CN201598528U - Belt type spiral combined end surface mechanical sealing device of disc grinder - Google Patents
Belt type spiral combined end surface mechanical sealing device of disc grinder Download PDFInfo
- Publication number
- CN201598528U CN201598528U CN2009200397218U CN200920039721U CN201598528U CN 201598528 U CN201598528 U CN 201598528U CN 2009200397218 U CN2009200397218 U CN 2009200397218U CN 200920039721 U CN200920039721 U CN 200920039721U CN 201598528 U CN201598528 U CN 201598528U
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- sealing
- spring
- end surface
- gland
- fixed ring
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Abstract
The utility model relates to a belt type spiral feeder in a disc grinder (also called defibrator) for fiber preparation in papermaking or medium-density fiberboard production lines, in particular to a belt type spiral combined end surface mechanical sealing device, which consists of a shaft, a shaft sleeve, a mounting flange, a front gland and a rear gland. Sealing fixed rings, sealing movable rings and a spring are respectively mounted at fronts and rears of clearances among the shaft, the shaft sleeve, the mounting flange, the front gland and the rear gland, a spring base is fixed on the shaft sleeve, the rear end of the spring is connected with the spring base while the front end of the spring is connected with a rear end surface of one sealing movable ring, a front end surface of the sealing movable ring tightly contacts with a rear end surface of one sealing fixed ring which is mounted inside the front gland, the other sealing fixed ring is mounted inside the rear gland, a rear end surface of the other sealing fixed ring is connected with one end of the spring, a front end surface of the sealing fixed ring tightly contacts with the rear end surface of the other sealing movable ring, and the other end of the spring is tightly abutted with the inner surface of the rear gland. The belt type spiral combined end surface mechanical sealing device changes a belt type spiral sealing form, and is low in cooling water leakage quantity, low in consumption and long in service life.
Description
Technical field
The utility model relates to the middle belt feeding screw of disc mill (also claiming defibrator) of the fiber production on papermaking or the medium density fiber board assembly line, particularly relates to belt spiral combination end surface mechanical sealing device.
Background technology
In the defibrator system of papermaking or medium density fibre board (MDF) slurrying, for the uniformity that guarantees charging and obtain stable fiber quality, in fill process, adopt belt spiral feeding structure.Mill main frame power resources are main motor, and raw material rotates in the mill main frame in high speed and is broken down into fiber.In order to seal up the steam and the slurry in mill main frame defibrination district, packing_seal is often adopted in the sealing of present spiral feeding structure both domestic and external, packing seal as shown in Figure 1, packing 205 makes it closely contact with axle 201 by hold-down ring 202 and back-up ring 203, under the effect of marking closely screw 204, packing is expanded.Be auxiliary seal, add sealing medium (water) usually and reach sealing function.The defective of sealing device is: after work a period of time, packing is bigger to the wearing and tearing of axle, causes sealing medium to leak in a large number, seal to shorten service life, equipment work efficient is low, maintenance of equipment time lengthening, cooling-water consumption increases and follow-up dry workshop section power consumption increases.
Summary of the invention
The purpose of this utility model is for overcoming the deficiencies in the prior art, and a kind of novel reliable disc mill belt spiral combination end surface mechanical sealing device is provided, and has changed belt helixseal mode, and the cooling water amount of leakage is little, consume less and long service life.
The technical solution adopted in the utility model is: be made up of axle, axle sleeve, mounting flange, preceding gland and rear pressing cover, the fixed ring of sealing be installed, sealing rotating ring and spring respectively before and after the gap location that axle, axle sleeve, mounting flange, preceding gland and rear pressing cover are formed; Spring base is fixed on the axle sleeve, and the rear end of spring connects spring base, front end connects the rear end face that seals rotating ring, and the front end face that seals rotating ring encircles rear end face surely with sealing and closely contacts, and fixed ring of sealing is installed in the preceding gland; The fixed ring of sealing is installed in the rear pressing cover, and the rear end face of the fixed ring of sealing links to each other with an end of spring, and the front end face of the fixed ring of sealing closely contacts the rear end face of sealing rotating ring, and the other end of spring abuts against the rear pressing cover inner face.
The utility model by two groups perpendicular to the mutual applying of helical axis and make the sealing device that counterrotating alloy sealing ring is formed, overcome the problem that sealing medium is revealed by two groups of sealing rings, realize the effect of both-end sealing, can reduce the leakage of sealing medium in the running and the steam in the defibrination process with the damage of fiber to mechanical seal, but the wearing and tearing of the flexible compensation sealing interannular by spring.Have following effect:
1. traditional packing replacement cycle, generally at 1-2 month, the utility model mechanical seal reached 1-3 service life, can prolong the equipment continuous operation time, shortened maintenance time, increased work efficiency.
2. the utility model lacks than leakage rate with packing_seal, can save a large amount of sealing waters, reduces production costs.
3. the moisture content that traditional packing is sealed into the defibrination district is many, increased the required energy of fiber drying, and the utility model mechanical sealing leakage amount is few, thereby can reduces energy consumption for drying, saves operating cost.
4. the utility model reaches zero leakage, produces and environmental protection provides the foundation for the user cleans.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the background technology structure diagram.
Fig. 2 is a structural representation of the present utility model.
Fig. 3 is the A partial enlarged drawing of Fig. 2.
Among the figure: 400.; 401. torque transmits bolt; 402. axle sleeve; 403. the fixed ring of sealing; 404. sealing rotating ring; 405. spring; 406. spring base; 407.O RunddichtringO; 408. sealing rotating ring; 409. the fixed ring of sealing; 410. spring; 411. end cap; 412. preceding gland; 413.O RunddichtringO; 415. mounting flange; 416.O RunddichtringO; 417. rear pressing cover.
The specific embodiment
As Fig. 1, the utility model mainly is made up of axle 400, axle sleeve 402, mounting flange 415, preceding gland 412 and rear pressing cover 417, and end cap 411 is installed on rear pressing cover 417.Before and after installing respectively before and after the gap location that axle 400, axle sleeve 402, mounting flange 415, preceding gland 412 and rear pressing cover 417 are formed sealing encircle 403 and 409 surely, front and back sealing rotating ring 404 and 408 and front and back spring 405 and 410.Spring base 406 is fixed on the axle sleeve 402 by screw, and axle sleeve 402 drives spring base 406 rotations by screw 414.Spring base 406 is connected with spring 405 rear ends, and the front end of spring 405 links to each other with the rear end face of sealing rotating ring 404 and drives sealing rotating ring 404 rotation at a high speed simultaneously.The front end face of sealing rotating ring 404 encircles 403 rear end face surely with sealing and closely contacts under the pressure effect of spring 405, form diaphragm seal under medium cooperates, thereby reaches the purpose of sealing atmosphere end.Sealing encircle surely 403 be installed in before in the gland 412, fit together with preceding gland 412, encircle 403 surely in sealing and O RunddichtringO 413 be installed with 412 on preceding gland, seal by this O RunddichtringO 413.
At the rear portion of axle 400, sealing encircles 409 surely and is installed in the rear pressing cover 417, fit together with rear pressing cover 417, sealing encircle surely 409 with rear pressing cover 417 between O RunddichtringO 416 is installed, seal by this O RunddichtringO 416.Sealing encircles 409 rear end face surely and links to each other with an end of spring 410, and the other end of spring 410 is near on rear pressing cover 417 inner faces.Sealing encircles 409 front end face surely and closely contacts with the rear end face of sealing rotating ring 408, between sealing rotating ring 408 and axle sleeve 402 O RunddichtringO 407 is installed, and seals by this O RunddichtringO 407 and axle sleeve 402.After sealing rotating ring 408 end faces encircle 409 service wears surely with sealing, can carry out position compensation by spring 410.
During the utility model work, axle 400 rotations, sealing encircles 403 surely, 409, sealing rotating ring 404,408 at spring 405, be adjacent under 410 effects, sealing rotating ring 404,408 by be installed in axle on 400 axle sleeve 402 and be installed in the acting in conjunction one superhigh speed rotation of the spring base 406 of axle sleeve 402, and sealing encircles 403 surely, 409 transfixions, like this, make the dynamic and static ring contact-making surface that rotation relatively take place, under the effect of circulation sealing medium, form one deck liquid diaphragm seal, make circulation sealing medium (water) not leak into atmosphere end and also do not leak into the defibrination working region, the steam of while defibrination working region, fibers etc. also can't enter in the circulating cooling medium, reach sealed at both ends purpose.Sealing encircle surely 403,409 and sealing rotating ring 404,408 between relatively at a high speed rotation, producing a large amount of frictional heats can take out of by circulation sealing medium (cooling water), the aging distortion of secondary element of reducing friction, thus the sealing surface operate as normal can be guaranteed, reach sealing effectiveness.When sealing encircle surely 403,409 and sealing rotating ring 404,408 when end wear occurring after working long hours, can be by flexible being compensated of spring 405,410, thus prolong stream time and service life greatly.End cap 411 can reduce the impact of the fluctuation of steam pressure in the belt spiral transportation to mechanical seal when work, and can reduce tiny solid particulate matter and encircle the accumulation of 409 positions surely in sealing, thereby has stoped the damage of sealing device.
Claims (2)
1. a disc mill belt spiral makes up the end surface mechanical sealing device, form by axle (400), axle sleeve (402), mounting flange (415), preceding gland (412) and rear pressing cover (417), it is characterized in that: the fixed ring of sealing (403,409), sealing rotating ring (404,408) and spring (405,410) are installed respectively before and after the gap location that axle (400), axle sleeve (402), mounting flange (415), preceding gland (412) and rear pressing cover (417) are formed; Spring base (406) is fixed on the axle sleeve (402), the rear end of spring (405) connects spring base (406), front end connects the rear end face that seals rotating ring (404), the front end face of sealing rotating ring (404) closely contacts with the rear end face of the fixed ring of sealing (403), and the fixed ring of sealing (403) is installed in the preceding gland (412); The fixed ring of sealing (409) is installed in the rear pressing cover (417), the rear end face of the fixed ring of sealing (409) links to each other with an end of spring (410), the front end face of the fixed ring of sealing (409) closely contacts the rear end face of sealing rotating ring (408), and the other end of spring (410) abuts against rear pressing cover (417) inner face.
2. disc mill belt spiral combination end surface mechanical sealing device according to claim 1, it is characterized in that: O RunddichtringO (413) is installed between fixed ring of sealing (403) and preceding gland (412), O RunddichtringO (416) is installed between fixed ring of sealing (409) and rear pressing cover (417), O RunddichtringO (407) is installed between sealing rotating ring (408) and axle sleeve (402).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200397218U CN201598528U (en) | 2009-04-29 | 2009-04-29 | Belt type spiral combined end surface mechanical sealing device of disc grinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200397218U CN201598528U (en) | 2009-04-29 | 2009-04-29 | Belt type spiral combined end surface mechanical sealing device of disc grinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201598528U true CN201598528U (en) | 2010-10-06 |
Family
ID=42809577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200397218U Expired - Fee Related CN201598528U (en) | 2009-04-29 | 2009-04-29 | Belt type spiral combined end surface mechanical sealing device of disc grinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201598528U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628344A (en) * | 2013-03-27 | 2014-03-12 | 杭州江菱造纸机械设备厂 | High seal performance double-disc pulping machine |
| CN104863005A (en) * | 2015-04-22 | 2015-08-26 | 浙江大盛纸业有限公司 | Disc mill sealing device for pulping machine |
| CN110565428A (en) * | 2019-09-29 | 2019-12-13 | 镇江中福马机械有限公司 | Sealing device for main shaft of disc mill of density fiberboard production equipment |
| CN113236781A (en) * | 2021-04-15 | 2021-08-10 | 大连理工大学 | Sealing ring with antifriction and heat dissipation structure on end face and machining method thereof |
-
2009
- 2009-04-29 CN CN2009200397218U patent/CN201598528U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628344A (en) * | 2013-03-27 | 2014-03-12 | 杭州江菱造纸机械设备厂 | High seal performance double-disc pulping machine |
| CN103628344B (en) * | 2013-03-27 | 2016-03-02 | 杭州江菱造纸机械设备厂 | High leakproofness double disc refiner |
| CN104863005A (en) * | 2015-04-22 | 2015-08-26 | 浙江大盛纸业有限公司 | Disc mill sealing device for pulping machine |
| CN110565428A (en) * | 2019-09-29 | 2019-12-13 | 镇江中福马机械有限公司 | Sealing device for main shaft of disc mill of density fiberboard production equipment |
| CN113236781A (en) * | 2021-04-15 | 2021-08-10 | 大连理工大学 | Sealing ring with antifriction and heat dissipation structure on end face and machining method thereof |
| CN113236781B (en) * | 2021-04-15 | 2022-04-15 | 大连理工大学 | Sealing ring with antifriction and heat dissipation structure on end face and machining method thereof |
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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 |
Granted publication date: 20101006 Termination date: 20170429 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |