Winch

• US 9,266,702 B2
• Filed: 02/22/2013
• Issued: 02/23/2016
• Est. Priority Date: 06/29/2012
• Status: Active Grant

• Current Assignee: Warn Industries Incorporated (LKQ Corporation)
• Original Assignee: Warn Industries Incorporated (LKQ Corporation)
• Inventors: Fretz, Darren G., Averill, Bryan M., Shuyler, Steven W., Borntrager, Bryon M., Hartelt, Kyle A., Steele, Glenda M.
• Primary Examiner(s): Marcelo, Emmanuel M
• Assistant Examiner(s): GALLION, MICHAEL E
• Application Number:
  US13/774,746
• Publication Number:
  US 20140001427A1
• Time in Patent Office: 1,096 Days
• Field of Search: 254/323, 254/328, 254/342, 254/278, 254/279, 254/362
• US Class Current: 1/1
• CPC Class Codes: B66D 1/02 Driving gear
• CPC Class Codes: B66D 1/12 incorporating electric motors
• CPC Class Codes: B66D 1/14 Power transmissions between power sources and drums or barrels including brakes, one-way brakes, one-way clutches, clutches activated alternately with brakes, fixed ratio gearing unless otherwise provided for in B66D1/16 - B66D1/24
• CPC Class Codes: B66D 1/22 Planetary or differential gearings for actuating grab buckets B66D1/70 , i.e. with planet gears having movable axes of rotation
• CPC Class Codes: B66D 1/28 Other constructional details
• CPC Class Codes: B66D 1/36 Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains
• CPC Class Codes: B66D 1/40 Control devices
• CPC Class Codes: B66D 5/00 Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads for pulley blocks B66D3/10

Abstract

A winch includes a motor having a motor housing including a motor case and an integrated first drum support attached to the motor case for closing an end of the motor case. A gear reduction unit is drivingly attached to the motor and has a gear housing including a gear case and second drum support attached to the gear case. A tie plate is connected to the first and second drum supports. A control unit is removably mounted to the tie plate. A rotatable drum is supported by the first and second drum supports.

Claims

1. A winch, comprising:

a motor having a motor housing including a motor case and a first drum support attached to said motor case for closing an end of said motor case, said motor including a brush holder assembly attached to said first drum support via a brush plate of the brush holder assembly, the brush plate supporting a plurality of brushes contacting an armature of the motor;

a gear reduction unit drivingly attached to said motor; and

a rotatable drum drivingly connected to said motor and supported by said first drum support and a second drum support;

wherein said first drum support includes a plurality of support ribs that protrude into an interior of the motor case and wherein the motor case includes internal ribs aligned with the plurality of support ribs, the plurality of support ribs and the internal ribs supporting a field coil flux ring of the motor, the field coil flux ring positioned within the motor case.

2. The winch according to claim 1, wherein the brush plate of the motor is mounted directly to the first drum support by a plurality of grounding screws and wherein a ground terminal is connected to said first drum support, the ground terminal electrically coupled to a battery ground cable.

12. The winch according to claim 1, wherein said plurality of threaded bores each have a central axis that intersect an axis of rotation of said motor.

3. A winch, comprising:

a motor having a motor housing including a motor case and a first drum support directly coupled to said motor case for closing an end of said motor case, said motor including an armature terminal electrically coupling an armature of the motor to a control unit of the winch and field terminals electrically coupling a field coil assembly of the motor to the control unit, the armature terminal and field terminals attached to said first drum support; and

a rotatable drum drivingly connected to said motor and supported by said first drum support and a second drum support.

4. The winch according to claim 3, wherein said first drum support includes an isolator for electrically isolating said armature terminal and said field terminals from said first drum support and wherein a plurality of o-rings surround the armature terminal and field terminals between a top portion and bottom portion of the isolator to provide a seal around each of the armature terminal and field terminals.

5. The winch according to claim 3, said armature terminal and said field terminals being linearly aligned with one another along a top side of the first drum support and wherein the first drum support is directly coupled to the motor case by corresponding mounting bosses on the motor case and the first drum support.

6. The winch according to claim 3, said armature having a drive shaft and said motor including a brush plate disposed on a drive shaft side of said armature, the brush plate coupled to the first drum support.

7. A winch, comprising:

a motor having a motor housing including a motor case and a first drum support attached to said motor case for closing an end of said motor case, said motor including a flux ring including a plurality of field coils, the flux ring clamped between said motor case and said first drum support and supported by a plurality of ribs extending from the first drum support and into the motor case, the ribs contacting and surrounding the flux ring; and

a rotatable drum drivingly connected to said motor.

8. The winch according to claim 7, wherein the motor case includes internal ribs contacting and surrounding the flux ring, the internal ribs aligned with the plurality of ribs, wherein said motor case and said first drum support are made of aluminum, the plurality of ribs, internal ribs and aluminum motor case dissipating heat from the field coils and into the motor case and wherein the plurality of field coils are mounted inside the flux ring around an inner circumference of the flux ring.

9. A winch, comprising:

a motor having a motor housing including a motor case comprising aluminum and a first drum support comprising aluminum attached to said motor case for closing an end of said motor case, the first drum support including a plurality of support ribs extending from the first drum support and into the motor case and the motor case including internal ribs aligned with the support ribs, the support ribs and the internal ribs supporting an internal flux ring of the motor;

a gear reduction unit drivingly attached to said motor and having a gear housing including a gear case and a second drum support attached to said gear case for closing an end of said gear case, wherein said gear case and said second drum support are shaped generally symmetric to said motor case and said first drum support; and

a rotatable drum drivingly connected to said motor and supported by said first and second drum supports.

10. The winch according to claim 9, further comprising a tie structure connecting said first and second drum supports.

11. The winch according to claim 10, wherein said tie structure includes two angled side rails connected by two cross rails, the two side rails and two cross rails defining a central opening positioned above the rotatable drum, each of the two side rails including a mounting aperture on either end of each of the two side rails, each mounting aperture being aligned with one of a plurality of threaded bores in one of said first and second drum supports.

13. A winch, comprising:

a motor with a motor housing formed by a motor case comprising aluminum and a first drum support comprising aluminum, the first drum support directly coupled to the motor case and including a plurality of ribs protruding into an interior of the motor case and supporting a field coil flux ring of the motor, the motor including a plurality of motor terminals for electrically connecting the motor to a control unit, the motor terminals linearly aligned with one another at a top of the first drum support;

a gear case and a second drum support attached to said gear case, said gear case housing a gear assembly drivingly connected to said motor;

a drum drivingly connected to said gear assembly and coupled between and to said first and second drum support;

a tie structure including two angled side rails extending between the first and second drum supports and two cross rails connecting the two side rails, the two side rails and two cross rails forming a central opening above the drum, the tie structure coupling the first drum support to the second drum support via aligned mounting apertures in the two angled side rails and threaded bores in the first and second drum supports, each of the threaded bores having a central axis that intersects an axis of rotation of the motor; and

a rope cover removably attached in front of said drum to the tie structure and one of the first and second drum supports.

14. The winch according to claim 13, wherein said rope cover includes a protruding retention feature on a first side of the rope cover connected to a corresponding recessed retention feature on one of said first and second drum supports.

15. The winch according to claim 13, wherein said rope cover includes a protruding retention feature on a top side of the rope cover connected to a corresponding recessed retention feature on one of the two side rails of the tie structure.

16. The winch according to claim 13, wherein said rope cover includes a branding thereon and wherein the two angled side rails are angled downward toward the drum.

17. The winch according to claim 13, wherein said rope cover includes at least one opening therein.