CN101865276B

CN101865276B - Reducer sealing device having wearing compensation function

Info

Publication number: CN101865276B
Application number: CN201010209441.4A
Authority: CN
Inventors: 杨继东; 杨彦夫
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-06-19
Filing date: 2010-06-19
Publication date: 2014-11-05
Anticipated expiration: 2030-06-19
Also published as: CN101865276A

Abstract

The invention discloses a sealing device for a reducer. The sealing device comprises a flange and a rubber sealing ring arranged in a rim seal of the flange, wherein the outer wall of the rubber sealing ring is conical, i.e. the diameter of the upper end face is more than the one of the lower end face; the wall of the rim seal of the flange is also designed into conical shape with a conical angle slightly smaller than the one of the rubber sealing ring; the back section of the conical rim seal of the flange and a hole wall of a matching section of a rotating shaft both can be provided with a plurality of round sealing slots; and an inclined section opening can be arranged on the round ring and the side wall of the rubber sealing ring. The invention has the advantages that the sealing device can realize the continuous compensation for wearing, ensures the reliability of the sealing, takes full advantages of sealing ring, is capable of avoiding halt loss caused by exchanging the sealing element and can be applied in the reducers in various fields.

Description

A kind of reducer sealing device with integrated abrasion compensation

Technical field

The present invention relates to a kind of reducer sealing device with integrated abrasion compensation.

Background technique

Due to the long-time uninterrupted rotation of speed reducer output, input shaft, will inevitably cause the friction loss of Sealing, if can not continuously and effectively be compensated for this loss, will form seepage because of the excesssive gap of Sealing, the lighter can cause loss and the environmental pollution of lubricant oil, heavy also can be because of the wearing and tearing of oil starvation accelerating gear, or even damage.The most popular method addressing the above problem at present can only be to change in time Sealing, and this mode needs the speed reducer of long-term work for some, such as the difficulty of implementing the pumping unit speed reducer using in oil field is very large.Due to the continuity of such equipment operating running and the abominable of working environment, the frequency that this Sealing is changed is high especially, and not only disassemble and assemble work amount is very large, but also can not effectively solve at the scene leakage problems, therefore very large for normal oil producing operation impact.This situation is a great problem that restriction oil recovery is produced always for many years.

Summary of the invention

The technical problem to be solved in the present invention is to provide a kind of reducer sealing device with integrated abrasion compensation, sealing device can continuous effective the service wear gap of ground automatic compensation seal component, thereby extend working life of Sealing.

The technological scheme that the present invention proposes is: sealing device comprises flange body and be contained in the rubber seal in seam on flange body, and the slightly larger in diameter of described rubber seal upper-end surface is in lower end surface diameter, and its outer wall is tapered.On flange body, the annular inner wall face of seam also can be designed to taper, and its cone angle is slightly less than the cone angle in rubber seal.On the sidewall of described rubber seal, can also be provided with an inclined section opening.

The seal groove that has many rings on the described back segment of flange body taper seam and the hole wall of the running shaft section of cooperation, is provided with return port in the bottom of flange body hole wall.

Can also have in the upper-end surface of above-mentioned rubber seal the pressure ring groove that a section is wedge shape, circle pressure ring is contained between gland and pressure ring groove, the anchor ring of circle pressure ring bottom is arc or triangle, and the Extreme breadth in this section of ring cross section is slightly larger than the A/F of pressure ring groove.Described gland and circle pressure ring can also be integral type structure.

The invention has the beneficial effects as follows: sealing device can be realized the pressing effect between gland, pressure ring, cone rubber seal ring and taper seam by self structure, realize the lasting compensation of wearing and tearing, the reliability that ensures sealing, is utilized to the fullest seal ring.Test confirms can extend more than tens times compared with existing product its working life.Not only can reduce significantly the buying expenses of spare part, and reduce widely workman's labor intensity.More outstanding is to avoid the simple shutdown loss causing because changing Sealing completely, thereby the economic benefit producing is apparent.This seal arrangement can use on the speed reducer in various fields.

Brief description of the drawings

Below in conjunction with the drawings and specific embodiments, the present invention is described in detail

Fig. 1 is the utility model embodiment 1 structural representation

Fig. 2 is embodiment 2 structural representation

Fig. 3 is embodiment 3 structural representation

Fig. 4 is the cross-sectional configuration schematic diagram of rubber seal in embodiment 3

Fig. 5 is the cross-sectional configuration schematic diagram of circle pressure ring in embodiment 4

Fig. 6 is the cross-sectional configuration schematic diagram of circle pressure ring in embodiment 5

Fig. 7 is embodiment 6 structural representation

Fig. 8 is embodiment 7 structural representation

Number in the figure:

1, gland 2, circle pressure ring 3, rubber seal 4, flange body 5, seal groove

6, pressure ring groove 7, bolt 8, seam 9, axle rotation 10, return port

11, inclined section opening

Embodiment

Example 1

As shown in Figure 1, the design's seal arrangement comprises flange body 4 and is contained in the rubber seal 3 in seam 8 on flange body 4, and the outer wall of rubber seal 3 is tapered, and the slightly larger in diameter of its upper-end surface is in lower end surface diameter.On flange body 4, the annular inner wall face of seam 8 is also taper, and its cone angle is slightly less than the cone angle of rubber seal 3 outer walls.The seal groove 5 that has many rings on the back segment of flange body 4 taper seams 8 and the hole wall of running shaft 9 sections of cooperation, is provided with return port 10 in the bottom of flange body 4 hole walls.This design is particularly suitable for high, medium and low speed speed reducer.

Example 2

As shown in Figure 2, on the sidewall of the rubber seal 3 of above-mentioned seal arrangement, be provided with place's inclined section opening 11.Adopt this design can realize quick on-the-spot installation, have fabulous should be acute.

Example 3

Also have in the upper-end surface of above-mentioned rubber seal 3 the pressure ring groove 6 that a section is wedge shape, circle pressure ring 2 is contained between gland 1 and pressure ring groove 6, the bottom anchor ring of circle pressure ring 2 is circular arc, and the Extreme breadth of these circle pressure ring 2 sections is slightly larger than the A/F of pressure ring groove 6.See Fig. 3, Fig. 4.

Example 4

As shown in Figure 5, in this example, the bottom anchor ring of circle pressure ring 2 is oval, and this oval minor axis is slightly larger than the A/F of pressure ring groove 6.All the other are with example 1.

Example 5

As shown in Figure 6, in this example, the bottom anchor ring of circle pressure ring 2 is isosceles triangle, and the width on base is greater than the A/F of pressure ring groove 6.All the other are with example 1.

Example 6

As shown in Figure 7, on the rubber seal 3 of above-mentioned seal arrangement and the sidewall of circle pressure ring 2, be respectively provided with place's inclined section opening 11.

Example 7

As shown in Figure 8, in the design, gland 1 and circle pressure ring 2 are integral type structure.

Claims

1. one kind has the reducer sealing device of integrated abrasion compensation, comprise flange body and be contained in the rubber seal in flange body seam, it is characterized in that: the slightly larger in diameter of described rubber seal (3) upper-end surface is in lower end surface diameter, and its outer wall is tapered; The annular inner wall face of the upper seam (8) of flange body (4) is also taper, and the cone angle of this annular inner wall face is slightly less than the cone angle in rubber seal (3); The seal groove (5) that has many rings on the rear end of described flange body (4) taper seam (8) and the hole wall of running shaft (9) section of cooperation, is provided with return port (10) in the bottom of flange body (4) hole wall; Also have the pressure ring groove (6) that a section is wedge shape in the upper-end surface of above-mentioned rubber seal (3), circle pressure ring (2) is contained between gland (1) and pressure ring groove (6), the anchor ring of circle pressure ring (2) bottom is arc or triangle, and the Extreme breadth of circle pressure ring (2) section is slightly larger than the A/F of pressure ring groove (6); On the sidewall of described rubber seal (3) and circle pressure ring (2), be respectively provided with place's inclined section opening (11).

2. the reducer sealing device with integrated abrasion compensation according to claim 1, is characterized in that: described gland (1) and circle pressure ring (2) are integral type structure.