Method for simulating fastening state of rolling mill frame
A rolling mill stand and fastening technology, which is applied in the direction of metal rolling stand, metal rolling mill stand, metal rolling, etc., can solve the problem of inability to achieve installation accuracy at one time, time-consuming and laborious, and inability to fasten anchor bolts, etc. question
Active Publication Date: 2015-09-23
MCC TIANGONG GROUP
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Problems solved by technology
[0002] The installation and adjustment of the bottom plate of the rolling mill is the adjustment in the state of no rolling mill stand. Only the anchor bolts of the bottom plate can be tightened, and the joint anchor bolts of the bottom plate and the frame cannot be fastened. Therefore, in this state The bottom plate of the rolling mill is adjusted downwards, and the final installation accuracy cannot be achieved at one time
After the rolling mill stand is installed on the bottom plate, the elevation and level of the bottom plate are likely to change, which requires readjustment of the bottom plate. At this time, the rolling mill stand is already in place, and it is very difficult to adjust the bottom plate. time consuming and laborious
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[0021] Such as figure 1 , 4 , Shown in 5: a method for simulating the fastening state of a rolling mill stand, comprising the following steps:
[0022] (1) if figure 2 , 3 The simulated fastening device shown is made: the device includes upper and lower support surfaces 9, support sleeves 10 and support ribs 11, the support sleeve is installed in the center between the upper and lower support surfaces, and the support ribs are evenly arranged on the support sleeve around the tube;
[0023] The upper and lower support surfaces are used to support the bottom plate to be fastened and the nuts for fastening the anchor bolts connected to the frame, and are respectively composed of steel plates with a thickness of not less than 20mm. The area size of the upper and lower support surfaces is equal to the contact area with the bottom plate when the rolling mill stand is in place, which not only satisfies the placement size of the fastening tool (hydraulic tensioner), but also ensu...
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Abstract
The invention discloses a method for simulating a fastening state of a rolling mill frame. The method comprises the following steps: (1) a fastening simulation device is manufactured, and comprises upper and lower support surfaces, a support casing and a support rib plate; (2) the support casing of the fastening simulation device coats a baseplate and frame connection fastening foundation bolt; and a nut is screwed into the upper support surface of the fastening simulation device; (3) various precision indexes of the elevation and the levelness of a rolling mill baseplate are measured; and the rolling mill baseplate is adjusted through a foundation sizing block and a baseplate fastening foundation bolt; (4) all foundation bolts are fastened to appointed moments; and (5) the fastening simulation device is disassembled; and the rolling mill frame is installed. The method pre-tightens baseplate and frame connection fastening foundation bolt beforehand to simulate a stress state of the baseplate after the rolling mill frame is in place; and in the state, the milling roll baseplate is adjusted to guarantee the elevation and the levelness of the rolling mill baseplate to be not changed any more after the rolling mill frame is in place, so that the final adjusting precision is achieved, and both time and labor are saved.
Description
Technical field: [0001] The invention belongs to a method for installing mechanical equipment, and in particular relates to a method for simulating the fastening state of a rolling mill frame, which is suitable for fastening anchor bolts when installing and adjusting bottom plates of single rolling mills and continuous rolling mills. Background technique: [0002] The installation and adjustment of the bottom plate of the rolling mill is the adjustment in the state of no rolling mill stand. Only the anchor bolts of the bottom plate can be tightened, and the joint anchor bolts of the bottom plate and the frame cannot be fastened. Therefore, in this state Adjusting the bottom plate of the rolling mill downwards cannot achieve the final installation accuracy at one time. After the rolling mill stand is installed on the bottom plate, the elevation and level of the bottom plate are likely to change, which requires readjustment of the bottom plate. At this time, the rolling mill s...
Claims
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IPC IPC(8): B21B31/06
Inventor 杜艳军
Owner MCC TIANGONG GROUP