CN202228680U - Basic shaft type mechanical sealing device - Google Patents
Basic shaft type mechanical sealing device Download PDFInfo
- Publication number
- CN202228680U CN202228680U CN2011203677400U CN201120367740U CN202228680U CN 202228680 U CN202228680 U CN 202228680U CN 2011203677400 U CN2011203677400 U CN 2011203677400U CN 201120367740 U CN201120367740 U CN 201120367740U CN 202228680 U CN202228680 U CN 202228680U
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- China
- Prior art keywords
- axle sleeve
- sealing
- shaft sleeve
- external
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a basic shaft type mechanical sealing device. The basic shaft type mechanical sealing device comprises a sealing seat, a compensation mechanism, a sealing shaft sleeve and a bearing which is sleeved in the sealing seat, wherein the sealing shaft sleeve is sleeved on the sealing seat through the compensation mechanism; an inner shaft sleeve and an outer shaft sleeve are also arranged in the sealing seat; the inner shaft sleeve is of an elastic structure and is sleeved on the outer shaft sleeve; the outer side wall of the inner shaft sleeve is in taper fit with the inner side wall of the outer shaft sleeve; the outer shaft sleeve is sleeved in the sealing seat through the bearing; and the sealing shaft sleeve is connected with the outer shaft sleeve through a driving pin. An equipment shaft is locked by using the inner shaft sleeve of the elastic structure in combination with the taper fit of the inner shaft sleeve and the outer shaft sleeve, such that zero clearance fit is formed between the equipment shaft and the inner shaft sleeve as well as between the inner shaft sleeve and the outer shaft sleeve, so that the inner shaft sleeve and the outer shaft sleeve are concentric with the equipment shaft, the bearing stress is stable, the running oscillating quantity of the equipment shaft is small, therefore, the service life of mechanical sealing is prolonged; in addition, the inner shaft sleeve and the outer shaft sleeve at the bearing end and the sealing shaft sleeve at the sealing end are separated from each other so as to achieve better sealing effects.
Description
Technical field
The utility model belongs to the mechanical seal field, particularly a kind of shaft bse system mechanical seal device that is used for rotating machinerys such as reaction kettle, stirrer.
Background technique
Mechanical seal on the rotating machinery such as reaction kettle, stirrer belongs to the precision height, baroque water-tight equipment; General value is than higher, and domestic this product is relatively backward at present, big machinery sealing and demanding occasion; Basically be to adopt the inlet seal product, because equipment such as reaction kettle, stirrers, contact is danger medium usually; The leakage meeting threatens to environment, even can cause major break down, so very high to seal request.The ubiquity of existing mechanical sealing in the market type selecting is difficult; The mechanical seal axle Analysis of Nested Design is an overall structure, because axle sleeve has certain fit up gap with axle, and bearing when operation; Gap in the axle sleeve is rotated with axle and is changed; Cause the swing of sealing surface, influence sealing effect, also reduce the working life of mechanical seal.
Summary of the invention
The purpose of the utility model is to consider the problems referred to above and a kind of shaft bse system mechanical seal device of stable, good sealing effect is provided.
In order to arrive above-mentioned purpose; The technological scheme that the utility model adopts is: a kind of shaft bse system mechanical seal device, comprise sealing seat, compensation mechanism and sealing axle sleeve, and wherein sealing axle sleeve is sleeved on the sealing seat through compensation mechanism; Also be provided with internal axle sleeve and external axle sleeve in the sealing seat; Said internal axle sleeve is an elastic structure, and internal axle sleeve is sleeved on the external axle sleeve, the outer side wall of internal axle sleeve and external axle sleeve madial wall taper fit.
Further, above-mentioned external axle sleeve is contained in the sealing seat through bearing housing.
Above-mentioned internal axle sleeve is the elastic structure that sidewall is provided with breach, and the internal axle sleeve sidewall is provided with some breach, and some breach evenly are located on the sidewall of internal axle sleeve.
The outside that above-mentioned internal axle sleeve is provided with breach is provided with external conical sleeve, the madial wall of external axle sleeve be provided with internal axle sleeve on external conical sleeve have the inner conical drogue of identical tapering, internal axle sleeve matches with inner conical drogue through external conical sleeve and is sleeved on the external axle sleeve.
Further, a wherein end of above-mentioned external axle sleeve also is provided with bulge loop, and bulge loop is provided with drive pin, and sealing axle sleeve is connected with external axle sleeve through drive pin.
Above-mentioned compensation mechanism comprises stationary ring and rotating ring, and stationary ring and rotating ring are set on the envelope sealing axle sleeve, also is provided with anti-stop ring and sealing axle sleeve first locating piece in relative rotation between above-mentioned rotating ring and the sealing axle sleeve; Be provided with between stationary ring and the sealing seat and prevent stationary ring and sealing seat second locating piece in relative rotation.
In order to make sealing axle sleeve and equipment axis concentric automatically; Above-mentioned sealing axle sleeve inwall also is provided with first seal ring; First seal ring also plays seal action simultaneously; Further guarantee sealing effect, also be provided with second seal ring between above-mentioned stationary ring and the sealing seat, be provided with the 3rd seal ring between rotating ring and the sealing axle sleeve.
Further, above-mentioned sealing seat is provided with bearing cap at that end that is provided with bearing; Also be provided with screw thread on the sidewall of above-mentioned breach; Internal axle sleeve also is provided with tightening nut being provided with on the sidewall of screw thread, in this programme, when tightening nut is locked; Make the relative external axle sleeve of internal axle sleeve produce axial displacement; Since the exterior and interior axle sleeves cone match, thus make internal axle sleeve that equipment axis and external axle sleeve is locked, reach the assembling of no gap.
The utility model adopts the internal axle sleeve of elastic structure, in conjunction with outer, internal axle sleeve taper fit locking equipment axle, causes equipment axis to be no gap with internal axle sleeve, internal axle sleeve with external axle sleeve and cooperates; Guarantee that internal axle sleeve and external axle sleeve are all concentric with equipment axis, shaft strength is stable, and equipment axis operation oscillating quantity is little; Improved the working life of mechanical seal; In addition, the exterior and interior axle sleeves of bearing end and the sealing axle sleeve of sealed end are independent separately, are independent of each other; Sealing axle sleeve utilizes seal ring concentric with equipment axis automatically, thereby reaches better sealing effect.
Description of drawings
Fig. 1 is the structure sectional view of the utility model.
Embodiment
Embodiment
The shaft bse system mechanical seal device structural representation of the utility model is shown in accompanying drawing 1; Comprise sealing seat 1, compensation mechanism 2,3,2 bearings 4 of sealing axle sleeve; 2 bearings 4 alignment bosses respectively are contained in the sealing seat 1, and sealing axle sleeve 3 is sleeved on the sealing seat 1 through compensation mechanism 2, also are provided with internal axle sleeve 5 and external axle sleeve 6 in the sealing seat 1; Internal axle sleeve 5 is for evenly being provided with the elastic structure of several breach 51 on the sidewall; The outside that internal axle sleeve 5 is provided with breach 51 is provided with external conical sleeve 52, on the sidewall of establishing breach 51, also is provided with screw thread, is with tightening nut 53 on the screw thread; Internal axle sleeve 5 is sleeved on the external axle sleeve 6; Wherein the madial wall of external axle sleeve 6 be provided with internal axle sleeve 5 on external conical sleeve 52 have the inner conical drogue 61 of identical tapering, internal axle sleeve 5 matches with inner conical drogue 61 through external conical sleeve 52 and is sleeved on the external axle sleeve 6, external axle sleeve 6 is sleeved in the sealing seat 1 through 2 bearings 4.
In the present embodiment, a wherein end outer wall of above-mentioned external axle sleeve 6 also is provided with bulge loop 62, evenly is provided with 4 drive pins 63 on the bulge loop 62; Drive pin 63 radially assembles; Sealing axle sleeve 3 is connected with external axle sleeve 6 through drive pin 63, and drive pin 63 is that assemble in the gap with sealing axle sleeve 3, so sealing axle sleeve 3 and external axle sleeve 6 can relative displacements; Drive pin 63 can also prevent to break away from each other because sealing axle sleeve 3 with external axle sleeve 6 relative displacement is arranged except that playing driving action.
Above-mentioned sealing axle sleeve 3 inwalls also are provided with first seal ring 31; First seal ring 31 of present embodiment has two; Parallel sleeve is at the diverse location of sealing axle sleeve 3 inwalls respectively; After equipment axis was put in the sealing axle sleeve 3, sealing axle sleeve was concentric with equipment axis automatically, and first seal ring 31 yet plays seal action simultaneously.
Above-mentioned compensation mechanism 2 comprises stationary ring 21 and rotating ring 22, and stationary ring 21 is set on the envelope sealing axle sleeve 3 with rotating ring 22, and also is provided with anti-stop ring 22 and sealing axle sleeve 3 first locating piece in relative rotation between rotating ring 22 and the sealing axle sleeve 3; Be provided with between stationary ring 21 and the sealing seat 1 and prevent stationary ring 21 and sealing seat 1 second locating piece in relative rotation, wherein also be provided with second seal ring 7 between stationary ring 21 and the sealing seat 1, be provided with the 3rd seal ring 8 between rotating ring 22 and the sealing axle sleeve 3.
In the present embodiment; Above-mentioned sealing seat 1 is provided with water conservancy diversion cover 9 at that end that is provided with sealing axle sleeve 3, and mechanical seal can be cooled off and lubricate it as required, and cooling or Lubricants form the circulation shape around sealing axle sleeve 3; Seal face is not produced impact force; If need not cool off and lubricate, can water conservancy diversion be overlapped 9 and remove, sealing seat 1 the other end is provided with bearing cap 10.
When the utility model is installed, be enclosed within mechanical seal device on the equipment axis earlier, with screw in compression sealing seat 1; Then through locking tightening nut 53; Make internal axle sleeve 5 produce axial displacement, under the tapering effect of internal axle sleeve 5 and external axle sleeve 6,, accomplish and install equipment axis locking.
Claims (10)
1. shaft bse system mechanical seal device; Comprise sealing seat (1), compensation mechanism (2) and sealing axle sleeve (3), sealing axle sleeve (3) is sleeved on the sealing seat (1) through compensation mechanism (2), it is characterized in that; Also be provided with internal axle sleeve (5) and external axle sleeve (6) in the sealing seat (1); Said internal axle sleeve (5) is an elastic structure, and internal axle sleeve (5) is sleeved on the external axle sleeve (6), the outer side wall of internal axle sleeve (5) and external axle sleeve (6) madial wall taper fit.
2. shaft bse system mechanical seal device according to claim 1 is characterized in that, said external axle sleeve (6) is sleeved in the sealing seat (1) through bearing (4).
3. shaft bse system mechanical seal device according to claim 1 is characterized in that, said internal axle sleeve (5) is provided with the elastic structure of breach (51) for sidewall.
4. shaft bse system mechanical seal device according to claim 3 is characterized in that, said internal axle sleeve (5) sidewall is provided with some breach (51), and some breach (51) evenly are located on the sidewall of internal axle sleeve (5).
5. shaft bse system mechanical seal device according to claim 4; It is characterized in that; The outside that said internal axle sleeve (5) is provided with breach (51) is provided with external conical sleeve (52); The madial wall of external axle sleeve (6) be provided with internal axle sleeve (5) on external conical sleeve (52) have the inner conical drogue (61) of identical tapering, internal axle sleeve (5) matches with inner conical drogue (61) through external conical sleeve (52) and is sleeved on the external axle sleeve (6).
6. shaft bse system mechanical seal device according to claim 5; It is characterized in that; A wherein end of said external axle sleeve (6) also is provided with bulge loop (62), and bulge loop (62) is provided with drive pin (63), and sealing axle sleeve (3) is connected with external axle sleeve (6) through drive pin (63).
7. according to each described shaft bse system mechanical seal device of claim 1 to 6, it is characterized in that said compensation mechanism (2) comprises stationary ring (21) and rotating ring (22), stationary ring (21) and rotating ring (22) are set on the envelope sealing axle sleeve (3).
8. shaft bse system mechanical seal device according to claim 7 is characterized in that, also is provided with anti-stop ring (22) and sealing axle sleeve (3) first locating piece in relative rotation between said rotating ring (22) and the sealing axle sleeve (3); Be provided with between stationary ring (21) and the sealing seat (1) and prevent stationary ring (21) and sealing seat (1) second locating piece in relative rotation.
9. shaft bse system mechanical seal device according to claim 8; It is characterized in that; Said; Said sealing axle sleeve (3) inwall also is provided with first seal ring (31), also is provided with second seal ring (7) between stationary ring (21) and the sealing seat (1), is provided with the 3rd seal ring (8) between rotating ring (22) and the sealing axle sleeve (3).
10. shaft bse system mechanical seal device according to claim 9 is characterized in that, said sealing seat (1) is provided with bearing cap (10) at that end that is provided with bearing (4); Also be provided with screw thread on the sidewall of said breach (51), internal axle sleeve (5) also is provided with tightening nut (53) being provided with on the sidewall of screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203677400U CN202228680U (en) | 2010-09-30 | 2011-09-29 | Basic shaft type mechanical sealing device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020553232.7 | 2010-09-30 | ||
| CN201020553232 | 2010-09-30 | ||
| CN2011203677400U CN202228680U (en) | 2010-09-30 | 2011-09-29 | Basic shaft type mechanical sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202228680U true CN202228680U (en) | 2012-05-23 |
Family
ID=46079266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203677400U Expired - Lifetime CN202228680U (en) | 2010-09-30 | 2011-09-29 | Basic shaft type mechanical sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202228680U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134961A (en) * | 2015-09-28 | 2015-12-09 | 平湖市海特合金有限公司 | Cleaning machine mechanical seal structure |
| CN111810643A (en) * | 2020-07-22 | 2020-10-23 | 广东博智林机器人有限公司 | Axial sealing structure for liquid medium |
-
2011
- 2011-09-29 CN CN2011203677400U patent/CN202228680U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134961A (en) * | 2015-09-28 | 2015-12-09 | 平湖市海特合金有限公司 | Cleaning machine mechanical seal structure |
| CN111810643A (en) * | 2020-07-22 | 2020-10-23 | 广东博智林机器人有限公司 | Axial sealing structure for liquid medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120523 |