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US 2010/0140853 A1Published application
Lance holder with multiple-tolerance clamping head
OwnerHorst Marmann, Reinhardt Bayerinventors
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OwnerHorst Marmann, Reinhardt Bayerinventors
Estimating the term…
A lance holder 1 characterized by a high level of operating safety is equipped with a holder or tube fixing system which reliably prevents even a bent lance tube 2 from turning in the lance holder 1. The clamping head 3 has a fixing part 4 and a clamping part 5 which ensure punctiform fixing by means of suitably-displaceable pressure elements 16 in the form of balls 20. Three such balls 20, 20′ are distributed around the circumference and provide for secure fixing and a wide tolerance range in respect of the dimensions of the lance tubes 2. Said wide tolerance range is also ensured by the possibility of using sealing sleeves 6 with a large internal diameter, which are pressed securely and directly against the wall 18 of the lance tube 2 without compression by insertion of a wedge 22.
A lance holder for lance tubes (2) used in the iron and steel industry with a clamping head (3), which has a fixing part (4) and a clamping part (5) and to which a sealing sleeve (6) interlocking the inserted lance tube (2) and thus sealing it is allocated, wherein the fixing part (4) comprising the inserted lance tube (2) is provided with a leading bevel (14), in which pressure elements (16) distributed around the circumference are guided which can be displaced at right angles to the longitudinal axis (15) of the lance tube (2) and by means of which fixing part a clamping part having a pressure bevel corresponding to the leading bevel is arranged and formed in an influenceable manner.
Dependencies are inferred from the claim text.