Remote winch clutch system

Patent metadata

Field	Value
Publication number	US-10618784-B2
Application number	US-201916291863-A
Country	US
Kind code	B2
Filing date	Mar 4, 2019
Priority date	Mar 8, 2013
Publication date	Apr 14, 2020
Grant date	Apr 14, 2020

Abstract

A winch is provided including a rotatable drum and a gear train drivingly connecting a motor to the rotatable drum. The gear train includes a clutch that is operable to be disengaged to allow the rotatable drum to free spool. A clutch actuator is provided for disengaging the clutch and the clutch includes a pivoting pawl having a first end that engages a clutch dog of a planetary ring gear and the clutch actuator includes an electro-magnetic solenoid having a plunger that engages a second end of the pivoting pawl.

First claim

The invention claimed is:

1. A winch, comprising:
a rotatable drum;
a motor;
a gear train drivingly connecting the motor to the rotatable drum and including three stages, wherein the rotatable drum is positioned between the motor and the gear train;
a remote activated clutch actuator operable to be disengaged to allow the rotatable drum to free spool, wherein the remote activated clutch actuator includes a solenoid, the solenoid including a plunger that engages the remote activated clutch actuator, a first coil and a second coil, the first coil being higher power than the second coil, the first coil being operated along with the second coil to retract the plunger and the plunger being held in a retracted position by the second coil;
a controller operable to provide control signals to the motor and the remote activated clutch actuator; and
a remote control device in communication with the controller and including a free-spool button, wherein the free-spool button is configured to send a signal to the controller to activate the remote activated clutch actuator to shift the gear train to free-spool mode when the free-spool button is pressed on the remote control device.

2. The winch of claim 1 , wherein the remote control device further includes at least one of a winch power-in button and a winch power-out button.

3. The winch of claim 1 , further comprising a limit switch in communication with the controller to indicate that the remote activated clutch actuator is in a disengaged position to allow the rotatable drum to free spool.

4. The winch of claim 1 , wherein each of the first coil and the second coil are concentric with the plunger.

5. The winch of claim 1 , wherein the remote control device is handheld and wireless.

6. The winch of claim 5 , wherein the remote control device includes a display, and wherein the display provides visual feedback including one or more of a winch motor current draw, winch motor temperature, winch load, and winch clutch position.

7. The winch of claim 1 , wherein the gear train includes at least one ring gear and a plurality of clutch dogs arranged on an outer circumference of the at least one ring gear, such that when the remote activated clutch actuator is in an engaged position, the remote activated clutch actuator is engaged with at least one of the plurality of clutch dogs.

8. The winch of claim 1 , wherein the three stages includes a first stage planetary gear set driven by a drive shaft, a second stage planetary gear set driven by the first stage planetary gear set, and a third stage planetary gear set driven by the second stage planetary gear set, wherein the third stage planetary gear set provides torque to the rotatable drum.

9. The winch of claim 8 , wherein the first stage planetary gear set includes a first sun gear drivingly connected to the drive shaft, a first plurality of planet gears driven by the first sun gear, a first ring gear in meshing engagement with the first plurality of planet gears and fixed in the housing, and a first planetary carrier supporting the first plurality of planet gears.

10. The winch of claim 9 , wherein the second stage planetary gear set includes a second sun gear driven by the first planetary carrier, a second plurality of planet gears driven by the second sun gear, a second ring gear in meshing engagement with the second plurality of planet gears, and a second planetary carrier supporting the second plurality of planet gears.

11. The winch of claim 10 , wherein the third stage planetary gear set includes a third sun gear driven by the second planetary carrier, a third plurality of planet gears driven by the third sun gear, a third ring gear in meshing engagement with the third plurality of planet gears and fixed in the housing, and a third planetary carrier supporting the third plurality of planet gears, wherein the third planetary carrier provides driving torque to the rotatable drum.

12. The winch of claim 1 , wherein the solenoid includes a spring, such that the plunger is biased in a direction that engages the remote activated clutch actuator with a clutch dog of a ring gear.

13. The winch of claim 12 , wherein, responsive to operating the second coil and the first coil to retract the plunger, the remote activated clutch actuator is disengaged from the clutch dog of the ring gear.

14. A winch, comprising:
a rotatable drum;
a motor;
a gear train drivingly connecting the motor to the rotatable drum;
a clutch actuator operable to be disengaged to allow the rotatable drum to free spool including a solenoid with a plunger that engages the clutch actuator, a first coil and a second coil, the first coil being higher power than the second coil, the first coil being operated along with the second coil to retract the plunger and the plunger being held in a retracted position by the second coil;
a controller operable to provide control signals to the motor and the clutch actuator; and
a wireless remote device in communication with the controller and including a plurality of buttons.

15. The winch of claim 14 , wherein the plurality of buttons includes a free-spool button configured to send a signal to the controller to activate the clutch actuator to shift the gear train to free-spool mode when the free-spool button is pressed on the remote device.

16. The winch of claim 14 , wherein the plurality of buttons includes at least one of a winch power-in button and a winch power-out button.

17. The winch of claim 14 , wherein the remote device includes a display, and wherein the display provides visual feedback including one or more of a winch motor current draw, winch motor temperature, winch load, and winch clutch position.

18. The winch of claim 1 , wherein each of the first coil and the second coil are concentric with the plunger.

19. The winch of claim 1 , wherein the gear train includes at least one ring gear and a plurality of clutch dogs arranged on an outer circumference of the at least one ring gear, such that when the clutch actuator is in an engaged position, the clutch actuator is engaged with at least one of the plurality of clutch dogs.

20. The winch of claim 1 , wherein the gear train includes three stages including a first stage planetary gear set driven by a drive shaft, a second stage planetary gear set driven by the first stage planetary gear set, and a third stage planetary gear set driven by the second stage planetary gear set, wherein the third stage planetary gear set provides torque to the rotatable drum.

Assignees

• Warn Ind Inc

Inventors

• Averill Bryan M
• Heravi Oliver
• Walston Jeff
• Pauwels Garrett F
• Christensen Kevin M

Classifications

• B66D1/12 Primary

  incorporating electric motors · CPC title

• B66D1/40

  Control devices · CPC title

• B66D1/22

  Planetary or differential gearings (for actuating grab buckets B66D1/70 ){, i.e. with planet gears having movable axes of rotation} · CPC title

• B66D1/16 Primary

  the drums or barrels being freely rotatable {, e.g. having a clutch activated independently of a brake (B66D1/20, B66D1/22, B66D1/24 take precedence; clutches activated alternately with brakes B66D1/14, slip couplings B66D1/14)} · CPC title

• B66D1/56

  Adaptations of limit switches · CPC title