CN204805548U - Mechanical seal device for pump - Google Patents
Mechanical seal device for pump Download PDFInfo
- Publication number
- CN204805548U CN204805548U CN201520417571.5U CN201520417571U CN204805548U CN 204805548 U CN204805548 U CN 204805548U CN 201520417571 U CN201520417571 U CN 201520417571U CN 204805548 U CN204805548 U CN 204805548U
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- China
- Prior art keywords
- rotating
- ring
- rotating shaft
- transmission circle
- mechanical seal
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- Expired - Fee Related
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- Mechanical Sealing (AREA)
Abstract
The utility model provides a mechanical seal device for pump belongs to mechanical seal technical field, it solved current mechanical seal structure complicated, be difficult for the technical problem that dismouting, machining precision expected much, a mechanical seal device for pump, which comprises a rotating shaft, be provided with quiet ring and rotating ring in the pivot, rotating ring one end is supported on quiet ring, still be provided with rotating seat and transmission circle in the pivot, the transmission circle links firmly with the pivot, the rotating seat front end links to each other with the rotating ring, first annular pit has been seted up to the rear end, the pivot surrounds that its surface is provided with the spring and the spring lies in annular concave console hole, spring one end is supported on first annular pit, the other end supports and circles in the transmission, the axial is provided with and tightly decides the board on one side of the transmission circle, it supports on the rotating seat tightly to decide the board, be provided with holding screw on tightly deciding the board, holding screw runs through tight decides the board with the transmission circle and to in the pivot, it structurally obtains optimizing, and the reduction of spare part makes the dismouting also more convenient, and the machining precision requires lowly.
Description
Technical field
The utility model belongs to sealing system technical field, relates to a kind of mechanical sealing device used for pump.
Background technique
Mechanical seal for pump belongs to one of accurate, that structure is comparatively complicated machine foundation element, is the critical component of pump machines.Its sealability and working life depend on many factors, as precision, correct the installing and using of type selecting, machine.Mechanical seal for pump is of a great variety, and model is different, and its maintenance is also difficult to debate not and judges.
Traditional mechanical sealing device used for pump, the model utility being CN2014696339U as Authorization Notice No. discloses a kind of pump light container type mechanical sealing, comprise the sealing axle sleeve be directly set on bearing, sealing axle sleeve is provided with rotating ring abrading block and stationary ring abrading block, the front end of rotating ring abrading block contacts with the rear end of stationary ring abrading block, rotating ring abrading block rear end is connected with rotating ring bellows, rotating ring skeleton is provided with outside rotating ring bellows, rotating ring skeleton is provided with spring attachment, described stationary ring abrading block front end is provided with stationary ring rubber skeleton, described stationary ring rubber skeleton is arranged on sealing axle sleeve, there are following problems in this mechanical seal device, 1, mechanical seal for pump is due to the defect of its severe working environment and machine self, its component loss is larger, fragile, and this mechanical seal component are more, structure is more complicated, dismounting comparatively bothers, the replacing of component and maintenance are all inconvenient, 2, due to complex structure, the required precision of each component when producing and install of mechanical seal is higher, in order to reduce the generation of substandard product, needing to use more high-precision process equipment, causing processing cost to increase, 3, because component are more, it is produced and fabricating cost increases greatly, and the replacing of component and maintenance too increase its follow-up cost, and its manufacturing efficiency is also lower.
In sum, in order to solve the technical problem that above-mentioned mechanical seal exists, need to design the mechanical sealing device used for pump that a kind of structure is simple, easy to assemble, requirement on machining accuracy is lower, cost of production is lower.
Model utility content
The purpose of this utility model is the problems referred to above existed for prior art, proposes the mechanical sealing device used for pump that a kind of structure is simple, easy to assemble, requirement on machining accuracy is lower, cost of production is lower.
The purpose of this utility model realizes by following technical proposal: a kind of mechanical sealing device used for pump, comprise rotating shaft, rotating shaft is provided with stationary ring and rotating ring, rotating ring one end is against on stationary ring, rotating shaft is also provided with rotating seat and transmission circle, transmission circle and rotating shaft are connected, rotating seat front end is connected with rotating ring, rear end offers the first circular pit, its outer surface is provided with spring in described rotating shaft and spring is positioned at the first annular concave platform hole, spring one end is against on the first circular pit, the other end is against on transmission circle, axially tightening plate is provided with in transmission circle side, tightening plate is against on rotating seat, tightening plate is provided with Cock screw, Cock screw runs through tightening plate and transmission circle and is against in rotating shaft.
In above-mentioned a kind of mechanical sealing device used for pump, described rotating seat comprises the annular seat board vertical with rotating shaft and the fixing lasso with shaft parallel, rotating ring is provided with the first annular boss, described rotating ring is against on annular seat board, and described fixing lasso and rotating ring outer surface are adjacent to and fixing lasso is against on the first annular boss.
In above-mentioned a kind of mechanical sealing device used for pump, one end adjacent with rotating seat at rotating ring offers the second circular pit, between the second circular pit and rotating shaft, be formed with circular groove, is provided with the dynamic seal ring of twisted rotary shaft in circular groove.
In above-mentioned a kind of mechanical sealing device used for pump, this device also comprises housing, and housing and stationary ring are connected, and stationary ring offers the second annular boss, the second annular boss is provided with static sealing ring and static sealing ring is against on housing.
Compared with prior art, the beneficial effects of the utility model are:
1, this mechanical seal device is primarily of the several component composition of rotating shaft, stationary ring, rotating ring, rotating seat and transmission circle, compare existing mechanical seal for pump, it is structurally optimized, overall cooperation is also compacter, the minimizing of component makes dismounting also more convenient, replacing and maintenance are more prone to, and save the plenty of time.
2, because component are less, the requirement on machining accuracy of component is lower, and the quality of fit between component requires also low, therefore, cost of production is lower, simultaneously, the production precision of component easily controls, and the low precision between each component is less, and the precision of mechanical seal entirety is higher.
3, because structure is simple, the production of each component and the cost of assembling less, the user cost of mechanical seal and follow-up maintenance cost are also relatively little.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the utility model one preferred embodiment.
Fig. 2 is the sectional drawing of rotating seat in the utility model one preferred embodiment.
Fig. 3 is the sectional drawing of rotating ring in the utility model one preferred embodiment.
In figure, 100, rotating shaft; 200, stationary ring; 210, the second annular boss; 211, static sealing ring; 300, rotating ring; 310, the first annular boss; 320, the second circular pit; 330, circular groove; 331, dynamic seal ring; 400, rotating seat; 410, annular seat board; 420, fixing lasso; 421, the first circular pit; 500, transmission circle; 510, tightening plate; 511, Cock screw; 600, spring; 700, housing; 710, fixed block.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1, a kind of mechanical sealing device used for pump, comprise rotating shaft 100, rotating shaft 100 is provided with stationary ring 210 and rotating ring 300, rotating ring 300 one end is against on stationary ring 210, rotating shaft 100 is also provided with rotating seat 400 and transmission circle 500, transmission circle 500 and rotating shaft 100 are connected, as shown in Figure 2, rotating seat 400 comprises the annular seat board 410 vertical with rotating shaft 100 and the fixing lasso 420 parallel with rotating shaft 100, fixing lasso 420 front end is connected with rotating ring 300 and rotating ring 300 is against on annular seat board 410 front-end face, fixing lasso 420 rear end offers the first circular pit 421, its outer surface is provided with spring 600 in described rotating shaft 100 and spring 600 is positioned at the first annular concave platform hole, spring 600 one end is against on the first circular pit 421, the other end is against on transmission circle 500, axially tightening plate 510 is provided with in transmission circle 500 side, tightening plate 510 is against on rotating seat 400, tightening plate 510 is provided with Cock screw 511, Cock screw 511 runs through tightening plate 510 and is against in rotating shaft 100 with transmission circle 500, contacted with rotating seat 400 by tightening plate 510, when transmission circle 500 rotates with rotating shaft 100, rotating seat 400 can be made with transmission circle 500 synchronous axial system.
Comparing traditional mechanical seal adopts spring seat to fix spring 600, herein, spring 600 to be directly installed in the first circular pit 421 and to be against on transmission circle 500, and component reduce to some extent, and installation coordinates simpler, but play due connection effect, meanwhile, traditional retainer compared by transmission circle 500, its structure is also simpler, on the whole, the structure of whole mechanical seal is optimized more, compact.
By the improvement to structure, the requirement on machining accuracy of each component of mechanical seal is decreased, therefore also low to the requirement of process equipment, cost of production obtains corresponding control.
As shown in Figure 1, Figure 3, rotating ring 300 is provided with the first annular boss 310, described fixing lasso 420 is adjacent to rotating ring 300 outer surface and fixing lasso 420 is against on the first annular boss 310, be adjacent to rotating ring 300 outer surface by fixing lasso 420, rotating seat 400 is connected closely with rotating ring 300, rotating ring 300 can servo-actuated ring seat 400 be rotated, realize the fundamental function of mechanical seal, and fixing lasso 420 is directly enclosed within rotating ring 300 outer surface, its Placement is simple, convenient, achieve the optimization of structure to greatest extent.
As improvement, the second circular pit 320 is offered in one end that rotating ring 300 is adjacent with rotating seat 400, circular groove 330 is formed between the second circular pit 320 and rotating shaft 100, the dynamic seal ring 331 of twisted rotary shaft 100 is provided with in circular groove 330, rotating ring 300 is against on annular seat board 410, circular groove 330 seals by this annular seat board 410, by installing dynamic seal ring 331, achieve sealing good between rotating ring 300 and rotating shaft 100, under the effect of spring 600, rotating ring 300 is against on the annular seat board 410 of rotating seat 400 all the time, ensure that the normal rotation of rotating ring 300, under the stop of annular seat board 410, dynamic seal ring 331 is avoided to leap up out circular groove 330.
As shown in Figure 1, this device also comprises housing 700, housing 700 and stationary ring 210 are connected by fixed block 710, stationary ring 210 offers the second annular boss 210, second annular boss 210 is provided with static sealing ring 211 and static sealing ring 211 is against on housing 700, the utility model is compared with traditional mechanical seal, eliminate stationary ring 210, directly the housing 700 of stationary ring 210 with pump is fixedly linked, achieve the optimization of structure equally, simultaneously, by offering the second annular boss 210 on stationary ring 210, static sealing ring 211 is arranged on the second annular boss 210, by the connection of stationary ring 210 with housing 700, static sealing ring 211 is pushed down, ensure that sealing good between stationary ring 210 and housing 700.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Claims (4)
1. a mechanical sealing device used for pump, comprise rotating shaft, rotating shaft is provided with stationary ring and rotating ring, rotating ring one end is against on stationary ring, it is characterized in that: in rotating shaft, be also provided with rotating seat and transmission circle, transmission circle and rotating shaft are connected, rotating seat front end is connected with rotating ring, rear end offers the first circular pit, its outer surface is provided with spring in described rotating shaft and spring is positioned at the first annular concave platform hole, spring one end is against on the first circular pit, the other end is against on transmission circle, axially tightening plate is provided with in transmission circle side, tightening plate is against on rotating seat, tightening plate is provided with Cock screw, Cock screw runs through tightening plate and transmission circle and is against in rotating shaft.
2. a kind of mechanical sealing device used for pump according to claim 1, it is characterized in that: described rotating seat comprises the annular seat board vertical with rotating shaft and the fixing lasso with shaft parallel, rotating ring is provided with the first annular boss, described rotating ring is against on annular seat board, and described fixing lasso and rotating ring outer surface are adjacent to and fixing lasso is against on the first annular boss.
3. a kind of mechanical sealing device used for pump according to claim 1, it is characterized in that: one end adjacent with rotating seat at rotating ring offers the second circular pit, between the second circular pit and rotating shaft, be formed with circular groove, in circular groove, be provided with the dynamic seal ring of twisted rotary shaft.
4. a kind of mechanical sealing device used for pump according to claim 1, it is characterized in that: this device also comprises housing, housing and stationary ring are connected, and stationary ring offers the second annular boss, the second annular boss are provided with static sealing ring and static sealing ring is against on housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520417571.5U CN204805548U (en) | 2015-06-17 | 2015-06-17 | Mechanical seal device for pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520417571.5U CN204805548U (en) | 2015-06-17 | 2015-06-17 | Mechanical seal device for pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204805548U true CN204805548U (en) | 2015-11-25 |
Family
ID=54590377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520417571.5U Expired - Fee Related CN204805548U (en) | 2015-06-17 | 2015-06-17 | Mechanical seal device for pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204805548U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989827A (en) * | 2015-06-17 | 2015-10-21 | 宁波东联密封件有限公司 | Mechanical sealing device for pump |
| CN107956878A (en) * | 2017-12-28 | 2018-04-24 | 温州市天成密封件制造有限公司 | Periphery wave V-shaped ring mechanical seal |
-
2015
- 2015-06-17 CN CN201520417571.5U patent/CN204805548U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989827A (en) * | 2015-06-17 | 2015-10-21 | 宁波东联密封件有限公司 | Mechanical sealing device for pump |
| CN107956878A (en) * | 2017-12-28 | 2018-04-24 | 温州市天成密封件制造有限公司 | Periphery wave V-shaped ring mechanical seal |
| CN107956878B (en) * | 2017-12-28 | 2024-02-02 | 温州市天成密封件制造有限公司 | Peripheral wave-shaped sealing ring mechanical seal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151125 Termination date: 20210617 |