Trolley for a lifting device

Patent metadata

Field	Value
Publication number	US-10597263-B2
Application number	US-201515525524-A
Country	US
Kind code	B2
Filing date	Nov 27, 2015
Priority date	Nov 28, 2014
Publication date	Mar 24, 2020
Grant date	Mar 24, 2020

Abstract

A trolley for a lifting device with lifting gear arranged on a support frame and wheels which are mounted on the support frame, via which the trolley can be moved on a support, and at least one first wheel of which is mounted on an axle. The axle can be driven together with the wheel by means of a drive motor. The trolley provides a reliable transmission of drive forces between the wheels and the rail with the drivable first wheel connected to at least one of the other wheels in a driving manner via a flexible drive such that the axle is arranged between the drive motor and the flexible drive and thus the flexible drive is connected downstream of the axle in a driving manner so that the flexible drive can be driven by the axle.

First claim

The invention claimed is:

1. A trolley for lifting gear, the trolley being designed as a monorail trolley comprising:
a lifting mechanism arranged on a support frame and comprising running wheels which are mounted on the support frame and via which the trolley can be moved on a beam and of which at least one first running wheel is mounted on an axle and the axle can be driven together with the running wheel by means of a drive motor, wherein the drivable first running wheel has a circumferential running surface and the running surface is designed and arranged such that it is in contact with the beam when the trolley moves on the beam, wherein the drivable first running wheel is drivingly connected to at least one of the further running wheels via a traction mechanism such that the axle is arranged between the drive motor and the traction mechanism and thus the traction mechanism is drivingly connected downstream of the axle, so that the traction mechanism can be driven by the axle, and the running surface is in contact with the beam when the trolley moves on the beam outside of the traction mechanism, wherein in each case a traction mechanism disk is drivingly allocated to the driven running wheels and the traction mechanism rotates about the traction mechanism disks, and wherein (i) the driven running wheels and the associated traction mechanism disk are each formed in one piece or (ii) the driven running wheels and the associated traction mechanism disk are drivingly connected to one another in each case by means of a motor shaft or an axle, and wherein the driven running wheels are acted upon via resiliently biased friction rollers in the direction of the beam serving as the travel rail.

2. The trolley as claimed in claim 1 , wherein the driven first running wheel and the at least one of the further running wheels are arranged, as seen in the direction of travel of the trolley, one behind the other and on a common side of the beams.

3. The trolley as claimed in claim 2 , wherein the at least one of the further running wheels can be driven by the driven first running wheel via the traction mechanism.

4. The trolley as claimed in claim 3 , wherein the traction mechanism is designed as a V-ribbed belt.

5. The trolley as claimed in claim 1 , wherein the traction mechanism disk adjoins the respective running surface of the driven running wheels.

6. The trolley as claimed in claim 1 , wherein the at least one of the further running wheels can be driven by the driven first running wheel via the traction mechanism.

7. The trolley as claimed in claim 6 , wherein the traction mechanism is designed as a V-ribbed belt.

8. The trolley as claimed in claim 1 , wherein the traction mechanism is designed as a V-ribbed belt.

9. The trolley as claimed in claim 1 , wherein the driven running wheels and the associated traction mechanism disk are each formed in one piece and wherein the driven running wheels and the associated traction mechanism disk are drivingly connected to one another in each case by means of a motor shaft or an axle.

10. The trolley as claimed in claim 9 , wherein the traction mechanism disk adjoins the respective running surface of the driven running wheels.

11. The trolley as claimed in claim 9 , wherein the driven running wheels are acted upon via resiliently biased friction rollers in the direction of the beam serving as the travel rail.

Assignees

• Konecranes Global Corp

Inventors

• Zhao Dingyuan
• Wang Liming
• Yao Rui
• Imbusch Gereon
• Moll Oliver
• Uzun Ahmet
• Schulte Franz

Classifications

• B66C11/06 Primary

  running on monorails (overhead railway systems B61B) · CPC title

• B66C9/14 Primary

  Trolley or crane travel drives (rope, cable, or chain drives for loads or trolleys B66C11/16; control B66C13/18) · CPC title