Wolfratshausen, Germany
Wolfratshausen, Germany

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Provided are a set screw, a fixing structure, a fixing method and a sealing structure that can reduce an exposed amount of a set screw and prevent the set screw from coming off a female thread. A fixing structure for fixing a first member 20 in which a female thread 21 is formed and a second member 30 which is provided to be slidable with respect to the first member 20, and in which a through-hole 31 is formed that has a diameter smaller than an inner diameter of the female thread 21, is characterized in that the second member 30 is positioned with respect to the first member 20 in a state in which center axes of the female thread 21 and the through-hole 31 coincide with each other, the male thread of the set screw 10 is engaged in the female thread 21, and the small diameter portion 13 is inserted into the through-hole 31, whereby the first member 20 and the second member 30 are fixed to each other.


Patent
Eagle Industry Co. and EagleBurgmann | Date: 2015-07-22

A mechanical seal having a seal cover that has a high versatility and is less prone to deformation even when secured to a housing by two bolts is provided. A mechanical seal 100 includes a rotating ring 40, a stationary ring 20, and a seal cover 10 to attach the stationary ring 20 to a housing 300. The seal cover 10 includes two U-shaped grooves 11 and two elongate holes 12 for bolting, which are disposed alternately and at regular intervals in a circumferential direction of the shaft hole, and elongate holes 12 are elongate in a radial direction of the shaft hole and innermost positions within the elongate holes 12 where bolt shanks can pass through are located further inward than innermost positions within the U-shaped grooves 11 where bolt shanks can pass through.


Patent
EagleBurgmann | Date: 2016-02-17

Provided is a mechanical seal that has an improved accuracy of positioning a plurality of divided bodies that compose a seal ring. A mechanical seal (100) for sealing an annular gap between a rotary shaft (500) and a housing (600), comprising: a divided-type seal ring that is an annular seal ring composed by combining a plurality of divided bodies; is characterized by comprising metallic bands (231, 331) that fix the plurality of divided bodies by clamping outer peripheral surfaces of the plurality of divided bodies.


Patent
EagleBurgmann | Date: 2015-02-12

The present invention relates to a mechanical seal arrangement, comprising a rotating slide ring and a stationary slide ring, which define a sealing gap between them, and a delivery device for delivering a fluid, wherein the delivery device comprises a sleeve-like basic body with first through-openings and second through-openings, wherein the delivery device rotates jointly with the rotating slide ring, wherein the first through-openings each have a first entry region on an outer periphery of the sleeve-like basic body and a first exit region on an inner periphery of the sleeve-like basic body, and wherein the second through-openings each have a second entry region on the inner periphery of the sleeve-like basic body and a second exit region on the outer periphery of the sleeve-like basic body.


Patent
EagleBurgmann | Date: 2016-12-21

A first annular member 210 mounted to a housing 600 and a second annular member 310 mounted to an outer periphery of a rotating shaft 500 are configured to be capable of being fixed to each other by a coupling member 400 such that each of a stationary ring 220 and a rotating ring 320 which is configured annularly by combining a plurality of divided bodies is held between the first annular member 210 and the second annular member 310 in an axial direction in a state in which a sliding sealing surface is formed, and a state in which positioning of the first annular member 210, the stationary ring 220, the rotating ring 320, and the second annular member 310 in the axial direction and positioning of the first annular member 210 and the second annular member 310 in a circumferential direction are completed is maintained.


Patent
EagleBurgmann | Date: 2016-05-04

Provided is a sealing device which includes a pumping ring capable of increasing the flow amount of the fluid to be self-circulated, and thereby increasing the head. The pumping ring (160) includes: a through hole (161) that is provided so as to pass through the pumping ring (160) from an inner peripheral surface to an outer peripheral surface and serves as a passage of the fluid; and an inlet groove (162) that is provided on the inner peripheral surface so as to run from a side face on a side where the mechanical seal (M) is disposed to the through hole (161), and leads the fluid into the through hole (161), and on an outer peripheral surface of the sleeve (110), an auxiliary inlet groove (111) that leads the fluid into the through hole (161) is provided at a position opposing the inlet groove (162) and the through hole (161).


Patent
EagleBurgmann | Date: 2015-08-26

{Technical Problem} Provide a bellows seal that prevents damage, due to shrink-fitting, to the stationary seal ring which is positioned on the inner periphery side of the seal cover via a bellows in a manner freely movable in the axial direction, while preventing stress-induced damage to the bellows and improving the sealing performance at the same time. {Solution to Problem} The bellows seal is characterized by having a bellows 11 installed on the inner periphery side of the seal cover 3 between a seal cover 3 and first seal ring 8 in a manner freely extendable/contractible in the axial direction, as well as a spring 13 installed on the inner periphery side of the seal cover 3 to bias the first seal ring 8 in the direction of the second seal ring 9, wherein the first seal ring 8 is hermetically coupled by a lap joint to the end face of a retainer 12 fixed to the bellows 11, and the first seal ring 8 and retainer 12 are installed on the seal cover 3 side in a manner prevented from turning by a knock pin 17.


Patent
EagleBurgmann | Date: 2015-02-09

A first annular member 210 mounted to a housing 600 and a second annular member 310 mounted to an outer periphery of a rotating shaft 500 are configured to be capable of being fixed to each other by a coupling member 400 such that each of a stationary ring 220 and a rotating ring 320 which is configured annularly by combining a plurality of divided bodies is held between the first annular member 210 and the second annular member 310 in an axial direction in a state in which a sliding sealing surface is formed, and a state in which positioning of the first annular member 210, the stationary ring 220, the rotating ring 320, and the second annular member 310 in the axial direction and positioning of the first annular member 210 and the second annular member 310 in a circumferential direction are completed is maintained.


Patent
EagleBurgmann and Eagle Industry Co. | Date: 2015-07-08

A mechanical seal device 1 comprises a seal case 30 attached to the device main body, a rotary seal ring 60 attached to the rotary shaft 100, a stationary seal ring 50 arranged in an axial direction opposing to the rotary seal ring 60, and a bellows 40 attached extendably in the axial direction between the stationary seal ring 50 and the seal case 30. A static pressure fluid supplying hole 56, supplying a static pressure fluid to a static pressure fluid chamber C arranged at an inner circumferential side of the bellows, is formed on the seal case 30. A communication hole, guiding the static pressure fluid of the static pressure fluid chamber C to sealing surfaces between the stationary seal ring 50 and the rotary seal ring 60 is formed on the stationary seal ring 50. The sealed fluid is arranged at an outer circumferential side of the bellows 40.


Patent
Eagle Industry Co. and EagleBurgmann | Date: 2015-04-08

{Technical Problem} Provide a mechanical seal that allows for preassembly of its seal members on the stationary side, baffle sleeve, damper, and other related parts at a factory, service center, etc., in a reliable and controlled manner, thereby requiring fewer assembly steps during onsite engineering works. {Solution to Problem} The mechanical seal has a seal ring 9 and a mating ring 10 that faces and slides against the seal ring 9 and either the seal ring 9 or mating ring 10 is supported via a bellows 7 on the equipment interior side of a seal cover 2 installed on a housing 1, while the other rotates together with a rotational shaft 3; and a baffle sleeve 17 or 37 with a roughly L-shaped cross-section is fixed on the equipment exterior side of the seal cover 2 to guide quenching liquid to the sliding surfaces of the seal ring 9 and mating ring 10, where the baffle sleeve 17 or 37 is structurally split into a flange part 21 or 38 and cylinder part 22 or 38.

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