(
New Words and Expressions • classification [klæsifi keiʃən] n. 编组 • 6-car set/unit n. 六节车厢编组 • motor car n. 动车 • Trailer [treilə] n. 拖车 • pantograph [pæntəgrɑ:f] n. 受电弓 • cab [kæ b] n. 驾驶室 • barrier [bæriə] n. 障碍物，路障，栅栏
Advised Hours
• 4 class hours
What are the following parts for a metro train?
Possible Answer
• L: locomotive • B: body • D: door
• 备注：地铁车头即车尾
1. What is a motor car and what is a trailer?
Motor car usually propelled by an internal combustion engine；trailer is the term given to a combination of a trailer and an on-road tractor, or truck.
1. Can you tell me the components of a metro train?._______________________________
_________________________________________ 1. body and door 2. bogie _________________________________________ 3. coupler buffer connecting device and etc. _________________________________________ _________________________________________ 2.
2. How about the classification of your city’s subway? Multi-frequency, capacity, speed,
punctuality rate
3. What about the main subway equipment on vehicles?
Unit 11 Introduction Of Metro Vehicle
地铁车辆介绍
Unit Aim
You will be able to
• remember words about metro vehicle; • introduce vehicle equipment and its functions; • be quick and helpful when you maintain the vehicle.
Subway
• How many parts does a metro train consist of?
•
• • • • • • •
• •
A metro train,as shown in above Picture,includes the following parts: 1. body and door 2. bogie 3. coupler buffer connecting device 4. brake device （ air brake， rheostatic brake，regenerative brake， electromagnetic rail brake） 5. current collector ，conductor rail collector ，shoegear ， collector shoe 6. interior equipment （electricity）、（ventilation）、（heating）、（air conditioning）、（seat）、（handle）（storage battery box）、 （accumulator box）、（relay case）、（main control box）、 (motor air compression unit)、（power source transformer）、 （electrical switch）（contactor box） 7. electrical system power circuit ；main circuit ，auxiliary circuit ，control circuit
coupler buffer devices；bogie；door；body
•
• • • •Байду номын сангаас• • • • • • •
(David is from America. He is talking about the subway train with Mr. Zhang. ) David : Could you introduce the classification of Shanghai Subway? Mr. Zhang: Well, most of trains are 6-car unit. But trains of Line 1 are 8-car unit because of great capacity. David : Are they motor cars or trailers? Mr. Zhang : Each car is a motor car. David : Then how can they get electricity power? Mr. Zhang : The pantograph works. David : How are the opening and closing of doors controlled? Mr. Zhang : Doors are controlled by the TO in the cab. When there is a metro barrier door, the control is synchronous. David : Wow! What an advanced vehicle system!