Mechanical seal
A technology of mechanical seals and side seals, which is applied in the direction of engine seals, mechanical equipment, engine components, etc., can solve the problems of unfavorable miniaturization, time-consuming replacement operations, etc., and achieve the effect of simple structure, easy adjustment, and fewer parts
Active Publication Date: 2015-05-06
EAGLE INDS
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Problems solved by technology
Therefore, the split type mechanical seal of the prior art is not conducive to miniaturization, and sometimes the space for installing the gland gasket cannot be used for replacement
That is, when the distance between the stuffing box and the bearing box is narrow, when replacing it with this kind of mechanical seal, it is sometimes necessary to disassemble the bearing box, and the replacement work is time-consuming.
Method used
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[0077] In the mechanical seal 17 of the above-described embodiment, the second mounting plate 86 has the same shape as the first mounting plate 78 , but the shape of the second mounting plate 86 is not limited thereto. For example, in other embodiments of the mechanical seal, use such as Figure 7A second mounting plate 186 is shown. The aspect ratio of the second mounting plate 186 Figure 5 The illustrated first mounting plate 78 (same shape as the second mounting plate 86 ) has a simple shape, but can exert the same function and effect as the second mounting plate 86 . In addition, in the mechanical seal 17 of the above-described embodiment, the end portion of the stud bolt 11 on the equipment inner member 10 side is fixed to the equipment inner member 10 , and the stud bolt 11 to which the stationary side case 18 is attached extends from the equipment inner member 10 toward the machine inner member 10 . The device outer member 14 protrudes sideways. However, the install...
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Disclosed is a mechanical seal which can be suitably attached as a replacement for gland packing. The mechanical seal comprises: a mounting shaft (11) extending in an axial direction between an internal member (10) and an external member (14); a stationary-side case (18) adjoining the internal member; a stationary-side clamp ring (26) attached to the outer surface of the stationary-side case so as to be encircled thereby; a stationary-side divided seal ring (34) attached to the stationary-side case via a first packing (32), equipped with a stationary-side sliding surface (36) formed on the distal end thereof on the external member side; a divided rotating-side case (56) fixed to a rotating shaft (16); and a rotating-side clamp ring (66) attached to the outer surface of the rotating-side case so as to be encircled thereby; and a divided rotating-side seal ring (44) attached to the rotating-side case via a second packing (54), equipped with a rotating-side sliding surface (46) formed on the distal end on a stuffing box side. Therein, the stationary-side case is fixed with respect to the mounting shaft.
Description
technical field [0001] The invention relates to a mechanical seal which can be replaced with a gland packing. Background technique [0002] For reasons such as improving durability and meeting environmental requirements, it may be necessary to replace the gland gasket with a mechanical seal. As a mechanical seal suitable for replacing the gland gasket with a mechanical seal, a mechanical seal having a split seal ring whose sealing surface is divided into two or more pieces has been proposed (for example, refer to Patent Document 1 Wait). If the split type seal ring is used, the gland gasket can be replaced with a mechanical seal without dismantling the bearing housing or the like to disconnect the shaft. [0003] However, in the conventional split type mechanical seal, since it is an inner type mechanical seal, it is necessary to provide a housing for accommodating the seal ring. Therefore, the split type mechanical seal of the prior art is not conducive to miniaturizatio...
Claims
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IPC IPC(8): F16J15/34
CPCF16J15/344F16J15/3464
Inventor 高桥秀和
Owner EAGLE INDS