Roll gap measurement
AssigneeLoewy Robertson Engineering Company Limited
InventorRobert James Harlow
Life of this patent
Estimating the term…
Abstract
In order to indicate the gap between the work rolls of a rolling mill, a pair of shoe structures are urged into engagement with the necks of the respective work rolls, so as to engage that part of the upper roll neck which is vertically beneath the roll axis and that part of the lower roll neck which is vertically above the roll axis and to be movable with the rolls in the vertical direction and an electrical transducer is carried by one of the shoe structures at a position away from the roll axis and a movable part of the transducer engages the other shoe structure so that the electrical output of the transducer varies in response to a variation in the gap between the rolls.
Claims7
The improved apparatus for indicating the extent of the gap between the work rolls of a rolling mill having a pair of work rolls arranged with their axes of rotation in a vertical plane, which apparatus comprises:
- support means secured to the mill adjacent one end of the rolls and on one side of the vertical plane containing the roll axes,
- a vertical post positioned on said side of the vertical plane,
- a pair of structures mounted on the post and each having an arcuate shoe which projects into the space between the rolls at said end thereof,
- means removably mounted on the support means which applies a horizontal biassing force to said post and thereby urges one of the shoes into slidable engagement with a part of the upper work roll which is immediately below the axis of said upper work roll, and the other shoe into slidable engagement with a part of the lower work roll which is immediately above the axis of said lower work roll,
- an electrical transducer having a first elongate part movable in the direction of its length with respect to a second part of the transducer, said second part being carried by one of said structures on said one side of the vertical plane and in a position away from the rolls, and the first part being positioned to engage the other structure and move in a vertical direction in response to a variation in the gap between the work rolls, thereby varying the electrical output of said transducer.
Dependencies are inferred from the claim text.