Crawler drive system

Patent metadata

Field	Value
Publication number	US-11518454-B2
Application number	US-202117144457-A
Country	US
Kind code	B2
Filing date	Jan 8, 2021
Priority date	May 19, 2017
Publication date	Dec 6, 2022
Grant date	Dec 6, 2022

Abstract

A drive assembly for a mining vehicle includes a frame, a housing coupled to the frame, and a motor positioned in the housing. The motor includes a motor frame with a first axial end and a second axial end opposite the first axial end. The drive assembly also includes a transmission that is positioned at least partially within the frame. The transmission is coupled to the motor frame at the first axial end. The drive assembly further includes a support assembly that couples the second axial end of the motor frame to the housing.

First claim

What is claimed is:

1. A drive assembly for a mining vehicle comprising:
a frame;
a housing coupled to the frame;
a motor positioned in the housing; the motor including a motor frame, the motor frame including a first axial end and a second axial end opposite the first axial end;
a transmission positioned at least partially within the frame, the transmission coupled to the motor frame at the first axial end; and
a support assembly coupling the second axial end of the motor frame to the housing.

2. The drive assembly of claim 1 , wherein the transmission is coupled to the motor with a direct shaft to shaft connection.

3. The drive assembly of claim 1 , further comprising a crawler track extending around the frame.

4. The drive assembly of claim 1 , wherein the support assembly couples the motor to an upper support of the housing such that the second axial end of the motor is suspended from the upper support.

5. The drive assembly of claim 1 , wherein the support assembly couples the motor to a lower support of the housing.

6. The drive assembly of claim 1 , wherein the housing includes a slot extending perpendicular to a first side of the frame, and wherein the support assembly includes a fastener that is slidable along the slot when installing the motor into the housing.

7. The drive assembly of claim 1 , wherein the motor includes a standardized face plate at the first axial end.

8. The drive assembly of claim 7 , wherein the transmission includes a first standardized input face coupled to the standardized face plate of the motor.

9. The drive assembly of claim 8 , wherein the motor includes a second standardized face plate at the second axial end.

10. The drive assembly of claim 9 , wherein the first standardized face plate has a different configuration than the second standardized face plate.

11. The drive assembly of claim 9 , wherein the second standardized face plate includes a NEMA C face.

12. The drive assembly of claim 8 , wherein the first standardized input face includes a NEMA D face.

13. The drive assembly of claim 1 , wherein the support assembly includes an elastic member between the motor and the housing.

14. The drive assembly of claim 1 , wherein the support assembly includes a mount having an upper flange portion and a lower yoke portion, the upper flange portion having an aperture and the lower yoke portion configured to be coupled to the second axial end of the motor.

15. The drive assembly of claim 14 , wherein the support assembly includes a fastener extending through the aperture and a nut coupled to an end of the fastener.

16. The drive assembly of claim 15 , wherein the nut is slidably receivable within a slot of the housing to couple the support assembly to the housing.

Assignees

• Joy Global Surface Mining Inc

Inventors

• Warr Owen J

Classifications

• B62D55/08 Primary

  Endless track units; Parts thereof · CPC title

• B62D55/12

  Arrangement, location, or adaptation of driving sprockets · CPC title

• B60K17/043

  Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel · CPC title

• B60K1/00

  Arrangement or mounting of electrical propulsion units (B60K7/00 takes precedence; arrangement or mounting of plural diverse prime-movers for mutual or common propulsion B60K6/00) · CPC title

• B62D55/13 Primary

  readily interchangeable modular type · CPC title