Elevator inspection and speed measurement device

Abstract

The utility model discloses an elevator inspection speed measuring device, which relates to the technical field of elevator safety detection, and comprises an elevator shaft top plate, a wheel carrier, a rotating shaft, a guide wheel, a steel wire rope and a car, the wheel carrier is arranged on the elevator shaft top plate, the rotating shaft is arranged on the wheel carrier, the guide wheel is arranged on the rotating shaft, the steel wire rope is arranged in a wheel groove of the guide wheel, and the car is arranged in the steel wire rope. One end of the steel wire rope is connected with a lift car arranged in an elevator shaft, an inserting opening is formed in the wheel frame, a laser range finder mounting structure is inserted into the inserting opening, and a laser range finder is mounted on the laser range finder mounting structure. According to the utility model, the laser range finder mounting structure, the laser range finder, the reflecting prism fixing frame and the reflecting prism are matched with each other, so that laser speed measurement of the elevator can be realized, and an elevator inspector can be helped to determine whether a speed measurement system of the elevator is accurate or not by comparing a laser speed measurement result with data measured by the elevator through the encoder.

Description

TECHNICAL FIELD

[0001] The utility model relates to elevator safety detection technical field, concretely is a kind of elevator inspection speed measuring device. BACKGROUND

[0002] In daily life, the use of elevator is very frequent, and elevator, as a vertical traffic tool for carrying people, must put safe operation in the first place, to ensure the safe operation of elevator, from design, manufacture, installation and other aspects, fully consider the prevention of the occurrence of danger, and set up special safety device for various possible dangers.

[0003] Elevator speed limiter is one of the safety control components in elevator safety protection system, when elevator runs overspeed due to any reason, even the danger of falling, and all other safety protection devices do not work, then speed limiter and safety gear linkage action, make elevator car stop, traditional elevator speed limiter mostly measures speed by encoder, encoder measures the rotating speed of elevator motor, so as to calculate the running speed of elevator, to ensure the safe operation of elevator, need to carry out routine inspection to elevator, when routine inspection, inspector often reads the encoder data to check whether the running speed of elevator is in reasonable range, but when the speed calculated by encoder cannot completely determine the actual running speed of elevator, such as the actual running speed of elevator is greater than the detected speed when the steel wire rope of elevator slips between guide wheel, it will inevitably affect the safety of elevator, therefore, we invent a kind of elevator inspection speed measuring device to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of elevator inspection speed measuring device to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] The utility model provides an elevator inspection speed measuring device, including elevator shaft roof, wheel frame, pivot, guide wheel, steel wire rope and car, the wheel frame is installed on the elevator shaft roof, the pivot is installed on the wheel frame, the guide wheel is installed on the pivot, the wheel groove of guide wheel is provided with the steel wire rope, one end of steel wire rope is connected with the car of setting in the elevator shaft, the socket is seted up on the wheel frame, the laser range finder installation structure is inserted into the socket, the laser range finder is installed on the laser range finder installation structure, the laser range finder installation structure includes vertical plate and horizontal plate, vertical plate and horizontal plate fixed connection, the laser range finder is installed on the horizontal plate, the reflection prism fixing frame is installed on the car top, the reflection prism is installed on the reflection prism fixing frame and is correspondingly set up with the laser range finder, the disc is installed on the pivot, and the through hole is evenly set up in the ring shape on the disc, the mounting plate is installed on the disc, and the mounting plate is fixed on the wheel frame through the screw, the photoelectric sensor and the light reflection paper are installed on the both side board surfaces of mounting plate respectively, and the photoelectric sensor is arranged opposite to the light reflection paper.

[0007] As a further scheme of the utility model: the photoelectric sensor and the light reflection paper are on the same height line with the through hole on the top of the disc.

[0008] As a further scheme of the utility model: the front of the mounting plate is inverted L type.

[0009] As a further scheme of the utility model: the first magnetic plate is installed on the vertical plate, and the second magnetic plate is installed on the wheel frame and is magnetically attracted to the first magnetic plate.

[0010] As a further scheme of the utility model: the handle is installed on the laser range finder installation structure.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1. The laser range finder installation structure, the laser range finder, the reflection prism fixing frame and the reflection prism are matched with each other, so that the laser speed of the elevator can be measured, the laser speed result is compared with the data measured by the encoder of the elevator, the elevator inspection personnel can determine whether the speed measuring system of the elevator is accurate, and the safety of the elevator is better ensured.

[0013] 2. The laser range finder installation structure can be directly installed on the wheel frame through the magnetic attraction of the first magnetic plate and the second magnetic plate, the installation and disassembly are convenient, and the inspection personnel can carry the laser range finder installation structure for inspection of different elevators.

[0014] 3. The utility model discloses a round disc, photoelectric sensor and reflective sticker can realize the detection of the rotating speed of the guide wheel, and then help the inspector to judge the reason of the inaccurate encoder speed measurement system, that is, whether it is caused by the steel wire rope slip, and then help the inspector to find the fault reason faster, convenient for subsequent maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a kind of elevator inspection speed measurement device overall structure schematic diagram.

[0016] Figure 2 It is a kind of elevator inspection speed measurement device local structure schematic diagram.

[0017] Figure 3 It is a kind of elevator inspection speed measurement device Figure 1 The structure schematic diagram of the middle round disc.

[0018] Figure 4 It is a kind of elevator inspection speed measurement device Figure 1 The structure enlarged view of A in the device.

[0019] 1, elevator shaft roof board;2, wheel frame;3, rotating shaft;4, guide wheel;5, steel wire rope;6, car;7, laser range finder installation structure;701, vertical plate;702, horizontal plate;8, laser range finder;9, reflecting prism fixing frame;10, reflecting prism;11, round disc;12, through hole;13, spigot;14, first magnetic plate;15, second magnetic plate;16, handle;17, mounting plate;18, photoelectric sensor;19, reflective sticker. DETAILED DESCRIPTION

[0020] The technical scheme in the utility model embodiment will be described clearly and completely below with reference to the drawings in the utility model embodiment, and obviously, the described embodiment is only part of the utility model embodiment, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of the utility model protection.

[0021] Please refer to Figures 1-2The utility model discloses an elevator inspection speed measuring device, including elevator shaft roof 1, wheel frame 2, rotation axis 3, guide wheel 4, steel wire rope 5 and car 6, elevator shaft roof 1 is installed wheel frame 2, wheel frame 2 is installed rotation axis 3, rotation axis 3 is installed guide wheel 4, the wheel groove of guide wheel 4 is provided with steel wire rope 5, one end of steel wire rope 5 is connected with the car 6 of setting in elevator shaft, the opening 13 is seted up in wheel frame 2, the opening 13 is inserted with laser range finder installation structure 7, laser range finder installation structure 7 is installed laser range finder 8, laser range finder installation structure 7 includes vertical board 701 and horizontal plate 702, vertical board 701 and horizontal plate 702 fixed connection, laser range finder 8 is installed on horizontal plate 702, the car 6 top is installed reflection prism fixed frame 9, reflection prism fixed frame 9 is installed with the reflection prism 10 of setting up with laser range finder 8 upper and lower correspondence,

[0022] First magnetic attraction board 14 is installed on vertical board 701, and second magnetic attraction board 15 that is used in cooperation with first magnetic attraction board 14 is installed on wheel frame 2 opposite first magnetic attraction board 14, and the magnetic attraction cooperation of first magnetic attraction board 14 and second magnetic attraction board 15 can facilitate laser range finder 8 to be installed on wheel frame 2, and the disassembly and assembly of laser range finder 8 are convenient,

[0023] Handle 16 is installed on laser range finder installation structure 7, and handle 16 can facilitate personnel to operate and carry laser range finder installation structure 7, and laser range finder 8 is SW-TM40.

[0024] Please refer to Figure 1 、 Figure 3 And Figure 4 Disc 11 is installed on rotation axis 3, and through holes 12 are uniformly arranged in annular shape on disc 11, mounting plate 17 is installed above disc 11, mounting plate 17 is fixed on wheel frame 2 through screws, photoelectric sensor 18 and reflective sticker 19 are respectively installed on the two side plate surfaces of mounting plate 17, photoelectric sensor 18 and reflective sticker 19 are oppositely arranged, photoelectric sensor 18 and reflective sticker 19 are on the same height line with the through hole 12 at the top of disc 11, the front surface of mounting plate 17 is inverted L-shaped, the photoelectric sensor 18 and reflective sticker 19 can be conveniently installed on the left and right sides by adopting the design, and the rotational speed of disc 11 can be conveniently detected, the model of photoelectric sensor 18 is ROLS-5PW, photoelectric sensor 18 is connected with data storage recorder, and the model of data storage recorder is GL240, photoelectric sensor 18 is connected to the data storage recorder, then the data storage recorder is connected with the computer, the rotational speed of the equipment can be monitored and recorded in real time through specific software, and the linear speed of the wheel groove of guide wheel 4 can be calculated by multiplying the rotational speed with the radius of the wheel groove of guide wheel 4.

[0025] The working principle of the utility model is:

[0026] When the elevator needs to be measured in use, the laser range finder mounting structure 7 is inserted into the socket 13 by the staff holding the handle 16, so that the first magnetic plate 14 on the laser range finder mounting structure 7 is magnetically fixed with the second magnetic plate 15 on the wheel frame 2, then the laser range finder 8 is turned on during the operation of the elevator, the laser range finder 8 emits a laser beam to the reflecting prism 10 on the car 6, the running speed of the car 6 is calculated by receiving the reflected light of the reflecting prism 10, then the running speed is compared with the running speed measured by the encoder, so as to judge whether the running speed self-measuring system of the elevator is faulty, when the running speed self-measuring system of the elevator is faulty, the photoelectric sensor 18 is turned on again, the photoelectric sensor 18 measures the rotating speed of the guide wheel 4 through the through hole 12 on the disc 11 cooperating with the reflective sticker 19, the rotating speed of the guide wheel 4 is converted into the linear speed of the guide wheel 4 groove, and the data measured by the laser range finder 8 is compared, when the two data are not equal, it proves that the steel wire rope 5 has the problem of slipping, after use, the laser range finder mounting structure 7 is detached from the wheel frame 2 by the handle 16 for carrying.

[0027] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. An elevator inspection speed measuring device comprising an elevator shaft ceiling (1), a wheel frame (2), a rotating shaft (3), a guide wheel (4), a steel wire rope (5) and a car (6), the wheel frame (2) is installed on the elevator shaft ceiling (1), the rotating shaft (3) is installed on the wheel frame (2), the guide wheel (4) is installed on the rotating shaft (3), the steel wire rope (5) is arranged in the wheel groove of the guide wheel (4), one end of the steel wire rope (5) is connected with the car (6) arranged in the elevator shaft, characterized in that: The wheel frame (2) is provided with a socket (13), the socket (13) is inserted with a laser range finder mounting structure (7), the laser range finder mounting structure (7) is installed with a laser range finder (8), the laser range finder mounting structure (7) includes a vertical plate (701) and a horizontal plate (702), the vertical plate (701) and the horizontal plate (702) are fixedly connected, the horizontal plate (702) is installed with the laser range finder (8), the car (6) top is installed with a reflecting prism fixing frame (9), the reflecting prism fixing frame (9) is installed with a reflecting prism (10) corresponding to the laser range finder (8) up and down, the rotating shaft (3) is installed with a disc (11), the disc (11) is uniformly provided with a through hole (12) in annular, the disc (11) is installed with a mounting plate (17) above, the mounting plate (17) is fixed on the wheel frame (2) by screw, the mounting plate (17) both sides panel is installed with photoelectric sensor (18) and reflective sticker (19) respectively, the photoelectric sensor (18) and the reflective sticker (19) are opposite to each other. ​ 2. An elevator inspection speed measuring device according to claim 1, characterized in that The photoelectric sensor (18) and the reflective sticker (19) are all on the same height line with the through hole (12) on the top of the disc (11).

3. An elevator inspection speed measuring device according to claim 1, characterized in that The front of the mounting plate (17) is inverted L type.

4. An elevator inspection speed measuring device according to claim 1, characterized in that The vertical plate (701) is installed with a first magnetic plate (14), the wheel frame (2) is installed with a second magnetic plate (15) opposite to the first magnetic plate (14) and used in magnetic attraction with the first magnetic plate (14).

5. An elevator inspection speed measuring device according to claim 1, characterized in that: The laser range finder mounting structure (7) is installed with a handle (16).

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