KR20100135114A - A overspeed governor for elevator - Google Patents

A overspeed governor for elevator Download PDF

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Publication number
KR20100135114A
KR20100135114A KR1020090053584A KR20090053584A KR20100135114A KR 20100135114 A KR20100135114 A KR 20100135114A KR 1020090053584 A KR1020090053584 A KR 1020090053584A KR 20090053584 A KR20090053584 A KR 20090053584A KR 20100135114 A KR20100135114 A KR 20100135114A
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KR
South Korea
Prior art keywords
hydraulic
pressure
roller
elevator car
sensor unit
Prior art date
Application number
KR1020090053584A
Other languages
Korean (ko)
Inventor
김영학
Original Assignee
(재)한국승강기안전기술원
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (재)한국승강기안전기술원 filed Critical (재)한국승강기안전기술원
Priority to KR1020090053584A priority Critical patent/KR20100135114A/en
Publication of KR20100135114A publication Critical patent/KR20100135114A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
    • B66B5/044—Mechanical overspeed governors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
    • B66B1/26—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration mechanical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
    • B66B1/28—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical
    • B66B1/32—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on braking devices, e.g. acting on electrically controlled brakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B66B1/3492—Position or motion detectors or driving means for the detector

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Abstract

The present invention is a hydraulic sensor unit consisting of a hydraulic sensor unit for detecting the pressure of the hydraulic fluid that changes in accordance with the rotational speed of the roller and the roller lifting and lowering along the guide rail in engagement with the guide rail that the elevator car is raised and lowered, Comparing the pressure of the hydraulic fluid sensed by the sensor unit with a predetermined critical hydraulic pressure, if the detected hydraulic pressure exceeds the critical hydraulic pressure, the elevator speed governor for judging the elevator car as an overspeed state and emergency braking the elevator car It starts.

According to the present invention, the number and cost of frequent replacement or repair of the governing device can be drastically reduced, and the governing device can be configured in a simpler and simpler combination than the rope type governing device, thereby realizing aesthetic appearance.

Description

Speed governor for elevators {A Overspeed Governor for Elevator}

The present invention relates to an elevator governing device, and more particularly, it can significantly reduce the number and cost of frequent replacement or repair, and can be configured in a simpler and simpler combination than a rope type governing device to implement aesthetically elegant appearance. It relates to an elevator governing device that can be.

In general, with the trend of larger and higher buildings, elevator systems are installed on various high-rise buildings for the purpose of moving space more easily.

In the conventional elevator system, as shown in Fig. 1, the elevator car 13 connected to the main rope 12 wound from the hoist (not shown) installed on the machine room side is lifted, the elevator car 13 The guide rail 14 is installed in the longitudinal direction of the elevating path in which the elec- trically rises and falls to guide the vertical movement of the elevator car 13. Here, an emergency braking device 15 is installed on one side of the elevator car 13 to emergency braking the elevator car 13 in an emergency while in frictional contact with the guide rail 14, and the elevating path of the elevator car 13 is provided. When the governor 17 is installed in the upper machine room, when an abnormal operation state of the elevator car 13, for example, an overspeed condition due to a fall during a safety accident, is detected, the power of the hoisting machine is cut off, and the emergency braking device 15 is It works.

However, in the above-described conventional elevator system, the governor 17 is installed on the machine room side of the elevating path of the elevator system, and the governor rope (not shown) wound on the driving sheave (not shown) of the governor 17. 11, the emergency braking device is fixed by a rope fixing body 18 installed on the upper and lower ends of the elevator car 13, as shown, and connected by a link mechanism 19 connected to the governor rope 11; Due to the implementation of the structure and the operating relationship of braking (15), there is a disadvantage in that the connection and the operating relationship between the governor 17 and the emergency braking device 15 are very complicated, and the installation work is also very cumbersome, so that in case of a failure, replacement and There is a problem that is not easy to repair.

In addition, since the driving sieve and the tension sheave 16 are respectively installed on the upper and lower sides of the hoistway, the governor rope 11 is wound up, requiring much installation space and using an expensive governor rope. So there was a disadvantage that the economic efficiency is very low.

Accordingly, the present invention has been made to solve the above-mentioned conventional problems, and can significantly reduce the number and cost of frequent replacement or repair, and can be configured in a simpler and simpler combination than the rope type governing device, so it is aesthetically pleasing. It is an object of the present invention to provide an elevator governing device that can implement an exterior and effectively provide an accurate and quick emergency braking force in an emergency.

In order to achieve the above object, according to a preferred embodiment of the present invention, the elevator car is engaged with the elevating guide rail to rotate along the guide rail and the elevating roller, and the hydraulic fluid that changes in accordance with the rotational speed of the roller A hydraulic sensor unit comprising a hydraulic pressure sensing unit for detecting a pressure of the hydraulic pressure; and the pressure of the hydraulic oil sensed by the hydraulic sensor unit to be compared with a predetermined critical hydraulic pressure, so that the elevator when the detected hydraulic pressure exceeds the critical hydraulic pressure An elevator governing apparatus for emergency braking the elevator car by judging the speed of the car as an overspeed state is provided.

Preferably, the hydraulic sensor unit further comprises a hydraulic pump operating in correspondence with the rotational speed of the roller, by the pumping operation of the hydraulic pump can generate and detect the pressure of the hydraulic fluid corresponding to the rotational speed of the roller. .

Preferably, the hydraulic sensor unit may further include a hydraulic valve, by opening and closing the hydraulic valve in accordance with the rotational speed of the roller may generate and detect the pressure of the hydraulic fluid corresponding to the rotational speed of the roller.

According to the present invention, it is possible to drastically reduce the number and cost of frequent replacements or repairs, and can be composed of simpler and simpler combinations than the rope type governor to realize an aesthetically pleasing appearance, and effectively and accurately emergency braking force in an emergency There is an effect that can be provided.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Figure 2a is a schematic front view of the elevator speed governing device according to the present invention, Figure 2b is a schematic plan view of the elevator speed governing device of Figure 2a, Figure 2c is a sensor detection unit and the guide rail of the elevator speeding device of Figure 2a A schematic perspective view illustrating the engagement structure therebetween.

2A to 2C, the elevator speed control device 200 according to the present invention may include a hydraulic sensor unit 210 and a speed controller 220.

The oil pressure sensing unit 210 rotates along the guide rail 22 by matching with a guide rail 22 on which an elevator car 24 moves up and down. The lifting and lowering may be made of a roller 212, and a hydraulic pressure sensing unit 214 for detecting the pressure of the working oil which changes in response to the rotational speed of the roller 212. That is, the hydraulic sensor unit 210 includes the roller 212 and the hydraulic pressure sensing unit 214, the elevating and lowering of the elevator car 24 to move up and down along the guide rail 22 installed in the elevating passage 20 Detect speed In addition, the roller 212 is connected to the roller shaft 212a, which is a rotational center axis, so that the rotational torque of the roller 212 can be transmitted to the hydraulic pressure sensing unit 214.

On the other hand, the elevator car 24 engages with the guide rails 22 and mounts a guide shoe, for example, a plurality of rollers 26, which moves up and down within the hoistway, on the upper side of the elevator car 24, or the like. Included in the lower side, the hydraulic sensor unit 210 may detect the pressure of the hydraulic fluid that changes in accordance with the rotational speed of the roller 26 of the elevator car 24 or the roller 212 of the hydraulic sensor unit 210. Here, the guide shoe is described as being limited to the roller 26 type, but is not particularly limited thereto. For example, the hydraulic sensor unit 210 has a predetermined pressure value at which torque due to the rotational force of the roller 26 of the elevator car 24 or the roller 212 of the hydraulic sensor unit 210 is converted into the pressure of the hydraulic oil, that is, the hydraulic pressure. After that, the detected pressure value may be immediately and physically transferred directly to the speed controller 220 by an electrical signal or by a mechanical unit.

Here, the hydraulic sensor unit 210 includes a hydraulic pump (not shown) that operates in accordance with the rotational speed of the roller 26 of the elevator car 24 or the roller 212 of the hydraulic sensor unit 210, The hydraulic oil pumping operation of the pump may generate and detect the pressure of the hydraulic oil corresponding to the rotational speed of the roller 26 of the elevator car 24 or the roller 212 of the hydraulic sensor unit 210. For example, the hydraulic sensor unit 210 may generate the pressure of the hydraulic oil by continuously operating the hydraulic pump as the rotational speed increases.

On the other hand, the hydraulic sensor unit 210 by opening and closing the hydraulic valve (not shown) corresponding to the rotational speed of the roller 26 of the elevator car 24 or the roller 212 of the hydraulic sensor unit 210, The pressure of the hydraulic oil passing through the hydraulic valve may be generated and detected corresponding to the rotational speed of the roller 26 of the elevator car 24 or the roller 212 of the hydraulic sensor unit 210. For example, as the rotational speed increases, the hydraulic sensor unit 210 may continuously open the hydraulic valve to generate pressure of the hydraulic oil passing through the hydraulic valve.

The speed controller 220 compares the pressure of the hydraulic oil detected by the hydraulic sensor unit 210 with a predetermined critical hydraulic pressure, and if the detected hydraulic oil pressure exceeds the critical hydraulic pressure, the speed of the elevator car 24 is set to an overspeed state. Judging, the elevator car 24 is emergency braked.

That is, the speed controller 220 corresponds to the rising / lowering speed detected by the hydraulic sensor unit 210, for example, the rotational speed of the roller 26 of the elevator car 24 or the roller 212 of the hydraulic sensor unit 210. Thus, the speed of the elevator car 24 may be controlled by receiving the converted hydraulic pressure, that is, the hydraulic pressure value, and comparing the predetermined threshold speed, that is, the predetermined threshold hydraulic pressure value.

In addition, the emergency braking device 30 is formed on both sides of the lower side of the elevator car 24, adjacent to the guide rail 22, and controls the elevator car 24 under the control of the speed control unit 220. Practically emergency braking. For example, the pair of emergency braking devices 30 may be mechanically linked (not shown) to operate substantially simultaneously under control of the speed control unit 220 to emergency brake the elevator car 24.

As shown, the governing device 200 is configured on the upper side of the elevator car 24 for easy inspection and repair, and mechanically connected to the emergency braking device 30 to realize the connection relationship between the governing device and the emergency braking device, and By greatly simplifying the operating relationship, the installation of the elevator system or the speed governing device 200 can be facilitated and replacement and repair can be facilitated in the event of a failure of the speeding device. In addition, compared to the conventional governing device of the structure in which the governor rope is wound, a relatively less installation space is required, and the economical efficiency can be relatively higher since it is not necessary to use an expensive governor rope.

3 is a cross-sectional view schematically showing an example of the operation of the emergency braking device operated by the elevator governing device of FIG. 2A.

The speed control unit (not shown), when the pressure of the hydraulic fluid sensed by the hydraulic sensor unit (not shown) exceeds a predetermined threshold hydraulic pressure, the emergency braking device 30 is operated electrically or mechanically, the elevator car 24 Emergency braking.

As shown in FIG. 3, when the pressure of the hydraulic oil sensed by the hydraulic sensor unit or the speed of the elevator car 24 exceeds the predetermined critical hydraulic pressure or the predetermined threshold speed, the stopper member of the emergency braking device 30 ( The stopper 32 is substantially in close contact with the guide rail 22 (b) to emergency brake the elevator car 24 by mutual frictional forces. That is, the pair of emergency braking devices 30 installed below the elevator car 24 may be configured to be mechanically associated or connected through the speed control unit and the rod 26 installed above the elevator car 24. (a). Here, the speed control unit pulls the rod 26 in the upward direction, that is, the direction of the elevator car 24, thereby bringing the stopper member 32 connected to the rod 26 substantially in close contact with the guide rail 22 ( b) The elevator car 24 can be emergency braked by the physical frictional force between the stopper member 32 and the guide rail 22.

On the other hand, as shown in Figure 2a, the hydraulic sensor unit 210 and the speed control unit 220 is preferably formed on the upper side of the elevator car 24 to facilitate inspection and repair.

Therefore, as described above, if the speed of the elevator car detected by the hydraulic sensor portion exceeds the critical speed, the speed control unit operates the emergency braking device electrically or mechanically, so that in case of emergency, for example, the fall of the elevator car due to a safety accident. In this way, the elevator car can be braked quickly and accurately.

In the above description of the embodiments of the present invention with reference to the accompanying drawings, but described with respect to the elevator governing device having a specific shape and structure, the present invention can be variously modified and changed by those skilled in the art, such variations and modifications Should be construed as falling within the protection scope of the present invention.

1 is a schematic configuration diagram of an elevator governor according to the prior art.

2A is a schematic front view of an elevator governing apparatus according to the present invention.

FIG. 2B is a schematic plan view of the speed governing device for the elevator of FIG. 2A. FIG.

FIG. 2C is a schematic perspective view illustrating an engagement structure between the sensor detection unit and the guide rail of the elevator governing apparatus of FIG. 2A.

3 is a cross-sectional view schematically showing an example of the operation of the emergency braking device operated by the elevator governing device of FIG. 2A.

Claims (3)

A hydraulic sensor unit including a roller which rotates and descends along the guide rail in engagement with a guide rail to which the elevator car descends, and a hydraulic pressure sensing unit that senses a pressure of the hydraulic fluid that changes in accordance with the rotational speed of the roller; By comparing the pressure of the hydraulic oil sensed by the hydraulic sensor unit with a predetermined critical hydraulic pressure, if the detected hydraulic pressure exceeds the critical hydraulic pressure, the speed of the elevator car is judged as an overspeed state to emergency brake the elevator car. , Governor for elevators. The method of claim 1, The hydraulic sensor unit, An elevator governing apparatus further comprising a hydraulic pump operating in correspondence with the rotational speed of the roller, and generating and detecting a pressure of the hydraulic oil corresponding to the rotational speed of the roller by the hydraulic oil pumping operation of the hydraulic pump. . The method of claim 1, The hydraulic sensor unit, And a hydraulic valve, and opening and closing the hydraulic valve in correspondence with the rotational speed of the roller to generate and detect a pressure of the working oil corresponding to the rotational speed of the roller.
KR1020090053584A 2009-06-16 2009-06-16 A overspeed governor for elevator KR20100135114A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020090053584A KR20100135114A (en) 2009-06-16 2009-06-16 A overspeed governor for elevator

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Application Number Priority Date Filing Date Title
KR1020090053584A KR20100135114A (en) 2009-06-16 2009-06-16 A overspeed governor for elevator

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KR20100135114A true KR20100135114A (en) 2010-12-24

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3696127A1 (en) * 2019-02-18 2020-08-19 Inventio AG Position determining device for a lift facility
CN115180472A (en) * 2022-06-22 2022-10-14 厦门市特种设备检验检测院 Rapidly-installed monitoring sensor for elevator and use method thereof
KR102484418B1 (en) 2022-04-12 2023-01-04 (주)해미푸드 Process for preparing noodle with natural plant materials

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3696127A1 (en) * 2019-02-18 2020-08-19 Inventio AG Position determining device for a lift facility
KR102484418B1 (en) 2022-04-12 2023-01-04 (주)해미푸드 Process for preparing noodle with natural plant materials
CN115180472A (en) * 2022-06-22 2022-10-14 厦门市特种设备检验检测院 Rapidly-installed monitoring sensor for elevator and use method thereof
CN115180472B (en) * 2022-06-22 2023-04-11 厦门市特种设备检验检测院 Rapidly-installed monitoring sensor for elevator and use method thereof

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