CN213611731U

CN213611731U - Rod mill barrel leaks thick liquid bolt structure

Info

Publication number: CN213611731U
Application number: CN202022363573.4U
Authority: CN
Inventors: 李国峰; 卢哲; 金天珍
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-22
Filing date: 2020-10-22
Publication date: 2021-07-06
Anticipated expiration: 2030-10-22

Abstract

The utility model discloses a slurry leaking bolt structure of a rod mill cylinder, which comprises a cylinder liner structure, a sealing box, a gland, a hexagon nut and a bolt main body; the outer side fixed mounting of a section of thick bamboo lining structure has sealed letter, the top of sealed letter is equipped with the recess, the dish spring has been placed to the interior bottom of recess, butadiene-acrylonitrile rubber has been placed to the inside top that is located the dish spring of recess, the top of sealed letter is stamped the gland, a section of thick bamboo lining structure includes barrel and welt, the medial surface fixed mounting of barrel has concave frame, concave frame one side fixed mounting has fixed establishment. The utility model discloses set up concave frame, picture peg and fixed establishment, the welt can be fixed inside the barrel through concave frame, picture peg and fixed establishment, and in operation at the rod mill, the welt is along with the barrel rotates at the uniform velocity together, consequently can not produce relative displacement between welt and the barrel, can avoid the bolt to receive periodic alternating shearing force and the condition of rupture appears.

Description

Rod mill barrel leaks thick liquid bolt structure

Technical Field

The utility model relates to a rod mill barrel bolt seal technical field specifically is a rod mill barrel leaks thick liquid bolt structure.

Background

Bolt: mechanical parts, the cylindrical threaded fastener of adapted nut, a class of fastener that comprises head and screw rod (the cylinder that has the external screw thread) two parts need with the nut cooperation for the fastening connection has two parts of through-hole, this kind of connection form is called bolted connection, if unscrew the nut from the bolt, can make these two parts separate again, so bolted connection belongs to detachable connection, in order to guarantee its sealing performance when rod mill barrel bolt installation, needs to set up a rod mill barrel and leaks thick liquid bolt structure.

The existing rod mill barrel slurry leakage bolt structure has the defects that:

1. the existing rod mill barrel slurry leakage bolt structure is sealed by a rubber pad and a gland, slurry leakage is easy to occur, the on-site environmental sanitation is poor, equipment is frequently started and stopped, the coal slurry concentration fluctuation is large, the rubber pad is hard, and the bolt is easy to harden and spall, so that the slurry leakage or the bolt is broken.

2. The existing rod mill cylinder slurry leakage bolt structure is characterized in that when a rod mill is in operation, a lining plate rotates along with a cylinder body and generates relative displacement with the cylinder body, so that a bolt bears periodic alternating shearing force to be broken off in a fatigue mode, and therefore the existing rod mill cylinder slurry leakage bolt structure is provided to solve the existing problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a thick liquid bolt structure is leaked to stick mill barrel to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a rod mill cylinder slurry leakage bolt structure comprises a cylinder liner structure, a sealing box, a gland, a hexagon nut and a bolt main body; a sealing box is fixedly installed on the outer side of the barrel lining structure, a groove is formed in the top of the sealing box, a disc spring is placed at the inner bottom of the groove, nitrile rubber is placed above the disc spring in the groove, and a gland is covered on the top of the sealing box;

the barrel lining structure comprises a barrel body and a lining plate, wherein a concave frame is fixedly arranged on the inner side surface of the barrel body, a fixing mechanism is fixedly arranged on one side of the concave frame, and an inserting plate is fixedly arranged at the position, corresponding to the concave frame, of the outer side surface of the lining plate;

the bottom fixed mounting of welt has the bolt main part, the bolt main part loops through barrel, sealed box, dish spring, nitrile rubber, gland, the top that the bolt main part is located the gland inserts elastic washer, the top of bolt main part is twisted there is hexagon nut.

Preferably, a week at sealing box top is equipped with the socket of four groups of equidistance, a week of gland bottom is equipped with the gag lever post of four groups of equidistance.

Preferably, a limiting plate is fixedly mounted inside the fixing mechanism through a return spring, an inserting rod is fixedly mounted at the central position of one side of the limiting plate, a pull rod is fixedly mounted at the central position of the other side of the limiting plate, and a pull ring is fixedly mounted at the outer side end of the pull rod extending to the fixing mechanism.

Preferably, the bolt main body is a flat-head bolt, and the material of the bolt main body is 15 CrMo.

Preferably, the central point department of barrel, welt, sealed box is equipped with the screw hole, the central point department of dish spring, nitrile rubber, gland and spring washer is equipped with the through-hole, concave frame and picture peg side are equipped with the through-hole with the position department that the inserted bar corresponds.

Preferably, a full-welding structure is arranged between one circle of the bottom of the sealing box and the barrel.

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

1. the utility model discloses set up sealed box, dish spring, butadiene-acrylonitrile rubber, gland isotructure, can improve the leakproofness to the bolt main part through sealed box, dish spring, butadiene-acrylonitrile rubber, gland isotructure, butadiene-acrylonitrile rubber's life is longer, and the difficult sclerosis spalling of butadiene-acrylonitrile rubber moreover can not cause the bolt main part not hard up, thereby can effectually avoid appearing leaking the phenomenon of thick liquid or bolt main part rupture, consequently also reduce equipment and open and stop the number of times, improve site environment health, guarantee that coal slurry concentration is stable.

2. The utility model discloses set up concave frame, picture peg and fixed establishment, the welt can be fixed inside the barrel through concave frame, picture peg and fixed establishment, and in operation at the rod mill, the welt is along with the barrel rotates at the uniform velocity together, consequently can not produce relative displacement between welt and the barrel, can avoid the bolt to receive periodic alternating shearing force and the condition of rupture appears.

Drawings

Fig. 1 is an external view of the present invention;

fig. 2 is a schematic cross-sectional view of the present invention;

fig. 3 is an enlarged schematic view of the present invention at a in fig. 2;

fig. 4 is an enlarged schematic view of the present invention at B in fig. 1.

In the figure: 1. a barrel liner structure; 2. a barrel; 3. a liner plate; 4. a concave frame; 5. inserting plates; 6. a fixing mechanism; 601. a return spring; 602. a limiting plate; 603. inserting a rod; 604. a pull rod; 605. a pull ring; 7. sealing the box; 701. a socket; 8. a groove; 9. a disc spring; 10. nitrile rubber; 11. a gland; 1101. a limiting rod; 12. an elastic washer; 13. a hexagonal nut; 14. a bolt body; 15. and (5) full welding structure.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the present invention provides an embodiment: a rod mill cylinder slurry leakage bolt structure comprises a cylinder liner structure 1, a sealing box 7, a gland 11, a hexagon nut 13 and a bolt main body 14; the sealing box 7 is welded on the outer side of the barrel liner structure 1, a groove 8 is formed in the top of the sealing box 7, a disc spring 9 is placed at the inner bottom of the groove 8, nitrile rubber 10 is placed above the disc spring 9 in the groove 8, a press cover 11 covers the top of the sealing box 7, the nitrile rubber 10 has good hardening and spalling prevention performance, the phenomena of slurry leakage and bolt main body 14 fracture caused by damage of the nitrile rubber 10 are avoided, and the bolt main body 14 seals the bolt main body 14 through the sealing box 7, the disc spring 9 and the nitrile rubber 10 and then the press cover 11 covers the top of the sealing box 7;

the barrel liner structure 1 comprises a barrel body 2 and a lining plate 3, a concave frame 4 is welded on the inner side surface of the barrel body 2, a fixing mechanism 6 is welded on one side of the concave frame 4, an inserting plate 5 is welded at a position, corresponding to the concave frame 4, on the outer side surface of the lining plate 3, the inserting plate 5 of the lining plate 3 is inserted into the concave frame 4 of the barrel body 2 and then is fixed through the fixing mechanism 6, so that the lining plate 3 is fixed inside the barrel body 2, and therefore when the rod mill runs, the lining plate 3 can rotate at a constant speed along with the barrel body 2, and the phenomenon that a bolt main body 14 is broken due to relative displacement between the lining plate;

the bottom of welt 3 has bolt main part 14 through helicitic texture fixed mounting, and bolt main part 14 loops through barrel 2, sealing box 7, dish spring 9, butadiene acrylonitrile rubber 10, gland 11, and the top that bolt main part 14 is located gland 11 inserts elasticity packing ring 12, and the top of bolt main part 14 is twisted there is hexagon nut 13, and it fixes bolt main part 14 to screw up hexagon nut 13, and when screwing up hexagon nut 13, elasticity packing ring 12 plays the cushioning effect.

Further, four sets of equidistant sockets 701 are arranged on one circle of the top of the sealing box 7, four sets of equidistant limiting rods 1101 are arranged on one circle of the bottom of the gland 11, and when the gland 11 is clamped on the sealing box 7, the limiting rods 1101 are inserted into the sockets 701 for limiting.

Further, a limiting plate 602 is welded in the fixing mechanism 6 through a return spring 601, an inserting rod 603 is welded in the central position of one side of the limiting plate 602, a pull rod 604 is welded in the central position of the other side of the limiting plate 602, a pull ring 605 is welded at the outer end of the pull rod 604 extending to the fixing mechanism 6, the inserting rod 603 is pulled to move inwards by the aid of the pull ring 605, then the inserting plate 5 of the lining plate 3 is inserted into the concave frame 4 of the barrel body 2, the pull ring 605 is loosened at the moment, the inserting rod 603 is pushed under the action of the return spring 601 to be inserted into the inserting plate 5 and the concave frame 4, and the fixing of the inserting plate 5 and the concave.

Further, bolt main part 14 is the flat head bolt, and the material of bolt main part 14 is 15CrMo, and bolt main part 14 of 15CrMo material has better intensity, can effectually avoid bolt main part 14 to appear cracked phenomenon.

Further, threaded holes are formed in the central positions of the barrel body 2, the lining plate 3 and the sealing box 7, the threaded holes in the barrel body 2, the lining plate 3 and the sealing box 7 facilitate screwing of the bolt main body 14, through holes are formed in the central positions of the disc spring 9, the nitrile rubber 10, the pressing cover 11 and the elastic washer 12, the through holes in the disc spring 9, the nitrile rubber 10, the pressing cover 11 and the elastic washer 12 facilitate passing of the bolt main body 14, through holes are formed in the positions, corresponding to the insertion rods 603, of the side surfaces of the concave frame 4 and the insertion plate 5, and the insertion rods 603 are conveniently inserted into the through holes in the concave frame 4 and the insertion plate.

Further, be full welding structure 15 between sealed letter 7 bottom a week and the barrel 2, full welding structure 15 can guarantee the stability of being connected and the leakproofness between sealed letter 7 and the barrel 2.

The working principle is as follows: during the use, insert the picture peg 5 of welt 3 inside the concave frame 4 of barrel 2, then fix through fixed establishment 6, thereby fix welt 3 inside barrel 2, consequently, when the rod mill operates, welt 3 can be along with barrel 2 is at the uniform velocity rotation together, the phenomenon that relative displacement leads to bolt main part 14 fracture between welt 3 and barrel 2 has been avoided, and bolt main part 14 is through sealed box 7, dish spring 9, butadiene acrylonitrile rubber 10, gland 11 isotructure, can improve the leakproofness to bolt main part 14, the life of butadiene acrylonitrile rubber 10 is longer, and butadiene acrylonitrile rubber 10 is difficult for the sclerosis spalling, consequently, can not cause bolt main part 14 to become flexible, thereby can effectually avoid appearing leaking the phenomenon of thick liquid or bolt main part 14 rupture, consequently also reduce the equipment and open and stop the number of times, improve on-site environmental sanitation, guarantee that the coal thick liquid concentration is stable.

The details of the present invention are well known to those skilled in the art.

Finally, it is to be noted that: the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified and replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. A rod mill cylinder slurry leakage bolt structure comprises a cylinder liner structure (1), a sealing box (7), a gland (11), a hexagon nut (13) and a bolt main body (14); the method is characterized in that: a sealing box (7) is fixedly installed on the outer side of the barrel lining structure (1), a groove (8) is formed in the top of the sealing box (7), a disc spring (9) is placed at the inner bottom of the groove (8), nitrile rubber (10) is placed above the disc spring (9) in the groove (8), and a gland (11) is covered on the top of the sealing box (7);

the barrel lining structure (1) comprises a barrel body (2) and a lining plate (3), a concave frame (4) is fixedly installed on the inner side surface of the barrel body (2), a fixing mechanism (6) is fixedly installed on one side of the concave frame (4), and an inserting plate (5) is fixedly installed on the outer side surface of the lining plate (3) at a position corresponding to the concave frame (4);

the bottom fixed mounting of welt (3) has bolt main part (14), bolt main part (14) loop through barrel (2), sealing box (7), dish spring (9), nitrile rubber (10), gland (11), the top that bolt main part (14) are located gland (11) inserts elasticity packing ring (12), the top of bolt main part (14) is twisted there is hexagon nut (13).

2. The rod mill cylinder body slurry leakage bolt structure according to claim 1, characterized in that: a week at sealing box (7) top is equipped with socket (701) of four groups of equidistance, a week of gland (11) bottom is equipped with gag lever post (1101) of four groups of equidistance.

3. The rod mill cylinder body slurry leakage bolt structure according to claim 1, characterized in that: the inside of fixed establishment (6) has limiting plate (602) through reset spring (601) fixed mounting, and the central point department fixed mounting of limiting plate (602) one side has inserted bar (603), and the central point department fixed mounting of limiting plate (602) opposite side has pull rod (604), and outside end fixed mounting that pull rod (604) extended to fixed establishment (6) has pull ring (605).

4. The rod mill cylinder body slurry leakage bolt structure according to claim 1, characterized in that: the bolt main body (14) is a flat-head bolt, and the bolt main body (14) is made of 15 CrMo.

5. The rod mill cylinder body slurry leakage bolt structure according to claim 1, characterized in that: the central point department of barrel (2), welt (3), sealing box (7) is equipped with the screw hole, the central point department of dish spring (9), nitrile rubber (10), gland (11) and elastic washer (12) is equipped with the through-hole, concave frame (4) and picture peg (5) side are equipped with the through-hole with the position department that inserted bar (603) corresponds.

6. The rod mill cylinder body slurry leakage bolt structure according to claim 1, characterized in that: and a full-welding structure (15) is arranged between one circle of the bottom of the sealing box (7) and the barrel body (2).