CN116605732A - Elevator system and sling inspection method - Google Patents

Abstract

The invention provides an elevator system and a sling inspection method. Provided is an elevator system which can easily inspect a sling without depending on the installation position of a traction machine. The elevator system overhauls a part of a sling wound on a traction machine on a floor of an overhauling object, and is provided with: a calculation unit that calculates an inspection position, which is a stop position of the car when the inspection of the portion of the sling is performed, from position information of the hoisting machine and position information of the car when the car is stopped at the floor of the inspection target; a storage unit that stores the inspection position calculated by the calculation unit; and a control unit that moves the car based on the inspection position stored in the storage unit.

Description

Elevator system and sling inspection method

Technical Field

The invention mainly relates to a technology for overhauling a sling.

Background

In the maintenance work of a main rope in an elevator without a machine room, when a car stops at a floor such as a reference floor (for example, a large number of floors), an intermediate floor, or the like (hereinafter, referred to as a "floor to be maintained"), a portion where the main rope is suspended from a sheave of a hoisting machine is regarded as an important maintenance portion, and an operator performs visual maintenance with emphasis. Regarding an important maintenance site, a maintenance person can examine the important maintenance site from the car by providing a mark in advance for a main rope suspended from a sheave of the hoisting machine when the car stops at a floor of an examination object (refer to patent document 1).

Prior art literature

Patent literature

Patent document 1: JP-A2016-132556

In the case where the hoisting machine is installed at a high place, the technique described in patent document 1 requires access to the hoisting machine from the car, and it becomes difficult to set a mark at an important inspection position of the main rope, and inspection of the main rope cannot be easily performed.

Disclosure of Invention

The present invention has been made in view of the above points, and it is intended to provide an elevator system or the like capable of easily inspecting a suspension rope regardless of the installation position of a hoisting machine.

In order to solve the above problems, according to the present invention, an elevator system for performing inspection of a portion of a sling wound around a hoisting machine at a floor to be inspected, the elevator system includes: a calculation unit that calculates an inspection position, which is a stop position of the car when the inspection of the portion of the hoisting rope is performed, from position information of the hoisting machine and position information of the car when the car is stopped at the floor of the inspection target; a storage unit that stores the inspection position calculated by the calculation unit; and a control unit that moves the car based on the inspection position stored in the storage unit.

In the above configuration, for example, the maintenance person can calculate the inspection position by setting the position information of the hoisting machine and the car and stop the car at the inspection position, and therefore, it is not necessary to set a mark for the inspection position in advance by accessing the hoisting machine, and the hoisting rope can be inspected regardless of the installation position of the hoisting machine. In addition, according to the above configuration, for example, even if a sign is not provided on the sling, since the car is automatically stopped at the inspection position, maintenance personnel can inspect the sling.

ADVANTAGEOUS EFFECTS OF INVENTION

According to the present invention, an elevator system with high convenience can be realized. The problems, structures, and effects other than those described above will be apparent from the following description of the embodiments.

Drawings

Fig. 1 is a diagram showing a schematic configuration of an elevator system according to embodiment 1.

Fig. 2 is a diagram for explaining parameters for calculating the inspection position according to embodiment 1.

Fig. 3 is a diagram showing an example of the structure in the hoistway according to embodiment 1.

Fig. 4 is a diagram showing an example of a processing flow related to calculation of the inspection position according to embodiment 1.

Fig. 5 is a diagram showing an example of a processing flow relating to the marking operation according to embodiment 1.

Fig. 6 is a diagram showing an example of processing of the control panel according to embodiment 1.

Fig. 7 is a diagram showing an example of the elevator system according to embodiment 1.

Description of the reference numerals

100 … … elevator system, 110 … … car, 130 … … main sling, 160 … … traction machine, 180 … … control panel.

Detailed Description

(I) Embodiment 1

An embodiment of the present invention is described in detail below. However, the present invention is not limited to the embodiment.

In the elevator system of the present embodiment, the inspection position is calculated using a formula in which the relation between the stop position of the car on the floor to be inspected and the stop position of the car where the inspection position of the main rope is staggered on the car (the stop position of the car where the inspection operation of the main rope is performed, hereinafter referred to as the "inspection position") is expressed. The elevator system automatically stops the elevator car at the inspection position according to the position information of the elevator car managed by a control part for controlling the operation of the elevator car.

According to the above configuration, the maintenance person can automatically stop the car at the inspection position from the car by setting information (parameter for calculating the inspection position) on the stop position of the car at the floor to be inspected. Since the car is automatically stopped at the inspection position, it is not necessary to perform a work (marking work) of previously marking the main rope suspended on the sheave of the hoisting machine, and therefore the inspection of the main rope can be performed independently of the installation position of the hoisting machine. Further, since the car is automatically stopped at the inspection position, the marking operation can be performed from the car, and thus, no matter whether the marking operation is performed or not, the maintenance personnel does not need to access the hoisting machine, and the number of man-hours for the maintenance personnel can be reduced.

In the present specification, references such as "1 st", "2 nd" and "3 rd" are attached for identifying the constituent elements, and the number and order are not necessarily limited. In addition, the numbers for identifying the constituent elements are used for each context, and the numbers used in 1 context do not necessarily indicate the same structure in other contexts. The function of the component identified by a certain number as a component identified by another number is not hindered.

Next, embodiments of the present invention will be described based on the drawings. The following description and drawings are illustrative of the present invention, and are omitted or simplified for clarity of the description. The present invention can be implemented in various other forms. The constituent elements may be single or plural, as long as they are not particularly limited.

In the following description, the same elements are denoted by the same reference numerals in the drawings, and the description thereof is omitted. Note that, when the description is made with different types of elements, common portions (portions other than the sub-numbers) among reference numerals including the sub-numbers are used, and when the description is made with different types of elements, reference numerals including the sub-numbers may be used. For example, when the halls are not particularly described differently, the hall is referred to as "hall 102", and when the hall is described differently, the hall is sometimes described as "lowest hall 102-1" or "middle hall 102-2".

Fig. 1 is a diagram showing a schematic configuration of an elevator system 100 according to the present embodiment. In the elevator system 100, a car 110 is provided in a hoistway 101.

The car 110 is a box-shaped structure for seating a person, an object, or the like, and is stopped at the hall 102 in response to an operation of a call button of the person, an operation of a maintenance tool 104 of a maintenance person 103, or the like. As the lobby 102, a plurality of lobbies 102 such as the lowest floor lobby 102-1, the middle floor lobby 102-2, and the uppermost floor lobby 102-3 are provided. A car upper handrail 113 for preventing the maintenance person 103 from falling down to the hoistway 101 is provided above a ceiling 111 of the car 110, that is, a so-called car upper 112. The car 112 is provided with an instrument box 114 to which the maintenance tool 104 operated by the maintenance person 103 can be connected. As the maintenance tool 104, for example, a portable personal computer can be used. In addition, an on-car buzzer or the like for making the maintenance person 103 know information may be provided on the car 112.

The elevator system 100 further includes a counterweight 120. In the hoistway 101, the car 110 and the counterweight 120 are arranged to be capable of being lifted by the main rope 130.

The main rope 130 is typically a plurality of sheaves, and is supported by a support structure 105 (main rope supporting portion) at the top of the hoistway 101, the sheave 161 and the under-car sheave 170 provided on the counterweight sheave 140, the top sheave 150, and the hoisting machine 160. More than 1 marker 131 indicating the inspection site may be provided on the main rope 130. For example, between the upper sign 131-1 and the lower sign 131-2 is a maintenance range (an example of a maintenance site) in which the maintenance person 103 inspects the main rope 130 on the car 112. In the present embodiment, the portion considered to be the most advanced portion of wear of the main slings 130 is the portion between the marks 131. This is because the portion of the main rope 130 that hangs over the sheave 161 when the car 110 stops at the floor to be inspected hangs over the sheave 161 at most in the acceleration/deceleration range of the car 110.

The counterweight pulley 140 is provided on the counterweight 120, and is a pulley for driving the counterweight 120 with the main sling 130. The top pulley 150 is disposed at the top of the elevating channel 101. As the top sheave 150, a car-side top sheave 150-1 and a counterweight-side top sheave 150-2 are provided. The hoisting machine 160 is installed in the hoistway 101, and hoist the car 110 and the counterweight 120 via the main rope 130. The sheave 161 transmits the driving force of the traction machine 160 to the main sling 130. The lower car sheave 170 is disposed at a lower portion of the car 110, supports the car 110, and moves up or down the car 110 via the sheave 161 by driving the hoisting machine 160.

In fig. 1, the traction machine 160 and the sheave 161 are shown as being installed at a position higher than the floor level (level) of the lowest hall 102-1, but the traction machine may be installed further down or further up, and the height of the traction machine is not limited to the height of the traction machine installed in the hoistway 101.

A control panel 180 as a control device for controlling the operation of the car 110 is disposed in the hoistway 101, and an IND box 190 is provided in the lowermost hall 102-1. The 1 st communication cable 181 is routed from the control panel 180 into the IND box 190. The maintenance tool 104 is connected to the 1 st communication cable 181 via the 2 nd communication cable 182, and can perform communication with the control panel 180. Thus, the maintenance person 103 can perform a job of setting parameters for calculating the inspection position to the control panel 180 from the hall 102 via the maintenance tool 104.

The 1 st communication cable 181 is connected to the appliance box 114 of the car upper 112 via the 3 rd communication cable 183. The maintenance tool 104 can communicate with the control panel 180 when connected to the tool box 114 via the 2 nd communication cable 182. Thus, the maintenance person 103 instructs the control panel 180 from the car upper 112 via the maintenance tool 104 to stop the car 110 at the inspection position, and can perform the marking work of marking the inspection site 131, the inspection work of the inspection site, and the like.

The hardware resources of the control panel 180 are not shown, but the control panel 180 includes, for example, a processor such as a CPU (Central Processing Unit ), MPU (Micro Processing Unit, microprocessor), GPU (Graphics Processing Unit, graphics processor), a storage device such as a ROM (Read Only Memory), a RAM (Random Access Memory, random access device), and HDD (Hard disk Drive). The functions of the control panel 180 (the calculation unit 180-1, the storage unit 180-2, the control unit 180-3, the interface unit 180-4, and the like) may be realized by a processor reading out a program stored in a ROM, an HDD, or the like to a RAM and executing the program (software), may be realized by hardware such as a dedicated circuit, or may be realized by a combination of software and hardware. In addition, 1 function of the control panel 180 may be divided into a plurality of functions, or the plurality of functions may be combined into 1 function. Further, a part of the functions of the control panel 180 may be provided as other functions, or may be included in other functions. In addition, a portion of the functions of the control panel 180 may be implemented by other computers capable of communicating with the control panel 180.

The calculating unit 180-1 calculates an inspection position, which is a stop position of the car 110 when the inspection of the main rope 130 is performed. The storage unit 180-2 stores the inspection position calculated by the calculation unit 180-1. The control unit 180-3 moves the car 110 based on the inspection position stored in the storage unit 180-2. The interface 180-4 can communicate with the maintenance tool 104 via the 1 st communication cable 181 or without via the 1 st communication cable 181.

Fig. 2 is a diagram for explaining parameters for calculating the inspection position.

Here, in the elevator system 100, a 1 st main rope section 201, a 2 nd main rope section 202, and a 3 rd main rope section 203 are set. As the 1 st main rope section 201, a section from the sheave 161 to the car-side top sheave 150-1 is set. As the 2 nd main rope segment 202, a segment from the sheave 161 to the counterweight-side top sheave 150-2 is set. The 3 rd main rope segment 203 is set from the counterweight pulley 140 to the counterweight-side top pulley 150-2. Further, an overlap allowance (corresponding to japanese koku-rao) 204 and a center point 205 are set in the main suspension cable 130. The overlap allowance 204 is an overlap allowance of the sheave 161 and the main sling 130 at the stop position of the car 110 in the floor of the inspection object. The center point 205 is a point representing the center of the overlap allowance 204. In the present embodiment, the position of the center point 205 of the overlap allowance 204 of the main rope 130 (for example, the position where the center point 205 coincides with the vicinity of the chest height of the maintenance person 103) is described as a position where the inspection work is easy to visually recognize.

If the car 110 moves from the lowest hall 102-1 to the uppermost hall 102-3, the center point 205 of the overlap tolerance 204 moves over the 1 st main sling section 201, the 2 nd main sling section 202, and the 3 rd main sling section 203. Accordingly, the maintenance person 103 can check the state of the main rope 130 while boarding the car 112 and operating the car 110.

Next, a formula for calculating the inspection position will be described. The following (equations 1) to (4) are equations for determining which main rope section of the 1 st main rope section 201, the 2 nd main rope section 202, and the 3 rd main rope section 203 the inspection site (for example, the center point 205) is located. When the parameter X satisfies (expression 1), it is determined that there is a maintenance site in the 1 st main rope segment 201. When the parameter X satisfies the conditions (expression 2) and (expression 3), it is determined that there is a repair site in the 2 nd main rope section 202. When the parameter X satisfies (expression 4), it is determined that there is a maintenance site in the 3 rd main rope section 203.

[ math 1 ]

[ formula 2 ]

[ formula 3 ]

[ math figure 4 ]

In this way, which main rope section the inspection site is located is determined based on the positional relationship between the equipment (the car 110, the top sheave 150, the sheave 161, etc., the equipment for the elevator) for lifting and lowering the car 110.

The following (equations 5) to (equation 7) are equations for calculating the inspection position. When it is determined that there is an inspection site in the 1 st main rope section 201, the inspection position (parameter Y) is calculated using (formula 5). When it is determined that there is a maintenance site in the 2 nd main rope section 202, the maintenance position (parameter Y) is calculated using (formula 6). When it is determined that there is a maintenance site in the 3 rd main rope section 203, the maintenance position (parameter Y) is calculated using (formula 7).

[ formula 5 ]

[ formula 6 ]

[ formula 7 ]

Here, the parameters related to (formula 1) to (formula 7) are shown below.

H1: from the floor level of the lowest hall 102-1 to the level of the lower end of the traction machine 160

H2: height of the sheave core from the lower end of the hoisting machine 160 to the sheave 161

And H3: height from sheave core to main sling 130 extending to outside of traction machine 160

H4: height from the pulley core of the counterweight-side top pulley 150-2 to the top of the elevator shaft 101

And H5: height +α from floor surface of car 110 to handrail 113 on car

Alpha: height from the car upper handrail 113 to the center point 205 when the main sling 130 is provided with a sign 131

D1: diameter of sheave 161

D2: diameter of counterweight side top sheave 150-2

ST: travel distance (height from the floor level of the lowest lobby 102-1 to the floor level of the uppermost lobby 102-3)

OH: overhead (height from the floor level of the uppermost hall 102-3 to the top of the hoistway 101)

X: height from floor plane of lowermost hall 102-1 to floor plane of car 110 when car 110 stops at floor of inspection object

Y: the center point 205 is the height from the floor plane of the lowest hall 102-1 to the floor plane of the car 110 at the same height as +α from the floor plane of the car 110 to the height of the handrail 113 on the car

LI: length of main rope 130 from sheave 161 to car-side top sheave 150-1

L2: length of main sling 130 hanging on sheave 161

L3: length of main sling 130 from sheave 161 to counterweight-side top pulley 150-2

L4: length of main sling 130 depending from counterweight-side top pulley 150-2

L5: length of main sling 130 from counterweight-side top pulley 150-2 to counterweight pulley 140

In this way, the position (inspection position) of the car 110 when the center point 205 of the overlap allowance of the main suspension 130 on the floor of the inspection target is staggered with the position of the handrail 113+α of the car 112 is calculated from the positional relationship of the equipment involved in lifting and lowering the car 110.

Fig. 3 is a diagram showing an example of the structure in the elevating path 101 when the elevating path 101 is seen from above.

As shown in fig. 3, the main sling 130 is arranged to surround the car 110. The main slings 130-1 represent the main slings 130 of the 1 st main sling section 201, the main slings 130-2 represent the main slings 130 of the 2 nd main sling section 202, and the main slings 130-3 represent the main slings 130 of the 3 rd main sling section 203. Depending on the arrangement, the operator can mark the main sling 130 in any of the main sling sections from the car 112.

Fig. 4 is a diagram showing an example of a processing flow related to calculation of the inspection position.

In S401, the maintenance person 103 sets parameters related to the inspection position. For example, the maintenance person 103 connects the maintenance tool 104 to the IND box 190 via the 2 nd communication cable 182, and operates the maintenance tool 104 to set parameters used for calculating the inspection position to the control unit 180-3 of the control panel 180. In addition, when there are a plurality of floors to be inspected, the maintenance person 103 can set the parameter X for each floor to be inspected.

At S402, the control panel 180 determines a main sling section having a service site. For example, the control panel 180 determines which of the main rope sections 201, 202, and 203 of each of the inspection target floors is located for each of the inspection target floors by using the parameters set in S401.

In S403, the control panel 180 calculates the inspection position. For example, the control panel 180 selects a formula corresponding to the main rope section determined in S402 from among (formula 5) to (formula 7) for the floor of the untreated maintenance object, and inputs the parameters set in S401 to the selected formula to calculate the parameter Y.

At S404, the control panel 180 stores the main sling section and the service position. For example, the control panel 180 associates and stores information indicating the 1 st main rope section 201, the 2 nd main rope section 202, or the 3 rd main rope section 203 with information indicating the inspection position corresponding to the main rope section.

In S405, the control panel 180 determines whether or not the inspection position is calculated for all floors of the inspection target. When it is determined that the inspection position is calculated for all the floors of the inspection object, the control panel 180 ends the process, and when it is determined that the inspection position is not calculated for any of the floors of the inspection object, the process proceeds to S403.

Fig. 5 is a diagram showing an example of a processing flow relating to a marking operation.

At S501, the maintenance person 103 moves to the top of the elevating channel 101. For example, the maintenance person 103 ascends from the hall 102 to the car 112, connects the maintenance tool 104 to the tool box 114 via the 2 nd communication cable 182, operates the maintenance tool 104, and moves to the top of the hoistway 101 at a low speed operation.

In S502, the maintenance person 103 operates the maintenance tool 104 to set the inspection mode for the control unit 180-3 of the control panel 180. The inspection mode is a mode in which the traveling pattern of the car 110 is controlled so that the car 110 is stopped at the inspection position. When the inspection operation mode is set, for example, when the control panel 180 is operated at a low speed and is operated downward, control is performed to stop the car 110 at the inspection position stored in the control panel 180.

At S503, the maintenance person 103 moves the car 110 to the inspection position. For example, the maintenance person 103 operates the maintenance tool 104 (presses a button, an icon, or the like for moving to the next inspection position) and moves the car 110 downward at a low speed until automatically stopping at the inspection position stored in the control panel 180.

At S504, the maintenance person 103 reads the main rope section including the inspection site from the maintenance tool 104. For example, when the car 110 is stopped at the inspection position, information indicating a main rope section (the main rope 130 to be marked) corresponding to the inspection position is displayed on the maintenance tool 104. For example, a screen showing the structure of the lifting path 101 as seen from above as shown in fig. 3 is displayed on the maintenance tool 104, and an image showing the main slings 130 (the main slings 130-1 of the 1 st main sling section 201, the main slings 130-2 of the 2 nd main sling section 202, or the main slings 130-3 of the 3 rd main sling section 203) to be marked is highlighted on the screen.

The method of outputting the information indicating the main rope 130 to be marked is not limited to the above. For example, when the car 110 is stopped at the inspection position, the car buzzer may notify the maintenance person 103 of the main rope section at which the inspection position occurs in a predetermined sound pattern.

With the above configuration, the maintenance person 103 can know which one of the 1 st main rope section 201, the 2 nd main rope section 202, and the 3 rd main rope section 203 can be serviced.

In S505, the maintenance person 103 sets the flag 131 at the inspection site of the main rope 130 read from the maintenance tool 104 in S504. At this time, the maintenance person 103 may set the flag 131 to indicate the inspection range. The inspection range is set to, for example, a range of 500mm above and below the center point 205, that is, a range of 1m centered on the center point 205.

In S506, the maintenance person 103 confirms whether or not the marking operation is performed on all floors to be overhauled. When the maintenance person 103 performs the marking operation on all the floors of the maintenance object, the marking is ended, and when the maintenance person 103 does not perform the marking operation on all the floors of the maintenance object, the processing shifts to S503 to perform the marking operation on the floors of the next maintenance object.

Fig. 6 is a diagram showing an example of processing of the control panel 180 related to the marking operation. This process starts, for example, when the maintenance person 103 performs an operation of the maintenance tool 104 in S503.

At S601, the control panel 180 determines whether or not the maintenance mode is the inspection mode. When the control panel 180 determines that the maintenance mode is not established, the process proceeds to S602, and when the maintenance mode is determined not to be established, the process ends.

At S602, the control panel 180 moves the car 110 to the inspection position. For example, the control panel 180 uses position information indicating the position of the car 110 managed by the control unit 180-3 to control the car 110 to move to the inspection position nearest to the lower side of the position.

At S603, the control panel 180 determines whether or not the car 110 is automatically stopped. The control panel 180 shifts the process to S604 when it is determined that the car 110 is automatically stopped, and returns the process to S603 when it is determined that the car 110 is not automatically stopped.

At S604, the control panel 180 notifies the maintenance tool 104 of information indicating the main rope section corresponding to the inspection position where the automatic stop is performed, and ends the process.

Here, the configuration of the device according to the present embodiment is not limited to the configuration shown in fig. 1. For example, the structure shown in fig. 7 may be adopted, or other structures may be adopted.

In the case of the configuration shown in fig. 7, the control panel 180 calculates the amount of movement of the car 110 up to the same height as the height at which the main rope 130 can be inspected on the car 112 by moving the part (inspection part) suspended from the rope sheave 161 and the like by the car 110 until the car 110 stops, based on the position information of the rope sheave 161 and the like and the height information at which the main rope 130 can be inspected on the car 112.

At this time, when the size (diameter or the like) of the sheave 161 or the like is set, the control panel 180 can calculate the movement amount more accurately. When the height of the car 110 at the time of stopping the car 110 is set, the control panel 180 can more accurately calculate the height of the car 110 when the inspection site is the same as the height of the main suspension 130 that can be inspected. Further, by restricting the movable ranges of the main rope 130 and the car 110, the control panel 180 can calculate in which main rope section the aforementioned cross-over conditional expression occurs.

For example, in the case where the roping (roping) method is 2:1 roping, if the movement amount of the car 110 is Z, the movement amount of the main sling 130 is 2×z. Therefore, when the center point 205 of the overlap allowance 204 of the main rope 130 in a state where the car 110 is stopped at a position +x above the lowermost hall 102-1 is clear from the diameter and positional relationship of the sheave 161 and the sheave (in this example, the counterweight sheave 140) on which the main rope 130 is suspended, the position Y of the car 110 when the center point 205 is staggered from a position +α above the handrail 113 of the upper car 112 can be calculated from X. That is, the position Y (inspection position) at which the car 110 automatically stops is calculated by giving the diameter and positional relationship of the sheave 161 and the sheave, and X. Further, by restricting the possible range of movement of the main rope 130 and the car 110, the above-described condition expression of the crossing can be calculated in which main rope section is generated.

When the equipment for lifting and lowering the car 110 is arranged as shown in fig. 7, when the diameter of the sheave 161 and the height of the sheave 161 from the lowest hall 102-1 are clear, the movement amount of the main sling 130 is 2×z when the car 110 is Z-moved, and therefore the position (position from the lowest hall 102-1) after the center point 205 of the overlap allowance 204 of the main sling 130 is moved is known.

For example, the sheave 161 is located 10000mm from the lowest hall 102-1, the sheave 161 diameter is 400mm, and the movement amount z= +1000mm from the position (x=0) of the lowest hall 102-1 of the car 110. At this time, the center point 205 of the overlap allowance 204 of the main suspension 130 is shifted toward the counterweight 120 side by 2×1000=2000 mm. Therefore, the position of the center point 205 of the overlap allowance 204 in the sheave 161 after the movement can be found as the height +10000- (2×1000-400×pi/4) of the lowest hall 102-1. Similarly, the position of the car 110 is a position shifted by 1,000 mm from the lowest hall 102-1.

In this way, since the position of the main rope 130 and the position of the car 110 can be calculated, the relational expression between X and Y can be obtained on the condition that the positions of both are equal at the time of the crossing.

Further, if the possible range of movement of the car 110 is from the lowest hall 102-1 to the uppermost hall 102-3, a conditional expression of 0.ltoreq.y.ltoreq.st can be obtained for the obtained Y, and therefore, it is possible to determine where to interleave the main sling sections based on the conditional expression.

According to the present embodiment, the main sling can be easily inspected regardless of the installation position of the traction machine.

(II) additional notes

The above-described embodiments include the following, for example.

In the above-described embodiment, the case where the present invention is applied to an elevator system has been described, but the present invention is not limited to this, and various other systems, apparatuses, methods, and programs can be widely applied.

In the above embodiment, the case where the maintenance person sets the parameters related to the inspection position in S401 has been described, but the present invention is not limited to this. For example, at the time point before S401, a part or all of the parameters related to the maintenance position may be set by a maintenance person or a person other than the maintenance person.

In the above embodiment, the case where the control panel 180 determines the main rope section based on the parameter in S402 has been described, but the present invention is not limited to this. For example, the main rope section may be determined and set by a person (for example, a maintenance person).

In the above embodiment, the output of information is not limited to display on a display. The output of the information may be an audio output by a speaker, an output to a document, printing by a printing device on a paper medium or the like, projection by a projector on a screen or the like, or other means.

In the above description, information such as programs, tables, and files for realizing the respective functions may be placed in a storage device such as a memory, a hard disk, and an SSD (Solid State Drive ), or a recording medium such as an IC card, an SD card, and a DVD.

The above-described embodiment has, for example, the following characteristic structure.

(1)

An elevator system (e.g., the elevator system 100) for performing maintenance of a portion of a sling (e.g., a main sling 130) wound around a hoisting machine (e.g., the hoisting machine 160) on a floor to be maintained, comprising: a calculating unit (e.g., a calculating unit 180-1, a control panel 180, and a circuit) that calculates an inspection position, which is a stop position of the car when the inspection of the portion of the sling is performed, based on position information of the hoisting machine and position information of the car (e.g., the car 110) when the car is stopped at the floor of the inspection target; a storage unit (e.g., a storage unit 180-2, a control panel 180, and a circuit) that stores the inspection position calculated by the calculation unit; and a control unit (e.g., control unit 180-3, control panel 180, circuit) for moving the car based on the inspection position stored in the storage unit.

In the above configuration, for example, the maintenance person can calculate the inspection position by setting the position information of the hoisting machine and the car, and the car can stop at the inspection position, so that it is not necessary to visit the hoisting machine and set a mark in advance at the inspection position, and the hoisting rope can be inspected regardless of the set position of the hoisting machine. In addition, according to the above configuration, for example, even if a flag is not provided in the sling, the car automatically stops at the inspection position, and thus maintenance personnel can inspect the sling.

(2)

The elevator system is provided with a counterweight (e.g., counterweight 120) for balancing the weight of the elevator car, a 1 st sheave (e.g., a car-side top sheave 150-1) is provided on the elevator car side, a 2 nd sheave (e.g., a counterweight-side top sheave 150-2) is provided on the counterweight side, both ends of the rope are supported on the top of a hoistway (e.g., hoistway 101), the rope is suspended in one of a sheave (e.g., a car lower sheave 170) of the elevator car, the 1 st sheave, a sheave (e.g., sheave 161) of the hoisting machine, the 2 nd sheave, and a sheave (e.g., counterweight sheave 140) of the counterweight, and the calculation unit determines which of a 1 st rope section (e.g., a 1 st main rope section 201) between the 1 st sheave and the sheave, a 2 nd rope section (e.g., a 2 nd main rope section 202) between the sheave and the 2 nd sheave, and a 3 rd section (e.g., a 3 rd main rope section 203) between the 2 nd sheave and the sheave of the counterweight are included.

In the above configuration, the portion of the rope to be inspected among the ropes arranged in the plurality of pulley arrangements is determined as the rope arranged in which rope section. According to the above configuration, for example, when outputting information indicating the 1 st rope section, the 2 nd rope section, or the 3 rd rope section, a maintenance person can easily grasp where the rope should be inspected.

(3)

The elevator system includes an interface unit (e.g., an interface unit 180-4, a control panel 180, and a circuit) that can communicate with a maintenance tool (e.g., the maintenance tool 104), and when the car is moved to the inspection position by the control unit based on a movement instruction to the inspection position from the maintenance tool, the interface unit notifies the maintenance tool of information indicating the rope section specified by the calculation unit (see, for example, fig. 1 and 6).

According to the above configuration, for example, when a maintenance person gets on the upper side of the car and moves to the inspection position, the maintenance person displays information indicating the rope section of the inspection object on the maintenance tool, and therefore, a mark can be provided on the rope of the rope section of the inspection object, and the inspection of the rope at a later stage can be easily performed.

(4)

The elevator system includes an interface part (e.g., an interface part 180-4, a control panel 180, and a circuit) that can communicate with a maintenance tool (e.g., a maintenance tool 104), the interface part receives information from the maintenance tool indicating a height (e.g., a parameter H1) from a floor surface of a lowermost hall to a lower end of the hoisting machine, a height (e.g., a parameter H2) from the lower end of the hoisting machine to a sheave core of the sheave, a height (e.g., a parameter H3) from the sheave core to a position where the rope protrudes outside the hoisting machine, a height (e.g., a parameter H5-parameter α) from a floor surface of the car to an armrest on the car, a height (e.g., a parameter α) from the armrest on the car to a center point indicating a center of an overlapping allowable amount of the rope and the rope in the floor of the maintenance object, and a length (e.g., a parameter L2) of the rope hung on the sheave, and the calculation part determines a section of the rope 1 from the interface part to which the rope is received and the first section 2 of the rope is included.

(5)

The elevator system includes an interface (e.g., interface 180-4, control panel 180, and circuit) that can communicate with a maintenance tool (e.g., maintenance tool 104), a counterweight (e.g., counterweight 120) for balancing the weight of the car is provided, a 1 st sheave (e.g., car-side top sheave 150-1) is provided on the car side, a 2 nd sheave (e.g., counterweight-side top sheave 150-2) is provided on the counterweight side, both ends of the suspension rope are supported on the top of a hoistway (e.g., hoistway 101), the suspension rope is suspended on the sheave (e.g., car lower sheave 170) of the car, the 1 st sheave, a sheave (e.g., sheave 161) of the hoisting machine, the 2 nd sheave, and a sheave (e.g., counterweight sheave 140) of the counterweight, and the calculating unit calculates a stop position of the car when the maintenance of a portion of the suspension rope is performed based on information received by the interface.

According to the above configuration, for example, a maintenance person can set position information of the hoisting machine and the car via the maintenance tool at the site of maintenance.

(6)

The interface unit receives information indicating a height (e.g., parameter X) from a floor plane of a lowest hall to a floor plane of the car when the car is stopped at the floor of the maintenance target, a height (e.g., parameter H1) from a floor plane of a lowest hall to a lower end of the hoisting machine, a height (e.g., parameter H2) from a lower end of the hoisting machine to a sheave core of the sheave, a height (e.g., parameter H5-parameter α) from a floor plane of the car to an armrest on the car, a height (e.g., parameter α) from an armrest on the car to a center point (e.g., parameter α) indicating an allowable amount of overlap between the sheave and the sling in the floor of the maintenance target, and a length (e.g., parameter L2) of the sling suspended from the floor plane of the lowest hall, and the calculation unit calculates information indicating a position of the elevator rope between the 1 st sheave and the section or the section between the sling and the rope or the section 2 from the position of the elevator car at the interface unit.

According to the above configuration, for example, when the portion of the rope that is erected and arranged among the ropes of the plurality of pulleys and is subjected to maintenance is the 1 st rope section or the 2 nd rope section, the maintenance position can be calculated.

(7)

The interface unit receives, from the maintenance tool, information indicating a height (e.g., parameter X) from a floor plane of a lowermost hall to a floor plane of the car, a height (e.g., parameter H4) from a core of the 2 nd sheave to a top of a hoistway, a height (e.g., parameter H5-parameter α) from a floor plane of the car to an armrest on the car, a height (e.g., parameter L2) from the armrest on the car to a center point (e.g., parameter α) indicating a center of an overlap allowance of the rope sheave and the rope sheave in the floor of the maintenance target, a height (e.g., parameter ST) from a floor plane of the lowermost hall to a floor plane of the uppermost hall, a height (e.g., parameter OH) from a floor plane of the uppermost hall to a top of a hoistway, a length (e.g., parameter L2) of the rope sheave suspended from the rope sheave to the armrest on the car, a length (e.g., parameter L3) of the rope sheave suspended from the rope sheave to the rope sheave on the maintenance position, and a length (e.g., parameter L3) of the rope sheave suspended from the rope sheave on the elevator 2, and a position of the elevator sheave on the interface unit at the maintenance position of the elevator 2, and the interface unit is calculated from the information.

According to the above configuration, for example, when the portion of the rope for inspection, which is suspended from the ropes of the plurality of pulleys, is the 3 rd rope section, the inspection position can be calculated.

(8)

A counterweight (e.g., counterweight 120) for balancing the weight of the car is provided, the hoisting machine is provided at a position higher than the floor plane of the uppermost hall, and both ends of the hoisting rope are supported at the top of the hoistway (e.g., hoistway 101).

According to the above configuration, for example, even if the hoisting machine is not provided at the lowest floor, maintenance personnel can easily inspect the slings.

(9)

The calculation unit calculates an inspection position, which is a stop position of the car when the inspection of the portion of the hoisting rope is performed, based on the position information of the hoisting machine, the dimensional information (e.g., parameter D1) of the sheave of the hoisting machine, and the position information of the car when the car is stopped at the floor of the inspection target (see, for example, fig. 7).

According to the above configuration, for example, the calculation unit can calculate the movement amount of the inspection portion more accurately by using the dimensional information of the sheave.

(10)

The calculation unit calculates an inspection position, which is a stop position of the car when the inspection of the portion of the hoisting rope is performed, based on the position information of the hoisting machine, the height information of the car (for example, parameter H5), and the position information of the car when the car is stopped at the floor of the inspection target (for example, refer to fig. 7).

According to the above configuration, for example, a maintenance person can set a maintenance position at which maintenance is easy by setting a desired height.

The above-described configuration may be modified, adapted, combined, or omitted as appropriate within the scope of the gist of the present invention.

Items contained in the list in such a form of "at least 1 of A, B, and C" are intended to be understood to mean (a), (B), (C), (a and B), (a and C), (B and C) or (A, B, and C). Likewise, an item listed in the form of "at least 1 of A, B, or C" can mean (a), (B), (C), (a and B), (a and C), (B and C), or (A, B, and C).

Claims (11)

1. An elevator system for performing maintenance of a portion of a sling wound around a hoisting machine at a floor to be maintained, the elevator system comprising:

a calculation unit that calculates an inspection position, which is a stop position of the car when the inspection of the portion of the hoisting rope is performed, from position information of the hoisting machine and position information of the car when the car is stopped at the floor of the inspection target;

a storage unit that stores the inspection position calculated by the calculation unit; and

And a control unit that moves the car based on the inspection position stored in the storage unit.

2. An elevator system according to claim 1, characterized in that,

the elevator system is provided with a counterweight for balancing the weight of the car,

a 1 st pulley is arranged on the car side, a 2 nd pulley is arranged on the counterweight side,

the ends of the slings are supported at the top of the hoistway,

the sling is erected on the pulley of the lift car, the 1 st pulley, the rope pulley of the traction machine, the 2 nd pulley and the pulley of the counterweight,

the calculation unit determines which of a 1 st rope section located between the 1 st sheave and the sheave, a 2 nd rope section located between the sheave and the 2 nd sheave, and a 3 rd rope section located between the 2 nd sheave and the sheave of the counterweight is included in a part of the rope.

3. An elevator system according to claim 1, characterized in that,

the elevator system is provided with an interface part capable of communicating with a maintenance tool,

when the car is moved to the inspection position by the control unit based on a movement instruction to the inspection position from the maintenance tool, the interface unit notifies the maintenance tool of information indicating the rope section determined by the calculation unit.

4. An elevator system according to claim 2, characterized in that,

the elevator system is provided with an interface part capable of communicating with a maintenance tool,

the interface unit receives information from the maintenance tool indicating a height from a floor surface of a lowermost hall to a lower end of the hoisting machine, a height from the lower end of the hoisting machine to a sheave core of the sheave, a height from the sheave core to a position from the sling to an outside of the hoisting machine, a height from a floor surface of the car to an upper handrail of the car, a height from the upper handrail of the car to a center point indicating a center of an overlapping allowance of the sheave and the sling in a floor of the maintenance object, and a length of the sling hanging on the sheave, which are heights when the car is located at the maintenance position,

the calculation unit determines which of the 1 st rope section, the 2 nd rope section, and the 3 rd rope section the part of the rope is included in, based on the information received by the interface unit.

5. An elevator system according to claim 1, characterized in that,

the elevator system is provided with an interface part capable of communicating with a maintenance tool,

The elevator system is provided with a counterweight for balancing the weight of the car,

a 1 st pulley is arranged on the car side, a 2 nd pulley is arranged on the counterweight side,

the ends of the slings are supported at the top of the hoistway,

the sling is erected on the pulley of the lift car, the 1 st pulley, the rope pulley of the traction machine, the 2 nd pulley and the pulley of the counterweight,

the calculation unit calculates an inspection position, which is a stop position of the car when the inspection of the portion of the sling is performed, based on the information received by the interface unit.

6. The elevator system of claim 5, wherein,

the interface unit receives information from the maintenance tool indicating the height from the floor surface of the lowest hall to the floor surface of the car, the height from the floor surface of the lowest hall to the lower end of the hoisting machine, the height from the lower end of the hoisting machine to the sheave core of the sheave, the height from the floor surface of the car to the handrail on the car, the height from the handrail on the car to the center point indicating the center of the overlap allowance of the sheave and the sling in the floor of the maintenance object, and the length of the sling hanging on the sheave, when the car is at the maintenance position,

When the part of the rope is located in the 1 st rope section between the 1 st sheave and the sheave or the 2 nd rope section between the sheave and the 2 nd sheave, the calculation unit calculates an inspection position, which is a stop position of the car when the part of the rope is inspected, based on the information received by the interface unit.

7. The elevator system of claim 5, wherein,

the interface unit receives information indicating, from the maintenance tool, a height from a floor plane of a lowest hall to a floor plane of the car when the car stops at the floor of the maintenance object, a height from a core of the 2 nd sheave to a top of a hoistway, a height from a floor plane of the car to a handrail on the car, a height from the handrail on the car to a center point of an overlapping allowance of the sheave and the sling in the floor of the maintenance object, a height from a floor plane of the lowest hall to a floor plane of the highest hall, a height from a floor plane of the highest hall to a top of a hoistway, a length of the sling hanging on the sheave, a length of the sling from the sheave to the 2 nd sheave, and a length of the sling hanging on the 2 nd sheave, as a height when the car is located at the maintenance position,

When the part of the sling is located in the 3 rd sling section between the 2 nd pulley and the pulley of the counterweight, the calculation unit calculates a stop position of the car, that is, an inspection position when the part of the sling is inspected, based on the information received by the interface unit.

8. An elevator system according to claim 1, characterized in that,

the elevator system is provided with a counterweight for balancing the weight of the car,

the traction machine is disposed at a position higher than the floor plane of the uppermost hall,

the ends of the slings are supported at the top of the hoistway.

9. An elevator system according to claim 1, characterized in that,

the calculation unit calculates an inspection position, which is a stop position of the car when the inspection of the portion of the hoisting rope is performed, based on position information of the hoisting machine, size information of a sheave of the hoisting machine, and position information of the car when the car is stopped at the floor of the inspection target.

10. An elevator system according to claim 1, characterized in that,

the calculation unit calculates an inspection position, which is a stop position of the car when the inspection of the portion of the hoisting rope is performed, based on the position information of the hoisting machine, the height information of the car, and the position information of the car when the car is stopped at the floor of the inspection target.

11. A rope maintenance method for performing maintenance of a part of a rope wound around a hoisting machine on a floor to be maintained, the rope maintenance method comprising:

a calculation unit that calculates an inspection position, which is a stop position of the car when the inspection of the portion of the hoisting rope is performed, from position information of the hoisting machine and position information of the car when the car is stopped at the floor of the inspection target;

a storage unit that stores the inspection position calculated by the calculation unit; and

the control unit moves the car based on the inspection position stored in the storage unit.