Portable safety belt suspension device for overhauling ball mill

Abstract

The utility model relates to a portable safety belt suspension device for overhauling a ball mill, and belongs to the technical field of ball mill equipment in the metallurgical industry. According to the technical scheme, the device comprises a nut (1), a stand column (2), a bearing (3), a shaft (4), a bearing box (6), an eyebolt (7) and a safety belt (8), one end of the stand column (2) and the nut (1) are fixed together, the other end of the stand column (2) and the shaft (4) are fixed together, the bearing box (6) is rotationally connected to the shaft (4) through the bearing (3), the eyebolt (7) is in threaded connection to the bearing box (6), and the safety belt (8) is installed on the eyebolt (7); and the bearing box (6) is provided with a plurality of threaded interfaces matched with the eyebolts (7). The beneficial effects of the utility model are that: it is convenient for operating personnel to carry out installation, operation and disassembly at any time, ensures the safety of the operating personnel, and greatly reduces the influence of the arrangement of additional safety devices, platforms and the like on the maintenance time and progress.

Description

TECHNICAL FIELD

[0001] The utility model relates to a portable safety belt suspension device for ball mill maintenance belongs to metallurgical industry ball mill equipment technical field. BACKGROUND

[0002] Ball mill is the key equipment after material is broken, and carries out the key equipment of powder. It is widely used in cement, silicate products, new building materials, refractory materials, chemical fertilizer, black and non-ferrous metal ore dressing and glass ceramic production industry, and carries out dry or wet type powder grinding to various ores and other grindability material. Ball mill is suitable for grinding various ores and other materials, and is widely used in ore dressing, building materials and chemical industry. According to the different discharge mode, it can be divided into grid type and overflow type.

[0003] The structure of ball mill includes feeding end, discharging end, cylinder, manhole, the strip or block lining plate is installed inside the cylinder, then the steel ball is filled, the steel ball is thrown through the rotary motion of ball mill, and the material is impacted and ground. The lining plate, bolt, manhole cover and other components of ball mill are wearing parts, which need to be regularly overhauled and replaced.

[0004] The problems existing in ball mill maintenance: taking MQG2736 ball mill as an example, when the maintenance operation is carried out, the maintenance personnel need to stand above the cylinder and carry out the operation, the operation height is 2.5 meters, it is high-altitude operation, the operation personnel need to hang the safety belt, but the cylinder of ball mill is a long-term running equipment, and the space between the cylinder and the front and rear platforms is ≯ 500mm, the space is extremely limited, a fixed safety belt suspension device cannot be set, and there is no appropriate position for hanging the safety belt, usually, the hanging ring or the platform, the installation guardrail and other ways for temporarily suspending the safety belt are needed to solve, which is inconvenient to install, affects the maintenance time and progress. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a portable safety belt suspension device for ball mill maintenance, which is convenient for the operation personnel to install, operate and disassemble at any time, ensures the safety of the operation personnel, greatly reduces the influence of setting additional safety devices, platforms and the like on the maintenance time and progress, and solves the problems in the background art.

[0006] The technical scheme of the utility model is:

[0007] A portable safety belt suspension device for ball mill maintenance, which comprises a nut, a stand, a bearing, a shaft, a bearing box, a lifting ring bolt and a safety belt, one end of the stand is fixed with the nut, the other end of the stand is fixed with the shaft, the bearing box is rotatably connected to the shaft through the bearing, the lifting ring bolt is threadedly connected to the bearing box, and the safety belt is installed on the lifting ring bolt.

[0008] The bearing is a deep groove ball bearing, the inner sleeve of the deep groove ball bearing is sleeved on the shaft, and the outer sleeve of the deep groove ball bearing is installed in the bearing box.

[0009] The bearing box is provided with an outer snap spring matched with the top of the deep groove ball bearing.

[0010] The bearing box is provided with a plurality of threaded interfaces matched with the lifting ring bolts.

[0011] The safety belt is installed on the lifting ring of the lifting ring bolt.

[0012] The nut is matched with the ball mill cylinder liner plate bolt.

[0013] The beneficial effects of the utility model are: the problem that the personnel above the cylinder have no place to hang the safety belt during the maintenance process of the ball mill is solved, the structure is simple and light, the personnel can install, work and disassemble at any time, the safety of the personnel is ensured, the influence of setting additional safety devices, platforms and the like on the maintenance time and progress is greatly reduced, and the maintenance efficiency is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the utility model;

[0015] In the figure: nut 1, stand column 2, bearing 3, shaft 4, outer snap spring 5, bearing box 6, lifting ring bolt 7 and safety belt 8. DETAILED DESCRIPTION

[0016] The utility model will be further described through examples in combination with the drawings.

[0017] Referring to the drawings Figure 1 A portable safety belt hanging device for ball mill maintenance, containing nut 1, stand column 2, bearing 3, shaft 4, bearing box 6, lifting ring bolt 7 and safety belt 8, one end of stand column 2 is fixed together with nut 1, the other end of stand column 2 is fixed together with shaft 4, bearing box 6 is rotatably connected on shaft 4 through bearing 3, lifting ring bolt 7 is threadedly connected on bearing box 6, and safety belt 8 is installed on lifting ring bolt 7.

[0018] In the embodiment, referring to the drawings Figure 1 A portable safety belt hanging device for ball mill maintenance, containing nut 1, stand column 2, bearing 3, shaft 4, outer snap spring 5, bearing box 6, lifting ring bolt 7 and safety belt 8, wherein:

[0019] Nut 1 is a high-strength hexagonal nut, the specification is M36, the grade is 8.8, and the hexagonal size is 46mm;

[0020] Stand column 2 is a Φ50 thick-walled steel pipe;

[0021] The bearing 3 is a deep groove ball bearing, model 310, inner diameter 50mm, outer diameter 110mm, thickness 27mm;

[0022] The shaft 4 is Φ50*50mm in size;

[0023] The outer snap spring 5 is DN46 in size;

[0024] The bearing box 6 is Φ110mm in inner diameter, and the outer wall is provided with four M16 inner thread interfaces by welding nuts or other ways;

[0025] The lifting ring bolt 7 is M16*27mm in size, and the inner diameter is 35mm.

[0026] As shown in the figure, the high-strength hexagonal nut 1 is welded to the column 2, the column 2 is welded to the shaft 4, the inner sleeve of the deep groove ball bearing 3 is installed on the shaft 4 by heating, the outer sleeve of the deep groove ball bearing 3 is installed in the bearing box 6 by knocking, the outer snap spring 5 is installed on the top of the deep groove ball bearing 3 for fixing the deep groove ball bearing 3, the bearing box 6 is provided with inner threads connected to the lifting ring bolt 7, and the safety belt 8 is installed on the lifting ring bolt 7.

[0027] The device is connected to the ball mill cylinder liner plate bolt by the high-strength hexagonal nut 1, and the workers can work safely and reliably after wearing the safety belt and installing the safety belt 8 on the lifting ring bolt 7. According to the number of workers, the lifting ring bolt 7 can be installed on the outer side of the bearing box 6 at will, and generally 1-4 people can use it, and the safety belt 8 can rotate with the bearing box 6 and the shaft 4, avoiding the entanglement of the safety rope.

Claims

1. A portable safety harness suspension device for use in ball mill maintenance, characterised in that: The nut (1), the column (2), the bearing (3), the shaft (4), the bearing box (6), the lifting ring bolt (7) and the safety belt (8) are included, one end of the column (2) is fixed with the nut (1), the other end of the column (2) is fixed with the shaft (4), the bearing box (6) is rotatably connected with the shaft (4) through the bearing (3), the lifting ring bolt (7) is threadedly connected with the bearing box (6), and the safety belt (8) is installed on the lifting ring bolt (7).

2. A portable safety harness suspension device for use in the maintenance of a ball mill as claimed in claim 1, characterised in that: The bearing (3) is a deep groove ball bearing, the inner sleeve of the deep groove ball bearing is sleeved on the shaft (4), and the outer sleeve of the deep groove ball bearing is installed in the bearing box (6).

3. A portable safety harness suspension device for use in the maintenance of a ball mill as claimed in claim 2, characterised in that: An outer snap spring (5) matched with the top of the deep groove ball bearing is arranged on the bearing box (6).

4. A portable safety harness suspension device for use in the maintenance of a ball mill as claimed in claim 1, characterised in that: A plurality of threaded interfaces matched with the lifting ring bolt (7) are arranged on the bearing box (6).

5. A portable safety harness suspension device for use in the maintenance of a ball mill as claimed in claim 1 or 4 wherein: The safety belt (8) is installed on the lifting ring of the lifting ring bolt (7).

6. A portable safety harness suspension device for use in the maintenance of a ball mill as claimed in claim 1, characterised in that: The nut (1) is matched with the ball mill cylinder liner plate bolt.

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