Method for operating a chain drive and assembly having a chain drive

Patent metadata

Field	Value
Publication number	US-10495195-B2
Application number	US-201515539286-A
Country	US
Kind code	B2
Filing date	Dec 16, 2015
Priority date	Dec 23, 2014
Publication date	Dec 3, 2019
Grant date	Dec 3, 2019

Abstract

A method of operating a chain drive that includes sprockets. Tensile chain moments on the sprockets are determined and a specification value for operating the chain drive is determined therefrom in an automated manner. A corresponding assembly has a chain drive with sprockets and with a control device at least partly associated with the chain drive. The control device is configured for carrying out the method and a specification value for load distribution among the two drives for operating the chain drive is determined therefrom in an automated manner.

First claim

The invention claimed is:

1. A method of operating a chain drive having sprockets, the method comprising:
determining tensile chain moments acting on the sprockets; and
determining from the tensile chain moments a specification value for operating the chain drive in an automated process; and
operating the chain drive with the specification value.

2. The method according to claim 1 , wherein the step of determining the specification value comprises taking into account four forces, the four forces each corresponding to a tensile chain force at a contact point between a chain and a sprocket and a tensile chain force at a release point of each of the sprockets.

3. The method according to claim 1 , which comprises analyzing a time-dependent or angle of rotation-dependent profile of the tensile chain moments.

4. The method according to claim 1 , which comprises determining extreme sprocket moments for each of the tensile chain moments and determining therefrom a tensile chain force at a contact point and a tensile chain force at a release point of each of the sprockets in each case.

5. The method according to claim 1 , wherein the step of determining the specification value comprises determining a chain tension or an adjustment value for adjusting an axle spacing between the sprockets as the specification value.

6. The method according to claim 1 , wherein the step of determining the specification value comprises determining a specification value for a load distribution among drives for operating the chain drive as the specification value or from the specification value in an automated manner.

7. The method according to claim 1 , which comprises determining a tensile chain moment with a sensor.

8. The method according to claim 7 , wherein the sensor is at least one sensor selected from the group consisting of a revolution rate sensor, a force sensor, and a torque sensor.

9. The method according to claim 7 , wherein the sensor is disposed either on the sprocket, on a drive of the sprocket or on a gearbox associated with the sprocket and the drive.

10. The method according to claim 1 , which comprises determining a tensile chain moment indirectly.

11. The method according to claim 10 , which comprises determining the tensile chain moment indirectly from a characteristic variable or a control variable of a drive of the sprocket.

12. An assembly, comprising:
a chain drive with sprockets;
a control device associated with said chain drive, wherein said control device is configured for carrying out the method according to claim 1 .

13. The assembly according to claim 12 , wherein said chain drive is a component of a chain scraper conveyor or a shearing machine.

14. The assembly according to claim 13 , wherein said chain drive is a component of a mining shearing machine.

Assignees

• Voith Patent Gmbh

Inventors

• Ziegler Manfred

Classifications

• F16H7/08

  Means for varying tension of belts, ropes or chains  (pulleys of adjustable construction F16H55/52) · CPC title

• F16H2007/0887

  the tension being a function of load · CPC title

• B65G23/02 Primary

  Belt- or chain-engaging elements · CPC title

• B65G23/44

  Belt or chain tensioning arrangements · CPC title

• F16H7/14 Primary

  of a driving or driven pulley · CPC title