CN202209421U - Shaft end seal device capable of compensating self-abrasion - Google Patents

Abstract

A shaft end seal device capable of compensating self-abrasion relates to a shaft end seal device for solving the problems that an existing seal device is relatively cumbersome in structure and occupies the shaft end space. In the shaft end seal device, three adjusting ring threaded through holes and three adjusting ring unthreaded holes on an adjusting ring are uniformly arranged along a circle; the end surface of a maze ring, which is opposite to the adjusting ring, is provided with a seal strip installation groove, three maze ring threaded blind holes and three maze ring unthreaded holes; the three maze ring threaded blind holes are right opposite to the three adjusting ring unthreaded holes; the three maze ring unthreaded holes are right opposite to the three adjusting ring threaded through holes; a seal strip is embedded in the seal strip installation groove, the adjusting ring and the maze ring are connected through three bolts; the end surface at one side of a seal ring is in contact with the end surface of the maze ring; and four screws are uniformly arranged along the outer surface of the circle of the adjusting ring, and each screw is in threaded connection with the adjusting ring. The shaft end seal device is applied in a reversible hammer crusher, and can be widely applied in thin oil lubrication equipment.

Description

A kind of can compensate self wearing and tearing shaft end seal device

Technical field

The utility model relates to a kind of shaft end seal device.

Background technique

In existing shaft end seal device, be the wearing and tearing of compensation sealing device in machine operation procedure, the elastic structures such as increasing springs that adopt more, this structure is loaded down with trivial details relatively and take the axle head space.

The model utility content

The purpose of the utility model is loaded down with trivial details relatively and take the problem in axle head space for solving existing sealing device structure, and a kind of shaft end seal device that can compensate self wearing and tearing is provided.

The utility model comprises adjustment ring, Stamping Steel Ribbon, labyrinth ring, seal ring, three bolts and four screws; The end face of said adjustment ring is provided with three adjustment ring tapped through holes and three adjustment ring unthreaded holes; Three adjustment ring tapped through holes and three adjustment ring unthreaded holes are along same circumference uniform distribution setting; And three adjustment ring tapped through holes are arranged alternately with three adjustment ring unthreaded holes, and labyrinth ring is provided with Stamping Steel Ribbon mounting groove, three labyrinth ring tapped blind holes and three labyrinth ring unthreaded holes with adjustment ring opposing end faces, three labyrinth ring tapped blind holes with three adjust encircle unthreaded hole over against; Three labyrinth ring unthreaded holes and three adjustment ring tapped through holes over against; Stamping Steel Ribbon is embedded in the Stamping Steel Ribbon mounting groove, and the adjustment ring is connected with three bolts with labyrinth ring, and a side end face of seal ring contacts with the end face of labyrinth ring; Four screws are uniformly distributed with setting along the circumferential outer surface that adjustment encircles, and each screw is threaded with the adjustment ring.

The utility model has the advantages that: the utility model is on mounting type; Adopt adjustment ring and labyrinth ring upper screwed hole and the corresponding mode of unthreaded hole; When wearing and tearing were taken place, labyrinth ring can produce under the resiliency urged of Stamping Steel Ribbon and move axially, and mended and realized repaying the wearing and tearing that seal arrangement produces; Compare existing technology, the utility model is simple in structure and do not take the axle head space.

Description of drawings

Fig. 1 is the overall structure sectional view of the utility model, and Fig. 2 is the structural representation of adjustment ring 1, and Fig. 3 is the structural representation of labyrinth ring 3.

Embodiment

Embodiment one: combine Fig. 1～Fig. 3 that this mode of execution is described; This mode of execution comprises adjustment ring 1, Stamping Steel Ribbon 2, labyrinth ring 3, seal ring 4, three bolts 5 and four screws 6; The end face of adjustment ring 1 is provided with three adjustment ring tapped through hole 1-1 and three adjustment ring unthreaded hole 1-2; Three adjustment ring tapped through hole 1-1 and three adjustment ring unthreaded hole 1-2 are along same circumference uniform distribution setting, and three adjustment ring tapped through hole 1-1 are arranged alternately with three adjustment ring unthreaded hole 1-2, and labyrinth ring 3 encircles 1 opposing end faces with adjustment and is provided with Stamping Steel Ribbon mounting groove 3-3, three labyrinth ring tapped blind hole 3-1 and three labyrinth ring unthreaded hole 3-2; Three labyrinth ring tapped blind hole 3-1 and three adjustment ring unthreaded hole 1-2 over against; Three labyrinth ring unthreaded hole 3-2 and three adjustment ring tapped through hole 1-1 over against, Stamping Steel Ribbon 2 is embedded among the Stamping Steel Ribbon mounting groove 3-3, adjustment ring 1 is connected with three bolts 5 of labyrinth ring 3 usefulness; One side end face of seal ring 4 contacts with the end face of labyrinth ring 3; The opposite side end face of seal ring 4 is embedded in the bearing (ball) cover, and four screws 6 are uniformly distributed with setting along the circumferential outer surface of adjusting ring 1, and each screw 6 is threaded with adjustment ring 1.The material of Stamping Steel Ribbon 2 is a nitrile butadiene rubber, and this material has the characteristics of good seal performance, and has certain elasticity.During use, at first with three bolts 5 pass respectively behind three adjustment ring unthreaded hole 1-2 on the adjustment ring 1 with labyrinth ring 3 on labyrinth ring tapped blind hole 3-1 be threaded, and Stamping Steel Ribbon 2 is pressed between adjustment ring 1 and the labyrinth ring 3; Seal ring 4 is installed in the seal ring mounting groove of bearing (ball) cover; To adjust ring 1 then, Stamping Steel Ribbon 2 and labyrinth ring 3 assemblies are enclosed within on the axle 7, and will adjusts ring 1, Stamping Steel Ribbon 2 and labyrinth ring 3 assemblies and be pushed into the working position of labyrinth ring with screw 6, will adjust with screw 6 and encircle 1 and be fixed on spools 7; Unload three bolts 5 then; Be threaded with three adjustment ring tapped through hole 1-1 that adjustment encircles on 1 respectively with three bolts 5 again, labyrinth ring 3 can be moved axially on axle 7, form seal area between labyrinth ring 3 and the seal ring 4; Wearing and tearing occur between labyrinth ring 3 and the seal ring 4; When labyrinth ring 3 with seal ring 4 wearing and tearing took place, Stamping Steel Ribbon 2 compressed labyrinth ring 3 through self elastic properties of materials, to wearing and tearing compensation at any time.

Embodiment two: combine Fig. 1～Fig. 3 that this mode of execution is described, the internal diameter of the adjustment ring unthreaded hole 1-2 of this mode of execution is greater than the nominal diameter of labyrinth ring tapped blind hole 3-1, and the internal diameter of labyrinth ring unthreaded hole 3-2 is greater than the nominal diameter of adjustment ring tapped through hole 1-1.Other composition is identical with embodiment one with annexation.

Working principle:

Seal arrangement weares and teares in machine operation procedure; Wearing and tearing occur between labyrinth ring 3 and the seal ring 4; Adjustment ring 1 and labyrinth ring 3 adopt the Placement of tapped holes and unthreaded hole; Make labyrinth ring 3 when wearing and tearing take place, utilize the elastic reaction of Stamping Steel Ribbon 2 to compress labyrinth ring 3, reach the purpose of compensate for wear at any time.

Claims (2)

1. one kind can compensate the shaft end seal device that self weares and teares; Said device comprises adjustment ring (1), Stamping Steel Ribbon (2), labyrinth ring (3), seal ring (4), three bolts (5) and four screws (6); It is characterized in that: the end face of said adjustment ring (1) is provided with three adjustment ring tapped through holes (1-1) and three adjustment ring unthreaded holes (1-2); Three adjustment ring tapped through holes (1-1) and three adjustment encircle unthreaded holes (1-2) along same circumference uniform distribution setting; And three adjustment ring tapped through holes (1-1) are arranged alternately with three adjustment ring unthreaded holes (1-2); Labyrinth ring (3) is provided with Stamping Steel Ribbon mounting groove (3-3), three labyrinth ring tapped blind holes (3-1) and three labyrinth ring unthreaded holes (3-2) with adjustment ring (1) opposing end faces; Three labyrinth ring tapped blind holes (3-1) and three adjustment ring unthreaded holes (1-2) over against, three labyrinth ring unthreaded holes (3-2) and three adjustment ring tapped through holes (1-1) over against, Stamping Steel Ribbon (2) is embedded in the Stamping Steel Ribbon mounting groove (3-3); Adjustment ring (1) is connected with three bolts (5) with labyrinth ring (3); One side end face of seal ring (4) contacts with the end face of labyrinth ring (3), and four screws (6) are uniformly distributed with setting along the circumferential outer surface of adjustment ring (1), and each screw (6) is threaded with adjustment ring (1).

According to claim 1 said a kind of can compensate self wearing and tearing shaft end seal device; It is characterized in that: the internal diameter of said adjustment ring unthreaded hole (1-2) is greater than the nominal diameter of labyrinth ring tapped blind hole (3-1), and the internal diameter of said labyrinth ring unthreaded hole (3-2) is greater than the nominal diameter of adjustment ring tapped through hole (1-1).

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