Box-type mechanical sealing part
A mechanical seal, box-type technology, applied in the direction of engine seals, mechanical equipment, engine components, etc., can solve the problems of difficult assembly of rotating seal rings, mechanical seal cost, inability to seal end face normal contact, deformation, etc.
Inactive Publication Date: 2013-09-25
NIPPON PILLAR PACKING CO LTD
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Problems solved by technology
[0006] However, the rotary seal ring formed by thermocompression fitting of the seal ring main body and the seal ring holder will be deformed on the sealing end surface formed by the end face of the seal ring main body through thermocompression fitting, and cannot be in normal contact with the sealing end surface of the stationary seal ring. , can not play a good sealing function through the relative rotation and sliding contact of the two sealing end faces
In addition, shrink fit requires highly skilled operators, difficulty in assembling the rotary seal ring (connection of the seal ring main body and the seal ring holder), and the cost of manufacturing mechanical seals.
Method used
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[0022] Below, according to Figure 1 ~ Figure 4 Specific embodiments of the present invention will be described in detail.
[0023] Figure 1 ~ Figure 4 It is a figure showing an example of the cassette type mechanical seal of the present invention, figure 1 is a longitudinal section side view showing the operating state, figure 2In order to show that the mechanical seal has been assembled to the rotating equipment and figure 1 The corresponding longitudinal section side view, image 3 Indicates the state of the mechanical seal in the middle of assembly to the rotating equipment and figure 1 The corresponding longitudinal section side view, Figure 4 Shown for magnification figure 1 Detailed drawing of the main part.
[0024] figure 1 The mechanical seal shown is assembled between the shaft seal box 1 of the rotating equipment (pumps, blowers, compressors, turbines, mixers, etc.) On the other hand, the end face contact mechanical seal configured to shield and sea...
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A box-type mechanical sealing part of the present invention can easily perform assembling operation and maintaining operation to rotary equipment. The box-type mechanical sealing part consists of a static side sealing component (3), a rotary side sealing component (4), and a connecting member (5) for temporarily connecting the two sealing components (3, 4) into a form which is the same as a using form of the mechanical sealing part. The mechanical sealing part has the static side sealing component (3), an installation box (6), and a static sealing ring (7) fixedly maintained at an internal periphery thereof. The rotary side sealing component (4) has a sleeve (13), a sleeve fixing member (14) for fixing the sleeve on a rotary shaft (2), a spring maintaining part (15) arranged on the sleeve (13), a rotary sealing ring (16) capable of being embedded and maintained on the sleeve (13) in a moving way along an axis direction with an O-shaped sealing ring (17) therebetween, a spring component (18) for pushing the rotary sealing ring (16) towards the static sealing ring (7), and a rotary preventing member (19) for allowing the rotary sealing ring (16) to move along the axis direction and preventing the rotary sealing ring (16) from rotating relative to the sleeve (13).
Description
technical field [0001] The present invention relates to a cassette-type mechanical seal, which is a mechanical seal installed as a shaft seal member in rotating equipment such as production pumps (Japanese: プロセスポンプ), blowers, compressors, turbines, or mixers. It can be assembled to and disassembled from the rotating equipment very easily. Background technique [0002] In general, the mechanical seal consists of a stationary side sealing element installed on the shaft seal box of the rotating equipment (the installation box installed on the shaft seal box and the stationary seal ring fixed on it, etc.), and the The rotating side seal element on the rotating shaft passing through the shaft seal box (the sleeve inserted and fixed in the rotating shaft, and the annular sealing member such as an O-ring seal are fitted and held in the sleeve so as to be movable in the axial direction. The rotary seal ring on the barrel, and the spring member that pushes the rotary seal ring towar...
Claims
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IPC IPC(8): F16J15/16F16J15/54
Inventor 藤永繁行奥西泰之
Owner NIPPON PILLAR PACKING CO LTD