CN216071834U

CN216071834U - Carrier roller device for heavy-load long-stroke drag chain

Info

Publication number: CN216071834U
Application number: CN202122453840.1U
Authority: CN
Inventors: 邵峰
Original assignee: Beijing Shougang International Engineering Technology Co Ltd
Current assignee: Beijing Shougang International Engineering Technology Co Ltd
Priority date: 2021-10-12
Filing date: 2021-10-12
Publication date: 2022-03-18
Anticipated expiration: 2031-10-12

Abstract

A carrier roller device for a heavy-load long-stroke drag chain belongs to the technical field of mechanical engineering. The device comprises a first carrier roller assembly (1), a second carrier roller assembly (2) and a bracket (3); the first carrier roller assembly (1) is installed in a groove of a vertical plate on the left side of the support (3), and the second carrier roller assembly (2) is installed in a groove of a vertical plate on the right side of the support (3). The upper roller surfaces of the first carrier roller assembly (1) and the second carrier roller assembly (2) are positioned on the same horizontal line. The drag chain has the advantages that the drag chain is beneficial to stable and safe operation, and the medium pipeline is protected from being damaged; and, simple structure is reasonable, be convenient for maintain and change.

Description

Carrier roller device for heavy-load long-stroke drag chain

Technical Field

The utility model belongs to the technical field of mechanical engineering, and particularly relates to a carrier roller device for a heavy-load long-stroke drag chain, which is suitable for working conditions requiring the use of the heavy-load long-stroke drag chain in the industries of metallurgy, chemical engineering, machining and the like.

Background

The drag chain is widely applied to industries such as various processing machinery, metallurgical and chemical transportation machinery, port equipment, electronic equipment and the like, is mainly applied to reciprocating occasions, and can play a role in protecting and dragging built-in medium pipelines (such as cables, oil pipes, water pipes, air pipes and the like).

The appearance of the towline is similar to that of a tank chain, a plurality of unit chains are connected to form the towline, and the towline can freely rotate between the links. According to different working conditions, different chain plate heights, internal widths and bending radii of the drag chains are required to be selected, and the drag chains with large chain plate heights and large bending radii are required to be selected to improve the rigidity of the drag chains in heavy load and long stroke application occasions. However, when the chain plate of the drag chain is high and the reciprocating stroke is large, the weight of the drag chain is also large, so that the instability of the drag chain in the reciprocating process along with equipment is increased, and the drag chain is easy to shake, collapse or generate torsion accidents.

In order to enhance the running stability of the drag chain, a group of supporting mechanisms are required to be arranged at certain intervals in the reciprocating stroke of the drag chain, and the supporting mechanisms mainly comprise supporting rod type and cylindrical supporting roller type at present, can only be used for preventing the drag chain from collapsing waist and cannot be used for correcting the position of the drag chain.

The development of a drag chain supporting mechanism which has a simple structure and can slightly correct the drag chain position is needed.

Disclosure of Invention

The utility model aims to provide a carrier roller device of a heavy-duty long-stroke drag chain, which overcomes the defect that the traditional drag chain supporting mechanism cannot correct the position of the drag chain, and is beneficial to the centering and stable operation of the drag chain when the drag chain is lifted to operate through a special structural design.

The utility model comprises a first carrier roller assembly 1, a second carrier roller assembly 2 and a bracket 3; the first carrier roller assembly 1 is installed in a groove of a vertical plate on the left side of the support 3, and the second carrier roller assembly 2 is installed in a groove of a vertical plate on the right side of the support 3.

The first idler assembly 1 and the second idler assembly 2 are identical.

After the installation is finished, the upper roller surfaces of the first carrier roller assembly 1 and the second carrier roller assembly 2 are positioned on the same horizontal line;

the carrier roller assembly I1 comprises a roller 4, a circlip for hole 5, a bearing I6, a shaft 7, a distance ring 8, a circlip for shaft 9 and a bearing II 10; the first bearing 6, the distance ring 8 and the second bearing 10 are assembled on the shaft 7, and the distance ring 8 is positioned between the first bearing 6 and the second bearing 10; the roller 4 is assembled on a first bearing 6 and a second bearing 10; the circlip for hole 5 is positioned at the left side of the bearing I6 and is assembled in the groove of the roller 4; and a shaft elastic retainer ring 9 is positioned at the right side of the second bearing 10 and is assembled in a groove of the shaft 7.

The roller 4 is a conical roller, an included angle beta is formed between the roller surface and the axis, and a flange is arranged at the large end of the roller surface in diameter.

The two ends of the shaft 7 are provided with processing planes, and the included angle between the processing planes and the axis is equal to the included angle beta between the roll surfaces of the rollers 4.

According to the utility model, the carrier roller is designed into the conical roller, the roller surfaces of the two rollers are positioned on the same horizontal line, the drag chain running on the carrier roller can be slightly corrected, the drag chain is prevented from collapsing, the stable and safe running of the drag chain is facilitated by the supporting effect of the drag chain, and thus the medium pipeline is protected from being damaged.

The utility model has the advantages that: the equipment has simple and reasonable structure and is convenient to maintain and replace.

Drawings

Figure 1 is an isometric view of the present invention. The carrier roller assembly comprises a carrier roller assembly I1, a carrier roller assembly II 2 and a bracket 3.

Fig. 2 is a vertical sectional view of the present invention. The carrier roller assembly comprises a carrier roller assembly I1, a carrier roller assembly II 2 and a bracket 3.

Fig. 3 is a cross-sectional view of an idler assembly 1 of the present invention. The device comprises a roller 4, a circlip for hole 5, a first bearing 6, a shaft 7, a distance ring 8, a circlip for shaft 9 and a second bearing 10.

Fig. 4 is a structural view of the shaft 7 of the present invention.

Detailed Description

Fig. 1-4 illustrate an embodiment of the present invention.

As shown in fig. 1 and 2, the first carrier roller assembly 1 is installed in a groove of a left side vertical plate of the bracket 3, and the second carrier roller assembly 2 is installed in a groove of a right side vertical plate of the bracket 3. The first idler assembly 1 and the second idler assembly 2 are identical. After the installation is finished, the upper roller surfaces of the first carrier roller assembly 1 and the second carrier roller assembly 2 are located on the same horizontal line.

As shown in fig. 3, the first bearing 6, the distance ring 8 and the second bearing 10 are assembled on the shaft 7, and the distance ring 8 is positioned between the first bearing 6 and the second bearing 10; the roller 4 is assembled on a first bearing 6 and a second bearing 10; the circlip for hole 5 is positioned at the left side of the bearing I6 and is assembled in the groove of the roller 4; and a shaft elastic retainer ring 9 is positioned at the right side of the second bearing 10 and is assembled in a groove of the shaft 7. The roller 4 is a conical roller, an included angle beta is formed between the roller surface and the axis, and a flange is arranged at the large end of the roller surface in diameter.

As shown in fig. 4, two ends of the shaft 7 are provided with processing planes, and the included angle between the processing planes and the axial line is equal to the included angle β between the roll surfaces of the rolls 4. During assembly, the planes at the two ends are in contact with the bottoms of the grooves in the vertical plates at the two ends of the bracket 3, so that the upper roller surfaces of the first carrier roller assembly 1 and the second carrier roller assembly 2 are positioned on the same horizontal line.

According to the utility model, the carrier roller is designed into the conical roller, the roller surfaces of the two rollers are positioned on the same horizontal line, the drag chain running on the carrier roller can be slightly corrected, the drag chain is prevented from collapsing, the stable and safe running of the drag chain is facilitated by the supporting effect of the drag chain, and thus the medium pipeline is protected from being damaged. The device has simple and reasonable structure and is convenient to maintain and replace.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. A carrier roller device for a heavy-load long-stroke drag chain is characterized by comprising a carrier roller assembly I (1), a carrier roller assembly II (2) and a bracket (3); the first carrier roller assembly (1) is installed in a groove of a vertical plate on the left side of the support (3), and the second carrier roller assembly (2) is installed in a groove of a vertical plate on the right side of the support (3).

2. An idler unit for a heavy duty long travel drag chain according to claim 1 wherein said idler assemblies one (1) and two (2) are identical.

3. The idler device for a heavy-duty long-stroke drag chain according to claim 1, wherein the upper roll surfaces of the idler assemblies one (1) and two (2) are located on the same horizontal line.

4. An idler unit according to claim 1 characterised in that said idler assembly one (1) includes a roller (4), a circlip for hole (5), a bearing one (6), a shaft (7), a distance ring (8), a circlip for shaft (9), a bearing two (10); the bearing I (6), the distance ring (8) and the bearing II (10) are assembled on the shaft (7), and the distance ring (8) is positioned between the bearing I (6) and the bearing II (10); the roller (4) is assembled on the first bearing (6) and the second bearing (10); the circlip for hole (5) is positioned at the left side of the bearing I (6) and is assembled in the groove of the roller (4); the elastic retainer ring (9) for the shaft is positioned on the right side of the second bearing (10) and is assembled in the groove of the shaft (7).

5. An idler roller device for a heavy duty long travel drag chain according to claim 4 wherein said roller (4) is a tapered roller having a surface forming an angle β with the axis and a flange at the larger diameter end of the surface.

6. An idler roller device for a heavy duty long travel drag chain according to claim 4 wherein both ends of said shaft (7) are provided with a machined plane, the included angle between the machined plane and the axis being equal to the included angle β of the roller surface of the roller (4).