CN202732975U - Mechanical seal body - Google Patents
Mechanical seal body Download PDFInfo
- Publication number
- CN202732975U CN202732975U CN 201220324823 CN201220324823U CN202732975U CN 202732975 U CN202732975 U CN 202732975U CN 201220324823 CN201220324823 CN 201220324823 CN 201220324823 U CN201220324823 U CN 201220324823U CN 202732975 U CN202732975 U CN 202732975U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- ring
- seal ring
- work piece
- periphery
- 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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- Mechanical Sealing (AREA)
Abstract
The utility model provides a mechanical seal body which can prevent a sleeve and a locator from being damaged. The mechanical seal body (1) comprises a static sealing ring (3) fixed on the side of a shell (C), a sleeve (4) which can be arranged in integral and rotatable mode on a rotating shaft (S) penetrating the shell (C), a transmission lantern ring (5) which can be arranged on the periphery of the sleeve (4) in integral and rotatable mode, a rotating sealing ring (6) which is in linkage with the transmission lantern ring (5), can be arranged on the periphery of the sleeve (4) in integral and rotatable mode and contacts with the static sealing ring (3) in sliding mode, and a flexible component (7) which applies stress on the transmission lantern ring (5) in the axial direction to enable the rotating sealing ring (6) to be compressed tightly on the static sealing ring (3). A ring-shaped locator (8) maintaining the flexible component (7) is integrally formed on the periphery of the sleeve (4).
Description
Technical field
The utility model relates to a kind of mechanical seal body.
Background technique
Mostly come at present the sealed fluid of seal rotary fluid device inside with the mechanical seal body, wherein, described mechanical seal body comprises the stationary seal ring that is fixed in shell side and the rotating seal ring that is installed on rotation shaft side, is formed at the Stationary side seal face and the rotation side sealing end face sliding contact (for example with reference to patent documentation 1) that is formed at rotating seal ring of stationary seal ring.As so known mechanical seal body, as shown in Figure 4, sleeve 101 is embedded in running shaft 100 outward and fixes, and the transmission collar 103 of rotating seal ring 102, ring-type and positioning work piece 104 are installed on an axial end of the periphery of this sleeve 101.
Rotating seal ring 102 and the transmission collar 103 axially are being slidably mounted on sleeve 101.The transmission collar 103 is connected with positioning work piece 104 by not shown driving pin (drive pin).But positioning work piece 104 one are installed on running shaft 100 rotatably, are used for keep-spring 106.Spring 106 to 103 reinforcings of the transmission collar, is pressed in stationary seal ring 107 with the seal face 102a of rotating seal ring 102 axially.
Be formed with the screw 104a that radially connects in an axial end of positioning work piece 104, set screw (lock screw) 108 screws togather with this screw 104a, and positioning work piece 104 is fixed in sleeve 101.Inner peripheral surface in the described axial end of sleeve 101 is formed with annular slot 101a, and the O type ring 109 between the inner peripheral surface of the outer circumferential face of sealing rotary rotating shaft 100 and sleeve 101 is installed on this annular slot 101a.
The prior art document
Patent documentation
Patent documentation 1: Unexamined Patent 9-4721 communique
The model utility content
In the mechanical seal body of above-mentioned prior art, owing to being formed with the radial thickness attenuation at position of the annular slot 101a of sleeve 101, therefore, when tightening set screw 108, the outer circumferential face of its front end clamp sleeve 101, so that the thin-walled position of the annular slot 101a of sleeve 101 is distorted, sleeve 101 is impaired.
Because positioning work piece 104 is disposed at the narrow space between sleeve 101 and the shell 110, therefore, can not increase the radial thickness of positioning work piece 104.So in positioning work piece 104, strain in the position of the screw 104a of positioning work piece 104 via the driving pin repeated action in the slip torque of sleeve 101 and the transmission collar 103, positioning work piece 104 is impaired.
The utility model is finished in view of the above problems, and its purpose is to provide a kind of can suppress sleeve and the impaired mechanical seal body of positioning work piece.
For the mechanical seal body of the present utility model that achieves the above object is characterised in that, comprising: stationary seal ring, it is fixed in shell side; Sleeve, but its one is installed on the running shaft that connects described shell rotatably; The transmission collar, but its one is installed on the periphery of described sleeve rotatably; Rotating seal ring, itself and the described transmission collar link, but one is installed on the periphery of described sleeve rotatably, with described stationary seal ring sliding contact; Elastic member, it is axially afterburning to the described transmission collar, thereby described rotating seal ring is pressed in described stationary seal ring.Wherein, the periphery at described sleeve is formed with the ring-type positioning work piece that keeps described elastic member.
According to the utility model, owing to being formed with the ring-type positioning work piece in the periphery of sleeve, therefore, need not resembling and form screw at positioning work piece the prior art, wherein be used for positioning work piece is fixed in set screw and this screwhole spiro bonding of sleeve.Therefore, compared with prior art, can improve the intensity of positioning work piece, can suppress positioning work piece impaired.Because need not be as prior art, with the outer circumferential face of the set screw clamp sleeve of described screwhole spiro bonding, therefore, can suppress the sleeve that brings owing to this compression impaired.And, form as one by making sleeve and positioning work piece, reduced the parts number of packages, therefore easily carry out the assembling of mechanical seal body.
According to mechanical seal body of the present utility model, sleeve can be suppressed and positioning work piece is impaired.
Description of drawings
Fig. 1 is the longitudinal section of the mechanical seal body of an expression mode of execution of the present utility model;
(a) among Fig. 2 is the stereogram of the transmission collar in the above-mentioned mechanical seal body of expression, (b) is the stereogram of other mode of execution of the expression transmission collar;
Fig. 3 is the longitudinal section of the part of the transmission collar that comprises the mechanical seal body of other mode of execution and positioning work piece;
Fig. 4 is the longitudinal section of vitals of the mechanical seal body of expression prior art.
Description of reference numerals
1 mechanical seal body
3 stationary seal rings
4 sleeves
The 5 transmission collars
6 rotating seal rings
7 elastic members
8 positioning work pieces
The C shell
The S running shaft
Embodiment
Below with reference to the accompanying drawings the mode of execution of mechanical seal body of the present utility model is described.
Fig. 1 is the longitudinal section of the mechanical seal body of an expression mode of execution of the present utility model.In Fig. 1, this mechanical seal body 1 is as the gland seal device of the rotating fluid equipment such as process pump, blower, gas compressor, turbine, stirrer, between the shell C that is disposed at rotating fluid equipment and the running shaft S of the opening c1 of this shell of perforation C.In this manual, the left side of Fig. 1 is the equipment outside, and the right side of Fig. 1 is that equipment is inboard.
As shown in Figure 1, mechanical seal body 1 has as the annular seal shell 2 that is fixed in shell C of Stationary side unit and is embedded in the inner peripheral surface of sealing shell 2 and fixing ring-type stationary seal ring 3.Bight in the equipment inboard in interior week of can 2 is formed with stepped part 21.Be formed with for the flash distillation hole 22 that the flash distillation fluid is supplied in the can 2 at can 2.
Stationary seal ring 3 is take carbon or other material as the parts of main component, is formed with Stationary side sealing surface 3a in the end of its equipment inboard.Be formed with annular slot 3b at 2 axial places on the periphery of stationary seal ring 3, the O type ring 15,16 between the inner peripheral surface of sealing and can 2 is disposed at respectively each annular slot 3b. O type ring 15,16 and O type ring 17,18 described later all use the good fluorine rubber elastomeric material of corrosion stability and form.
But mechanical seal body 1 has the sleeve 4 that is installed on rotatably running shaft S as the one of rotation side unit; But one is installed on the endless drive collar 5 of the periphery of sleeve 4 rotatably; With 5 interlocks of the transmission collar, but one is installed on the ring-type rotating seal ring 6 of the periphery of sleeve 4 rotatably; To a plurality of elastic members 7 of the equipment outside to 5 reinforcings of the transmission collar; And the positioning work piece 8 that keeps these elastic members 7.
End outside the equipment of sleeve 4 disposes baffle ring 9.Baffle ring 9 is by the 1st chimeric ring portion 91 of the outer circumferential face of inner peripheral surface and running shaft S; And the equipment that is integrally formed at the 1st ring portion 91 is inboard, and the 2nd chimeric ring portion 92 of the outer circumferential face of inner peripheral surface and sleeve 4 consists of.The inner peripheral surface of the 1st ring portion 91 is more given prominence to the inside side of radius vector the end face butt in the end face 91b of the equipment inboard of the 1st ring portion 91 and the equipment of sleeve 4 outside than the inner peripheral surface of the 2nd ring portion 92.
The 1st screw 91a that a plurality of (being in the present embodiment 6) radially connect circumferentially is being formed at the 1st ring portion 91 every certain intervals.Set screw (lock screw) 11 and the 1st screw 91a screw togather, and by tightening this set screw 11, make its front end compress the outer circumferential face of running shaft S.
The 2nd screw 92a that a plurality of (being in the present embodiment 3) radially connect circumferentially is being formed at the 2nd ring portion 92 every certain intervals.Set screw (lock screw) 12 and the 2nd screw 92a screw togather, and by tightening this set screw 12, make the outer circumferential face of its front end clamp sleeve 4.
As mentioned above, by baffle ring 9 and set screw 11,12 sleeve 4 is firmly fixed at running shaft S.
Rotating seal ring 6 is for example formed by the SiC of wear resistance and favorable sealing property, can be installed on axially slidably the outer circumferential face of sleeve 4.Be formed with the rotation side sealing face 6a with the Stationary side sealing surface 3a sliding contact of stationary seal ring 3 in the end in the equipment of rotating seal ring 6 outside.The flash distillation fluid that sliding contact position between Stationary side sealing surface 3a and the rotation side sealing face 6a is supplied with by the 2nd 22b of hole section from flash distillation hole 22 cools off and is lubricated.
Rotating seal ring 6 be formed with annular slot 6b interior week, the O type ring 18 between the outer circumferential face of sealing and sleeve 4 is disposed at this annular slot 6b.A plurality of (being in the present embodiment 3) recess 6c is in the periphery that circumferentially is formed at rotating seal ring 6 every certain intervals.
(a) among Fig. 2 is the stereogram of the expression transmission collar 5.In Fig. 1, the transmission collar 5 can be installed on the outer circumferential face of sleeve 4 axially slidably.With reference to (a) among Fig. 2, a plurality of (being in the present embodiment 3) to the equipment outside outstanding transmission of torque with jut 5a at the circumferential radial outside that is formed at the transmission collar 5 every certain intervals.Each transmission of torque engages with each recess 6c of rotating seal ring 6 respectively with jut 5a.
One end of a plurality of (being in the present embodiment 3) driving pin 13 is individually fixed in the transmission collar 5.Particularly, the screw 5b that a plurality of (being in the present embodiment 3) axially connect circumferentially is being formed at the transmission collar 5 every certain intervals, and the male screw section 13a that is formed at an end of each driving pin 13 screws togather with each screw 5b respectively.
In Fig. 1, positioning work piece 8 forms ring-type, is integrally formed at the periphery of end of the equipment inboard of sleeve 4.The edge circumferentially is formed with a plurality of (being in the present embodiment 12) to the 1st retaining hole 8a that the end is arranged of the end face opening of its equipment inboard every certain intervals on positioning work piece 8.Described elastic member 7 is held in the 1st retaining hole 8a with the state that is inserted into the 1st retaining hole 8a.Elastic member 7 is for example formed by compression helical spring, the end face butt of the end in its equipment outside and the equipment inboard of the transmission collar 5.Thus, it is afterburning to the equipment outside that the transmission collar 5 utilizes the elastic force of elastic member 7.
The edge circumferentially is formed with a plurality of (being in the present embodiment 3) to the 2nd retaining hole 8b that the end is arranged of the end face opening of its equipment inboard every certain intervals on positioning work piece 8.The other end of described driving pin 13 can be held in the 2nd retaining hole 8b with the state that is inserted into the 2nd retaining hole 8b with axially moving freely.
According to above structure, the driving torque that the transmission collar 5 is accepted from positioning work piece 8 via driving pin 13 makes rotating seal ring 6 rotary actuations via transmission of torque with jut 5a, the transmission collar 5 and rotating seal ring 6 and the rotation of running shaft S one.At this moment, the transmission collar 5 can move axially under the maintained state in ground by driving pin 13 and positioning work piece 8, utilizes 7 pairs of equipment outsides of elastic member afterburning.Thus, the rotation side sealing face 6a of rotating seal ring 6 under the state of the Stationary side sealing surface 3a that is pressed in stationary seal ring 3 with certain pressure with the Stationary side sealing surface 3a sliding contact of stationary seal ring 3, thereby form shaft seal section.
For making mechanical seal body 1 can easily be assembled in the rotating fluid equipment, with the mounting jaw 19 of suitable quantity shown in dotted lines in Figure 1 and the end face butt of can 2, and engage with the groove 4b of the outer circumferential face that is arranged at sleeve 4, can be installed on assembling set in the shell C with the integrated state of integral body thereby form.After being installed, mechanical seal 1 pulls down mounting jaw 19.
The utility model is not limited to above-mentioned mode of execution.For example, can also be as shown in Figure 3, the internal diameter that makes the transmission collar 5 is to a certain extent greater than the external diameter of sleeve 4, thereby between the periphery of interior week of the transmission collar 5 and sleeve 4, clearance G is set, and shown in (b) among Fig. 2, the surface outside the equipment of the transmission collar 5 arranges a plurality of (being in the present embodiment 6) radially as the through slot 5c that makes the radial passage that all sides are communicated with outer circumferential side in it.
By the transmission collar 5 being arranged clearance G and through slot 5c, as shown in Figure 3, during the transmission collar 5 rotation, utilize pumping (pumping) effect to produce flowing of fluid take clearance G and through slot 5c as path.Thus, even contain particulate in the sealed fluid, particulate also can the outer direction of radius vector be discharged rapidly, can suppress O type ring 18 peripheries that particulate is deposited in the annular slot 6b that is arranged at rotating seal ring 6.Therefore, can prevent that particulate is to the dysgenic unfavorable condition of the mobile generation of following of rotating seal ring 6.
The through hole 8c that connects to sealed fluid mass can also be set at the diapire of the 1st retaining hole 8a of positioning work piece 8.
By positioning work piece 8 is arranged through hole 8c, as shown in Figure 3, even when containing particulate in the sealed fluid, the particulate that enters the 1st retaining hole 8a also can promptly be discharged to the equipment inboard, can suppress particulate and be deposited in elastic member 7 peripheries that insert the 1st retaining hole 8a.Therefore, can prevent that particulate from producing dysgenic unfavorable condition to the action of elastic member 7.
The structures that represented in the above-described embodiment to make rotating seal ring 6 directly to engage with the transmission collar 5 still, also can be to make the rotating seal ring 6 indirect structures that engage with the transmission collar 5 by rotational positioner etc.The number of elastic member 7 and driving pin 13 can be according to the purposes of mechanical seal body 1 and employed condition and Set arbitrarily.Therefore, the number that is formed at the 1st retaining hole 8a of positioning work piece 8 and the 2nd retaining hole 8b also can be respectively according to the number of elastic member 7 and driving pin 13 and Set arbitrarily.
Claims (1)
1. a mechanical seal body is characterized in that, comprising:
Stationary seal ring, it is fixed on shell side;
Sleeve, but its one is installed on the running shaft that connects described shell rotatably;
The transmission collar, but its one is installed on the periphery of described sleeve rotatably;
Rotating seal ring, itself and the described transmission collar link, but one is installed on the periphery of described sleeve rotatably, with described stationary seal ring sliding contact; And
Elastic member, it is axially afterburning to the described transmission collar, thereby described rotating seal ring is pressed in described stationary seal ring,
Wherein, the periphery at described sleeve is formed with the ring-type positioning work piece that keeps described elastic member.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-041319 | 2012-02-28 | ||
| JP2012041319A JP2013177914A (en) | 2012-02-28 | 2012-02-28 | Mechanical seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202732975U true CN202732975U (en) | 2013-02-13 |
Family
ID=47658676
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220324823 Expired - Lifetime CN202732975U (en) | 2012-02-28 | 2012-07-05 | Mechanical seal body |
| CN 201210232663 Pending CN103291934A (en) | 2012-02-28 | 2012-07-05 | Mechanical seal body |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210232663 Pending CN103291934A (en) | 2012-02-28 | 2012-07-05 | Mechanical seal body |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2013177914A (en) |
| CN (2) | CN202732975U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256391A (en) * | 2013-06-01 | 2013-08-21 | 四川日机密封件股份有限公司 | Self-adaptation sealing-type mechanical sealing device |
| CN104565382A (en) * | 2015-01-12 | 2015-04-29 | 芜湖市中天密封件有限公司 | High pressure mechanical sealing part of high injection pump |
| CN105283700A (en) * | 2013-04-24 | 2016-01-27 | 伊格尔博格曼德国有限公司 | Slide ring seal with accurately positioned binding |
| CN105492808A (en) * | 2013-07-05 | 2016-04-13 | 费斯托股份有限两合公司 | Valve |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103848383B (en) * | 2014-02-19 | 2015-10-07 | 江苏新美星包装机械股份有限公司 | A kind of Beverage filling machine distributing box |
| JP6190293B2 (en) * | 2014-03-10 | 2017-08-30 | 株式会社神戸製鋼所 | Oil-free screw compressor |
| CN104989828A (en) * | 2015-06-17 | 2015-10-21 | 宁波东联密封件有限公司 | Mechanical seam with improved structure |
-
2012
- 2012-02-28 JP JP2012041319A patent/JP2013177914A/en active Pending
- 2012-07-05 CN CN 201220324823 patent/CN202732975U/en not_active Expired - Lifetime
- 2012-07-05 CN CN 201210232663 patent/CN103291934A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105283700A (en) * | 2013-04-24 | 2016-01-27 | 伊格尔博格曼德国有限公司 | Slide ring seal with accurately positioned binding |
| US9644747B2 (en) | 2013-04-24 | 2017-05-09 | Eagleburgmann Germany Gmbh & Co. Kg | Mechanical seal having a precisely positioned bandage |
| CN103256391A (en) * | 2013-06-01 | 2013-08-21 | 四川日机密封件股份有限公司 | Self-adaptation sealing-type mechanical sealing device |
| CN103256391B (en) * | 2013-06-01 | 2017-02-22 | 四川日机密封件股份有限公司 | Self-adaptation sealing-type mechanical sealing device |
| CN105492808A (en) * | 2013-07-05 | 2016-04-13 | 费斯托股份有限两合公司 | Valve |
| CN104565382A (en) * | 2015-01-12 | 2015-04-29 | 芜湖市中天密封件有限公司 | High pressure mechanical sealing part of high injection pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103291934A (en) | 2013-09-11 |
| JP2013177914A (en) | 2013-09-09 |
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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 |
Granted publication date: 20130213 |
|
| CX01 | Expiry of patent term |