CN202418582U

CN202418582U - Rubber sealing ring

Info

Publication number: CN202418582U
Application number: CN2012200647840U
Authority: CN
Inventors: 李三济
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-02-16
Filing date: 2012-02-16
Publication date: 2012-09-05
Anticipated expiration: 2022-02-16

Abstract

The utility model relates to a rubber sealing ring for mechanical sealing, in particular to a rubber sealing ring used for sealing a bearing end cover with a shaft. The rubber sealing ring is characterized in that: the sealing ring (1) is in the shape of a circular ring; the outer ring of the circular ring is provided with threads (11), and the inner ring of the circular ring is provided with an inner ring hole (12); the inner ring hole (12) of the circular ring is in interference fit with the shaft (2) and can be synchronously rotated along with the shaft (2); the threads (11) are in the three shapes of triangle, trapezoid and sawteeth; and the threads (11) of the outer ring of the sealing ring (1) are rotated left and right.

Description

A kind of rubber seal

Technical field

The utility model relates to the rubber seal that mechanical seal is used, and particularly one is utilized in the rubber seal that seals usefulness between bearing (ball) cover and the axle.

Background technique

The kind of mechanical seal ring has: " O " RunddichtringO, " J " RunddichtringO, " U " RunddichtringO; " V " RunddichtringO etc., when these seal rings were used in the sealing of high-speed rotation axle, effect was just bad; Be in particular in and grown service time that wear extent is big between the inner ring of axle and seal ring, and leakage of oil just takes place; So the working life of seal ring is very short, often change seal ring, make equipment downtime and influenced efficiency of equipment.

The model utility content

This solve above-mentioned described shortcoming, a kind of special seal ring is provided, it is characterized in that: the shape of said seal ring is an annulus; There is screw thread the outer ring of annulus; Inner ring has inner ring hole, between the inner ring hole of said annulus and the axle to cooperate be interference fit, can rotate synchronously with axle; The shape of screw thread has: zigzag fashion, trapezoidal and Atria kind shape.

The rotation direction of the screw thread of rubber seal outer ring has two kinds of left-handed and dextrorotation; The opposite complete use of the rotation direction of the screw thread of the seal ring at axle two ends; When the axle high-speed rotation; The screw thread at two ends can be transported to oil the centre of axle, makes stream get back to the bearing housing the inside at the oil at axle and end cap upper shaft hole place, and sealing effect is good more.

The beneficial effect of the utility model is, because this rubber seal has adopted the working principle of helical feed, so the rotating speed of axle is high more; Sealing effect is good more, and manufacturing process is simple, and cost is low; Easy for installation, than other seal ring better market prospects are arranged.

Description of drawings

This specification comprises following five width of cloth accompanying drawings:

Fig. 1, Fig. 2, Fig. 3, Fig. 4 are the structural representations of a kind of rubber seal of the utility model, Fig. 1 wherein, Fig. 2,

Fig. 3 is along the cross section view at A-A position among Fig. 4;

Fig. 5 is the view of a kind of rubber seal of the utility model.

Component, toponym and pairing mark among the figure: seal ring 1, screw thread 11, inner ring hole 12, bearing (ball) cover 3, bearing housing 4, section part mark A-A.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is further specified.

With reference to Fig. 1, Fig. 2, Fig. 3; Fig. 4, a kind of rubber seal of the utility model is characterized in that: the shape of said seal ring (1) is an annulus; There is screw thread (11) outer ring of annulus; Inner ring has inner ring hole (12), and the inner ring hole of said annulus (12) is an interference fit with axle cooperating between (2), can rotate synchronously with axle (2).

With reference to Fig. 1, Fig. 2, Fig. 3, the shape of said screw thread (11) has: triangle, trapezoidal and three kinds of shapes of zigzag fashion; Wherein shown in Figure 1 is triangular shaped, and shown in Figure 2 is trapezoidal shape, and Fig. 3 is a saw-toothed shape.

With reference to Fig. 5, the rotation direction of the screw thread (11) of seal ring (1) outer ring has two kinds of left-handed and dextrorotation; The opposite complete use of the rotation direction of the screw thread of the seal ring at axle two ends (11); When axle (2) high-speed rotation; The screw thread at two ends (11) can be transported to oil the centre of axle (2), makes the oil at stream (3) axis hole place on axle (2) and end cap get back to bearing housing (4) the inside, and sealing effect is good more.

Some principles of the above a kind of rubber seal of the utility model that just explains through diagrams; Be not be to a kind of rubber seal of the utility model be confined to shown in described concrete structure and Applicable scope in; Turn round and look at every the modify and equivalent that might be utilized, all belong to the claim that the utility model is applied for.

Claims

1. rubber seal; It is characterized in that: the shape of said seal ring (1) is an annulus, and there is screw thread (11) outer ring of annulus, and inner ring has inner ring hole (12); The inner ring hole of said annulus (12) is an interference fit with axle cooperating between (2), can rotate synchronously with axle (2).

2. a kind of rubber seal according to claim 1 is characterized in that: the shape of said screw thread (11) has: triangle, trapezoidal and three kinds of shapes of zigzag fashion.

3. a kind of rubber seal according to claim 1 is characterized in that: the rotation direction of the screw thread (11) of seal ring (1) outer ring has two kinds of left-handed and dextrorotation.