Traction mechanism, bogie assembly, and straddle-type monorail vehicle

Patent metadata

Field	Value
Publication number	US-11377129-B2
Application number	US-201716335032-A
Country	US
Kind code	B2
Filing date	Feb 28, 2017
Priority date	Sep 21, 2016
Publication date	Jul 5, 2022
Grant date	Jul 5, 2022

Abstract

A traction mechanism, a bogie assembly and a straddle-type monorail vehicle are disclosed. The traction mechanism comprises: a traction component, comprising a traction connecting rod, a first crank and a transmission shaft, the traction connecting rod being suitable to be hinged to a bogie frame, a first end of the first crank being hinged to the traction connecting rod, a second end of the first crank being fixedly connected to the transmission shaft, and the transmission shaft being suitable to be rotatably connected to a vehicle body; and a traction crank, both ends of the traction crank being suitable to be respectively hinged to the bogie frame and the vehicle body, wherein the first end of the first crank is away from the traction crank. The traction mechanism of the present disclosure has a simple and compact structure, and a transmission path of a traction force is short. The traction mechanism is convenient to assemble and disassemble, occupies a small space, is wide in usage range, can be used for low-floor and high-floor vehicles, and is also applicable to a single-axle bogie, a double-axle bogie and a multi-axle bogie.

First claim

What is claimed is:

1. A traction mechanism, comprising:
a traction component, comprising a traction connecting rod, a first crank and a transmission shaft, wherein the traction connecting rod is spherically hinged to a bogie frame, a first end of the first crank is hinged to the traction connecting rod, a second end of the first crank is fixedly connected to the transmission shaft, and the transmission shaft is rotatably connected to a vehicle body; and
a traction crank, a first end of the traction crank being hinged to the vehicle body and a second end of the traction crank being spherically hinged to the bogie frame, wherein the first end of the first crank is away from the traction crank.

2. The traction mechanism according to claim 1 , wherein the traction mechanism comprises at least two traction components spaced apart laterally.

3. The traction mechanism according to claim 2 , wherein a projection of the traction crank in a horizontal plane is located between projections of the at least two traction components in the horizontal plane.

4. The traction mechanism according to claim 2 , wherein each traction component further comprises a second crank, a first end of the second crank is fixedly connected to the transmission shaft, the first end of the second crank is away from the bogie frame, and the traction mechanism further comprises:
a lateral connecting rod, two ends of the lateral connecting rod being respectively hinged to second ends of two second cranks of the at least two traction components.

5. The traction mechanism according to claim 4 , wherein the first crank and the second crank are arranged perpendicularly, and the first crank is located below the second crank.

6. The traction mechanism according to claim 4 , wherein the first end of the second crank and the second end of the first crank are respectively connected to two ends of the transmission shaft through splines.

7. The traction mechanism according to claim 4 , wherein the lateral connecting rod is adjustable in length.

8. The traction mechanism according to claim 7 , wherein the lateral connecting rod comprises:
a lateral connecting rod thread sleeve with two internal thread segments wherein the two internal thread segments screw in opposite directions; and
two sub-lateral connecting rods, wherein one end of each sub-lateral connecting rod is in threaded connection with one internal thread segment of the lateral connecting rod thread sleeve, and the other end of each sub-lateral connecting rod includes a hinging joint.

9. The traction mechanism according to claim 1 , wherein the traction connecting rod is adjustable in length.

10. The traction mechanism according to claim 9 , wherein the traction connecting rod comprises:
a traction connecting rod thread sleeve with two internal thread segments, wherein the two internal thread segments screw in opposite directions; and
two sub-traction connecting rods, wherein one end of each sub-traction connecting rod is in threaded connection with one internal thread segment of the traction connecting rod thread sleeve, and the other end of each sub-traction connecting rod includes a hinging joint.

11. The traction mechanism according to claim 1 , wherein the transmission shaft is sleeved with a transmission shaft vehicle body connecting base configured to be connected to the vehicle body.

12. The traction mechanism according to claim 1 , wherein the transmission shaft is sleeved with a plurality of transmission shaft vehicle body connecting bases, spaced apart in an up-down direction.

13. The traction mechanism according to claim 1 , further comprising:
a crank vehicle body connecting base, connected to the vehicle body, and hinged to the first end of the traction crank; and
a crank bogie connecting base, connected to the bogie frame, and hinged to the second end of the traction crank.

14. The traction mechanism according to claim 13 , wherein the first end of the traction crank includes a damping bushing.

15. A bogie assembly, comprising a traction mechanism, wherein the traction mechanism comprises:
a traction component, comprising a traction connecting rod, a first crank and a transmission shaft, wherein the traction connecting rod is spherically hinged to a bogie frame, a first end of the first crank is hinged to the traction connecting rod, a second end of the first crank is fixedly connected to the transmission shaft, and the transmission shaft is rotatably connected to a vehicle body; and
a traction crank, a first end of the traction crank being hinged to the vehicle body and a second end of the traction crank being spherically hinged to the bogie frame, wherein the first end of the first crank is away from the traction crank.

16. The bogie assembly according to claim 15 , wherein the traction connecting rod is adjustable in length.

17. The bogie assembly according to claim 15 , wherein the transmission shaft is sleeved with a plurality of transmission shaft vehicle body connecting bases, spaced apart in an up-down direction.

18. The bogie assembly according to claim 15 , further comprising:
a crank vehicle body connecting base, connected to the vehicle body, and hinged to the first end of the traction crank; and
a crank bogie connecting base, connected to the bogie frame, and hinged to the second end of the traction crank.

19. The bogie assembly according to claim 15 , wherein the first end of the traction crank includes a damping bushing.

20. A straddle-type monorail vehicle, comprising a bogie assembly, wherein the bogie assembly comprises a traction mechanism, and the traction mechanism comprises:
a traction component, comprising a traction connecting rod, a first crank and a transmission shaft, wherein the traction connecting rod is spherically hinged to a bogie frame, a first end of the first crank is hinged to the traction connecting rod, a second end of the first crank is fixedly connected to the transmission shaft, and the transmission shaft is rotatably connected to a vehicle body; and
a traction crank, a first end of the traction crank being hinged to the vehicle body and a second end of the traction crank being spherically hinged to the bogie frame, wherein the first end of the first crank is away from the traction crank.

Assignees

• Byd Co Ltd

Inventors

• Ren Lin
• Li Daolin
• Tan Zhicheng

Classifications

• B61B13/04

  Monorail systems · CPC title

• B61F5/24 Primary

  Means for damping or minimising the canting, skewing, pitching, or plunging movements of the underframes · CPC title

• B61G9/20 Primary

  Details; Accessories · CPC title

• B61F5/50

  Other details · CPC title

• B61F3/00

  Types of bogies (B61F5/00 takes precedence) · CPC title