DYFT-38 Transparent Escalator Experimental Platform

Release time：2024-06-27 04:00viewed：times

1. Equipment Overview
The transparent escalator tr*ning equipment is suitable for students majoring in elevator technology in vocational schools and secondary vocational schools to conduct practical tr*ning in escalator operation and m*ntenance. The simulation escalator model uses a transparent escalator step pedal system, handr*l belt system, traction machine system, equipment stand, safety detection system, electrical control system, etc. Through the escalator teaching model, students can become familiar with the working principle, structural composition, structure and principle of low-voltage control electrical appliances of common escalators. Students can master the safety protection and working status of the elevator by analyzing the electrical schematic diagram, and find out the location of the fault point through analysis and measurement, and master the operation principle and d*ly m*ntenance knowledge of the elevator.
II. Technical parameters
1. Input power: single-phase three-wire AC220V±10%, power frequency 50Hz;
2. Working environment: ambient temperature range is -5℃～+40℃, relative humidity <85% (25℃);
3. Overall capacity: ≤1.5KVA
4. Escalator size: 3400mm (length) × 850mm (width) × 1800mm (height)
5. Lifting height: 700mm
6. Control mode: plc or microcomputer control + variable frequency start.
9. Safety protection: with protective grounding, overload, overcurrent, leakage current protection functions, safety meets national standards.
III. M*n components
1. The escalator consists of a truss, a drive reducer, a drive device, a tensioning device, a guide r*l system, steps, step ch*ns, handr*ls and various safety devices.
(1) Truss: It is the basic frame of the escalator. All parts of the escalator are assembled in this metal structure truss. It is welded with angle steel, steel sections, etc. The truss consists of three parts, namely the upper platform, the middle truss and the lower platform. To ensure that the escalator is in good working condition, the truss has high rigidity. At the same time, the escalator truss is equipped with an intermediate support to play a supporting role and can adjust itself with the expansion and contraction of the truss.
(2) Driving machine (taking the ch*n type as an example): The driving machine is m*nly composed of an electric motor, a worm gear reducer, a sprocket, a brake (holding brake), etc. The installation position of the motor adopts a vertical driving machine. Its advantages are: compact structure, small footprint, light weight, easy m*ntenance; low noise and small vibration.
(3) Driving device: The driving device is m*nly composed of a driving sprocket, a step sprocket, a handr*l driving sprocket, a m*n shaft and a brake wheel or ratchet. The device obt*ns power from the driving machine and drives the steps and handr*ls through the driving ch*n to realize the m*n movement of the escalator. It can also brake in an emergency to prevent passengers from sliding backwards and ensure passenger safety. The device is installed in the upper platform (upper truss).
(4) Tensioning device: The tensioning device consists of a ladder ch*n wheel, shaft, tensioning trolley and spring for tensioning the step ch*n. The tensioning spring can be adjusted by a nut to keep the step ch*n in good working condition when the escalator is running. When the step ch*n breaks or stretches, the roller on the tensioning trolley accurately guides the displacement, so that its safety device (step ch*n break protection device) works and the escalator stops running immediately.
(5) Guide r*ls: The step running and return guide r*ls are both made of transparent organic glass, which has the characteristics of light weight, high relative rigidity, high manufacturing precision, and is easy to assemble and adjust.
(6) Step ch*n: The step ch*n is supported by a support wheel with permanent lubrication, and the step wheel on the step ch*n can run smoothly on the sprocket of the guide r*l system, drive device and tensioning device; it also makes the load evenly distributed and prevents premature wear of the guide r*l system, especially in the reverse zone where the two step ch*ns are connected by the step shaft, ensuring the stability of the overall operation of the step ch*n.
(7) Steps: Made of fully transparent organic glass.
(8) Handr*l drive device: The handr*l is directly driven by the drive device through the handr*l drive ch*n without the need for an intermediate shaft. The handr*l drive wheel rim has an oil-resistant rubber friction layer to ensure that the handr*l runs synchronously with the steps.
(9) Handr*l: The handr*l is made of a variety of materials, m*nly natural (or synthetic) rubber and cotton fabric (cord fabric). The standard color of the handr*l is black.
(10) Comb teeth, comb tooth plates, and floor plates:
① Comb teeth: Comb teeth and comb tooth plates are installed at the entrance and exit of the escalator to ensure the safe transition of passengers. Even if the passenger's shoes or items are relatively stationary on the steps, they will smoothly transition to the floor plate.
② Comb tooth plate: The comb tooth plate is used to fix the comb teeth.
③ Floor plate (landing plate): The floor plate is both the exit of the escalator and the cover plate of the upper and lower platform m*ntenance rooms (machine rooms). It is made of plexiglass and is transparent and intuitive.
(11) Virtual simulation system for comprehensive integrated tr*ning of vocational skills The model
in the software can be rotated 360°, enlarged, reduced, and translated, and there are general interactive buttons: return, home page, and help. There are prompts for all virtual simulation task processes, and the software automatically checks after completing a task. There is an experimental task 1 above the tool library, basic solid (the XYZ space coordinate icon automatically rotates with the rotation when the model is rotated.) A. Plane solid: The experimental steps are divided into experimental tasks (text prompt tasks) - build model (drag the model in the tool library to the three-projection surface system, and the projection will automatically appear. There will be prompts when the selection is wrong) - change posture (change by clicking the up, down, left, and right arrows) - select projection (enter the answer interface, and select the completed three-dimensional projection image at this time from the 6 items) B. Cutting solid: The experimental steps are divided into experimental tasks (text prompt tasks) - build model (drag the model in the tool library to the three-projection surface system, and the projection will automatically appear) - mark the projection situation (mark the three-dimensional projection image, select the corresponding annotation symbol in the 14 blank columns) C. Intersecting three-dimensional: The experimental steps are divided into experimental tasks (text prompt tasks) - digging holes (select any digging hole model, then you can select any surface in the XYZ space coordinates, the model switches at the same time, and a coordinate slider appears. According to the displacement of the slider, the model will appear a section surface of the corresponding degree) - aperture change (select 1-4 apertures) - rear through hole - select projection (enter the answering interface, select the completed three-dimensional projection diagram in 8 items) 2. Combination
A. Assembly of the assembly: The experimental steps are divided into experimental tasks (text prompt tasks) - select the assembly model (8 models can be selected) - assemble the assembly (select the tool library model according to the selected model and drag the combination) - section the assembly (you can select any surface in the XYZ space coordinates, the models will switch at the same time, and a coordinate slider will appear. According to the displacement of the slider, the model will have a corresponding degree of section) - select the side projection (enter the answering interface, and select the correct side projection from the 3 items based on the known front and horizontal projections)
B. Assembly drawing reading: The experimental steps are divided into experimental tasks (text prompt tasks) - select the assembly cross-sectional view (8 drawings can be selected) - build the assembly model (select the tool library model according to the selected model and drag the combination) - section the assembly (you can select any surface in the XYZ space coordinates, the models will switch at the same time, and a coordinate slider will appear. According to the displacement of the slider, the model will have a corresponding degree of section) - select the left view (enter the answering interface, and select the correct left view from the 3 items based on the known m*n view and top view)
3. Assembly
A. Mechanical transmission mechanism : 8 mechanisms (worm gear, gear rack, spiral transmission, plane external meshing gear, plane internal meshing gear, space spur bevel gear, belt drive , ch*n drive) are av*lable for selection. After selection, the model will appear in the toolbar. You can freely drag and drop the models to combine them. After the combination is completed, you can operate the model. Each mechanism comes with a brief introduction, video demonstration, and drawing method. There are 6 questions in the answering interface, and each question has 4 options.
B. Gear oil pump: Select the tool library model according to the prompts and build the model step by step. You can choose to learn the introduction, drawing method, and animation principle (the internal movement principle of the model can be visualized). There are 2 questions in the answering interface, and each question has 4 options.
C. Mechanical mechanism construction: 2 mechanisms (2-degree-of-freedom robotic arm, 3-degree-of-freedom robotic arm). Select the tool library model according to the prompts and build the model step by step. After the combination is completed, you can operate the model. Each mechanism comes with a brief introduction and video demonstration. There are 2 questions in the answering interface (both models must be built before entering). There are 4 options for each question.
(12) M*n components of the equipment

Serial number	name	quantity	unit	Remark
1	Escalator electrical truss system	1	set	Detachable and modular, easy to transport and install
2	Escalator support fixed steel frame	1	set	High quality square tube welding, thickness 2mm
3	Tr*ning table	1	set	1500700750
4	Tr*ning platform	1	set	1400250700
5	Escalator disassembly and assembly tr*ning tools	1	set

(13) Materials of m*n escalator parts

Serial number	content
1	Escalator structure truss: high-quality angle steel and square steel
2	Handr*l bracket profile: high quality square tube welding frame
3	W*nscoting: Transparent plexiglass
4	Inner cover: H*rline plexiglass material
5	Outer cover: H*rline plexiglass material
6	Apron board: H*rline plexiglass material
7	Steps: Plexiglas, Step width: 400mm
9	Handr*l: Black
10	Front plate and cover plate: organic glass material
11	Comb tooth protection: Synthetic resin (yellow)
12	Truss protection: 4mm transparent plexiglass plate

IV. Tr*ning projects
1. Understand the structure of escalators, the names and functions of the m*n components such as tensioners, steps, step guides, handr*ls, traction ch*ns, comb plates, and drive devices.
2. Understand the functions and installation locations of escalator installation protection devices. Traction ch*n break protection device, comb foreign body protection device, handr*l entrance safety protection device, step sinking protection device, drive ch*n break protection device, handr*l break protection device, auxiliary brake, mechanical locking device, etc.
3. Tr*ning on installation and adjustment of escalator handr*ls;
4. Tr*ning on installation and adjustment of escalator steps;
5. Tr*ning on installation and adjustment of escalator traction machine systems;
6. Tr*ning on assembly and action experiments of escalator safety protection systems.

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