Dead axle of rail vehicle, rail vehicle, and rail transportation system

Patent metadata

Field	Value
Publication number	US-2021237781-A1
Application number	US-201916967653-A
Country	US
Kind code	A1
Filing date	Jan 28, 2019
Priority date	Feb 6, 2018
Publication date	Aug 5, 2021
Grant date	—

Abstract

A dead axle of a rail vehicle includes: an axle body; a running wheel; a guiding frame; a horizontal wheel; and a connecting rod component, including a first transverse pull rod and a second transverse pull rod, where when the rail vehicle turns left, the horizontal wheel cooperates with a rail beam to drive the guiding frame to swing and drive the first transverse pull rod to move together, and the second transverse pull rod is driven by the first transverse pull rod to drive the running wheel to swing to the left, and when the rail vehicle turns right, the horizontal wheel cooperates with the rail beam to drive the guiding frame to swing and drive the first transverse pull rod to move together, and the second transverse pull rod is driven by the first transverse pull rod to drive the running wheel to swing to the right.

First claim

What is claimed is:

1 . A dead axle of a rail vehicle, comprising:
an axle body, connected to a vehicle frame of the rail vehicle; a running wheel, rotatable in the axial direction of the running wheel and transversely swingably mounted on the axle body, wherein the running wheel is supported on a rail beam along which the rail vehicle travels; a guiding frame, mounted on the axle body rotatably relative to the axle body in a horizontal direction; a horizontal wheel, disposed on the guiding frame; and a connecting rod component, comprising a first transverse pull rod and a second transverse pull rod, wherein the first transverse pull rod is pivotally mounted on the guiding frame, the second transverse pull rod is respectfully transmission-connected to the first transverse pull rod and the running wheel, wherein when the rail vehicle turns left, the horizontal wheel cooperates with the rail beam to drive the guiding frame to swing and to drive the first transverse pull rod to move together, and the second transverse pull rod is driven by the first transverse pull rod to drive the running wheel to swing to the left, and when the rail vehicle turns right, the horizontal wheel cooperates with the rail beam to drive the guiding frame to swing and to drive the first transverse pull rod to move together, and the second transverse pull rod is driven by the first transverse pull rod to drive the running wheel to swing to the right.

2 . The dead axle of a rail vehicle according to claim 1 , wherein the horizontal wheel comprises a front horizontal wheel and a rear horizontal wheel, and the front horizontal wheel and the rear horizontal wheel are disposed on the guiding frame at an interval in the longitudinal direction.

3 . The dead axle of a rail vehicle according to claim 1 , wherein two running wheels are provided and are respectively mounted on two sides of the axle body.

4 . The dead axle of a rail vehicle according to claim 3 , wherein the connecting rod component further comprises:
a left steering arm and a right steering arm, wherein a first end of the first transverse pull rod is pivotally mounted on the guiding frame, the left steering arm and the right steering arm are respectively located on two sides of the guiding frame, a first end of the left steering arm is transmission-connected to one of the running wheels that is located on the left side, a first end of the right steering arm is transmission-connected to one of the running wheels that is located on the right side, a second end of the first transverse pull rod is pivotally connected to the middle of one of the left steering arm and the right steering arm, a second end of the left steering arm and a second end of the right steering arm are respectively pivotally connected to two ends of the second transverse pull rod, and the first transverse pull rod is transmission-connected to the second transverse pull rod by one of the left steering arm and the right steering arm.

5 . The dead axle of a rail vehicle according to claim 4 , wherein the guiding frame comprises a frame body and a mounting base mounted on the frame body, and the first transverse pull rod is pivotally mounted on the mounting base.

6 . The dead axle of a rail vehicle according to claim 5 , wherein the mounting base is disposed at a right edge adjacent to the frame body, and the first transverse pull rod is pivotally connected to the left steering arm.

7 . The dead axle of a rail vehicle according to claim 4 , wherein the axle body further comprises:
an axle housing assembly; and a left steering knuckle and a right steering knuckle, wherein the left steering knuckle is pivotally connected to the axle housing assembly by a left pin shaft, the right steering knuckle is pivotally connected to the axle housing assembly by a right pin shaft, the two running wheels are respectively rotatably mounted on the left steering knuckle and the right steering knuckle, the left steering arm is connected to the left steering knuckle, the right steering arm is connected to the right steering knuckle.

8 . The dead axle of a rail vehicle according to claim 7 , wherein the axle housing assembly is formed by welding a right half-axle fork, an axle housing, and a left half-axle fork, wherein the left half-axle fork has an upper left limb and a lower left limb that are disposed at an interval in the vertical direction, the left pin shaft comprises an upper left pin shaft and a lower left pin shaft, the left steering knuckle cooperates with the upper left pin shaft inside the upper left limb and cooperates with the lower left pin shaft inside the lower left limb to be pivotally connected to the left half-axle fork, the right half-axle fork has an upper right limb and a lower right limb that are disposed at an interval in the vertical direction, the right pin shaft comprises an upper right pin shaft and a lower right pin shaft, and the right steering knuckle cooperates with the upper right pin shaft inside the upper right limb and cooperates with the lower right pin shaft inside the lower right limb to be pivotally connected to the right half-axle fork.

9 . The dead axle of a rail vehicle according to claim 8 , wherein a push cylindrical roller bearing is disposed between the left steering knuckle and at least one of the upper left limb and the lower left limb, and a push cylindrical roller bearing is disposed between the right steering knuckle and at least one of the upper right limb and the lower right limb.

10 . The dead axle of a rail vehicle according to claim 7 , further comprising two brakes, wherein the two running wheels are respectively mounted on the left steering knuckle and the right steering knuckle by a wheel hub assembly, the two brakes are respectively locked on the two wheel hub assemblies by a guiding bolt.

11 . The dead axle of a rail vehicle according to claim 10 , further comprising a dust guard that is sleeved over the guiding bolt and used for preventing dust from touching the surface of the guiding bolt.

12 . The dead axle of a rail vehicle according to claim 2 , wherein two front horizontal wheels are provided, two rear horizontal wheels are provided, the upper surface of the rail beam is provided with a groove, the two front horizontal wheels respectively abut two sidewalls of the groove, and the two rear horizontal wheels respectively abut two sidewalls of the groove.

13 . The dead axle of a rail vehicle according to claim 12 , wherein the guiding frame is generally rectangular, and the two front horizontal wheels and the two rear horizontal wheels are respectively mounted at four corners of the guiding frame.

14 . The dead axle of a rail vehicle according to claim 1 , further comprising a shock absorber assembly, respectively connected to the axle body and the vehicle frame of the rail vehicle.

15 . The dead axle of a rail vehicle according to claim 1 , further comprising a secondary spring assembly, wherein the secondary spring assembly comprises:
a spring upper base plate, mounted on the vehicle frame of the rail vehicle, wherein the lower surface of the spring upper base plate is provided with an upper guiding post; and a spring lower base plate, connected to the axle body, wherein the upper surface of the spring lower base plate is provided with a lower guiding post; an auxiliary spring, sleeved over the upper guiding post and the lower guiding post; and a main spring, sleeved over the auxiliary spring.

16 . The dead axle of a rail vehicle according to claim 1 , further comprising:
a V-shaped push rod component, comprising: two V pus

Assignees

• Byd Co Ltd

Inventors

• Hu Qingzeng
• Yao Xiaojin
• Xiong Xiaofang
• Wei Jia
• Liu Huiyue

Classifications

• B60B17/0082

  Wheels designed to interact with a particular rail profile · CPC title

• B60B35/04

  straight · CPC title

• B61B13/04 Primary

  Monorail systems · CPC title

• B60B35/003 Primary

  Steerable axles · CPC title

• B61F5/52

  Bogie frames · CPC title