Self-adjusting torque device

Patent metadata

Field	Value
Publication number	US-9793786-B2
Application number	US-201414168130-A
Country	US
Kind code	B2
Filing date	Jan 30, 2014
Priority date	Sep 28, 2007
Publication date	Oct 17, 2017
Grant date	Oct 17, 2017

Abstract

There is provided a torque device which includes a driving module, a driven module and an adjusting module. The adjusting module comprises a magnetic torque device, wherein an input end of the magnetic torque device is capable of being driven by the driving module, an output end of the magnetic torque device is capable of driving the driven module, the input end and the output end of the magnetic torque device have a variable distance therebetween, and the input end is capable of driving the output end to transfer a torque in operation.

First claim

What is claimed is:

1. A torque device, including:
a driving module;
a driven module capable of driving a winding material; and
an adjusting module comprising a magnetic torque device, wherein an input end of the magnetic torque device is capable of being driven by the driving module, an output end of the magnetic torque device is capable of driving the driven module, the input end and the output end of the magnetic torque device have a variable straight line distance between the input end and the output end in a direction from the input end to the output end, and the input end is capable of driving the output end to transfer a torque in operation; and
wherein the driven module comprises a movable screw that is movable along an axis direction, and the driving module comprises a fixed screw that is fixed along the axis direction, and the movable screw that is movable along the axis direction is configured to be movable to change the variable straight line distance between the input end and the output end of the magnetic torque device.

2. The self-adjusting torque device of claim 1 , wherein
the driving module includes a first driving screw, a second driving screw, and a third driving screw that have fixed positions, the first driving screw and the second driving screw mesh with each other, the second driving screw and the third driving screw are connected with each other, the third driving screw is the fixed screw, and a front end of the first driving screw is configured for connection with a power inputting apparatus;
the movable screw that is movable along the axis direction meshes with the third driving screw and is configured for connection with the winding material at a rear end of the driven screw; and
the input end of the magnetic torque device is connected to a rear end of the first driving screw, and the output end is connected to a front end of the movable screw.

3. The torque device of claim 1 , wherein
the driving module includes a first driving gear, a second driving gear, and a third driving screw that have fixed positions, the first driving gear and the second driving gear mesh with each other, the second driving gear and the third driving screw are connected with each other, the third driving screw is the fixed screw, and a front end of the first driving gear is configured for connection with a power inputting apparatus;
the movable screw that is movable along the axis direction meshes with the third driving screw and is configured for connection with the winding material at a rear end of the driven screw; and
the input end of the magnetic torque device is connected to a rear end of the first driving gear, and the output end is connected to a front end of the movable screw.

4. The self-adjusting torque device of claim 1 , wherein
the driving module includes a first driving rotary wheel, a second driving rotary wheel, and a third driving screw that have fixed positions, the first driving rotary wheel and the second driving rotary wheel are coupled by a belt, the second driving rotary wheel and the third driving screw are connected with each other, the third driving screw is the fixed screw, and a front end of the first driving rotary wheel is configured for connection with a power inputting apparatus;
the movable screw that is movable along the axis direction meshes with the third driving screw and is configured for connection with the winding material at a rear end of the driven screw; and
the input end of the magnetic torque device is connected to a rear end of the first driving rotary wheel, and the output end is connected to a front end of the movable screw.

5. The torque device of claim 1 , wherein
the driving module includes a first driving gear, a second driving gear, and a third driving screw that have fixed positions, the first driving gear and the second driving gear are coupled by a chain, the second driving gear and the third driving screw are connected with each other, the third driving screw is the fixed screw, and a front end of the first driving gear is configured for connection with a power inputting apparatus;
the movable screw that is movable along the axis direction meshes with the third driving screw and is configured for connection with the winding material at a rear end of the driven screw; and
the input end of the magnetic torque device is connected to a rear end of the first driving gear, and the output end is connected to a front end of the movable screw.

Assignees

• Beijing Boe Optoelectronics Tech Co Ltd
• Boe Technology Group Co Ltd

Inventors

• Song Hangbin

Classifications

• B65H59/043 Primary

  with a braking force varying proportionally to the diameter or the weight of the package being unwound · CPC title

• Y10T464/30

  Cross-Sectional Technologies · mapped topic

• B65H59/385

  Regulating winding speed · CPC title

• H02K49/00 Primary

  Dynamo-electric clutches; Dynamo-electric brakes · CPC title

• H02K49/10

  of the permanent-magnet type · CPC title