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US 10,590,985 B1Granted
Mount system with bearing race friction lock assembly for agricultural machine
AssigneeCNH Industrial America LLC
InventorsEdward A. Lagred, Martin L. Krohn
Life of this patent
Estimating the term…
Abstract
A steering cylinder mount system with a bearing race frictional lock assembly for an agricultural machine is provided that frictionally secures a bearing's inner race with respect to another component in a manner that ensures the bearing's inner and outer races rotate with respect to each other in preference to rotating the inner race with respect to an internally arranged supporting component. The bearing race friction lock assembly may frictionally engage multiple surfaces of the spherical bearing's inner race to lock the inner race with respect to its inwardly arranged supporting component(s).
Claims20
A mount system for an agricultural machine, the mount system comprising:
- a steering cylinder with first and second ends;
- a mounting lug configured to support one of the first and second ends of the steering cylinder;
- a spherical bearing including:
- an outer race supported by the mounting lug;
- and
- an inner race supported by the spherical bearing outer race and configured to rotate and pivot angularly with respect to the spherical bearing outer race;
- an inner split spring bushing extending through the spherical bearing inner race, the inner split spring bushing having first and second ends;
- a first outer split spring bushing extending about the first end of the inner slit spring bushing;
- and
- a second outer split bushing extending about the second end of the inner split spring bushing;
- and
- a bearing race friction lock assembly that frictionally engages the first and second ends of the spherical bearing inner race and is configured to lock in rotational unison the spherical bearing inner race.
9 more elements
A mount system for an agricultural machine including a steering cylinder having first and second ends, the mount system comprising:
- a mounting lug configured to support one of the first and second ends of the steering cylinder;
- a spherical bearing including:
- an outer race supported by the mounting lug;
- and
- an inner race supported by the spherical bearing outer race and configured to rotate and pivot angularly with respect to the spherical bearing outer race;
- and
- a bearing race friction lock assembly that frictionally engages multiple surfaces of the spherical bearing inner race and is configured to lock in rotational unison the spherical bearing inner race;
- wherein the bearing race friction lock assembly further comprises:
- an inner split spring bushing mounted concentrically inside and frictionally engaging the spherical bearing inner race, wherein the inner split spring bushing is longer than the spherical bearing inner race and has:
- a first inner split spring bushing end that extends beyond the spherical bearing inner race in a first direction;
- and
- a second inner split spring bushing end that extends beyond the spherical bearing inner race in a second direction;
- a first outer split spring bushing mounted concentrically outside the first inner split spring bushing end;
- and
- a second outer split spring bushing mounted concentrically outside the second inner split spring bushing end.
12 more elements
A mount system for an agricultural machine, the mount system comprising:
- a mounting lug assembly, including:
- a mounting lug with a mounting lug bore;
- a spherical bearing, including:
- an outer race that is pressed into the bore of the mounting lug;
- and
- an inner race mounted concentrically in the outer race and configured to rotate and pivot angularly within the outer race, the inner race having:
- an inner circumferential surface that extends around an inner race bore;
- a steering cylinder, including:
- a yoke at an end of the steering cylinder, the yoke including:
- a first yoke lobe with a first yoke lobe bore;
- a second yoke lobe with a second yoke lobe bore coaxially aligned with the first yoke lobe bore;
- and
- a bearing race friction lock assembly, including:
- a sleeve mounted inside the spherical bearing inner race bore with a first end that extends beyond the spherical bearing in a first direction and a second end that extends beyond the spherical bearing in a second direction;
- a first collar mounted in the first yoke lobe bore and concentrically outside the first end of the sleeve;
- a second collar mounted in the second yoke lobe bore and concentrically outside the second end of the sleeve;
- and
- a fastener system extending through the sleeve and the first and second collars and engageable with the first and second ends of the sleeve, the fastener system applying a longitudinal compressive force to the first and second collars and the spherical bearing inner race to lock the first and second collars into rotational unison with the spherical bearing inner race.
15 more elements
A mount system for an agricultural machine, the mount system comprising:
- a mounting lug assembly, including:
- a mounting lug with a mounting lug bore;
- a spherical bearing, including:
- an outer race that is pressed into the bore of the mounting lug;
- and
- an inner race mounted concentrically in the outer race and configured to rotate and pivot angularly within the outer race, the inner race having:
- an inner circumferential surface that extends around an inner race bore;
- a steering cylinder, including:
- a yoke at an end of the steering cylinder, the yoke including:
- a first yoke lobe with a first yoke lobe bore;
- a second yoke lobe with a second yoke lobe bore coaxially aligned with the first yoke lobe bore;
- and
- a bearing race friction lock assembly, including:
- a sleeve mounted inside the spherical bearing inner race bore with a first end that extends beyond the spherical bearing in a first direction and a second end that extends beyond the spherical bearing in a second direction;
- a first collar mounted in the first yoke lobe bore and concentrically outside the first end of the sleeve;
- a second collar mounted in the second yoke lobe bore and concentrically outside the second end of the sleeve;
- and
- a fastener system extending through the sleeve and the first and second collars and applying a longitudinal compressive force to the first and second collars and the spherical bearing inner race to lock the first and second collars into rotational unison with the spherical bearing inner race;
- wherein each of the sleeve and first and second collars comprises a split spring bushing with each of the split spring bushings having a circumferential side wall:
- with a gap that allows the circumferential side wall to circumferentially compress from a resting state to a circumferentially compressed state;
- and
- that is configured to circumferentially bias outwardly toward the resting state from the circumferentially compressed state.
19 more elements
A mount system for an agricultural machine, the mount system comprising:
- a mounting lug assembly, including:
- a mounting lug with a mounting lug bore;
- a spherical bearing, including;
- an outer race that is pressed into the bore of the mounting lug;
- and
- an inner race mounted concentrically in the outer race and configured to rotate and pivot angularly within the outer race, the inner race having:
- an inner circumferential surface that extends around an inner race bore;
- a steering cylinder, including:
- a yoke at an end of the steering cylinder, the yoke including:
- a first yoke lobe with a first yoke lobe bore;
- a second yoke lobe with a second yoke lobe bore coaxially aligned with the first yoke lobe bore;
- and
- a bearing race friction lock assembly, including:
- a sleeve mounted inside the spherical bearing inner race bore with a first end that extends beyond the spherical bearing in a first direction and a second end that extends beyond the spherical bearing in a second direction;
- a first collar mounted in the first yoke lobe bore and concentrically outside the first end of the sleeve;
- a second collar mounted in the second yoke lobe bore and concentrically outside the second end of the sleeve;
- and
- a fastener system extending through the sleeve and the first and second collars and applying a longitudinal compressive force to the first and second collars and the spherical bearing inner race to lock the first and second collars into rotational unison with the spherical bearing inner race;
- wherein the mounting lug assembly is connected to a steering arm of the agricultural machine with the mounting lug moveable to push or pull the steering arm and pivot a wheel during a steering maneuver.
16 more elements
A mount system for an agricultural machine, the mount system comprising:
- a mounting lug assembly, including:
- a mounting lug with a mounting lug bore;
- a spherical bearing, including:
- an outer race that is pressed into the bore of the mounting lug;
- and
- an inner race mounted concentrically in the outer race and configured to rotate, and pivot angularly within the outer race, the inner race having:
- an inner circumferential surface that extends around an inner race bore;
- a steering cylinder, including:
- a yoke at an end of the steering cylinder, the yoke including:
- a first yoke lobe with a first yoke lobe bore;
- a second yoke lobe with a second yoke lobe bore coaxially aligned with the first yoke lobe bore;
- and
- a bearing race friction lock assembly, including:
- a sleeve mounted inside the spherical bearing inner race bore with a first end that extends beyond the spherical bearing in a first direction and a second end that extends beyond the spherical bearing in a second direction;
- a first collar mounted in the first yoke lobe bore and concentrically outside the first end of the sleeve;
- a second collar mounted in the second yoke lobe bore and concentrically outside the second end of the sleeve;
- and
- a fastener system extending through the sleeve and the first and second collars and applying a longitudinal compressive force to the first and second collars and the spherical bearing inner race to lock the first and second collars into rotational unison with the spherical bearing inner race;
- wherein the mounting lug assembly is connected to a frame of the agricultural machine, so the mounting lug is fixed with respect to the frame during the steering maneuver.
16 more elements
A mount system for an agricultural machine, the mount system comprising:
- a mounting lug assembly, including:
- a mounting lug with a mounting lug bore;
- a spherical bearing, including:
- an outer race that is pressed into the bore of the mounting lug;
- and
- an inner race mounted concentrically in the outer race and configured to rotate and pivot angularly within the outer race, the inner race having:
- an inner circumferential surface that extends around an inner race bore;
- a steering cylinder, including:
- a yoke at an end of the steering cylinder, the yoke including:
- a first yoke lobe with a first yoke lobe bore;
- a second yoke lobe with a second yoke lobe bore coaxially aligned with the first yoke lobe bore;
- and
- a bearing race friction lock assembly, including:
- a sleeve mounted inside the spherical bearing inner race bore with a first end that extends beyond the spherical bearing in a first direction and a second end that extends beyond the spherical bearing in a second direction;
- a first collar mounted in the first yoke lobe bore and concentrically outside the first end of the sleeve;
- a second collar mounted in the second yoke lobe bore and concentrically outside the second end of the sleeve;
- and
- a fastener system extending through the sleeve and the first and second collars and applying a longitudinal compressive force to the first and second collars and the spherical bearing inner race to lock the first and second collars into rotational unison with the spherical bearing inner race;
- wherein the mounting lug assembly is connected to an axle of the agricultural machine, so the mounting lug is fixed with respect to the axle during the steering maneuver.
16 more elements
A method of assembling a mount system for an agricultural machine, with the system including a mounting lug with a spherical bearing and a steering cylinder with a yoke with first and second yoke lobes connected to the mounting lug, the method comprising:
- pressing a first collar into a first yoke lobe of the yoke;
- pressing a second collar into a second yoke lobe of the yoke;
- arranging the mounting lug within the yoke so that the bores of the first collar, the second collar, and an inner race of the spherical bearing align with each other;
- pressing a sleeve through the bores of the first collar, the second collar, and the spherical bearing inner race so the sleeve concentrically and frictionally engages the first collar, the second collar, and the inner race of the spherical bearing;
- inserting a fastener through the sleeve such that a head of the fastener engages a first end of the sleeve;
- and
- tightening the fastener against a second end of the sleeve to lock at least the fastener, the sleeve, and the spherical bearing inner race for movement in unison with each other.
4 more elements
A method of assembling a mount system for an agricultural machine, with the system including a mounting lug with a spherical bearing and a steering cylinder with a yoke with first and second yoke lobes connected to the mounting lug, the method comprising:
- pressing a first collar into a first yoke lobe of the yoke;
- pressing a second collar into a second yoke lobe of the yoke;
- arranging the mounting lug within the yoke so that the bores of the first collar, the second collar, and an inner race of the spherical bearing align with each other;
- pressing a sleeve through the bores of the first collar, the second collar, and the spherical bearing inner race so the sleeve concentrically and frictionally engages the first collar, the second collar, and the inner race of the spherical bearing;
- inserting a fastener through the sleeve;
- and
- tightening the fastener to lock at least the fastener, the sleeve, and the spherical bearing inner race for movement in unison with each other;
- wherein the sleeve is defined by an inner split spring bushing that:
- circumferentially compresses while being driven into the spherical bearing inner race;
- and
- circumferentially biases outwardly toward a resting state and against and frictionally engages an inner circumferential surface of the spherical bearing inner race.
8 more elements
Dependencies are inferred from the claim text.