CN216504767U - Spanner for adjusting sealing pretightening force of roll bending oil cylinder shaft head of cold rolling mill - Google Patents

Abstract

The utility model discloses a wrench for adjusting the sealing pre-tightening force of a shaft head of a roll bending oil cylinder of a cold rolling mill, and mainly relates to the technical field of adjusting the sealing pre-tightening force of the shaft head of the roll bending oil cylinder. Comprises an arc spanner and a handle; the arc spanner is provided with a connecting and fixing hole; the handle is provided with a through groove, and the through groove is detachably matched with a limiting insertion column. The through groove is a strip-shaped groove. The through groove is provided with a plurality of positioning grooves, and the limiting insertion column is detachably matched with the positioning grooves. The arc spanner and the handle are detachably connected. And the limiting insertion column is provided with a flat plate matched with the positioning groove. The utility model has the beneficial effects that: it can conveniently screw up the annular lid of screwing up in advance and realize adjusting V-arrangement sealing washer and compress tightly sealing strength, obtain better sealed effect, prevent to leak, can prevent again that the annular lid of screwing up in advance from receiving vibrations not hard up and reducing sealed effect.

Description

Spanner for adjusting sealing pretightening force of roll bending oil cylinder shaft head of cold rolling mill

Technical Field

The utility model relates to the technical field of adjusting of the sealing pretightening force of a shaft head of a bending roller oil cylinder, in particular to a wrench for adjusting the sealing pretightening force of the shaft head of the bending roller oil cylinder of a cold rolling mill.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

As shown in the attached figure 5 of the specification, the problems of seal aging and leakage can be effectively solved by adopting a three-way combined sealing mode of a V-shaped sealing ring, a dustproof pad and a YX-shaped sealing ring for a shaft. If the V-shaped sealing ring leaks in the use process, the annular pre-tightening cover can be rotated at every time to adjust the compression strength to obtain a better sealing effect and prevent leakage. The V-shaped sealing ring does not need to be replaced until the V-shaped sealing ring does not have the pre-tightening amount. The automatic compensation device mainly solves the problems that the working roll bending force is adjusted, the stability of a roll system of the roll is reduced, the guide ring is sealed and abraded, the phenomenon that the piston rod of a bending roll cylinder is not easy to perceive in the rolling process is achieved, the automatic compensation for the abrasion loss of the guide ring is sealed and caused when the piston rod of the bending roll cylinder irregularly swings, the leakage can be easily prevented by only increasing the sealing pretightening force after the leakage, the maintenance difficulty is reduced, the maintenance cost is reduced, the production operation time is prolonged, the localization of a sealing element is achieved, the hydraulic system is prevented from being invaded by external pollutants, the fault of the hydraulic system is avoided, and the service life of a servo valve is prolonged. Because the machine shakes and makes the annular pretension lid become flexible very easily and thus reduce sealed effect, so it can conveniently screw up annular pretension lid to say that need one kind can prevent that annular pretension lid from receiving vibrations and not hard up special spanner.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a wrench for adjusting the sealing pretightening force of a roll bending oil cylinder shaft head of a cold rolling mill, which not only can conveniently screw an annular pretightening cover to realize the adjustment of the compression sealing strength of a V-shaped sealing ring, obtain better sealing effect and prevent leakage, but also can prevent the annular pretightening cover from being loosened by vibration to reduce the sealing effect.

In order to achieve the purpose, the utility model is realized by the following technical scheme:

the wrench for adjusting the sealing pre-tightening force of the roll bending oil cylinder shaft head of the cold rolling mill comprises an arc-shaped wrench and a handle; the arc spanner is provided with a connecting and fixing hole; the handle is provided with a through groove, and the through groove is detachably matched with a limiting insertion column.

The through groove is a strip-shaped groove.

The through groove is provided with a plurality of positioning grooves, and the limiting insertion column is detachably matched with the positioning grooves.

And the limiting insertion column is provided with a flat plate matched with the positioning groove.

The flat plate is provided with a rope ring.

The tail end of the handle is provided with a rope hole, and the rope ring is connected with the rope hole through a connecting rope.

The arc spanner and the handle are detachably connected.

The arc spanner and the handle are detachably connected in a threaded connection mode.

Compared with the prior art, the utility model has the beneficial effects that:

1. as shown in the attached figure 4 of the specification, a connecting and fixing hole in an arc wrench is fixedly connected with a connecting hole in the top of an annular pre-tightening cover through connecting pieces such as bolts, the annular pre-tightening cover can be driven to rotate by rotating the wrench, a plurality of limiting insertion holes are formed in the annular array on the end cover of the shaft of the bending roller cylinder, and the annular pre-tightening cover rotates by corresponding angles (90 degrees, 180 degrees, 270 degrees and 360 degrees) to adjust the compression strength in future, so that a V-shaped sealing ring is pressed downwards, a better sealing effect is achieved, and leakage is prevented. After the annular pre-tightening cover rotates by a corresponding angle, the limiting insertion hole is aligned with the penetrating groove, the limiting insertion column penetrates through the penetrating groove to be inserted into the limiting insertion hole, the annular pre-tightening cover is prevented from being loosened due to vibration of a machine, and then a special spanner is driven to loosen to enable the V-shaped sealing ring to be not tightly pressed and leakage occurs. Consequently, the spanner of this technique can conveniently screw up the annular lid of straining in advance and realize adjusting V-arrangement sealing washer and compress tightly sealing strength, obtain better sealed effect, prevent to leak, can prevent again that the annular lid of straining in advance from receiving vibrations not hard up and reducing sealed effect.

2. For cold rolling mills of different models, the diameters of the shaft heads of the bending roller oil cylinders are different, so that the radial positions of a plurality of limiting jacks in an annular array on the shaft head end cover of the bending roller oil cylinder are different, in order to ensure the universality of the wrench, an arc wrench and a handle are detachably connected in a threaded connection mode, and the arc wrench with the proper diameter is selected to be matched with the handle according to the model; meanwhile, positioning grooves matched with the positioning holes in various types of machines are formed in the handle, and after the annular pre-tightening cover rotates by a corresponding angle, the positioning holes are aligned with the through grooves, and then the positioning insertion posts penetrate through the through grooves and are inserted into the corresponding positioning holes.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic structural diagram of the present invention.

Fig. 3 is an exploded view of the present invention.

Fig. 4 is a state diagram of the present invention in use.

Fig. 5 is an illustration of the sealing structure of the head of the bending roll cylinder.

Reference numerals shown in the drawings:

1. an arc wrench; 2. a handle; 3. connecting the fixing holes; 4. penetrating a groove; 5. limiting and inserting the column; 6. positioning a groove; 7. a flat plate; 8. a rope loop; 9. a rope hole; 10. connecting ropes; 11. a V-shaped seal ring; 12. a dust-proof pad; 13. a YX-shaped seal ring for a shaft; 14. an annular pre-tightening cover; 15. connecting holes; 16. a spindle head end cover; 17. limiting the jacks; 18. compressing the flange.

Detailed Description

The utility model will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.

Before analyzing the technology of the utility model, the following background explanation is firstly carried out on the shaft head sealing structure of the bending roller oil cylinder:

as shown in the attached figure 5 of the specification, the problems of seal aging and leakage can be effectively solved by adopting a three-way combined sealing mode of a V-shaped sealing ring 11, a dustproof pad 12 and a YX-shaped sealing ring 13 for a shaft. If the V-shaped sealing ring 11 meets leakage in the using process, the annular pre-tightening cover 14 can be rotated each time to adjust the compression strength so as to obtain better sealing effect and prevent leakage. It is not necessary to replace the V-ring 11 until the V-ring has no pretension. The automatic compensation device mainly solves the problems that the working roll bending force is adjusted, the stability of a roll system of the roll is reduced, the guide ring is sealed and abraded, the phenomenon that the piston rod of a bending roll cylinder is not easy to perceive in the rolling process is achieved, the automatic compensation for the abrasion loss of the guide ring is sealed and caused when the piston rod of the bending roll cylinder irregularly swings, the leakage can be easily prevented by only increasing the sealing pretightening force after the leakage, the maintenance difficulty is reduced, the maintenance cost is reduced, the production operation time is prolonged, the localization of a sealing element is achieved, the hydraulic system is prevented from being invaded by external pollutants, the fault of the hydraulic system is avoided, and the service life of a servo valve is prolonged.

Example 1:

the utility model relates to a wrench for adjusting the sealing pretightening force of a roll bending oil cylinder shaft head of a cold rolling mill, which comprises an arc wrench 1 and a handle 2; the arc spanner is provided with a connecting and fixing hole 3; the handle 2 is provided with a through groove 4, and the through groove 4 is detachably matched with a limiting insertion column 5.

As shown in the attached drawing fig. 4 of the specification, the connection fixing hole 3 on the arc wrench is fixedly connected with the connection hole 15 at the top of the annular pre-tightening cover 14 through a connecting piece such as a bolt, and then the annular pre-tightening cover 14 can be driven to rotate by rotating the wrench, the annular array on the end cover 16 of the shaft head of the bending roller cylinder is provided with a plurality of limiting insertion holes 17, the embodiment is provided with 4 limiting insertion holes 17, the annular pre-tightening cover 14 rotates by corresponding angles (90 degrees, 180 degrees, 270 degrees and 360 degrees) to adjust the compression strength, so that the V-shaped sealing ring 11 is pressed downwards through the compression flange 18 at the bottom of the annular pre-tightening cover 14, a better sealing effect is realized, and leakage is prevented. After the annular pre-tightening cover 14 rotates by a corresponding angle, the limiting insertion hole 17 is aligned with the through groove 4, the limiting insertion column 5 is inserted into the limiting insertion hole 17 through the through groove 4, looseness caused by vibration of a machine to the annular pre-tightening cover 14 is avoided, and then a special wrench is driven to loosen to enable the V-shaped sealing ring 11 to be not tightly pressed and leakage occurs. Therefore, the spanner of this technique can conveniently screw up annular pretension lid 14 and realize adjusting V-arrangement sealing washer 11 and compress tightly sealing strength, obtain better sealed effect, prevent to leak, can prevent again that annular pretension lid 14 from receiving vibrations not hard up and reducing sealed effect.

Example 2:

compared with embodiment 1, embodiment 2 has the following further technical improvements:

the through grooves 4 are strip-shaped grooves, the weight reduction purpose can be achieved, the through grooves are suitable for different cold rolling machine types, the limiting insertion columns 5 are placed according to the machine types, and the limiting insertion columns 5 penetrate through the through grooves 4 and are inserted into the limiting insertion holes 17.

The through groove 4 is provided with a plurality of positioning grooves 6, the limiting insertion column 5 is provided with a flat plate 7 matched with the positioning grooves 6, and the flat plate 7 is detachably matched and arranged at the positioning grooves 6. Thereby dull and stereotyped 7 and 6 cooperation back confirm the accurate position of spacing post 5 of inserting, because the position of constant head tank 6 matches according to spacing jack 17 position on the cold rolling mill model and aligns, so set up spacing post 5 of inserting on dull and stereotyped 7 can be more convenient insert spacing jack 17.

The flat plate 7 is provided with a rope ring 8. The tail end of the handle 2 is provided with a rope hole 9, the rope ring 8 is connected with the rope hole 9 through a connecting rope 10, and therefore the situation that the limiting insertion column 5 is lost due to disorder placement when being taken down from the limiting insertion hole 17 can be avoided.

The arc-shaped wrench 1 and the handle 2 are detachably connected in a threaded connection mode.

For cold rolling mills of different models, the diameters of the shaft heads of the bending roller oil cylinders are different, so that the radial positions of a plurality of limiting jacks 17 in an annular array on an end cover 16 of the shaft head of the bending roller oil cylinder are different, in order to ensure the universality of the wrench, the arc-shaped wrench 1 and the handle 2 are detachably connected in a threaded connection mode, and the arc-shaped wrench 1 with the proper diameter is selected to be matched with the handle 2 according to the model; meanwhile, the handle 2 is provided with a positioning groove 6 matched with the position of the limit insertion hole 17 on various types, and after the annular pre-tightening cover 14 rotates by a corresponding angle, the limit insertion hole 17 is aligned with the through groove 4, and then the limit insertion column 5 is inserted into the corresponding limit insertion hole 17 through the through groove 4.

Claims (8)

1. A spanner that is used for sealed pretightning force of cold rolling mill bending roller hydro-cylinder spindle nose to adjust, its characterized in that: comprises an arc spanner (1) and a handle (2);

the arc spanner (1) is provided with a connecting and fixing hole (3);

the handle (2) is provided with a through groove (4), and the through groove (4) is detachably matched with a limiting insertion column (5).

2. The wrench for adjusting the sealing pretightening force of the roll bending oil cylinder shaft head of the cold rolling mill according to claim 1, characterized in that: the through groove (4) is a strip-shaped groove.

3. The wrench for adjusting the sealing pretightening force of the roll bending oil cylinder shaft head of the cold rolling mill according to claim 2, characterized in that: the through groove (4) is provided with a plurality of positioning grooves (6), and the limiting insertion column (5) is detachably matched with the positioning grooves (6).

4. The wrench for adjusting the sealing pre-tightening force of the shaft head of the roll bending oil cylinder of the cold rolling mill according to claim 3, is characterized in that: and a flat plate (7) matched with the positioning groove (6) is arranged on the limiting inserting column (5).

5. The wrench for adjusting the sealing pre-tightening force of the shaft head of the roll bending oil cylinder of the cold rolling mill according to claim 4, is characterized in that: the flat plate (7) is provided with a rope ring (8).

6. The wrench for adjusting the sealing pre-tightening force of the shaft head of the roll bending oil cylinder of the cold rolling mill according to claim 5, is characterized in that: the tail end of the handle (2) is provided with a rope hole (9), and the rope ring (8) is connected with the rope hole (9) through a connecting rope (10).

7. The wrench for adjusting the sealing pretightening force of the roll bending oil cylinder shaft head of the cold rolling mill according to claim 1, characterized in that: the arc-shaped wrench (1) is detachably connected with the handle (2).

8. The wrench for adjusting the sealing pre-tightening force of the shaft head of the roll bending oil cylinder of the cold rolling mill according to claim 7, is characterized in that: the arc-shaped wrench (1) and the handle (2) are detachably connected in a threaded connection mode.

Images