US2024227873A9PendingUtilityA9

Power decentralized electric locomotive apparatus

Assignee: CHINA RAILWAY ENG SERVICES CO LTDPriority: Nov 1, 2021Filed: Nov 12, 2021Published: Jul 11, 2024
Est. expiryNov 1, 2041(~15.3 yrs left)· nominal 20-yr term from priority
B61C 3/00B61C 17/12B61C 3/02
48
PatentIndex Score
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Claims

Abstract

A power decentralized electric locomotive apparatus includes an electric locomotive and a plurality of muck trucks. The electric locomotive and the plurality of muck trucks are connected in sequence, and a mater drive motor is fixedly mounted on the electric locomotive. A slave drive motor is fixedly mounted on at least one of the muck trucks; a torque of the slave drive motor is smaller than a torque of the mater drive motor; and the slave drive motor cooperates with the mater drive motor, to enable the muck truck to travel on rails and reduce drive power and self-weight of the electric locomotive.

Claims

exact text as granted — not AI-modified
1 . A power decentralized electric locomotive apparatus, comprising an electric locomotive and a plurality of muck trucks, the electric locomotive and the plurality of muck trucks being connected in sequence, and a mater drive motor being fixedly mounted on the electric locomotive,
 wherein:   a slave drive motor is fixedly mounted on at least one of the muck trucks;   a torque of the slave drive motor is smaller than a torque of the mater drive motor; and   the slave drive motor cooperates with the mater drive motor, to enable the muck truck to travel on rails and reduce drive power and self-weight of the electric locomotive.   
     
     
         2 . The power decentralized electric locomotive apparatus according to  claim 1 , wherein a ratio of the torque of the slave drive motor to the torque of the master drive motor is 0.04-0.23:1. 
     
     
         3 . (canceled) 
     
     
         4 . The power decentralized electric locomotive apparatus according to  claim 2 , wherein the slave drive motor is a three-phase asynchronous AC variable frequency motor. 
     
     
         5 . The power decentralized electric locomotive apparatus according to  claim 2 , wherein an electrical control system is mounted on the electric locomotive, and the electrical control system, the master drive motor, and the slave drive motor are electrically connected in sequence. 
     
     
         6 . The power decentralized electric locomotive apparatus according to  claim 5 , wherein the electrical control system, the master drive motor, and the slave drive motor are electrically connected in sequence through an electric locomotive frequency-converter cabinet and a muck truck frequency-converter cabinet. 
     
     
         7 . The power decentralized electric locomotive apparatus according to  claim 6 , wherein a lithium battery working group is mounted on the electric locomotive and is electrically coupled to the electrical control system, the electric locomotive frequency-converter cabinet, and the muck truck frequency-converter cabinet. 
     
     
         8 . The power decentralized electric locomotive apparatus according to  claim 6 , wherein:
 the muck truck comprises a muck bucket, a concave chassis, and a muck truck bogie;   a bottom of the muck bucket is mounted in a groove of the concave chassis;   an end plate of the concave chassis is fixedly mounted on a frame of the muck truck bogie;   the muck truck frequency-converter cabinet is fixedly mounted on the frame of the muck truck bogie;   a wheel pair of the muck truck bogie is rollably mounted on the rails; and   the slave drive motor is fixedly mounted on the frame of the muck truck bogie and is transmissively coupled to the wheel pair of the muck truck bogie.   
     
     
         9 . The power decentralized electric locomotive apparatus according to  claim 8 , wherein the slave drive motor is fixedly mounted on the frame of the muck truck bogie along a vertical direction, and an output end of the slave drive motor faces downwards. 
     
     
         10 . The power decentralized electric locomotive apparatus according to  claim 9 , wherein a shield cover is fixedly mounted on the end plate of the concave chassis, and a side of the shield cover close to the groove is inclined from top to bottom towards the groove. 
     
     
         11 . The power decentralized electric locomotive apparatus according to  claim 10 , wherein the side of the shield cover close to the groove has an arc-shaped top. 
     
     
         12 . The power decentralized electric locomotive apparatus according to  claim 10 , wherein the slave drive motor and the muck truck frequency-converter cabinet are inside the shield cover. 
     
     
         13 . The power decentralized electric locomotive apparatus according to  claim 12 , wherein a door plate is movably mounted on another side of the shield cover away from the groove. 
     
     
         14 . The power decentralized electric locomotive apparatus according to  claim 13 , wherein the door plate comprises a plurality of mesh holes with rainproof eaves. 
     
     
         15 . The power decentralized electric locomotive apparatus according to  claim 9 , wherein a connection arm is fixedly mounted at an end of the end plate of the concave chassis, and a traction connection seat is fixedly mounted on the connection arm. 
     
     
         16 . The power decentralized electric locomotive apparatus according to  claim 15 , further comprising two connection arms, wherein a motor mounting port is formed between the two connection arms. 
     
     
         17 . The power decentralized electric locomotive apparatus according to  claim 8 , wherein the muck truck bogie comprises two wheel pairs, and the slave drive motor is transmissively coupled to one of the two wheel pairs. 
     
     
         18 . The power decentralized electric locomotive apparatus according to  claim 17 , wherein the slave drive motor is transmissively coupled to the one wheel pair through a muck truck gearbox. 
     
     
         19 . The power decentralized electric locomotive apparatus according to  claim 8 , wherein:
 an air brake device is fixedly mounted on the frame of the muck truck bogie and is electrically coupled to the electrical control system; and   a brake end of the air brake device cooperates with the wheel pair.   
     
     
         20 . The power decentralized electric locomotive apparatus according to  claim 8 , wherein the end plate of the concave chassis fixedly mounted on the frame of the muck truck bogie through a bogie attachment seat. 
     
     
         21 . The power decentralized electric locomotive apparatus according to  claim 8 , wherein a main beam is fixedly mounted in a middle part of the end plate of the concave chassis along a longitudinal direction, and a side edge beam is fixedly mounted on a side of the concave chassis along the longitudinal direction. 
     
     
         22 .- 41 . (canceled)

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