JPH0428295Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an automatic deceleration device for a ropeway.

[Conventional technology]

Generally, in a ropeway, as shown in FIG.
It is moved by a tow rope 6 driven by. Furthermore, the carriers 1 and 2 are kept in balance by a balance cable 11 pulled by a heavy hanger 7, a tension pulley 8, and guide pulleys 9 and 10. The driving pulley 3 is driven by an electric motor 13 via a reduction gear 12.

14 is a control device for the electric motor 13, and has an acceleration/deceleration command circuit for commanding start and stop. Reference numeral 15 denotes a finger speed generator that detects the speed of the carriers 1 and 2, and connects the relay 1 via the speed comparator 16.
7, the speeds of several points are detected. Reference numeral 18 denotes a synchro transmitter that detects the positions of the carriers 1 and 2.
0, the positions of several points are detected.

By the way, the ropeway must have a function to automatically decelerate when entering a stop, and a function to check that deceleration has been reliably performed. Such functionality can be explained with reference to FIG. The horizontal axis of the figure shows the distance from the stopping point of the carrier, and the vertical axis shows the velocity of the carrier. The deceleration of the carrier is predetermined, and the velocity reaches 0 at the stop point following a solid line trajectory from the carrier deceleration start position a. In order to check that deceleration as shown by the solid line has been carried out, guide zones as shown by diagonal lines in the figure are set. For this guide zone setting, a speed detection relay 17, a position detection relay 20
is held.

[Problem that the invention attempts to solve]

As described above, in the conventional ropeway automatic deceleration device, the carrier deceleration start position a was at one point, so when operating at an intermediate speed as shown by the dashed line in Fig. 5, deceleration is completed well before the stop. This resulted in a long operation time at creep speed, resulting in extremely inefficient operation.

The present invention was made in order to eliminate the above-mentioned drawbacks of the conventional devices, and its purpose is to provide a device that can change the deceleration start position depending on the speed of the carrier.

[Means for solving problems]

In order to achieve the above-mentioned purpose in this invention,
An electric motor that provides a driving force for towing a carrier of a ropeway, a speed determining means that classifies the speed of the motor and determines a speed zone, a position detecting means that detects the position of the carrier, and this position detecting means. and a speed position detection means for detecting the deceleration start position of a carrier entering a stop individually set according to each speed zone based on each detection result of the speed determination means and outputting a deceleration command, and this speed position. The present invention is characterized in that it includes a control device that controls the speed of the electric motor based on a deceleration command from the detection means, and that the carrier is stopped at a fixed position in the parking area in the shortest possible time.

[Effect]

In this invention, the deceleration start position of the carrier entering the parking area can be individually set according to each speed zone with a simple configuration, so the operation time at creep speed can be shortened and the operation efficiency can be improved. At the same time, it is possible to reliably stop the carrier at a fixed position at the stop in the shortest possible time.

〔Example〕

Hereinafter, the present invention will be described with reference to the embodiments shown in FIGS. 1 to 3, in which parts corresponding to the conventional ones are denoted by the same reference numerals. In FIG. 1, reference numeral 30 denotes a speed position detecting means, and this speed position detecting means 30 includes a speed determining means for discriminating speed zones, that is, a speed comparator 16, and a position detecting means for detecting the positions of the carriers 1 and 2, that is, a synchronizer. Based on the detection results of the digital converter 19, deceleration start positions individually set for each speed zone are detected and a deceleration command is output to the control device 14. Then, the control device 14 controls the speed of the electric motor 13 based on the deceleration command from the speed position detection means 30. That is, in FIG. 2, each of the speeds B to E is detected by the speed detection relay 17 as in the conventional case. The detected speed is calculated by a logic circuit.
Zones A′ to E′ are identified, and each of these zones is
By individually setting the deceleration start positions a to e according to A' to E', a deceleration characteristic as shown by the dashed-dotted line can be obtained. The deceleration characteristics shown in the figure show the case where the carrier enters the decelerator at the maximum speed within each zone A' to E'.

Next, a logic circuit that outputs a deceleration command based on zone determination will be explained. In Figure 3, 17-
B to 17-E are set speed <
Turns ON at the current speed. 20-a to 20-e are
In the carrier position detection signals a to e in Figure 2, the direction towards the stop is subtracted, and if the set position > the current position,
It becomes ON. DEC is a deceleration signal, and outputs an ON signal to the control device 14 during deceleration. Note that 21 indicates an AND circuit, 22 indicates an OR circuit, and 23 indicates a NOT circuit.

Therefore, when the carrier speed is in zone B' and the speed detection signal is 17-B, only 17-B is OFF and 1.
7-c to 17-E are ON. However, since B' in the logic circuit is turned ON by the NOT circuit 23, C' and D' are turned OFF by the following NOT circuit 23, so in zone B', B' in the logic circuit is turned ON. will be turned ON only. When the carrier approaches the stop in this state, the position detection signal 20
-b turns ON and outputs the deceleration signal DEC.

[Effect of idea]

As described above, according to the present invention, there is an electric motor that provides a driving force for towing a carrier of a ropeway, a speed determination means that classifies the speed of this electric motor and discriminates a speed zone, and detects the position of the carrier. Based on the detection results of the position detection means and the speed determination means, the deceleration start position of the carrier entering the parking area that is individually set according to each speed zone is detected and a deceleration command is output. and a control device that controls the speed of the electric motor based on a deceleration command from the speed position detection means, and furthermore, since the carrier is stopped at a fixed position in the parking area in the shortest possible time, each speed zone The deceleration start position can be set individually and inexpensively depending on the speed, which has the special effect of significantly shortening the operating time at creep speed and significantly improving operating efficiency. .

[Brief explanation of drawings]

FIG. 1 is an overall configuration diagram of a ropeway according to an embodiment of the present invention, FIG. 2 is a deceleration characteristic diagram of an automatic deceleration device according to the present invention, FIG. 3 is a logic circuit diagram of an automatic deceleration device according to the present invention, and FIG. Figure 4 is the first diagram showing the conventional device.
FIG. 5 is a deceleration characteristic diagram of a conventional automatic deceleration device. 1, 2...Carrier, 13...Electric motor, 14...Control device, 16...Speed comparator (speed determination means), 19...Synchronized digital exchanger (position detection means), 21...Speed position detection means . In addition,
In each figure, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] An electric motor that provides a driving force for towing a carrier of a ropeway, a speed determining means that classifies the speed of the motor and determines a speed zone, a position detecting means that detects the position of the carrier, and this position detecting means. and a speed position detection means for detecting the deceleration start position of a carrier entering a stop individually set according to each speed zone based on each detection result of the speed determination means and outputting a deceleration command, and this speed position. An automatic deceleration device for a ropeway, comprising a control device for controlling the speed of the electric motor according to a deceleration command from a detection means, and stopping the carrier at a fixed position in a parking area in the shortest possible time.