Linear transport system, motor module and guide rail for a linear transport system

Patent metadata

Field	Value
Publication number	US-11344900-B2
Application number	US-202017138378-A
Country	US
Kind code	B2
Filing date	Dec 30, 2020
Priority date	Jan 14, 2020
Publication date	May 31, 2022
Grant date	May 31, 2022

Abstract

A linear transport system comprising a linear motor with at least a motor module and at least a conveyor driven by the linear motor along a path of motion is described. The motor module thereby comprises a stator magnetically interacting with a magnet device of the conveyor and having a plurality of stator teeth arranged side by side along the path of motion and a plurality of electric coils each wound around a stator tooth. The linear transport system further comprises a fluid system comprising at least a fluid channel passing through a stator tooth of the stator of the motor module.

First claim

What is claimed is:

1. A linear transport system comprising a linear motor having at least a motor module and at least a conveyor driven by the linear motor along a path of motion,
wherein said motor module comprises a stator magnetically interacting with a magnetic device of said conveyor, said stator having a plurality of stator teeth arranged side by side along said path of motion and a plurality of electric coils each wound around a stator tooth, and
wherein the linear transport system further comprises a fluid system comprising at least a fluid channel running through a stator tooth of the stator.

2. The linear transport system according to claim 1 , wherein the fluid channel is configured in a stator tooth around which no electric coil is wound.

3. The linear transport system according to claim 1 , wherein the fluid channel is formed by a tube arranged in a bore passing through the respective stator tooth or in a groove formed in a side wall of the respective stator tooth.

4. The linear transport system according to claim 1 , wherein the fluid channel has a flattened cross-sectional profile, the diameter of which is larger in a magnetizing direction z of the stator tooth than its diameter in a direction x perpendicular thereto.

5. The linear transport system according to claim 1 ,
wherein the linear transport system comprises a guide rail, and
wherein the fluid channel is configured as a supply channel of a lubrication system for supplying a lubricant to at least one running surface of the guide rail.

6. The linear transport system according to claim 1 ,
wherein the fluid system comprises a spraying device having a nozzle for spraying a liquid or gaseous spray medium, and
wherein the fluid channel is configured as a feed channel for feeding the gaseous spray medium to the nozzle.

7. The linear transport system according to claim 1 ,
further comprising a hydraulic or pneumatic actuator device having a hydraulic or pneumatic actuator, and
wherein the fluid channel is configured as a supply channel for supplying a liquid or gaseous pressure medium to the actuator.

8. A motor module for a linear transport system for driving at least a conveyor along a path of motion,
wherein the motor module comprises a stator which, during operation of the linear transport system, magnetically interacts with a magnet device of the conveyor,
wherein a fluid channel is formed by a tube arranged in a bore passing through the stator, and
wherein the motor module is configured for mounting onto a guide rail, and wherein the fluid channel is configured as a supply channel of a lubrication system associated with the linear transport system for supplying a lubricant to at least one running surface of the guide rail.

9. The motor module according to claim 8 , wherein the stator has a plurality of stator teeth arranged next to one another along the path of motion and a plurality of electric coils each wound around a stator tooth, wherein at least one of the stator teeth has the fluid channel for transporting a fluid through the motor module.

10. The motor module according to claim 9 , wherein the fluid channel is formed in a stator tooth around which no electric coil is wound.

11. The motor module according to claim 9 , wherein the fluid channel is formed by the tube arranged in a bore passing through the stator tooth or in a groove formed on a side wall of the respective stator tooth.

12. The motor module according to claim 8 , wherein the fluid channel has a flattened cross-sectional profile, the diameter of which is larger in a magnetizing direction z of the stator tooth than its diameter in a direction x perpendicular thereto.

13. The motor module according to claim 8 , wherein the fluid channel is used as a supply channel for supplying a liquid or gaseous spray medium to a spray device.

14. The motor module according to claim 8 , wherein the fluid channel is formed as a supply channel of an actuator device for supplying a liquid or gaseous pressure medium to a hydraulic or pneumatic actuator.

15. A guide rail for a linear transport system with at least a motor module for driving at least a conveyor along a path of motion predetermined by the guide rail, comprising:
a mounting surface for mounting onto a correspondingly formed mounting surface of the motor module, and
at least a fluid channel fluidically communicating with a fluid connection formed in the mounting surface of the motor module.

16. The guide rail according to claim 15 , wherein the fluid channel is formed as a supply channel of a lubrication system for supplying a lubricant to at least a running surface of the guide rail.

17. The guide rail according to claim 15 ,
wherein the guide rail has a nozzle for spraying a liquid or gaseous spray medium, and
wherein the fluid channel is configured as a supply channel for supplying the liquid or gaseous spray medium to the nozzle.

18. The guide rail according to claim 15 ,
wherein the guide rail comprises a hydraulic or pneumatic actuator, and
wherein the fluid channel is configured as a supply channel for supplying a liquid or gaseous pressure medium to the hydraulic or pneumatic actuator.

Assignees

• Beckhoff Automation Gmbh

Inventors

• Neufeld Jörg
• Sinzenich Andreas
• Bömer-Schulte Friedrich

Classifications

• B65G54/02 Primary

  electrostatic, electric, or magnetic · CPC title

• B05B3/18 Primary

  with elements moving in a straight line, e.g. along a track; Mobile sprinklers {(watering arrangements making use of movable installations A01G25/09)} · CPC title

• B65G35/06

  comprising a load-carrier moving along a path, e.g. a closed path, and adapted to be engaged by any one of a series of traction elements spaced along the path (effecting drive at two or more points spaced along the length of an endless conveyor B65G23/32) · CPC title

• B05B15/65

  Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits · CPC title

• B05B13/0221

  characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts (B05B13/0207 takes precedence; conveyors in general B65G) · CPC title