes.
[0031]
Next, in this embodiment, the weight device 60A is provided on another floor surface having a level difference from the floor surface on which the guide frame 47A is provided. That is, a tension weight 61 is provided which is guided in a frame-like support frame 64A standing at a fixed position and is slidable in the vertical direction. The tension weight 61 is set up at the fixed position. It is connected to a telescopic rod 57A of the weight-side hydraulic cylinder 55A and is suspended and supported. These sliding side hydraulic cylinders 50A and weight side hydraulic cylinders 55A are connected by a hydraulic pipe 58A so that hydraulic fluid flows between them. However, the difference from the case of the above embodiment is that this hydraulic pipe 58A is connected to the base side of the cylinder at the weight side hydraulic cylinder 55A side connection end, and at the sliding side hydraulic cylinder 50A side connection end. The difference is that it is connected to the end of the cylinder on the telescopic rod 52A side.
[0032]
In the apparatus of this embodiment having such a configuration, when the tension of the rope 3A is relaxed, the telescopic rod 57A of the weight side hydraulic cylinder 55A is shortened by the weight of the tension weight 61A, and the discharged operation is performed. The oil flows through the hydraulic piping 58A and flows into the sliding hydraulic cylinder 50A. Therefore, the telescopic rod 52A is shortened and the sliding frame 40A is moved to tension the rope 3A, thus reaching equilibrium. Further, when the tension of the rope 3A increases, the telescopic rod 52A is extended along with the sliding movement of the sliding frame 40A in the direction of the cable track 4A, and the hydraulic oil is discharged from the sliding hydraulic cylinder 50A, and the hydraulic pipe 58A is discharged. Then, it is sent to the weight side hydraulic cylinder 55A. Therefore, the telescopic rod 57A extends, and the tension weight 61A moves upward to reach equilibrium.
[0033]
Even in the case of this embodiment, the basic operation is the same as in the case of the above-described embodiment. However, in the case where the mounting direction of the sliding side hydraulic cylinder 50A with respect to the sliding frame 40A is different in this way, it is equally effective. Even when there is a difference in level between the floor surface of the tensioning device 30A and the floor surface of the weight device 60A, it can be effectively installed.
[0034]
In addition, although both the previous embodiment and this embodiment described and explained the case of the single-line automatic circulation type cableway equipment, the device of the present invention can be used for any other type of cableway equipment. It can be similarly applied to a tension device for a rope for pulling a carrier such as a support rope.
[0035]
【The invention's effect】
A weight type tensioning device has long been used as a rope tensioning device for cableway equipment, but recently, a hydraulic tensioning device has been frequently used. Among these, the weight type tensioning device performs tension by the tension force resulting from the weight of the constant weight tension weight, so the principle is simple and straightforward and therefore reliable. However, there is a restriction that the equipment installation space is large and the equipment must be installed in the required relationship in relation to the position of the pulley or sliding frame. There were often cases where it was difficult to install in confined spaces.
[0036]
On the other hand, the configuration and equipment of the hydraulic tensioning device occupies a relatively small space, but the configuration of the device is somewhat complicated, and adjustment and maintenance have been difficult in that it requires some careful handling. .
[0037]
In consideration of the advantages and disadvantages of both types, the present invention directly connects and balances the rope tension and weight weight, which is a feature point of the weight method, and the principle of construction is in principle. It has extremely simple and highly reliable characteristics, and the location where the weight is installed does not necessarily have to have a special correlation position with the position of the pulley or sliding frame. It can be selected.
[0038]
In the apparatus of the present invention, the hydraulic cylinder is connected between the weight-side hydraulic cylinder and the sliding-side hydraulic cylinder so that the tension force is transmitted by the hydraulic oil. The tensioning weight equipment can be provided at any position without restriction with respect to the sliding frame including the tension pulley. Therefore, the device of the present invention can freely select the equipment location of the weight device even when there are restrictions due to narrow terrain conditions, site conditions, etc. Can be used.
[Brief description of the drawings]
FIG. 1 is a plan view showing the overall arrangement relationship of an automatic circulation cableway.
FIG. 2 is a plan view showing a tension weight device at a stop.
FIG. 3 is a side view showing a tension weight device.
FIG. 4 is a side view showing a weight device.
FIG. 5 is an explanatory view showing a tension weight device diagram in another embodiment in a side view.
FIG. 6 is a perspective view schematically showing a configuration of a conventional weight-type tension device.
FIG. 7 is a perspective view schematically showing a configuration of a conventional hydraulic tensioning device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Single track fixed circulation type cableway 2a, 2b Stop place 3 Line 4 Cableway line 5 Strut 6 Pressure receiving cable apparatus 7a, 7b Rail 8 Arrow 10 Carriage 11 Grasping machine 11a Wheel 12 Suspension machine 13 Carriage machine body 20 Prime mover 21 Pulley 22 Prime move Shaft 23 Drive device 30 Tension device 31 Pulley 32 Tension shaft 40 Sliding frame 41, 42 Horizontal member 43 Wheel 43a Wheel shaft 44, 45 End member 46 Guide rail 47 Guide frame 48 Support leg 49 Beam 50 Sliding side hydraulic cylinder 51 Cylinder Main body 52 Telescopic rod 52a Pin 53 Support member 53a Pin 55 Weight side hydraulic cylinder 56 Cylinder main body 56a Foot member 57 Telescopic rod 57a Pin 58 Hydraulic piping 60 Weight device 61 Tension weight 62 Space portion 63 Engagement member 64 Support frame 65 Vertical member 66 Horizontal member 67 Guide rail 3A Cable 4A Cableway Road 30A Tensioning device 31A Pulley 40A Sliding frame 43A Wheel 46A Guide rail 47A Guide frame 50A Sliding side hydraulic cylinder 52A Telescopic rod 55A Weight side hydraulic cylinder 57A Telescopic rod 58A Hydraulic piping 60A Weight device 61A Tensioning weight 64A Support frame 101a, 101b Shafts 102a, 102b Pulley 103 Line 104 Sliding frame 105 Tension line 106 Weight pulley 107 Tension weights 111a, 111b Shafts 112a, 112b Pulley 113 Line 114 Sliding frame 115 Hydraulic cylinder

Claims (1)

In a cableway facility that transports by pulling a suspension type carrier with a rope that is wound and stretched between pulleys on both ends,
A sliding side hydraulic cylinder interposed between the slide frame slidably supported in the longitudinal, the fixed position and the sliding frame relative to the fixed position by pivotally one of said pulleys, said It has a weight-side hydraulic cylinder of the foot type having launched a telescopic rod erected on other fixed position separated from the fixed position, the vertically movable suspended tensioned weight up and down by the weight-side hydraulic cylinder The telescopic rod is configured such that a hydraulic pipe is connected between the weight device , the sliding hydraulic cylinder and the weight hydraulic cylinder, and hydraulic oil is allowed to flow therethrough, and the tension weight opens downward. Alternatively, it has an empty space or space that can accommodate the weight side hydraulic cylinder, and is supported by being connected to the telescopic rod at the ceiling, and the weight device is configured to support the tension weight along the vertical direction. Gu to guide Tension weight apparatus of the cableway, which is equipped with a Doreru.

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