KR20230084760A - Drive chain length change detection system by changing the distance of the baseboard of the escalator and method using the same - Google Patents

Abstract

The present invention includes a drive unit connected to a terminal gear and a drive chain; a base substrate coupled to a lower portion of the driving unit through an upper surface; a distance measuring unit configured to collect substrate distance information about a distance to the base substrate; And when receiving the substrate distance information, a control unit for calculating chain extension length information for the extended length of the drive chain based on this, the driving chain length change detection system through the base substrate distance change of the escalator, and It's about how.

Description

Drive chain length change detection system and method through change of base board distance of escalator

The present invention relates to a system and method for detecting a change in the length of a driving chain through a change in the distance of a base substrate of an escalator.

In general, an escalator is installed in a motorized stair structure to perform an inclined movement to move a passenger on a lower floor to an upper floor.

1 is a diagram for explaining an existing escalator system 100. As shown, in the conventional escalator system 100, the step 180 of the stair structure on which passengers can step is continuously driven upward by the rotation of the step chain 170 located at the bottom.

The driving unit for providing driving force to the step 180 is composed of a motor 110, a reduction gear 120, and a drive sprocket 130. The motor 100 generates rotational force by electrical supply, and the reduction gear 120 may control the degree of rotational force generated by the motor 110 . This controlled rotational force may be transmitted to the drive sprocket 130 .

The drive sprocket 130 may be connected to the terminal gear 150 coupled with the step chain sprocket 160 through the drive chain 140 .

That is, the driving force generated by the driving unit may be transmitted to the step chain 170 through the driving chain 140 to perform the rotational movement of the step 180 .

In such an existing escalator system 100, a problem occurs in that the drive chain 140 is stretched according to continuous rotational driving. The drive chain 140 is made of a metal material, and in a state where it is wound to connect the drive sprocket 130 and the terminal gear 150 to each other, a problem occurs in that the length is longer than the initial length due to durability degradation or the like due to continuous rotation.

When the drive chain 140 is stretched, the driving force transmitted from the drive unit may not be stably transmitted to the step chain sprocket 160, and when the length of the extension exceeds the reference value, breakage of the drive chain 140 occurs Problems leading to major accidents may occur.

However, since the driving chain 140 is installed inside the escalator system 100 and the degree of slack must depend on the inspector's subjective inspection result, there is no means to objectively determine this, so an alternative to this is required.

An object of the present invention is to provide a system and method for detecting a change in length of a drive chain through a change in distance of a base substrate of an escalator capable of automatically calculating an extended length of a drive chain according to a change in tension of a drive chain.

A drive chain length change detection system through a base substrate distance change of an escalator according to an embodiment of the present invention for realizing the above object includes a drive unit connected to a terminal gear and a drive chain; a base substrate coupled to a lower portion of the driving unit through an upper surface; a distance measuring unit configured to collect substrate distance information about a distance to the base substrate; and a control unit configured to calculate chain extension length information for an extended length of the drive chain based on the board distance information received.

Here, a support unit supporting a lower portion of the base substrate so that the base substrate can move horizontally through an upper surface may be further included.

Here, a tension adjusting unit formed on one side of the support unit to adjust the tension of the drive chain by moving the base substrate in a horizontal direction, wherein the distance measuring unit is located on the opposite side of the tension adjusting unit. It may be installed on the other side of the support unit.

Here, the substrate distance information includes reference distance information regarding the distance between the distance measuring unit and the base substrate in a normal state of the drive chain, and the distance in a state in which the position of the base substrate is changed by the tension control unit. It may include change distance information about the distance between the measurement unit and the base substrate.

Here, the control unit may calculate the chain extension length information by comparing the change distance information with the reference distance information.

Here, the control unit calculates the chain extension length information by subtracting the change distance information from the reference distance information when the tension adjusting unit is located in the first direction, which is one side of the support unit where the terminal gear is located. can do.

Here, the control unit subtracts the reference distance information from the change distance information when the tension adjusting unit is located in the second direction, which is the other side of the support unit, which is opposite to the first direction. information can be derived.

Here, the control unit may compare the chain extension length information with a reference value, determine that a replacement of the drive chain is required, and generate inspection request information for this when the chain extension length information is out of the reference value.

Here, it may further include an inspection alarm unit having at least one of a communication unit for receiving and transmitting the inspection request information to an inspector's terminal and an output unit for outputting the communication unit.

Here, the tension control unit may include a tension coupling part extending in a height direction from one side of the support unit facing the terminal gear; and a tension adjusting bolt having one end coupled to one side of the base substrate facing the terminal gear and the other side extending to be coupled through the tension coupling portion, and moving the base substrate from the tension coupling portion in a horizontal direction according to rotation; can include

Here, the distance measurement unit may include a measurement coupling portion extending in a height direction from the other side of the support unit so as to be symmetrical with the tension coupling portion; and a distance measuring sensor coupled to the measuring coupler to collect distance information of the substrate so as to face the other side of the base substrate located in a direction opposite to the tension adjusting bolt.

Here, it further includes a distance adjusting unit that is coupled to the tension adjusting unit, moves the tension adjusting unit by a driving force, and collects tension distance information about a moving distance of the tension adjusting unit, wherein the control unit controls the tension The chain extension length information may be calculated based on the distance information.

A drive chain length change detection system through a base substrate distance change of an escalator according to another embodiment of the present invention for realizing the above object includes a drive unit connected to a terminal gear and a drive chain; a base substrate coupled to a lower portion of the driving unit through an upper surface; a distance measuring unit configured to collect driving distance information about a distance to the driving unit; and a control unit configured to calculate chain extension length information for an extended length of the drive chain based on the received driving distance information.

In another embodiment of the present invention for realizing the above object, a method for detecting a change in the length of a drive chain through a change in the distance of a base substrate of an escalator is coupled to a lower portion of a drive unit connected to a terminal gear and a drive chain through an upper surface. measuring substrate distance information about a distance to a base substrate to be a distance measuring unit; and calculating, by a control unit, chain extension length information for the extended length of the drive chain based on receiving the substrate distance information.

Here, the step of measuring substrate distance information about the distance from the lower part of the driving unit connected to the terminal gear and the driving chain to the base substrate coupled through the upper surface with a distance measuring unit, the driving unit through the distance measuring unit. collecting reference distance information about the distance between the distance measurement unit and the base substrate when the chain is in a steady state; And a tension control unit formed to move the base substrate in a horizontal direction by being coupled to a support unit supporting the lower portion of the base substrate so that the base substrate can move horizontally through an upper surface in a direction opposite to the distance measuring unit. and collecting change distance information about a distance between the distance measuring unit and the base substrate in a state in which the base substrate is moved and the tension of the driving chain is adjusted by the operation of the base substrate.

Here, the step of receiving the substrate distance information by the control unit and calculating chain extension length information for the extended length of the driving chain based on the received distance information, wherein the control unit performs a positional relationship between the distance measuring unit and the tension adjusting unit. It may include the step of determining.

Here, the step of the control unit receiving the board distance information and calculating the chain extension length information for the extended length of the driving chain based on this, the control unit determines that the positional relationship, the tension adjusting unit The method may further include calculating the delay extension length information by subtracting the change distance information from the reference distance information when the terminal gear is located in the first direction, which is one side of the support unit where the terminal gear is located.

Here, the step of the control unit receiving the board distance information and calculating the chain extension length information for the extended length of the driving chain based on this, the control unit determines that the positional relationship, the tension adjusting unit The method may further include calculating the chain extension length information by subtracting the reference distance information from the change distance information when located in the second direction, which is the other side of the support unit, which is opposite to the first direction.

Here, if the control unit compares the chain extension length information with a reference value and deviates from the reference value, determining that the drive chain needs to be replaced and generating inspection request information therefor; receiving the inspection request information and transmitting it to a communication unit by an inspection alarm unit; and outputting, by the inspection alarm unit, the inspection request information to an output unit.

Here, moving the tension control unit through a distance control unit coupled to the tension control unit; collecting, by a distance adjusting unit, tension distance information about a moving distance of the tension adjusting unit; and calculating, by the control unit, the chain extension length information based on the tension distance information.

According to the drive chain length change detection system and method through the base substrate distance change of the escalator of the present invention having the above-described configuration, the increased length of the drive chain is automatically detected and calculated according to the position change of the base substrate, thereby improving system operation reliability and Efficiency can be further improved.

In addition, since the tension of the drive chain can be adjusted by moving the base substrate through the bolt rotation type tension control unit, convenience of use can be further improved.

In addition, when the increased length of the drive chain exceeds the reference value, it is possible to prevent breakage of the drive chain in advance by guiding an inspection request for this through an external terminal or output unit.

1 is a diagram for explaining the configuration of an existing elevator system 100.
2 is a diagram for explaining the configuration of a system 200 for detecting a change in length of a driving body through a change in the distance of a base substrate of an escalator according to an embodiment of the present invention.
3 is a flowchart illustrating a method for detecting a change in length of a drive chain 230 through a change in distance between a base substrate 240 of an escalator according to another embodiment of the present invention.
4 to 7 are diagrams for explaining a method of calculating chain extension length information when the tension adjusting unit 260 is located in the first direction D1 among the methods of detecting a change in length of FIG. 3 .
8 to 10 are diagrams for explaining a method of calculating chain extension length information when the tension adjusting unit 260 is located in the second direction D2 among the method of detecting a change in length of FIG. 3 .
11 is a diagram for explaining a length change detection system 300 having a distance adjusting unit 310 according to another embodiment of the present invention.

Hereinafter, a system and method for detecting a change in length of a driving chain through a change in the distance of a base substrate of an escalator according to a preferred embodiment of the present invention will be described in detail with reference to the drawings. In this specification, the same or similar reference numerals are assigned to the same or similar components even in different embodiments, and the description is replaced with the first description.

2 is a diagram for explaining the configuration of a system 200 for detecting a change in length of a driving body through a change in the distance of a base substrate of an escalator according to an embodiment of the present invention.

As shown, the drive chain 230 length change detection system 200 (hereinafter, the drive chain length change detection system 200) through the base substrate 240 distance change of the escalator according to the present invention is a base substrate 240 ) It is a system 200 for automatically detecting and calculating the increased length of the drive chain 230 through a change in position. To this end, the present system 200 includes a drive unit 210, a terminal gear 220, a drive chain 230, a base board 240, a support unit 250, a tension control unit 260, a distance measurement unit 270 ), a check alarm unit 280 and a control unit 290 may be included.

The driving unit 210 has the same configuration as the driving unit of the existing escalator system 100 and is a means for transmitting rotational force generated through power supply to the step chain sprocket (Fig. 1, 160 and below omitted). To this end, the driving unit 210 may include a motor 211 , a reduction gear 213 , and a driving sprocket 215 .

The terminal gear 220 is coupled to the step chain sprocket and is a means for transmitting rotational force transmitted from the drive unit 210 to the step chain sprocket. To this end, the terminal gear 220 may be coupled to each other through the driving sprocket 215 of the driving unit 210 and the driving chain 230 . As in this embodiment, the terminal gear 220 may be configured to have a larger diameter than the drive sprocket 215 .

The base substrate 240 may be configured to be horizontally movable while supporting the driving unit 210 . To this end, the base substrate 240 may be formed in a plate shape and coupled to the lower portion of the driving unit 210 through a flat upper surface.

The support unit 250 is a means for supporting the base substrate 240 and extends in a height direction in a state in which the lower portion is fixed to a bottom surface such as the ground or other components, and the lower portion of the base substrate 240 through the upper surface. side can be supported. At this time, the support unit 250 may be configured to horizontally move the base substrate 240 through the top surface. That is, the support unit 250 is not a structure that is fixedly coupled to the base substrate 240, and the base substrate 240 along the upper surface is in the first direction D1 in which the terminal gear 220 is located and the opposite direction. It can be supported so as to move horizontally (straight line) in the second direction D2. Also, although not shown in the present embodiment, the support unit 250 may include a groove or a protruding guide for guiding the horizontal movement of the base substrate 240 . The corresponding groove or protruding guide is formed to have a straight path from the first direction D1 to the second direction D2, guides the base substrate 240 to move along the corresponding straight path, and restricts the movement in other directions. can

In addition, the support unit 250 may include a plurality of first support units 251 and second support units 253 spaced apart from each other to support the base substrate 240 , respectively.

The tension control unit 260 is a means for adjusting the tension of the drive chain 230 and is coupled to one side of the support unit 250 to move the base substrate 240 in a horizontal direction. To this end, the tension control unit 260 may include a tension coupler 261 and a tension adjustment bolt 263 .

The tension coupling part 261 may be formed to extend in a height direction from one side of the support unit 250 in the first direction D1 where the terminal gear 220 is located. Specifically, the tension coupling part 261 may have a curved structure extending in a height direction after extending in a horizontal direction from one side of the support unit 250 . That is, it may have a '┘' shape. At this time, the extended end of the tension coupling part 261 may be formed to have a higher position than the base substrate 240 .

The tension adjusting bolt 263 is a means for horizontally moving the base substrate 240 from the tension coupling part 261 and may be formed of a bolt and screw coupling structure. Specifically, one end of the tension adjusting bolt 263 may be installed to be fixed to the base substrate 240 and the other extended end may be formed to be through-coupled to the tension coupling part 261 . At this time, the tension coupling part 261 may pass through and accommodate the tension adjusting bolt 263 through a through hole having a screw thread. In addition, both sides of the tension adjusting bolt 263 coupled to the tension coupling portion 261 may be coupled and fixed by nuts. Therefore, as the tension adjustment bolt 263 has one end fixedly coupled to the base substrate 240 and the other end rotatably coupled to the tension coupling portion 261, the tension adjustment bolt 263 and the tension coupling portion ( 261) may be horizontally moved in the first direction D1 or the second direction D2 by threaded coupling. At this time, when the tension adjusting bolt 263 is rotated and moved in the second direction D2, the base substrate 240 coupled thereto and the drive unit 210 coupled to the base substrate 240 also rotate in the second direction D2. is moved horizontally to The drive unit 210 is connected to the terminal gear 220 through the drive chain 230, and as a result, tension of the drive chain 230 is reduced when the tension adjusting bolt 263 rotates in the first direction D1. Conversely, when moving in the second direction D2, the tension of the driving chain 230 may be weakened so that the chain may be stretched.

The distance measurement unit 270 is coupled to the support unit 250 located on the opposite side of the tension control unit 260 as a means for collecting substrate distance information about the distance to the base substrate 240, and the base substrate 240 Distance information can be collected. To this end, the distance measurement unit 270 may include a measurement coupler 271 and a distance measurement sensor 273 .

The measurement coupling portion 271 may be coupled to extend in the height direction from the other side of the support unit 250 so as to be symmetrical to the tension coupling portion 261 . In this embodiment, as the tension coupling portion 261 is located in the first direction D1, it is located in the second direction D2, which is the opposite direction thereto, and the shape of the tension coupling portion 261 is formed in '┘'. Accordingly, it may be formed in a symmetric '└' shape.

The distance measuring sensor 273 passes through an end region extending in the height direction of the measurement coupling part 271 and is disposed toward the side surface of the base substrate 240 (opposite surface of the tension control unit 260), and is disposed on the base substrate Substrate distance information that is the distance to (240) can be collected. That is, the distance measurement sensor 273 collects distance information from the base substrate 240 while being fixed to the support unit 250 .

Therefore, the substrate distance information is the reference distance information about the distance between the distance measuring unit 270 and the base substrate 240 in the normal state of the driving chain 230 and the base substrate 240 by the tension adjusting unit 260. It may include change distance information about the distance between the distance measuring unit 270 and the base substrate 240 in a state where the position of is changed. In other words, before the driving chain 230 is driven after the distance measuring sensor 273 is installed, or in a state where the tension of the driving chain 230 is set to the standard tension, the reference distance information can be collected. Thereafter, when the position of the base substrate 240 is changed through the tension control unit 260 according to the change in tension of the driving chain 230, change distance information may be collected according to the corresponding position change.

The distance measuring sensor 273 includes an ultrasonic sensor, an infrared sensor, a lidar sensor, a radar sensor, a passive sensor, and a limit switch ( Limit Switch) may include at least one sensor.

The inspection alarm unit 280 is a means for outputting inspection request information to an inspector terminal or visual/audible information when inspection request information is received from a control unit 290 to be described later. The inspection request information is information for notifying that the extended length of the drive chain 230 exceeds a reference value and requires inspection such as replacement. In order to notify this, the inspection alarm unit 280 includes at least one of a communication unit and an output unit, and transmits inspection alarm information to an inspector's terminal or a management server through the communication unit, or checks through an output unit including a display unit and a speaker. Alarm information can be output as an image or sound.

The control unit 290, as a means for controlling the above-described components, first calculates chain extension length information for the extended length of the drive chain 230 based on the substrate distance information received from the distance measurement unit 270. can do.

Specifically, when substrate distance information is received, the control unit 290 may calculate chain extension length information by comparing existing distance information and changed distance information included therein. At this time, the control unit 290, as in the present embodiment, the tension adjusting unit 260 is located in the first direction D1, which is one side of the support unit 250 where the terminal gear 220 is located, and the distance measuring unit 270 is located there. When located in the second direction D2, which is the opposite direction, chain extension length information may be calculated by subtracting change distance information from reference distance information.

Conversely, when the tension adjusting unit 260 is located in the second direction D2 and the distance measurement unit 270 is located in the first direction D1, the chain extension length information is obtained by subtracting the reference distance information from the change distance information. can be calculated

The difference in the chain extension length information calculation method is caused by the fact that the distance of the base substrate 240 changes according to the position of the tension adjusting unit 260 .

First, the control unit 290, as in this embodiment, when the tension adjusting unit 260 is located in the first direction (D1), the initial drive chain 230 in a normal state, collected through the distance measuring unit 270 Reference distance information may be received. Then, when the driving chain 230 is extended, the base substrate 240 may be moved through the tension adjusting unit 260 . At this time, when the tension adjusting bolt 263 is rotated in the second direction D2, the base substrate 240 coupled to the tension adjusting bolt 263 moves in the second direction D2. Since the base substrate 240 is coupled with the driving unit 210 and the driving unit 210 is connected to the terminal gear 220 through the driving chain 230, the second direction away from the terminal gear 220 ( The tension of the driving chain 230, which is stretched as it moves to D2), can be adjusted.

When the tension adjustment for the increased drive chain 230 is completed, change distance information may be collected through the distance measurement unit 270 . As the base substrate 240 is moved more toward the distance measuring unit 270 for tension control than when the driving chain 230 is in a normal state, the change distance information becomes shorter than the reference distance information, and as much as this shortened distance Since it means that the length of the drive chain 230 is extended, chain extension length information can be calculated by subtracting the change distance information from the reference distance information.

Conversely, when the tension control unit 260 is located in the second direction D2 opposite to the terminal gear 220, the base substrate 240 is moved in the second direction D2 when the tension of the driving chain 230 is adjusted. As it is moved, the change distance information becomes longer than the reference distance information. Since it means that the length of the drive chain 230 is extended by the increased distance, chain extension length information can be calculated by subtracting the reference distance information from the changed distance information.

In addition, the control unit 290 compares the chain length extension information calculated in the above-described manner with a reference value, determines that a replacement or inspection of the driving chain 230 is required when it is out of the range, and generates inspection request information for this. can do. If the extended length of the drive chain 230 exceeds the reference value, since there is a risk of accident due to breakage, inspection request information for this can be generated and controlled to notify the inspector or passengers using the inspection alarm unit 280. there is.

In the same way, the distance measurement unit 270 collects and controls driving distance information about the distance to the driving unit 210 installed on the base substrate 240, not the distance to the base substrate 240. Unit 290 may calculate chain extension length information based on this. This is a method of applying a different object of distance measurement, and operates in the same way as the above-described distance measurement method, and may be a change of a distance measurement object from the existing base substrate 240 to the driving unit 210 .

Since the driving unit 210 is installed to be fixed on the base substrate 240, when the base substrate 240 moves, the driving unit 210 can also move in the same way. Accordingly, when driving distance information that is distance information from the distance measurement sensor 240 to the driving unit 210 is received, the control unit 290 may calculate chain extension length information based on this.

In this way, according to the drive chain 230 length change detection system 200, the slack state of the drive chain 230 can be automatically detected through a change in the position of the base substrate 240, thereby improving the operation efficiency of the entire system 200. can be further improved. In addition, the calculated chain extension length information is compared with a reference value to determine a state requiring inspection of the driving chain 230, and the convenience of inspection management can be further improved by automatically notifying this.

The above has been described with respect to the overall configuration of the driving chain length change detection system. In FIGS. 3 to 7, an embodiment of an operating method of the corresponding system will be sequentially described.

3 is a flowchart for explaining a method for detecting a change in the length of the drive chain 230 through a change in the distance of the base substrate 240 of the escalator according to another embodiment of the present invention, and FIGS. 4 to 7 are the change in length of FIG. 3 Among the sensing methods, this is a diagram for explaining a method of calculating chain extension length information when the tension adjusting unit 260 is located in the first direction. Detailed drawing symbols are omitted with reference to FIG. 2, and only reference numbers for representative configurations are described.

First, the terminal gear 220 and the driving unit 210 may be connected through the driving chain 230, and the base substrate 240 may be coupled to the lower part of the driving unit 210. Also, the support unit 250 may support the base substrate 240 to be horizontally movable through an upper surface.

On one side of the support unit 250 in the first direction D1 toward the terminal gear 220, a tension adjusting unit 260 capable of adjusting the tension of the driving chain 230 by moving the base substrate 240 in a horizontal direction this is combined

On the other side of the support unit 250, which is the second direction D2 opposite to the tension control unit 260, a distance measurement unit 270 for collecting substrate distance information about the distance to the base substrate 240 is installed. It can be.

The operating method of the system will be described on the premise of the above installation structure.

)를 수집할 수 있다(S11).As shown in FIG. 5 (a), first, reference distance information about the distance to the base substrate 240 through the distance measuring unit 270 in a normal state without the slack of the first driving chain 230 (

) can be collected (S11).

)일 수 있다.The corresponding state may be distance information measured in an initial installation stage in which the driving chain 230 is not changed or in a replacement stage of the driving chain 230 . In this case, the base substrate 240 may be at a position corresponding to the support substrate. That is, it is a state in which there is no positional change in the initial installation state of the base substrate 240 . Therefore, the distance measurement unit 270 measures the distance from the state coupled to the support unit 250 to the base substrate 240 as reference distance information (

) can be.

Next, a phenomenon in which the driving chain 230 is increased may occur as shown in FIG. 5(b) according to the driving of the escalator. The phenomenon that the driving chain 230 is stretched in this way may occur during periodic inspection or may be discovered by inspection according to an abnormal operation of the escalator.

When the drive chain 230 is stretched in this way, the escalator system does not operate smoothly and there is a risk of breakdown and accident, so the inspector can adjust the tension of the drive chain 230 through the tension control unit 260 (S13). .

Tension control is performed by rotating the tension adjusting bolt of the tension adjusting unit 260 as shown in FIG. 6 (a) to move the base substrate 240 in the opposite direction to the terminal gear 220 (second direction D2). can be carried out according to

When the base substrate 240 is moved in the opposite direction (second direction D2) to the terminal gear 220, the distance measuring unit 270 and the base fixed to the support unit 250 in the second direction D2 The length of the substrate 240 is reduced.

)를 수집할 수 있다(S15).Therefore, the distance measurement control unit changes distance information (which is distance information with the base substrate 240 in a state where the tension control is completed)

) can be collected (S15).

)와 구동체인(230)의 장력 조절이 이루어진 후 수집된 변화 거리정보(

)가 수신되면, 제어 유닛은 이들을 통해 체인 연장 길이정보(

)를 산출할 수 있다(S19).Reference distance information collected in the normal state of the drive chain 230 (

) and change distance information collected after the tension of the drive chain 230 is adjusted (

) is received, the control unit through them chain extension length information (

) can be calculated (S19).

)를 산출하기 도 4에서처럼 장력 조절 유닛(260)과 거리 측정 유닛(270)의 위치 관계를 판단할 수 있다(S31). 이는, 장력 조절 유닛(260)과 거리 측정 유닛(270)은 지지 유닛(250)의 반대 방향에서 서로 대칭되도록 배치되는데, 터미널 기어(220)에 대비하여 위치 관계가 변화되는 경우, 체인 연장 길이정보(

)의 산출 방식이 변화될 수 있다.At this time, the control unit is chain extension length information (

) As shown in FIG. 4 , the positional relationship between the tension adjusting unit 260 and the distance measuring unit 270 may be determined (S31). This is because the tension adjusting unit 260 and the distance measuring unit 270 are disposed symmetrically in opposite directions of the support unit 250, and when the positional relationship is changed compared to the terminal gear 220, chain extension length information (

) can be changed.

In this embodiment, a case in which the tension adjusting unit 260 is installed on one side of the support unit 250 in the first direction D1 toward the terminal gear 220 will be described as an example (S33).

)를 산출함에 있어 기준 거리정보(

)에서 변화 거리정보(

)를 감산하는 방식을 적용할 수 있다(S35).In this case, the control unit provides chain extension length information (

) In calculating the reference distance information (

) in the change distance information (

) may be applied (S35).

)에서 장력 조절에 따라 베이스 기판(240)이 제2 방향(D2)으로 이동하여 줄어든 변화 거리정보(

)를 감산한 체인 연장 길이정보(

)를 산출할 수 있는 것이다. 해당 테이블에서처럼 최초 기준 거리정보(

)가 10cm이고, 이후 장력 조절에 따라 측정된 변화 거리정보(

)가 9cm, 8cm, 7cm 순으로 줄어드는 경우, 각 회차에 따른 구동체인(230)이 늘어난 길이는 이들의 감산 결과값인 1cm, 2cm, 3cm로 산출될 수 있다.Therefore, when a plurality of tension adjustments to the drive chain 230 are sequentially performed in the corresponding positional relationship, as shown in FIG. 7, the control unit provides reference distance information (

), the base substrate 240 moves in the second direction D2 according to the tension control, and the reduced change distance information (

) Chain extension length information (

) can be calculated. As in the table, the initial reference distance information (

) is 10 cm, and the change distance information measured according to the tension control (

) is reduced in the order of 9 cm, 8 cm, and 7 cm, the length of the driving chain 230 increased according to each round can be calculated as 1 cm, 2 cm, and 3 cm, which are the result values of these subtractions.

)가 순차적으로 산출되는 중, 제어 유닛은 산출된 체인 연장 길이정보(

)가 기준값을 초과하는지 여부를 판단할 수 있다(S21).Chain extension length information (

) is calculated sequentially, the control unit calculates the chain extension length information (

) can determine whether or not exceeds the reference value (S21).

The reference value may be length information about a limit value of the extended length of the drive chain 230, and if the reference value is exceeded, the drive chain 230 may need to be inspected or replaced.

)가 기준값 5cm를 벗어난 5.1cm인 경우, 제어 유닛은 구동체인(230)의 교체가 요구되는 상황으로 판단하고 이에 대한 점검 요청 정보를 생성할 수 있다(S23).Therefore, as shown in FIG. 7, chain extension length information calculated during the 5th tension adjustment with the reference value set to 5 cm (

) is 5.1 cm out of the reference value of 5 cm, the control unit may determine that the replacement of the drive chain 230 is required and generate inspection request information for this (S23).

The inspection request information generated in this way may be transmitted and output to an inspector's terminal, a management server, a display unit, a speaker, etc. through an inspection alarm unit. Therefore, inspectors, managers, passengers, etc. can recognize the current situation of the escalator and respond to it through the provision of corresponding inspection alarm information.

The foregoing has been described for the case where the tension adjusting unit is located in the first direction among the methods for detecting the change in the length of the driving chain through the change in the distance of the base substrate of the escalator. In FIGS. 8 to 10 , the case where the tension adjusting unit is located in the second direction will be described.

8 to 10 are diagrams for explaining a method of calculating chain extension length information when the tension adjusting unit 260 is located in the second direction D2 among the method of detecting a change in length of FIG. 3 .

) 산출 방식에 관한 것이다.Unlike the previous embodiment, in this embodiment, chain extension length information (

) is about the calculation method.

As shown in FIG. 8 , the control unit may determine the positional relationship between the tension adjusting unit 260 and the distance measuring unit 270 (S41). The corresponding positional relationship may be default information initially set by a manager or inspector when the system is installed.

As a result of determination, unlike the previous embodiment, the tension adjusting unit 260 is installed on the other side of the support unit 250, which is the second direction D2 located in the opposite direction of the terminal unit, and the distance measuring unit 270 is installed in the first direction ( D1) can be installed (S43).

)에서 기준 거리정보(

)를 감산하여 체인 연장 길이정보(

)를 산출할 수 있다(S45).In this case, the control unit changes distance information (opposite to the previous method)

) from the reference distance information (

) by subtracting the chain extension length information (

) can be calculated (S45).

)가 기준 거리정보(

)보다 더 큰 값을 갖게된다.As shown in FIG. 9 , when the tension adjusting unit 260 is in the second direction D2 , the base substrate 240 may be moved in the second direction D2 opposite to the existing one in order to adjust the tension. This is the direction away from the terminal gear 220. Therefore, when the tension is adjusted, the base substrate 240 changes distance information as it moves away from the distance measurement unit 270 (

) is the reference distance information (

) has a larger value than

)는 변화 거리정보(

)에서 기준 거리정보(

)를 감산한 결과값으로 산출되며, 해당 결과값은 구동체인이 늘어난 길이와 대응될 수 있다.Accordingly, as shown in FIG. 10, chain extension length information (

) is the change distance information (

) from the reference distance information (

), and the resulting value may correspond to the increased length of the drive chain.

In this way, the method for detecting the change in the length of the drive chain through the change in the distance of the base substrate 240 of the escalator increases the convenience of overall system operation efficiency by automatically calculating the increased length of the drive chain in a manner corresponding to each installation situation. can be further improved.

11 is a diagram for explaining a length change detection system 300 having a distance adjusting unit 310 according to another embodiment of the present invention.

As shown, the change detection system 300 of this embodiment is generally similar to the system of FIG. 2 ( 200 in FIG. 2 ), but is different in that it includes a distance adjusting unit 310 .

The distance adjusting unit 310 may be coupled to the tension adjusting unit 260 to move it, and may collect tension distance information about a moving distance of the tension adjusting unit 260 according to the corresponding movement. To this end, the distance adjusting unit 310 may include a movement driver 311 and a pulse generator 313 .

The movement actuator 311 is coupled to the tension control unit 260, more specifically, the tension control bolt 263, and rotates it to move it in a straight direction. That is, the movement actuator 311 accommodates the tension adjusting bolt 263 therein and rotates it by power supply to move the tension adjusting bolt 263 in the first direction D1 or the second direction D2. can Therefore, when the movement actuator 311 rotates, the tension adjusting bolt 263 moves in the horizontal direction, and accordingly, the base substrate 240 to which the tension adjusting bolt 263 is coupled also moves in the same way, resulting in the driving chain 230 It is possible to adjust the tension of the

At this time, although not specifically shown in this embodiment, the movement actuator 311 may provide rotational driving force for the tension adjusting bolt 263 in a state in which it is coupled to be fixed to a support member or support unit 250, which is not shown. there is.

The pulse generator 313 may be a means for collecting tension distance information about the movement distance of the tension control bolt 263 according to the driving of the movement driver 311 . To this end, the pulse generator 313 is continuously coupled to the moving actuator 311 and the tension adjusting bolt 263 can be rotatably accommodated in the inner space.

The pulse generator 313 detects a pulse generated when the tension adjusting bolt 263 is rotated and moved by the driving force of the movement driver 311 and calculates the tension distance information through this. In addition, in this embodiment, the pulse generator 313 is exemplified as a means for detecting the movement distance of the tension control bolt 263, but is not limited thereto, and various sensors capable of detecting the movement distance according to process and experimental conditions are used. may be applied.

In this way, when the drive chain 230 is extended, when input information regarding driving of the movement actuator 311 is provided to the control unit (Fig. Rotational driving of the driver 311 can be performed.

For example, when the driving chain 230 is stretched as shown in (b) of FIG. 5, when input information is input, the control unit moves the movement actuator 311 so that the encouraging adjustment bolt 263 can be rotated in the second direction D2. ) can be controlled.

Under the control of the control unit, the movement actuator 311 is rotated in the second direction, and the tension adjusting bolt 263 coupled thereto is rotated and moved in the second direction D2, and accordingly, the tension adjusting boat 263 and The combined base substrate 240 may be moved in the second direction, and tension may be provided so that the driving chain 230 is stretched as a result. At this time, the number of pulses generated when the tension adjusting bolt 263 rotates is detected by the pulse generator 313, and through this, tension distance information, which is the moving distance of the tension adjusting bolt 263, is automatically calculated.

The control unit calculates chain extension length information related to the extended length of the drive chain 230 based on the tension distance information, compares it with reference distance information, and replaces the drive chain 230 when the reference distance information is exceeded. Inspection request information regarding the request may be generated and provided so that the manager recognizes it.

In this way, as the distance adjusting unit 310 capable of adjusting the distance of the driving chain 230 in an electrical manner is provided, management efficiency can be further improved compared to the existing manual work method. In addition, when the distance adjusting unit 310 is provided, since it can replace the distance measuring unit 270, it can be omitted. A change in the length of the driving chain 230 may be detected.

The system and method for detecting a change in length of a driving chain through a change in the distance of the base substrate of the escalator as described above are not limited to the configuration and operation method of the above-described embodiments. The above embodiments can be configured so that various modifications can be made by selectively combining all or part of each embodiment.

,

: 기준 거리정보
215: 구동 스프라켓

: 변화 거리정보
220: 터미널 기어

: 체인 연장 길이정보
230: 구동체인
240: 베이스 기판100: existing escalator system 250: support unit
110: motor 251: first support unit
120: reducer 253: second support unit
130: drive sprocket 260: tension control unit
140: drive chain 261: tension coupling part
150: terminal gear 263: tension adjustment bolt
160: step chain sprocket 270: distance measuring unit
170: step chain 271: measurement joint
190: step 273: distance measuring sensor
200: length change detection system 280: inspection alarm unit
210: drive unit 290: control unit
211: motor 310: distance adjustment unit
213: reducer

,

: Reference distance information
215: drive sprocket

: change distance information
220: terminal gear

: Chain extension length information
230: drive chain
240: base board

Claims (20)

a drive unit connected to a terminal gear and a drive chain;
a base substrate coupled to a lower portion of the driving unit through an upper surface;
a distance measuring unit configured to collect substrate distance information about a distance to the base substrate; and
When receiving the substrate distance information, a control unit for calculating chain extension length information for the extended length of the drive chain based on this; drive chain length change detection system through a change in the distance of the base substrate of the escalator.
According to claim 1,
Further comprising a support unit for supporting the lower portion of the base substrate so that the base substrate can be horizontally moved through the upper surface, the drive chain length change detection system through the distance change of the escalator base substrate.
According to claim 2,
Further comprising a tension control unit formed on one side of the support unit to adjust the tension of the drive chain by moving the base substrate in a horizontal direction,
The distance measurement unit,
Installed on the other side of the support unit located on the opposite side of the tension control unit, the drive chain length change detection system through the change in the distance of the base substrate of the escalator.
According to claim 3,
The substrate distance information,
Reference distance information on the distance between the distance measuring unit and the base substrate in the steady state of the driving chain, and between the distance measuring unit and the base substrate in a state where the position of the base substrate is changed by the tension adjusting unit A system for detecting a change in length of a driving chain through a change in the distance of a base substrate of an escalator, including change distance information on a distance.
According to claim 4,
The control unit,
The drive chain length change detection system through the base substrate distance change of the escalator, which compares the change distance information in the reference distance information to calculate the chain extension length information.
According to claim 5,
The control unit,
When the tension adjusting unit is located in the first direction, which is one side of the support unit where the terminal gear is located, the chain extension length information is calculated by subtracting the change distance information from the reference distance information. Drive chain length change detection system through change.
According to claim 6,
The control unit,
When the tension adjusting unit is located in the second direction, which is the other side of the support unit, which is opposite to the first direction, the escalator for calculating the chain extension length information by subtracting the reference distance information from the change distance information. Drive chain length change detection system through base board distance change.
According to claim 1,
The control unit,
When the chain extension length information is compared with a reference value and it is out of this range, the driving chain length change detection system through the escalator base substrate distance change, which determines that the drive chain needs to be replaced and generates inspection request information therefor.
According to claim 8,
A system for detecting a change in length of a drive chain through a change in the distance of a base substrate of an escalator, further comprising an inspection alarm unit having at least one of a communication unit for receiving the inspection request information and transmitting it to an inspector terminal and an output unit for outputting the same. .
According to claim 3,
The tension control unit,
a tension coupling part formed to extend in a height direction from one side of the support unit facing the terminal gear; and
A tension adjusting bolt having one end coupled to one side of the base substrate facing the terminal gear and the other side extending to be coupled through the tension coupling portion to move the base substrate in a horizontal direction from the tension coupling portion according to rotation. Including, the drive chain length change detection system through the distance change of the base substrate of the escalator.
According to claim 10,
The distance measurement unit,
a measurement coupling portion extending in a height direction from the other side of the support unit so as to be symmetrical with the tension coupling portion; and
Length of the drive chain through the change in the base substrate distance of the escalator; including; a distance measuring sensor coupled to the measurement coupling part to collect the substrate distance information toward the other side of the base substrate located in the opposite direction of the tension adjusting bolt. change detection system.
According to claim 3,
Further comprising a distance adjusting unit that is coupled to the tension adjusting unit, moves the tension adjusting unit by a driving force, and collects tension distance information about a moving distance of the tension adjusting unit,
The control unit,
The drive chain length change detection system through the base substrate distance change of the escalator, which calculates the chain extension length information based on the tension distance information.
a drive unit connected to a terminal gear and a drive chain;
a base substrate coupled to a lower portion of the driving unit through an upper surface;
a distance measuring unit configured to collect driving distance information about a distance to the driving unit; and
In the case of receiving the drive distance information, a control unit for calculating chain extension length information for the extended length of the drive chain based on this; drive chain length change detection system through a distance change of the base substrate of the escalator.
Measuring substrate distance information about a distance to a base substrate coupled through an upper surface of a lower portion of a driving unit connected to a terminal gear and a driving chain with a distance measuring unit; and
A control unit receiving the substrate distance information and calculating chain extension length information for the extended length of the drive chain based on this, a method for detecting a change in length of the drive chain through a change in the distance of the base substrate of the escalator.
According to claim 14,
Measuring substrate distance information about the distance from the lower part of the driving unit connected to the terminal gear and the driving chain to the base substrate coupled through the upper surface with a distance measuring unit,
collecting reference distance information about a distance between the distance measuring unit and the base substrate when the drive chain is in a steady state through the distance measuring unit; and
In a direction opposite to the distance measuring unit, by a tension adjusting unit formed to move the base substrate in a horizontal direction by being coupled to a support unit supporting the lower portion of the base substrate so that the base substrate can move horizontally through the upper surface. Collecting change distance information about the distance between the distance measuring unit and the base substrate in a state in which the base substrate is moved and the tension of the drive chain is adjusted; driving through the change in the distance of the escalator base substrate How to detect chain length change.
According to claim 15,
The step of the control unit receiving the substrate distance information and calculating chain extension length information for the extended length of the drive chain based on this,
A method for detecting a change in length of a drive chain through a change in distance of a base substrate of an escalator, comprising determining, by the control unit, a positional relationship between the distance measuring unit and the tension adjusting unit.
According to claim 16,
The step of the control unit receiving the substrate distance information and calculating chain extension length information for the extended length of the drive chain based on this,
As a result of determining the positional relationship, the control unit subtracts the change distance information from the reference distance information to extend the delay when the tension adjusting unit is located in the first direction, which is one side of the support unit where the terminal gear is located. A method for detecting a change in the length of a drive chain through a change in the distance of a base substrate of an escalator, further comprising calculating length information.
According to claim 17,
The step of the control unit receiving the substrate distance information and calculating chain extension length information for the extended length of the drive chain based on this,
As a result of the determination of the positional relationship by the control unit, when the tension adjusting unit is located in the second direction, which is the other side of the support unit, which is opposite to the first direction, the reference distance information is subtracted from the change distance information. Further comprising calculating the chain extension length information, a method for detecting a change in length of the drive chain through a change in the distance of the base substrate of the escalator.
According to claim 14,
comparing, by the control unit, the chain extension length information with a reference value, determining that the drive chain needs to be replaced and generating inspection request information therefor;
receiving the inspection request information and transmitting it to a communication unit by an inspection alarm unit; and
The step of the inspection alarm unit outputting the inspection request information to an output unit; further comprising a method for detecting a change in the length of the drive chain through a change in the distance of the base substrate of the escalator.
According to claim 15,
moving the tension control unit through a distance control unit coupled to the tension control unit;
collecting, by a distance adjusting unit, tension distance information about a moving distance of the tension adjusting unit; and
The control unit calculates the chain extension length information based on the tension distance information; further comprising a driving chain length change detection system through a change in the base substrate distance of the escalator.

Images