CN218049654U

CN218049654U - Through cover structure of short stress path rolling mill pull rod system

Info

Publication number: CN218049654U
Application number: CN202121829201.4U
Authority: CN
Inventors: 孙永波; 孙吉才; 吕海洋
Original assignee: Laiwu Iron & Steel Metallurgy Ecological Engineering Technology Co ltd
Current assignee: Laiwu Iron & Steel Metallurgy Ecological Engineering Technology Co ltd
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2022-12-16
Anticipated expiration: 2031-08-06

Abstract

The utility model relates to a lead to lid structure of short stress line rolling mill pull rod system, including the pressure disk of barrel and rigid coupling at barrel lower extreme outer lane, it has the mounting hole to open on the pressure disk, top-down has opened last seal groove, well seal groove and lower seal groove in proper order in the barrel, go up and be equipped with the dust ring in the seal groove, all be equipped with O type circle sealing washer in well seal groove and the lower seal groove, the lower extreme of pressure disk is opened there is the end face seal groove, be equipped with O type circle sealing washer in the end face seal groove, the utility model discloses a set up multichannel sealing pass, strengthened sealed effect, can protect the operation in the rolling mill pull rod system upper bearing seat better, furthest's zero part removes rust, stops up and blocks up dead trouble, makes equipment can keep good running state for a long time to reduce the rolling mill and maintenance cost.

Description

Through cover structure of short stress path rolling mill pull rod system

Technical Field

The utility model relates to a short stress path rolling mill field specifically indicates a lead to and covers structure of short stress path rolling mill pull rod system.

Background

At present, a short stress path rolling mill is generally applied to a bar production line, and the equipment quantity is large. The relatively rotating pull rod, nut and other parts in the assembly of the pull rod system in the rolling mill need good lubrication, and the space in which the parts are arranged needs to be effectively sealed for a long time. The through cover is used as an assembly part at the top of the bearing seat of the pull rod system, once sealing is poor, external sewage, dust, mud, iron scale and the like can invade to destroy lubricating conditions, so that the pull rod is rusted, plugged and clamped, and finally a roll gap cannot be adjusted to be off-line. Most of the existing through covers only have one sealing defense line, and the protection capability is weak due to the adoption of dustproof sealing or O-shaped ring sealing, so that the actual requirement cannot be met, and therefore, the optimized through cover sealing structure is very necessary for improving the sealing protection effect.

Disclosure of Invention

The utility model provides a to the not enough of prior art, a lead to of short stress path rolling mill pull rod system and cover structure that simple structure, leakproofness are good.

The utility model discloses a through following technical scheme realizes, provides a logical lid structure of short stress line rolling mill pull rod system, including the pressure disk of barrel and rigid coupling in barrel lower extreme outer lane, it has the mounting hole to open on the pressure disk, top-down has opened last seal groove, well seal groove and lower seal groove in proper order in the barrel, be equipped with the dust ring in the last seal groove, all be equipped with O type circle sealing washer in well seal groove and the lower seal groove, the lower extreme of pressure disk is opened there is the end face seal groove, be equipped with O type circle sealing washer in the end face seal groove.

Dust ring and O type circle sealing washer in the barrel play sealed effect between to barrel and pull rod in this scheme to improve sealed effect through the multilayer seal, the O type circle sealing washer of pressure disk lower extreme installation plays sealed effect to the pressure disk with lead to between the installation face, thereby makes to lead to and cover each department sealed inseparable.

Preferably, the lower end face of the pressure plate is provided with a downward protruding annular boss. The annular boss that sets up in this scheme inserts in the pull rod mounting hole, plays the positioning action, can also strengthen certain sealed effect.

Preferably, the inner ring of the end face seal groove is attached to the outer ring of the annular boss. The inner circle of end face seal groove in this scheme and the laminating of the outer lane of annular boss to make O type circle sealing washer in the end face seal groove seal up through the squeezing action between annular boss and the pull rod mounting hole, strengthen sealed effect.

Preferably, the upper sealing groove is formed in the upper end of the cylinder body. Last seal groove in this scheme sets up the upper end at the barrel to play dustproof effect to the upper end.

As optimization, the mounting holes are provided with a plurality of and evenly distributed along the circumferential direction of the cylinder body. The mounting hole is provided with a plurality ofly and follows barrel circumference equipartition in this scheme to everywhere pressure equipartition after making the pressure disk installation prevents to lead to sealed harmfully because of the packing force is uneven.

As optimization, a sealing test hole is formed in the side face of the cylinder body, and a sealing plug is arranged in the sealing test hole. The sealing test hole that sets up in this scheme can be through pouring into high-pressure gas into in the sealing test hole, detects the sealed effect in the barrel through measuring pressure.

The utility model has the advantages that: the utility model discloses a lead to and cover structure of short stress path rolling mill pull rod system through setting up the multichannel sealed pass, has reinforceed sealed effect, can protect the operation in the rolling mill pull rod system upper bearing seat better, and furthest's spare part of exempting from removes corrosion, stopper stifled and the dead trouble of card, makes rolling mill equipment can keep good running state for a long time to reduce the amount of labour and maintenance cost.

Drawings

Fig. 1 is a cross-sectional view of the present invention;

shown in the figure:

1. pressure disk, 2, barrel, 3, go up the seal groove, 4, well seal groove, 5, lower seal groove, 6, end face seal groove.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.

As shown in fig. 1, the utility model discloses a lead to lid structure of short stress path rolling mill pull rod system, including barrel 2 and rigid coupling pressure disk 1 in barrel 2 lower extreme outer lane, barrel 2 is ring shape, and the both ends opening sets up, and pressure disk 1 and barrel 2 integrated into one piece, pressure disk 1 set up at barrel 2 lower extreme, and pressure disk 1's shape is ring shape, pressure disk 1's lower terminal surface and barrel 2's lower terminal surface parallel and level.

Open on the pressure disk 1 has the mounting hole, the mounting hole is provided with a plurality ofly and follows 2 circumference equipartitions of barrel to pass the mounting hole through the bolt and will lead to the lid to be fixed on leading to covering the installation face.

The pull rod penetrates through the cylinder body 2, an upper sealing groove 3, a middle sealing groove 4 and a lower sealing groove 5 are sequentially formed in the cylinder body 2 from top to bottom, the upper sealing groove 3 is arranged at the upper end of the cylinder body 2, and the middle sealing groove 4 and the lower sealing groove 5 are sequentially arranged from top to bottom.

Go up the seal groove 3 and be equipped with the dust ring in, all be equipped with O type circle sealing washer in well seal groove 4 and the lower seal groove 5, the lower extreme of pressure disk 1 is opened there is end face seal groove 6, be equipped with O type circle sealing washer in the end face seal groove 6.

The lower terminal surface of pressure disk 1 is equipped with convex annular boss downwards, the hole parallel and level of annular boss and the hole of barrel 2, the external diameter of annular boss corresponds with logical lid mounting hole internal diameter to insert annular boss and lead to in covering the mounting hole.

The inner ring of the end face seal groove 6 is attached to the outer ring of the annular boss, the O-shaped ring seal ring in the end face seal groove 6 can seal the pressure plate 1 and lead to the cover mounting surface on one hand, and on the other hand, the O-shaped ring seal ring is extruded to be blocked between the outer ring of the annular boss and the cover mounting hole.

The side of the barrel body 2 is provided with a sealing test hole, the sealing test hole is formed below the lower sealing groove 5 and above the pressure plate 1, a sealing plug is arranged in the sealing test hole, so that the sealing test hole is sealed, and when the sealing test is required, the sealing plug is detached for testing.

Of course, the above description is not limited to the above examples, and technical features of the present invention that are not described in the present application may be implemented by or using the prior art, and are not described herein again; the above embodiments and drawings are only used for illustrating the technical solutions of the present invention and are not intended to limit the present invention, and the present invention has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention should also belong to the protection scope of the claims of the present invention.

Claims

1. The utility model provides a lead to and cover structure of short stress path rolling mill pull rod system which characterized in that: including barrel (2) and rigid coupling pressure disk (1) at barrel (2) lower extreme outer lane, it has the mounting hole to open on pressure disk (1), top-down has opened last seal groove (3), well seal groove (4) and lower seal groove (5) in proper order in barrel (2), upward be equipped with the dust ring in seal groove (3), all be equipped with O type circle sealing washer in well seal groove (4) and lower seal groove (5), the lower extreme of pressure disk (1) is opened there is terminal surface seal groove (6), be equipped with O type circle sealing washer in terminal surface seal groove (6).

2. The through cover structure of the short stress path rolling mill tie rod train of claim 1, wherein: the lower end face of the pressure plate (1) is provided with a downward protruding annular boss.

3. The through cover structure of the short stress path rolling mill pull rod system according to claim 2, wherein: and the inner ring of the end face sealing groove (6) is attached to the outer ring of the annular boss.

4. The through cover structure of the short stress path rolling mill pull rod system according to claim 1, wherein: the upper sealing groove (3) is arranged at the upper end of the cylinder body (2).

5. The through cover structure of the short stress path rolling mill pull rod system according to claim 1, wherein: the mounting hole is provided with a plurality of and along barrel (2) circumference equipartition.

6. The through cover structure of the short stress path rolling mill pull rod system according to claim 1, wherein: and a sealing test hole is formed in the side surface of the cylinder body (2), and a sealing plug is arranged in the sealing test hole.