Roller of a support arrangement for a rotary milking platform

Patent metadata

Field	Value
Publication number	US-10036419-B2
Application number	US-201515303255-A
Country	US
Kind code	B2
Filing date	Apr 27, 2015
Priority date	Apr 29, 2014
Publication date	Jul 31, 2018
Grant date	Jul 31, 2018

Abstract

A roller of a support arrangement for a rotary milking platform, where the support arrangement includes a first rail member fixedly connected to the rotary platform, a second rail member stationarily arranged in a position below the platform, and a plurality of rollers arranged in a vertical space between the first rail member and the second rail member. Each roller includes a peripheral surface comprising a contact surface to be in contact with a contact portion of the first rail member and a contact portion of the second rail member. The peripheral surface of the roller includes two beveled surfaces arranged at opposite sides of the contact surface which are located at a smaller distance from a rotary axis of the roller than the contact surface.

First claim

The invention claimed is:

1. A support arrangement comprising:
a rotary milking platform,
a first rail member ( 4 ) fixedly connected to the rotary milking platform ( 1 ),
a second rail member ( 5 ) stationarily arranged in a position below the milking platform ( 1 ), and
a plurality of rollers arranged in a vertical space between the first rail member ( 4 ) and the second rail member ( 5 ),
wherein said roller ( 8 ) is one of said plurality of rollers, and comprises a peripheral surface ( 8 c ) comprising a contact surface ( 8 c 1 ) to be in contact with a contact portion ( 4 d ) of the first rail member ( 4 ) and a contact portion ( 5 d ) of the second rail member ( 5 ), wherein the peripheral surface ( 8 c ) of the roller ( 8 ) comprises two bevelled surfaces ( 8 c 2 ) arranged at opposite sides of the contact surface ( 8 c 1 ), the two bevelled surfaces ( 8 c 2 ) being located at a smaller distance (d) from a rotary axis ( 8 g ) of the roller ( 8 ) than the contact surface ( 8 c 1 ),
a width of the contact surface ( 8 c 1 ) is larger than a width of the two bevelled surfaces ( 8 c 2 ), and
wherein the contact surface ( 8 c 1 ) has a first convex shape with a first curvature with a first radius of curvature, and the two bevelled surfaces ( 8 c 2 ) have a second convex shape with a second curvature with a second radius of curvature, the second radius of curvature being smaller than the first radius of curvature, the two bevelled surfaces ( 8 c 2 ) having a more curved shape than the contact surface ( 8 c 1 ).

2. The support arrangement according to claim 1 , further comprising a transition area between the contact surface ( 8 c 1 ) and each of the two bevelled surfaces ( 8 c 2 ), wherein an angle in each transition area between the contact surface ( 8 c 1 ) and each of the two bevelled surfaces ( 8 c 2 ) is at least 135degrees.

3. The support arrangement according to claim 1 , wherein the contact surface ( 8 c 1 ) is located at a longest distance (d max ) from the rotation axis ( 8 g ) of the roller ( 8 ) in a midway position between the two bevelled surfaces ( 8 c 2 ).

4. The support arrangement according to claim 1 , further comprising flange portions ( 8 a , 8 b ), each flange portion having a radial outer surface located at a longer distance from the rotation axis ( 8 g ) than the peripheral surface ( 8 c ).

5. The support arrangement according to claim 4 , wherein each of the two bevelled surfaces ( 8 c 2 ) of the roller ( 8 ) is connected to the flange portions ( 8 a , 8 b ) via a curved connection portion ( 8 c 4 ).

6. The support arrangement according to claim 1 , further comprising a center hole ( 8 f ) defining the rotation axis ( 8 g ) of the roller ( 8 ).

7. The support arrangement according to claim 6 , the center hole ( 8 f ) is configured to receive a shaft ( 10 , 13 ) connecting the roller ( 8 ) to two support elements ( 9 a , 9 b , 12 a ) arranged on opposite sides of the roller ( 8 ).

8. The support arrangement according to claim 1 , wherein the roller ( 8 ) is a material body in one piece.

9. The support arrangement according to claim 8 , wherein the roller ( 8 ) is comprised of a nylon material.

10. The support arrangement according to claim 1 , further comprising:
a center hole ( 8 f ) defining the rotation axis ( 8 g ) of the roller ( 8 );
a transition area between the contact surface ( 8 c 1 ) and each of the two bevelled surfaces ( 8 c 2 ); and
two flange portions ( 8 a , 8 b ), each flange portion having a radial outer surface located at a longer distance from the rotation axis ( 8 g ) than the peripheral surface ( 8 c ),
wherein an angle in each transition area between the contact surface ( 8 c 1 ) and each of the two bevelled surfaces ( 8 c 2 ) is at least 135 degrees,
wherein the contact surface ( 8 c 1 ) is located at a longest distance (d max ) from the rotation axis ( 8 g ) of the roller ( 8 ) in a midway position between the two bevelled surfaces ( 8 c 2 ),
wherein the contact surface ( 8 c 1 ) has a convex shape,
wherein the two bevelled surfaces ( 8 c 2 ) have a convex shape,
wherein the two bevelled surfaces ( 8 c 2 ) have a smaller radius of curvature than a radius of curvature of the convex contact surface ( 8 c 1 ),
wherein each of the two bevelled surfaces ( 8 c 2 ) of the roller ( 8 ) is connected to the flange portions ( 8 a , 8 b ) via a curved connection portion ( 8 c 4 ), and
the center hole ( 8 f ) is configured to receive a shaft ( 10 , 13 ) connecting the roller ( 8 ) to two support elements ( 9 a , 9 b , 12 a ) arranged on opposite sides of the roller ( 8 ).

11. The support arrangement according to claim 1 , further comprising:
a center hole ( 8 f ) defining the rotation axis ( 8 g ) of the roller ( 8 );
a transition area between the contact surface ( 8 c 1 ) and each of the two bevelled surfaces ( 8 c 2 ); and
two flange portions ( 8 a , 8 b ), each flange portion having a radial outer surface located at a longer distance from the rotation axis ( 8 g ) than the peripheral surface ( 8 c ),
a transition area between the contact surface ( 8 c 1 ) and each of the two bevelled surfaces ( 8 c 2 ),
wherein an angle in each transition area between the contact surface ( 8 c 1 ) and each of the two bevelled surfaces ( 8 c 2 ) is at least 135 degrees,
wherein the contact surface ( 8 c 1 ) is located at a longest distance (d max ) from the rotation axis ( 8 g ) of the roller ( 8 ) in a midway position between the two bevelled surfaces ( 8 c 2 ),
wherein all of the contact surface ( 8 c 1 ) of the peripheral surface ( 8 c ) is located at a same distance from the rotation axis ( 8 g ) of the roller ( 8 ),
wherein each of the two bevelled surfaces ( 8 c 2 ) is located at a distance (d) from the rotation axis ( 8 g ) which increases linearly from an outer end to an inner end located adjacent to the contact surface ( 8 c 1 ),
wherein each of the two bevelled surfaces ( 8 c 2 ) of the roller ( 8 ) is connected to the flange portions ( 8 a , 8 b ) via a curved connection portion ( 8 c 4 ), and
the center hole ( 8 f ) is configured to receive a shaft ( 10 , 13 ) connecting the roller ( 8 ) to two support elements ( 9 a , 9 b , 12 a ) arranged on opposite sides of the roller ( 8 ).

12. A support arrangement comprising:
a rotary milking platform ( 1 ),
a first rail member ( 4 ) fixedly connected to the rotary milking platform ( 1 ),
a second rail member ( 5 ) stationarily arranged in a position below the milking platform ( 1 ), and
a plurality of rollers arranged in a vertical space between the first rail member ( 4 ) and the second rail member ( 5 ),
wherein said roller ( 8 ) is one of said plurality of rollers, and comprises a peripheral surface ( 8 c ) comprising a contact surface ( 8 c 1 ) to be in contact with a contact portion ( 4 d ) of the first rail member ( 4 ) and a contact portion ( 5 d ) of the second rail member ( 5 ),
wherein the peripheral surface ( 8 c ) of the roller ( 8 ) comprises two bevelled surfaces ( 8 c 2 ) arranged at opposite sides of the contact surface ( 8 c ), the two bevelled surfaces ( 8 c 2 ) being located at a smaller distance (d) from a rotary axis ( 8 g ) of the roller ( 8 ) than the contact surface ( 8 c 1 ),
wherein a width of the contact surface ( 8 c 1 ) is larger than a width of the two bevelled surfaces ( 8 c 2 ), and
wherein all of the contact surface (

Assignees

• Delaval Holding Ab

Inventors

• Hellekant Otto

Classifications

• F16C33/526

  extending through the rollers and joining two lateral cage parts · CPC title

• F16C33/34

  Rollers; Needles · CPC title

• F16C23/088

  by means of crowning · CPC title

• F16C19/507

  with rolling elements journaled in one of the moving parts, e.g. stationary rollers to support a rotating part · CPC title

• F16C19/30

  for axial load mainly · CPC title