CN203963022U - A kind of mechanical sealing device of silicon carbide - Google Patents
A kind of mechanical sealing device of silicon carbide Download PDFInfo
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- CN203963022U CN203963022U CN201420436885.5U CN201420436885U CN203963022U CN 203963022 U CN203963022 U CN 203963022U CN 201420436885 U CN201420436885 U CN 201420436885U CN 203963022 U CN203963022 U CN 203963022U
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- axle sleeve
- rotating ring
- ring
- gland
- spring seat
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Abstract
The utility model discloses a kind of mechanical sealing device of silicon carbide, comprise driving ring (1), gland (2), stationary ring (3), rotating ring (4), spring (5) and axle sleeve (6), it is interior also fixing that one end of described axle sleeve (6) is located at a stomidium of driving ring (1), between the outer wall of the inwall of described gland (2) and axle sleeve (6), be provided with spring seat (8), described spring seat (8) is circumferentially spacing with gland (2), between the outer wall of the inwall of described spring seat (8) and axle sleeve (6), be provided with gap and be provided with both sealing gaskets (9) of sealing between the two, described axle sleeve (6) is spacing with rotating ring (4) circumferential and axial, the other end end of described axle sleeve (6) is provided with bearing support (10).This mechanical seal device shortens the axial length of mechanical seal greatly, number of spare parts is few, and cost is low, avoid the improper movement of rotating ring, thereby makes rotating ring and sealing gasket avoid separated, guarantees sealing effect.
Description
Technical field
The utility model relates to mechanical sealing technology field, is specifically a kind of mechanical sealing device of silicon carbide.
Background technique
Existing a mechanical seal device, comprise stationary ring, rotating ring, rotating seat, gland, spring, spring seat and axle sleeve, described stationary ring is fixed on a section of gland, described gland is located at outside axle sleeve, between described stationary ring and axle sleeve, be provided with stationary ring cover, described rotating ring is fixed on one end of rotating seat, the seal face of described rotating ring and the seal face of stationary ring are close together under the effect of spring, described rotating seat is located at outside axle sleeve, described spring is located at outside axle sleeve, one end and the rotating seat of described spring offset, the other end offsets with the spring seat being fixed on outside axle sleeve, between the other end of described rotating ring and the inner bottom surface of rotating seat, be provided with seal ring, between the outer wall of described stationary ring and the inwall of gland, be provided with seal ring.
Moving ring assembly in this mechanism rotates along with the rotation of axle, and stationary ring and rotating ring form sealing flour milling, forms liquid film and realize inner and extraneous mechanical seal in sealing flour milling, avoids extraneous working medium to leak into inside.
The mechanical seal device of above prior art has the following disadvantages: 1, because stationary ring and rotating ring are to be realized and being close to by conventional helical spring, because needs provide enough elastic force, make like this spring need enough length, thereby cause the axial length of whole mechanical seal longer; 2, the outside that is provided in a side of stationary ring due to spring, needs spring seat to carry out supported spring, and spring can not directly contact with rotating ring, but need to increase a rotating seat, have like this spring seat, rotating seat all to increase the axial length of whole mechanical seal, and number of spare parts is many, cost is high.
Also there is at present the wavy spring of employing to replace helical spring mechanical seal device, original rotating seat and spring seat have been cancelled simultaneously, solved so to a certain extent the larger problem of the axial length of mechanical seal, but still there is following shortcoming: cancelled after original rotating seat and spring seat, rotating ring moves and compresses to static components under the pressure of medium, after arriving certain thrust pusher dynamic and static ring, move and push wavy spring, thereby make rotating ring separated with sealing gasket, and make seal failure, cause whole mechanical seal to be lost efficacy.
Model utility content
Technical problem to be solved in the utility model is, provide a kind of and greatly shorten the axial length of mechanical seal, number of spare parts is few, cost is low, avoid the improper movement of rotating ring, thereby makes rotating ring and sealing gasket avoid separated, guarantees the mechanical sealing device of silicon carbide of sealing effect.
Technological scheme to be solved in the utility model is, a kind of mechanical sealing device of silicon carbide with following structure providing, comprise driving ring, gland, stationary ring, rotating ring, spring and axle sleeve, it is interior also fixing that one end of described axle sleeve is located at a stomidium of driving ring, described gland is located at outside axle sleeve, between one end end face of described gland and the step surface of driving ring, be provided with pad, between the inwall of described gland and the outer wall of axle sleeve, be provided with spring seat, described spring seat and gland are circumferentially spacing, between the inwall of described spring seat and the outer wall of axle sleeve, be provided with gap, described stationary ring is located at outside axle sleeve, the inwall of described stationary ring and and the outer wall of axle sleeve between be provided with gap, described spring is wavy spring, described spring is located at the upper of spring seat, and the step surface of one end and spring seat offsets, the end face of the other end and stationary ring offsets, the seal face of described stationary ring and the seal face of rotating ring are close to, described rotating ring is located at outside axle sleeve, and is provided with both sealing gaskets of sealing, the annular flange that the other end of described axle sleeve is provided with outward and rotating ring is wrapped between the two, described axle sleeve and rotating ring circumferential and axial are spacing, and the other end end of described axle sleeve is provided with bearing support.
Described axle sleeve and rotating ring be spacing referring to circumferentially, and the outer wall of described rotating ring is provided with several pits, and the inwall of the annular flange of described axle sleeve is provided with the projection can be one by one embedding mutually with pit.
Described axle sleeve and rotating ring axial limiting refer to, one section of the outer wall of described rotating ring is conical surface, and the end of the annular flange of described axle sleeve is provided with the inside annular bending edges of the conical surface of being close to rotating ring.
Described sealing gasket is stepped ramp type, the outer wall close-fitting of the inwall of the cylindrical section of described sealing gasket and axle sleeve, the inwall close-fitting of the outer wall of the cylindrical section of described sealing gasket and rotating ring, the interior edge face of the step of described sealing gasket and the end face of rotating ring are close to, and the interior edge face of the exterior edge face of the step of described sealing gasket and the annular flange of axle sleeve is close to.
Described spring seat and gland be spacing referring to circumferentially, and the sidewall of described spring seat is provided with a breach, is positioned at the fixture block of a bending on the spring seat of breach, and the endoporus step end face of described gland is provided with the hole embedding for fixture block.
Adopt after above structure, a kind of mechanical sealing device of silicon carbide of the utility model compared with prior art, has the following advantages: because described spring is wavy spring; Described spring is located at the upper of spring seat, and the step surface of one end and spring seat offsets, and the end face of the other end and stationary ring offsets, and by the layout again of wavy spring, can greatly shorten the axial length of mechanical seal like this; Reduce rotating seat simultaneously, reduced amount of parts; Again because described rotating ring is located at outside axle sleeve, and be provided with both sealing gaskets of sealing between the two, the annular flange that the other end of described axle sleeve is provided with outward and rotating ring is wrapped, described axle sleeve and rotating ring circumferential and axial are spacing, like this to rotating ring carry out spacing after, avoid rotating ring to static components, to move and compress under the pressure of medium, arrive after certain thrust pusher dynamic and static ring and move and do not push wavy spring, thereby rotating ring and sealing gasket are close to all the time, and guarantee to seal, do not lose efficacy, caused the sealing of whole mechanical seal.Between one end end face of described gland and the step surface of driving ring, be provided with pad, driving ring, when rotating, makes pad pray buffer function between the driving ring rotating and static gland like this, prevents that driving ring from directly going gland to contact.The other end end due to described axle sleeve is provided with bearing support again, after using installation bearing, avoids the exterior edge face of axle sleeve directly contact with bearing and wear and tear.
As improvement, described axle sleeve and rotating ring be spacing referring to circumferentially, the outer wall of described rotating ring is provided with several pits, and the inwall of the annular flange of described axle sleeve is provided with the projection can be one by one embedding mutually with pit, and processing is simple, exterior line processing pit at rotating ring, assembling type, the annular flange punching press to axle sleeve, is that the projection of depression is embedded in pit and just can realizes, processing is simple like this, and good limit effect.
As improvement, described axle sleeve and rotating ring axial limiting refer to, one section of the outer wall of described rotating ring is conical surface, the end of the annular flange of described axle sleeve is provided with the inside annular bending edges of the conical surface of being close to rotating ring, wraps up effectively, and anti-stop ring axially and mobile, and saved original rotating seat, save component, reduce costs, and easy to assembly.
As improvement, described sealing gasket is stepped ramp type, the outer wall close-fitting of the inwall of the cylindrical section of described sealing gasket and axle sleeve, the inwall close-fitting of the outer wall of the cylindrical section of described sealing gasket and rotating ring, the interior edge face of the step of described sealing gasket and the end face of rotating ring are close to, the interior edge face of the exterior edge face of the step of described sealing gasket and the annular flange of axle sleeve is close to, sealing gasket can make the sealing axially and radially between rotating ring and axle sleeve simultaneously like this, save original need to distinguish between independent moving sealing ring and axle sleeve axially and radially, reduced part, reduce costs and installation time.
As improvement, described spring seat and gland be spacing referring to circumferentially, the sidewall of described spring seat is provided with a breach, be positioned at the fixture block of a bending on the spring seat of breach, the endoporus step end face of described gland is provided with the hole embedding for fixture block, and circumferential so spacing convenience, avoids using the circumferentially spacing of other bearing pin again, reduced part, reduced costs and installation time.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of a kind of mechanical sealing device of silicon carbide of the present utility model.
Accompanying drawing 2 is spring seat structure schematic diagram of a kind of mechanical sealing device of silicon carbide of the present utility model.
Accompanying drawing 3 is A-A generalized sections of Fig. 2.
Accompanying drawing 4 is axle sleeve structure schematic diagram of a kind of mechanical sealing device of silicon carbide of the present utility model.
Accompanying drawing 5 is B-B generalized sections of Fig. 4.
Accompanying drawing 6 is movable ring structure schematic diagram of a kind of mechanical sealing device of silicon carbide of the present utility model.
Accompanying drawing 7 is that schematic diagram is looked on the right side of Fig. 6.
Shown in figure: 1, driving ring, 2, gland, 3, stationary ring, 4, rotating ring, 5, spring, 6, axle sleeve, 6.1, annular flange, 6.1.1, projection, 7, pad, 8, spring seat, 8.1, breach, 8.2, fixture block, 9, sealing gasket, 10, bearing support.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, shown in Fig. 7, a kind of mechanical sealing device of silicon carbide that the utility model provides, comprise driving ring 1, gland 2, stationary ring 3, rotating ring 4, spring 5 and axle sleeve 6, it is characterized in that: it is interior also fixing that one end of described axle sleeve 6 is located at a stomidium of driving ring 1, described gland 2 is located at outside axle sleeve 6, between one end end face of described gland 2 and the step surface of driving ring 1, be provided with pad 7, between the outer wall of the inwall of described gland 2 and axle sleeve 6, be provided with spring seat 8, described spring seat 8 is circumferentially spacing with gland 2, between the outer wall of the inwall of described spring seat 8 and axle sleeve 6, be provided with gap, described stationary ring 3 is located at outside axle sleeve 6, the inwall of described stationary ring 3 and and the outer wall of axle sleeve 6 between be provided with gap, described spring 5 is wavy spring, described spring 5 is located at the upper of spring seat 8, and the step surface of one end and spring seat 8 offsets, the end face of the other end and stationary ring 3 offsets, the seal face of the seal face of described stationary ring 3 and rotating ring 4 is close to, described rotating ring 4 is located at outside axle sleeve 6, and is provided with both sealing gaskets 9 of sealing, the annular flange 6.1 that the other end of described axle sleeve 6 is provided with outward and rotating ring 4 is wrapped between the two, described axle sleeve 6 is spacing with rotating ring 4 circumferential and axial, and the other end end of described axle sleeve 6 is provided with bearing support 10.
Described axle sleeve 6 and circumferential spacing the referring to of rotating ring 4, the outer wall of described rotating ring 4 is provided with several pits 4.1, the inwall of the annular flange 6.1 of described axle sleeve 6 is provided with the projection 6.1.1 can be one by one embedding mutually with pit 4.1, and when assembling, each projection 6.1.1 is all embedded in corresponding pit 4.1.
Described axle sleeve 6 refers to rotating ring 4 axial limitings, one section of the outer wall of described rotating ring 4 is conical surface, the end of the annular flange 6.1 of described axle sleeve 6 is provided with the inside annular bending edges of the conical surface of being close to rotating ring 4, namely the end of annular flange 6.1 is provided with inside interior reducing, thereby wraps one end of rotating ring 4.
Described sealing gasket 9 is stepped ramp type, the outer wall close-fitting of the inwall of the cylindrical section of described sealing gasket 9 and axle sleeve 6, the inwall close-fitting of the outer wall of the cylindrical section of described sealing gasket 9 and rotating ring 4, the end face of the interior edge face of the step of described sealing gasket 9 and rotating ring 4 is close to, and the interior edge face of the annular flange 6.1 of the exterior edge face of the step of described sealing gasket 9 and axle sleeve 6 is close to.
Described spring seat 8 and circumferential spacing the referring to of gland 2, the sidewall of described spring seat 8 is provided with a breach 8.1, is positioned at the fixture block 8.2 of a bending on the spring seat 8 of breach 8.1, and the endoporus step end face of described gland 2 is provided with the hole for fixture block 8.2 embeddings.
Claims (5)
1. a mechanical sealing device of silicon carbide, comprise driving ring (1), gland (2), stationary ring (3), rotating ring (4), spring (5) and axle sleeve (6), it is characterized in that: it is interior also fixing that one end of described axle sleeve (6) is located at a stomidium of driving ring (1), described gland (2) is located at outside axle sleeve (6), between the step surface of one end end face of described gland (2) and driving ring (1), be provided with pad (7), between the outer wall of the inwall of described gland (2) and axle sleeve (6), be provided with spring seat (8), described spring seat (8) is circumferentially spacing with gland (2), between the outer wall of the inwall of described spring seat (8) and axle sleeve (6), be provided with gap, described stationary ring (3) is located at outside axle sleeve (6), the inwall of described stationary ring (3) and and the outer wall of axle sleeve (6) between be provided with gap, described spring (5) is wavy spring, described spring (5) is located at the upper of spring seat (8), and the step surface of one end and spring seat (8) offsets, the end face of the other end and stationary ring (3) offsets, the seal face of the seal face of described stationary ring (3) and rotating ring (4) is close to, described rotating ring (4) is located at outside axle sleeve (6), and be provided with both sealing gaskets (9) of sealing between the two, the annular flange (6.1) that the other end of described axle sleeve (6) is provided with outward and rotating ring (4) is wrapped, described axle sleeve (6) is spacing with rotating ring (4) circumferential and axial, the other end end of described axle sleeve (6) is provided with bearing support (10).
2. mechanical sealing device of silicon carbide according to claim 1, it is characterized in that: described axle sleeve (6) and circumferential spacing the referring to of rotating ring (4), the outer wall of described rotating ring (4) is provided with several pits (4.1), and the inwall of the annular flange (6.1) of described axle sleeve (6) is provided with the projection (6.1.1) can be one by one embedding mutually with pit (4.1).
3. mechanical sealing device of silicon carbide according to claim 1, it is characterized in that: described axle sleeve (6) refers to rotating ring (4) axial limiting, one section of the outer wall of described rotating ring (4) is conical surface, and the end of the annular flange (6.1) of described axle sleeve (6) is provided with the inside annular bending edges of the conical surface of being close to rotating ring (4).
4. mechanical sealing device of silicon carbide according to claim 1, it is characterized in that: described sealing gasket (9) is stepped ramp type, the outer wall close-fitting of the inwall of the cylindrical section of described sealing gasket (9) and axle sleeve (6), the inwall close-fitting of the outer wall of the cylindrical section of described sealing gasket (9) and rotating ring (4), the end face of the interior edge face of the step of described sealing gasket (9) and rotating ring (4) is close to, and the interior edge face of the annular flange (6.1) of the exterior edge face of the step of described sealing gasket (9) and axle sleeve (6) is close to.
5. mechanical sealing device of silicon carbide according to claim 1, it is characterized in that: described spring seat (8) and circumferential spacing the referring to of gland (2), the sidewall of described spring seat (8) is provided with a breach (8.1), be positioned at the fixture block (8.2) of the upper bending of spring seat (8) of breach (8.1), the endoporus step end face of described gland (2) is provided with the hole embedding for fixture block (8.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420436885.5U CN203963022U (en) | 2014-08-04 | 2014-08-04 | A kind of mechanical sealing device of silicon carbide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420436885.5U CN203963022U (en) | 2014-08-04 | 2014-08-04 | A kind of mechanical sealing device of silicon carbide |
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| Publication Number | Publication Date |
|---|---|
| CN203963022U true CN203963022U (en) | 2014-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420436885.5U Active CN203963022U (en) | 2014-08-04 | 2014-08-04 | A kind of mechanical sealing device of silicon carbide |
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| CN (1) | CN203963022U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132143A (en) * | 2014-08-04 | 2014-11-05 | 宁波伏尔肯机械密封件制造有限公司 | Silicon carbide mechanical seal device |
-
2014
- 2014-08-04 CN CN201420436885.5U patent/CN203963022U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132143A (en) * | 2014-08-04 | 2014-11-05 | 宁波伏尔肯机械密封件制造有限公司 | Silicon carbide mechanical seal device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315104 Jin Yuan Road, Yinzhou investment and business center, Zhejiang, Ningbo, China, No. 666 Patentee after: Ningbo fu'erken Ceramic Technology Co. Ltd. Address before: 315104 Jin Yuan Road, Yinzhou investment and business center, Zhejiang, Ningbo, China, No. 666 Patentee before: Ningbo Vulcan Mechanical Seals Manufacturing Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315104 Jin Yuan Road, Yinzhou investment and entrepreneurship center, Ningbo, Zhejiang 666 Patentee after: Ningbo Vulcan Polytron Technologies Inc Address before: 315104 Jin Yuan Road, Yinzhou investment and entrepreneurship center, Ningbo, Zhejiang 666 Patentee before: Ningbo fu'erken Ceramic Technology Co. Ltd. |