Safety auxiliary device for connection of large-diameter core mold

Abstract

The utility model discloses a large-diameter core mold connection safety auxiliary device which comprises a high-strength pressing block, an anti-sliding block and a high-strength double-end bolt. One end of the anti-skid block is fixed in the anti-skid hole of the main shaft flange through a bolt, and the other end of the anti-skid block is in interference fit with the anti-skid hole of the core mold; the high-strength double-end bolt is connected into a bolt connecting hole, corresponding to the core mold, of the main shaft flange, so that the main shaft flange and the core mold are fixed; a fixing plate at the lower end of the high-strength pressing block is fixed to the butt joint face of the core mold through a screw, and a pressing plate at the upper end of the high-strength pressing block presses the rear side face of the connecting end of the main shaft flange, so that the main shaft flange and the core mold are axially pressed. According to the safety auxiliary device for connection of the large-caliber core mold, the large-caliber core mold is fixed to the flange through the pressing block and the anti-sliding block, a series of safety production problems caused by the fact that the caliber of the core mold is large, heavy and long are solved, and the safety auxiliary device is practical, ingenious and feasible and has important practical value.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of large-diameter core mould connection safety auxiliary device, belong to safety production field. BACKGROUND

[0002] At present, large-diameter core mould is generally connected with flange spindle by using stud bolt, and tail top device is used to assist core mould;The connection structure has the following shortcomings:

[0003] 1, in the large-diameter strong spinning production process, the core mould is relatively slid between core mould and flange due to large radial shear force.

[0004] 2, the core mould is heavy and long, and must be fixed by crane before production preparation and loading and unloading, which is not conducive to production.

[0005] 3, in production, the core mould is subjected to strong circumferential shear force due to large torque generated by high-speed rotation and extrusion by spinning wheel, and the connecting bolt may be broken. INVENTION CONTENTS

[0006] The utility model aims at solving the problems of core mould relative sliding and connecting bolt breakage in the strong spinning production of large-diameter core mould, and designs a new type of large-diameter core mould connection safety auxiliary device.

[0007] The utility model aims at solving the problems of core mould relative sliding and connecting bolt breakage in the strong spinning production of large-diameter core mould, and designs a new type of large-diameter core mould connection safety auxiliary device.

[0008] The utility model discloses a kind of large-diameter core mould connection safety auxiliary device, including high-strength briquetting, anti-skid block, high-strength stud bolt;

[0009] The butt joint surface of spindle flange and core mould is provided with corresponding anti-skid hole and bolt connection hole,

[0010] The high-strength briquetting is integrally Z-shaped plate consisting of fixed plate at lower end, pressing plate at upper end and connecting plate connected between the fixed plate and the pressing plate;

[0011] The anti-skid block is columnar structure with outer diameter matching the hole diameter of anti-skid hole, and the anti-skid block is axially provided with screw connection hole;

[0012] One end of the anti-skid block is fixed in the anti-skid hole of spindle flange by bolt, and the other end of the anti-skid block is interference-fitted with the anti-skid hole of core mould;The high-strength stud bolt is connected in the corresponding bolt connection hole of spindle flange and core mould, so that the spindle flange and the core mould are fixed;The fixed plate at lower end of the high-strength briquetting is fixed on the butt joint surface of core mould by screw, and the pressing plate at upper end of the high-strength briquetting presses the rear side of connecting end of spindle flange, so that the spindle flange and the core mould are axially pressed.

[0013] Beneficial effects

[0014] The utility model discloses a large aperture core mould connection safety auxiliary device, through briquetting and antiskid block, the large aperture core mould is fixed to the flange, has solved the series of safety production problems that core mould aperture is big, heavy, long has brought, the device is practical, ingenious, feasible, has important practical value. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structural diagram of the utility model large aperture core mould connection safety auxiliary device;

[0016] Figure 2 It is the part drawing of high strength briquetting in the utility model large aperture core mould connection safety auxiliary device;

[0017] Figure 3 It is the part drawing of work antiskid block of the utility model large aperture core mould connection safety auxiliary device;

[0018] Among them, 1-high strength briquetting, 2-antiskid block, 3-high strength stud bolt, 4-main shaft flange;5-core mould. DETAILED DESCRIPTION

[0019] The content of the utility model will be further described below in combination with the drawings and examples.

[0020] Examples

[0021] The utility model discloses a kind of large aperture core mould connection safety auxiliary device, as shown in Figure 1 It is shown that including high strength briquetting 1, antiskid block 2, high strength stud bolt 3;

[0022] Main shaft flange 5 and the butt joint surface of core mould 4 are provided with corresponding antiskid hole and bolt connection hole,

[0023] As shown in Figure 2 It is shown that the high strength briquetting 1 is by the fixed plate of being located at lower end, the pressing plate of being located at upper end and the connecting plate of being connected between the fixed plate and the pressing plate constitute integral Z-shaped plate;

[0024] As shown in Figure 3 The antiskid block 2 is the cylindrical structure of outer diameter and the antiskid hole aperture matching, and the antiskid block 2 is axially provided with screw connection hole;

[0025] One end of the anti-skid block 2 is fixed in the anti-skid hole of the main shaft flange 5 by bolts, and the other end of the anti-skid block 2 is interference fit with the anti-skid hole of the core mold 4; the high-strength stud bolt 3 is connected in the corresponding bolt connection hole of the main shaft flange 5 and the core mold 4, so as to fix the main shaft flange 5 and the core mold 4; the fixed plate at the lower end of the high-strength pressing block 1 is fixed on the butt surface of the core mold 4 by screws, and the pressing plate at the upper end of the high-strength pressing block 1 presses the rear surface of the connecting end of the main shaft flange 5, so as to axially press the main shaft flange 5 and the core mold 4.

Claims

1. A large-bore core mold connection safety assist device characterized by comprising: High-strength pressing block, anti-skid block, high-strength double-end bolt; The butt joint surface of the main shaft flange and the core mold is provided with corresponding anti-skid holes and bolt connection holes, The high-strength pressing block is an integrated Z-shaped plate composed of a fixed plate at the lower end, a pressing plate at the upper end and a connecting plate connected between the fixed plate and the pressing plate; The anti-skid block is a columnar structure with an outer diameter matching the diameter of the anti-skid hole, and the anti-skid block is axially provided with a screw connection hole; One end of the anti-skid block is fixed in the anti-skid hole of the main shaft flange by a bolt, and the other end of the anti-skid block is in interference fit with the anti-skid hole of the core mold; the high-strength double-end bolt is connected in the corresponding bolt connection holes of the main shaft flange and the core mold to fix the main shaft flange and the core mold; the fixed plate at the lower end of the high-strength pressing block is fixed on the butt joint surface of the core mold by a screw, and the pressing plate at the upper end of the high-strength pressing block presses the rear side surface of the connecting end of the main shaft flange, so that the main shaft flange and the core mold are axially pressed tightly.

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