CN203906801U - Light mechanical sealing device for pump - Google Patents
Light mechanical sealing device for pump Download PDFInfo
- Publication number
- CN203906801U CN203906801U CN201420239364.0U CN201420239364U CN203906801U CN 203906801 U CN203906801 U CN 203906801U CN 201420239364 U CN201420239364 U CN 201420239364U CN 203906801 U CN203906801 U CN 203906801U
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- Prior art keywords
- ring
- spring seat
- rotating shaft
- spring
- rotating
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- Expired - Fee Related
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Abstract
The utility model provides a light mechanical sealing device for a pump, belongs to the technical field of sealing systems, and aims at solving the technical problems of complex structure and low precision of the existing mechanical sealing device. According to the technical scheme, the light mechanical sealing device for the pump comprises a rotating shaft; a dynamic ring, a spring seat and a static ring are sequentially arranged on the rotating shaft; a dynamic sealing ring is arranged between the dynamic ring and the rotating shaft, which is close to the dynamic ring and the rotating shaft; the front end of the dynamic ring is sunken in the radial direction to form a first step and a first cylindrical surface which are mutually vertical ; the spring seat is closely matched with the rotating shaft; the rear end of the spring seat is sunken in the radial direction to form a second step and a second cylindrical surface which are mutually vertical; a spring which sleeves the dynamic ring and the spring seat is arranged between a first radial platform and a second radial platform, wherein the inner wall of the spring is clung to the first cylindrical surface and the second cylindrical surface, and two ends of the spring are respectively arranged against the first step and the second step. The mechanical sealing structure is simple in structure, convenient to dismount and mount, and high in precision.
Description
Technical field
The utility model belongs to sealing system technical field, relates to a kind of pump light-duty machinery seal arrangement.
Background technique
Mechanical seal for pump belongs to one of machine foundation element that precision, structure are comparatively complicated, is the critical component of pump machines.Depend on many factors in its sealability and working life, as the precision of type selecting, machine, correct install and use etc.Mechanical seal for pump is of a great variety.Model is different, and its maintenance is to be also difficult to debate not and judgement.
For example, notice of authorization number discloses a kind of pump light container type mechanical sealing for the model utility of CN 2014696339 U, comprise the sealing axle sleeve being directly set on bearing, sealing axle sleeve liter is provided with band 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 bellows outside is provided with rotating ring skeleton, rotating ring skeleton all breaks and 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, although this mechanical seal device makes mechanical seal overall structure compacter, thereby the pressure decreased that each component are born, the impact that mechanical seal integral body is subject to is less, effectively extended the working life of mechanical seal, sealing effect is also relatively better, but also there are following problems in it simultaneously, 1, mechanical seal for pump is due to the defect of its severe working environment and machine self, the component loss of mechanical seal is larger, in work, be also easily damaged, and this mechanical seal component are more, structure is more complicated, dismounting bothers, the replacing of component and maintenance are all inconvenient, 2, due to complex structure, the precision of each component of mechanical seal when producing and install can reduce greatly, and the low precision between each component can cause the sealing effect of mechanical seal poor, and leakage phenomenon easily occurs in use in mechanical seal, 3, because component are more, it is produced and fabricating cost increases greatly, and the replacing of component and maintenance have also increased its follow-up cost, and its manufacturing efficiency is also lower.
Model utility content
The purpose of this utility model is the problems referred to above that exist for prior art, proposed a kind of simple in structure, precision is higher, good sealing effect, lower-cost pump light-duty machinery seal arrangement.
The purpose of this utility model can realize by following technical proposal: a kind of pump light-duty machinery seal arrangement, comprise rotating shaft, in described rotating shaft, be disposed with rotating ring, spring seat, stationary ring, described rotating ring rear end is affixed on stationary ring and can on stationary ring, rotates, on described rotating ring madial wall, laterally offer the first circular groove, in described the first circular groove, being provided with dynamic seal ring and dynamic seal ring is adjacent to rotating ring and rotating shaft respectively, rotating ring front end radial depressions is formed with orthogonal first step and the first cylndrical surface, described spring seat and rotating shaft drive fit, spring seat rear end radial depressions is formed with orthogonal second step and the second cylndrical surface, between the first radial platform and the second radial platform, be provided with spring, spring housing is located on rotating ring and spring seat and spring inwall is close on the first cylndrical surface and the second cylndrical surface, both ends of the spring is against respectively first step and second step, on described spring seat, be horizontally arranged with bath mat, described bath mat is fixedly connected with spring seat and spring seat end is pressed in rotating shaft, in described rotating shaft, also include housing, described stationary ring is arranged in housing, stationary ring outer side wall two ends offer respectively the second circular groove and annular breach, in described the second circular groove, be provided with the first static sealing ring, in described annular breach, be provided with the second static sealing ring, described the first static sealing ring and the second static sealing ring are adjacent to housing respectively.
At above-mentioned a kind of pump, use in light-duty machinery seal arrangement, between described rotating ring front-end face and the first cylndrical surface, be provided with the first chamfering, between described spring seat ear end face and the second cylndrical surface, be provided with the second chamfering, the angle of described the first chamfering and the second chamfering is 30 °.
Compared with prior art, the utlity model has following beneficial effect:
1, this mechanical seal device is mainly comprised of these component of rotating shaft, rotating ring, spring seat and stationary ring, in structure, is optimized, simpler, and dismounting is also more convenient, and replacing and the maintenance of component are more prone to, and have saved the plenty of time.
2, because component are less, component precision when producing and install is controlled preferably, and the low precision between each component is less, and the precision of mechanical seal integral body is higher, so the gap between each component is less, and the sealing effect of mechanical seal is also better.
3, due to simple in structure, the production of each component and the cost of assembling are less, and the user cost of mechanical seal and follow-up maintenance cost are also relatively little.
Accompanying drawing explanation
Fig. 1 is section package assembly schematic diagram of the present utility model.
Fig. 2 is the generalized section of rotating ring in the utility model.
Fig. 3 is the be hit by a bullet generalized section of spring abutment of the utility model.
Fig. 4 is the generalized section of stationary ring in the utility model.
In figure, 10, rotating shaft; 20, rotating ring; 21, first step; 22, the first cylndrical surface; 23, the first chamfering; 24, the first circular groove; 24a, dynamic seal ring; 30, spring seat; 31, second step; 32, the second cylndrical surface; 33, the second chamfering; 34, through hole; 35, bath mat; 36, hex screw; 40, spring; 50, stationary ring; 51, the second circular groove; 51a, the first static sealing ring; 52, annular breach; 52a, the second static sealing ring; 60, housing.
Embodiment
Be below specific embodiment of the utility model 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 Fig. 1, shown in Fig. 2, a kind of pump of the utility model light-duty machinery seal arrangement, comprise rotating shaft 10 and be installed on the rotating ring 20 in rotating shaft 10, spring seat 30, stationary ring 50, between described rotating ring 20 and rotating shaft 10, be provided with respectively and rotate with rotating shaft 10 with the two dynamic seal ring 24a being adjacent to and rotating ring 20, stationary ring 50 is static, rotating ring 20 rear ends are affixed on stationary ring 50 and on stationary ring 50 and rotate, rotating ring 20 front end radial depressions also make whole rotating ring 20 form stepped, rotating ring 20 front ends have orthogonal first step 21 and the first cylndrical surface 22, this spring seat 30 and rotating shaft 10 drive fits, these spring seat 30 rear end radial depressions also make whole spring seat 30 form with rotating ring 20 stepped accordingly, spring seat 30 has orthogonal second step 31 and the second cylndrical surface 32, described first step 21 is relative with second step 31, between first step 21 and second step 31, be provided with spring 40, this spring 40 is sheathed on respectively on rotating ring 20 and spring seat 30 and is affixed on the first cylndrical surface 22 and the second cylndrical surface 32, spring 40 two ends are against respectively first step 21 and second step 31.
This pump adopts said structure with light-duty machinery seal arrangement, it is mainly by rotating shaft 10, rotating ring 20, spring seat 30 and stationary ring 50 these component form, its component are less, in structure, be optimized, simpler, dismounting is also more convenient, replacing and the maintenance of component are more prone to, saved the plenty of time, and each component precision when producing and install is controlled preferably, low precision between each component is less, the precision of mechanical seal integral body is higher, therefore the gap between each component is less, the sealing effect of mechanical seal is also better, due to simple in structure, the production of each component and the cost of assembling are less, the user cost of mechanical seal and follow-up maintenance cost are also relatively little.
As shown in Figure 1, Figure 2, Figure 3 shows, between rotating ring 20 front-end faces and the first cylndrical surface 22, be provided with the first chamfering 23, between spring seat 30 ear end faces and the second cylndrical surface 32, be provided with the second chamfering 33, the setting of the first chamfering 23 and the second chamfering 33 not only can be removed the burr that rotating ring 20 and spring seat 30 produce in process of manufacture, also facilitate the assembling between spring 40 and rotating ring 20, spring seat 30, spring 40 is installed easier simultaneously.
Preferably, the angle of the first chamfering 23 and the second chamfering 33 is 30 °, so make distant between the first chamfering 23 and rotating ring 20 madial walls, the second chamfering 33 and spring seat 30 madial walls, make rotating ring 20 front-end face width, spring seat 30 ear end face width larger, when the first chamfering 23 and the second chamfering 33 are set, guarantee that rotating ring 20 is unaffected with the intensity of spring seat 30.
Further, on rotating ring 20 madial walls, laterally offer the first circular groove 24, described dynamic seal ring 24a is arranged in the first circular groove 24, in machine operation procedure, the situation that rotating shaft 10 there will be axis to jump, between rotating shaft 10 and rotating ring 20, can produce axial displacement, dynamic seal ring 24a can be leapt up out between rotating ring 20 and rotating shaft 10, lose its seal action, therefore dynamic seal ring 24a is arranged in the first circular groove 24, make dynamic seal ring 24a be positioned at all the time the first circular groove 24, guarantee the sealing effect between rotating ring 20 and rotating shaft 10.
Further, in spring seat 30 1 sides, laterally offer the through hole 34 through spring seat 30, in this through hole 34, bath mat 35 is installed, bath mat 35 front ends are pressed on rotating shaft 10 outer surfaces, between this bath mat 35 and spring seat 30, by hex screw 36, be fixedly connected with, certainly, also can connect by alternate manner, because being just affixed on all the time on stationary ring 50 and on stationary ring 50 under the elastic force effect of spring, rotating ring 20 rotates, and in mechanical seal working procedure, spring seat 30 is easy axial jump in rotating shaft 10, distance between spring seat 30 and rotating ring 20 is elongated, spring 40 loses the elastic force effect to rotating ring 20, now, rotating ring 20 is easily separated with stationary ring 50 in the situation that of inelastic effect, so just, there will be leakage, therefore bath mat 35 is installed on spring seat 30, and be pressed in rotating shaft 10, can effectively prevent spring seat 30 axial jump in rotating shaft 10, make spring seat 30 remain consistent with the distance between rotating ring 20, rotating ring 20 is contacted with stationary ring 50 all the time under elastic force effect, effectively prevented the generation of leakage situation.
As shown in Figure 1 and Figure 4, this pump also comprises housing 60 with light-duty machinery seal arrangement, this stationary ring 50 is positioned at housing 60, at the two ends of stationary ring 50 outer side walls, offer respectively the second circular groove 51 and annular breach 52, the first static sealing ring 51a is installed in the second circular groove 51, the second static sealing ring 52a is installed in annular breach 52, the first static sealing ring 51a and the second static sealing ring 52a are adjacent to rotating shaft 10 respectively, two static sealing rings are installed between stationary ring 50 and housing 60, this machinery is sealed in situation simple in structure, between stationary ring 50 and housing 60, there is double seal effect, and increased the frictional force between stationary ring 50 and housing 60, prevent stationary ring 50 axial jump on housing 60, cause occurring between stationary ring 50 and housing 60 situation of leakage.
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 modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (2)
1. a pump light-duty machinery seal arrangement, comprise rotating shaft, in described rotating shaft, be disposed with rotating ring, spring seat, stationary ring, described rotating ring rear end is affixed on stationary ring and can on stationary ring, rotates, it is characterized in that: on described rotating ring madial wall, laterally offer the first circular groove, in described the first circular groove, being provided with dynamic seal ring and dynamic seal ring is adjacent to rotating ring and rotating shaft respectively, rotating ring front end radial depressions is formed with orthogonal first step and the first cylndrical surface, described spring seat and rotating shaft drive fit, spring seat rear end radial depressions is formed with orthogonal second step and the second cylndrical surface, between the first radial platform and the second radial platform, be provided with spring, spring housing is located on rotating ring and spring seat and spring inwall is close on the first cylndrical surface and the second cylndrical surface, both ends of the spring is against respectively first step and second step, on described spring seat, be horizontally arranged with bath mat, described bath mat is fixedly connected with spring seat and spring seat end is pressed in rotating shaft, in described rotating shaft, also include housing, described stationary ring is arranged in housing, stationary ring outer side wall two ends offer respectively the second circular groove and annular breach, in described the second circular groove, be provided with the first static sealing ring, in described annular breach, be provided with the second static sealing ring, described the first static sealing ring and the second static sealing ring are adjacent to housing respectively.
2. a kind of pump light-duty machinery seal arrangement according to claim 1, it is characterized in that: between described rotating ring front-end face and the first cylndrical surface, be provided with the first chamfering, between described spring seat ear end face and the second cylndrical surface, be provided with the second chamfering, the angle of described the first chamfering and the second chamfering is 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420239364.0U CN203906801U (en) | 2014-05-09 | 2014-05-09 | Light mechanical sealing device for pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420239364.0U CN203906801U (en) | 2014-05-09 | 2014-05-09 | Light mechanical sealing device for pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203906801U true CN203906801U (en) | 2014-10-29 |
Family
ID=51781082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420239364.0U Expired - Fee Related CN203906801U (en) | 2014-05-09 | 2014-05-09 | Light mechanical sealing device for pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203906801U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195276A (en) * | 2016-07-15 | 2016-12-07 | 武汉船用机械有限责任公司 | Rotary sealing appts |
| CN106481819A (en) * | 2016-11-17 | 2017-03-08 | 胡炜平 | A kind of ultrashort packaging type machine envelope and its method of work |
| CN107387769A (en) * | 2017-07-26 | 2017-11-24 | 盐城润浩密封件科技有限公司 | A kind of mechanical sealing member with improved seal assembly |
| CN110206884A (en) * | 2019-06-06 | 2019-09-06 | 密友集团有限公司 | The mechanically-sealing apparatus being axially movable |
-
2014
- 2014-05-09 CN CN201420239364.0U patent/CN203906801U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195276A (en) * | 2016-07-15 | 2016-12-07 | 武汉船用机械有限责任公司 | Rotary sealing appts |
| CN106195276B (en) * | 2016-07-15 | 2018-09-25 | 武汉船用机械有限责任公司 | Rotary sealing appts |
| CN106481819A (en) * | 2016-11-17 | 2017-03-08 | 胡炜平 | A kind of ultrashort packaging type machine envelope and its method of work |
| CN107387769A (en) * | 2017-07-26 | 2017-11-24 | 盐城润浩密封件科技有限公司 | A kind of mechanical sealing member with improved seal assembly |
| CN110206884A (en) * | 2019-06-06 | 2019-09-06 | 密友集团有限公司 | The mechanically-sealing apparatus being axially movable |
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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: 20141029 Termination date: 20200509 |