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Irregular nut matched with foundation bolt for reducer and reducer fixing method

A technology of anchor bolts and special-shaped nuts, which is applied to nuts, threaded fasteners, engine frames, etc., can solve problems such as infirmity, hidden dangers of equipment personal safety, and loose anchor steel plates of reducers, so as to ensure equipment safety and The effect of personal safety, reasonable structure design and simple method

Inactive Publication Date: 2013-01-23
HEILONGJIANG JIANLONG IRON & STEEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that after the anchor bolts of the seamless pipe large cooling bed reducer in the existing steel rolling mill are broken, the nuts cannot be screwed on the anchor bolts, the anchor plate of the reducer is loose and not firm, and the reducer is unstable. , there are serious equipment and personal safety hazards, which affect normal production, and then provide a special-shaped nut for the anchor bolts used in the reducer and a fixing method for the reducer

Method used

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  • Irregular nut matched with foundation bolt for reducer and reducer fixing method
  • Irregular nut matched with foundation bolt for reducer and reducer fixing method

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specific Embodiment approach 1

[0012] Specific implementation mode one: combine figure 1 Describe this embodiment, the special-shaped nut 1 that a kind of reducer of this embodiment is used for supporting anchor bolt is made up of upper body 1-1 and lower body 1-3 that are made integrally, and upper body 1-1 is a prism, The lower body 1-3 is a cylinder, the upper body 1-1 and the lower body 1-3 are coaxially arranged with a stepped surface between them, and the outer diameter of the lower body 1-3 is smaller than the circumscribed circle of the upper body 1-1 The diameter of the special-shaped nut 1 is processed with an internal thread through hole 1-2 in the axial direction.

[0013] The anchor bolts in this embodiment can be M40, and the upper body in this embodiment can be a regular prism.

specific Embodiment approach 2

[0014] Specific implementation mode two: combination figure 1 To describe this embodiment, the upper body 1-1 described in this embodiment is a quadrangular prism or a hexagonal prism. Such an arrangement can meet the needs of screwing the upper body, and is easy to operate and use. The upper body in this embodiment can be a regular square prism or a regular hexagonal prism. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0015] Specific implementation mode three: combination figure 1 and figure 2 To illustrate this embodiment, the specific steps of a method for fixing a reducer after the anchor bolts for a reducer of this embodiment are broken are as follows:

[0016] Step 1, expanding the diameter of the through hole 3-1 on the anchor steel plate 3 corresponding to the broken anchor bolt 2;

[0017] Step 2, make special-shaped nut 1 according to the diameter of the broken anchor bolt 2 and the diameter of the through hole 3-2 on the expanded anchor steel plate 3, the outer surface of the lower body 1-3 of the special-shaped nut 1 and the anchor steel plate The inner surface of the through hole 3-2 on the 3 is clearance fit;

[0018] Step 3: Screw the lower body 1-3 and the upper body 1-1 of the prepared special-shaped nut 1 on the anchor bolt 2 in turn, press the upper body 1-1 on the anchor steel plate 3, and press the anchor steel plate 3 Tighten, and the reducer is fixed.

[0019] The...

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Abstract

The invention discloses an irregular nut matched with a foundation bolt for a reducer and a reducer fixing method, and relates to the irregular nut matched with the foundation bolt and the reducer fixing method. The problems that a nut cannot be screwed on a foundation bolt after the foundation bolt of a seamless tube large cooling bed reducer in the conventional rolling mill is broken, a foundation steel plate of the reducer is loosened and is not firm, the reducer unstably works, severe potential safety hazard of equipment which threatens personnel exists and the normal production is influenced are solved. The irregular nut consists of an upper part and a lower part which are integrated, wherein the upper part and the lower part are coaxial with each other, and a step surface is formed between the upper part and the lower part; the outer diameter of the lower part is smaller than the diameter of a circumcircle of the upper part; and an internal thread through hole is machined along the axial direction in the irregular nut. The reducer fixing method mainly comprises the following steps of: 1, reaming; 2, manufacturing the irregular nut; and 3, screwing the irregular nut on the foundation bolt. The method is used for fixing the reducer after the foundation bolt of the reducer is broken.

Description

technical field [0001] The present invention relates to a special-shaped nut for supporting anchor bolts and a fixing method for a speed reducer, in particular to a special-shaped nut and the speed reducer for supporting a broken anchor bolt for a seamless pipe large cooling bed reducer in a steel rolling mill fixed method. Background technique [0002] After the anchor bolts fixed in the concrete foundation on the seamless pipe large cooling bed reducer in the rolling mill break, the fractured part is usually level with the reducer's anchor plate or slightly lower than the upper plane of the steel plate, and the nuts cannot be screwed on the anchor bolts If the nut is not screwed on, the anchor plate of the reducer will be loose and not firm, and the reducer will not work stably. Once the other anchor bolts are broken due to the increased force (vibration force), there will be serious equipment and personal safety. Hidden dangers will paralyze the production line and affec...

Claims

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Application Information

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IPC IPC(8): F16B37/00F16M7/00
Inventor 付修岭
Owner HEILONGJIANG JIANLONG IRON & STEEL
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