Coupling construction and method for joining and locking the rolls of extended-nip press
An extended, press-drier technology, used in presses, presses using rotating pressure components, papermaking, etc., can solve problems such as large room for movement, and achieve the effect of reducing the space for movement
Inactive Publication Date: 2004-08-25
VAAHTO
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Problems solved by technology
To the extent that the patent's construction uses separate pivot points to allow for rotation of the link, this construction requires greater leeway when disengaging the assembly
Method used
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Embodiment Construction
[0024] figure 1 An exemplary embodiment of the construction of an expanding nip dryer of a paper machine is schematically shown, in which a web W enters a nip N between a lower shoe roll 1 and an upper backing roll 2 . The backing roll may be a heated roll or a non-heated roll. The shoe roller 1 includes a loading mechanism 3 and a surrounding leather sheath 4 . The loading mechanism 3 includes at least one loading shoe and an actuator, which is used to press the surrounding holster onto the backing roller through the loading shoe, thereby forming the above-mentioned nip N and making the web entering the nip W dehydrated. Here, the web W is a paper roll or a cardboard roll. The spread nip dryer also includes other components and elements, but they have been omitted from the figure for clarity. These accessories are, for example, lifting mechanisms for raising the upper roll, mechanisms for supplying coolant and lubricant to the sliding surfaces of the loading shoe, and the...
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A yoke assembly is disclosed for connecting and securing to each other rolls (1, 2) forming a nip in an extended nip press, whereby at least one of the rolls (1) of the extended-nip press includes loading means (3), advantageously at least one loading shoe for loading the endless-loop blanket (4) of one roll (1) against the other one (2) of the extended-nip press rolls so as to establish a nip (N), wherein the lower roll (1) and the upper roll (2) are dismountably connected to each other and the yoke assembly connecting the rolls (1, 2) of the extended-nip press to each other includes rotatable connecting members (7, 8) by means of which the extended-nip press rolls (1, 2) are detachably connected to each other by their bearing blocks (5, 6). The invention is characterized in that the connecting member (7, 8) comprises a first clamping surface (24) adapted slidably rotatable on the respective mating surface (20, 21) of a first roll bearing block (5) so that the first clamping surface (24) and the respective mating surface (20, 21) of the first roll bearing block (5) to be connected therewith form a pivotal joint (10, 11) about which the connecting member (7, 8) can be rotatably disengaged from the mating surface (22, 23) of a second roll bearing block (6) and, respectively, engaged with the latter mating surface (22, 23).
Description
technical field [0001] The present invention relates to a yoke assembly and method for connecting and locking the rolls of an expanding nip dryer as described in the preambles of the subsequent independent claims. Background technique [0002] Typically, the nip area or nip in an expanding nip dryer is formed by two rolls aligned completely parallel to each other, in this case the shoe roll and the back roll. The shoe roll consists of a surrounding jacket made of a liquid-tight flexible material, a rigid backing roller shaft fixedly mounted axially through the surrounding jacket, at least one roller supported by the backing roller and having a concave top. The upper surface of the loading shoe and a loading mechanism that presses the concave top surface of the loading shoe against the flexible surrounding holster so that the surrounding holster forms the dryer nip area with the backing roll. The shoe roller and the back roller are rotatably installed in the support seat wit...
Claims
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IPC IPC(8): B30B3/04D21F3/02
CPCB30B3/04D21F3/0218
Inventor E·阿霍
Owner VAAHTO