CN201053497Y - Shaft sealing device of pressure pulp screen - Google Patents
Shaft sealing device of pressure pulp screen Download PDFInfo
- Publication number
- CN201053497Y CN201053497Y CNU2007200213395U CN200720021339U CN201053497Y CN 201053497 Y CN201053497 Y CN 201053497Y CN U2007200213395 U CNU2007200213395 U CN U2007200213395U CN 200720021339 U CN200720021339 U CN 200720021339U CN 201053497 Y CN201053497 Y CN 201053497Y
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- CN
- China
- Prior art keywords
- packing
- bearing support
- packing gland
- pulp
- rotor
- 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 shaft sealing device of a pressure pulp screen, and comprises a bearing pedestal, bearings, bearing caps, and a rotor spindle which is rotationally arranged in the bearing pedestal through the two bearings, wherein, the end of the rotor spindle positioned outside the pulp screen is a power input end and the end of the rotor spindle positioned inside the pulp screen is fixedly provided with a rotor of the pulp screen; the end of the bearing pedestal positioned inside the shell of the pulp screen is fixedly provided with a packing seat which is provided inside with packing; the packing seat is also provided with a packing gland device for adjusting packing sealing pressure; a shaft segment of the rotor spindle corresponding to the packing is detachably and fixedly covered with a spindle sleeve; a sealing ring is arranged between the spindle sleeve and the rotor spindle. The utility model which uses packing sealing to replace mechanical sealing has low leakage rate, convenient maintenance and operation and low operation cost, and meanwhile convenient replacement is achieved because of the spindle sleeve arranged between the spindle and the packing, and the service life of the rotor spindle is prolonged, and further the service life of the pulp screen is prolonged.
Description
Technical field
The utility model relates to the papermaking equipment technical field, relates in particular to a kind of pressure pulp screen.
Background technique
Pulp cleaner is one of requisite visual plant in the waste paper processing process, and screening can be removed plurality of impurities such as lumps, sicker, hot-melt object, chip etc., and the quality quality of final products depends on the height of screening effeciency to a great extent; Comprise in the waste paper processing process at the pulping and paper-making production line now, the sieve overwhelming majority of using is pressurized screen, the screening area of pressurized screen mainly is made up of a columnar screen cylinder and rotor, when rotor turns round, epitrochanterian rotor will sieve from the paper pulp of liquid feeding pump producing waterpower pulse near sieve plate face place.Pressurized screen reliability and working efficiency be decided by rotor, but existing rotor shaft seal is mechanical seal, shortcoming is: the life-span is low, replacings is difficult, maintenance expenses is high, operating cost is big, and needs press water to lubricate; Packing_seal because packing gland is positioned at a side of liquid, can't solve a difficult problem of adjusting sealing load as a kind of sealing means better than mechanical seal, also can't be applied to the shaft sealing of pulp cleaner.
The model utility content
Technical problem to be solved in the utility model provides a kind of employing packing_seal, and be easy to housekeeping operation, simple and reliable, operating cost is low, do not need that press water is lubricated, the shaft sealer of the pressure pulp screen of high life.
For solving the problems of the technologies described above, the technical solution of the utility model is: the shaft sealer of pressure pulp screen, comprise the bearing support that is fixedly mounted on the pulp cleaner housing bottom, the two ends of described bearing support are installed with two bearings, be installed with bearing cap on the bearing support of the exterior edge face of described two bearings respectively, by the rotatable rotor shaft that is installed in the described bearing support of two bearings, it is power intake that described rotor shaft is positioned at the outer end of pulp cleaner housing, the end that described rotor shaft is positioned at the pulp cleaner housing is installed with the pulp cleaner rotor, the end of described bearing seat in described pulp cleaner housing is installed with the packing seat, be provided with packing in the described packing seat, also be provided with the packing gland device of adjusting packing_seal pressure on the described packing seat, described rotor shaft is provided with seal ring corresponding to axle sleeve detachably is installed on the shaft part of described packing between described axle sleeve and the described rotor shaft; Be provided with airtight space between described packing seat and the described bearing support, described packing gland device is installed in the described airtight space.
As a kind of improvement, described packing gland device comprises packing gland and symmetrically arranged packing gland adjustment bolt, in the confined space that described packing gland is provided with between described packing seat and described bearing support, be provided with the packing gland that is through to outer power intake one end of described bearing support in the described bearing support and adjust bolt hole, described packing gland adjustment bolt passes described packing gland adjustment bolt hole and is threaded with described packing gland, and described packing gland adjustment bolt is rotatable to be installed in the described packing gland adjustment bolt hole.
Owing to adopted technique scheme, the shaft sealer of pressure pulp screen, comprise the bearing support that is fixedly mounted on the pulp cleaner housing bottom, the two ends of described bearing support are installed with two bearings, be installed with bearing cap on the bearing support of the exterior edge face of described two bearings respectively, by the rotatable rotor shaft that is installed in the described bearing support of two bearings, it is power intake that described rotor shaft is positioned at the outer end of pulp cleaner housing, the end that described rotor shaft is positioned at the pulp cleaner housing is installed with the pulp cleaner rotor, the end of described bearing seat in described pulp cleaner housing is installed with the packing seat, be provided with packing in the described packing seat, also be provided with the packing gland device of adjusting packing_seal pressure on the described packing seat, described rotor shaft is connected to axle sleeve corresponding to detachable fixed cover on the shaft part of described packing, is provided with seal ring between described axle sleeve and the described rotor shaft; Be provided with airtight space between described packing seat and the described bearing support, described packing gland device is installed in the described airtight space; After adopting said structure, replace mechanical seal to become possibility with packing_seal, and leak-down rate is low, is easy to housekeeping operation, operating cost is low, and then has improved the working efficiency of pressurized screen.
Description of drawings
Fig. 1 is the utility model embodiment's a structural representation;
Fig. 2 is the structure enlarged view of the utility model embodiment hermetic unit;
Fig. 3 is the structural drawing that the utility model embodiment packing gland is adjusted the bolt end.
Embodiment
As Fig. 1, shown in Figure 2, the shaft sealer of pressure pulp screen, comprise the bearing support 2 that is fixedly mounted on pulp cleaner housing 1 bottom, the two ends of described bearing support 2 are installed with two bearings 3, be installed with bearing cap 4 respectively on the bearing support 2 of the exterior edge face of described two bearings 3, by the rotatable rotor shaft 5 that is installed in the described bearing support 2 of two bearings, it is power intake that described rotor shaft 5 is positioned at the outer end of pulp cleaner housing, the end that described rotor shaft 5 is positioned at the pulp cleaner housing is installed with pulp cleaner rotor 6, the end that described bearing support 2 is positioned at described pulp cleaner housing is installed with packing seat 7, be provided with packing 8 in the described packing seat 7, also be provided with the packing gland device of adjusting packing_seal pressure on the described packing seat 7, described rotor shaft 5 is corresponding to axle sleeve 9 detachably is installed on the shaft part of described packing 8, can be fixing between axle sleeve 9 and the rotor shaft 5 by flat key or pin, be provided with seal ring 10 between described axle sleeve 9 and the described rotor shaft 5.
Described packing gland device comprises packing gland 11 and symmetrically arranged packing gland adjustment bolt 12, be provided with airtight space between described packing seat 7 and the described bearing support 2, described packing gland 11 is positioned at this airtight space, be provided with the packing gland that is through to described bearing support 2 outer power intake one ends in the described bearing support 2 and adjust bolt hole, described packing gland adjustment bolt 12 passes described packing gland adjustment bolt hole and is threaded with described packing gland 11.
As shown in Figure 3, described packing gland is adjusted bolt 12 rotatable being installed in the described packing gland adjustment bolt hole, concrete structure is that lower ball cover 4 has one " U " shape opening, described packing gland adjustment bolt has a shaft section diameter smaller corresponding to the position of " U " shape opening, to guarantee that described packing gland adjusts bolt and rotate and do not have and move axially " U " shape opening in, the packing gland adjustment bolt of rotation can be adjusted the position of packing gland 11.
Present embodiment adopts packing_seal to replace mechanical seal on the one hand, and packing_seal also has particular structure, the airtight space of its packing gland 11 between described packing seat 7 and described bearing support 2, described packing gland is adjusted bolt and is positioned at outside the pressurized screen housing, change traditional packing gland 11 and be positioned at described packing seat 7 structural type in addition, sealing effect is more good, and be the can regulate sealing load in the pressurized screen working procedure, improved the working efficiency of pressurized screen greatly.
The utility model can be applicable to common outflow sieve, common interior stream sieve, multistage sieve, sorting screen, twin drum pressurized screen etc.; and protection domain of the present utility model is as the criterion with the content of claim, any based on conversion of the present utility model all within protection domain of the present utility model.
Claims (2)
1. the shaft sealer of pressure pulp screen, comprise the bearing support (2) that is fixedly mounted on pulp cleaner housing (1) bottom, the two ends of described bearing support (2) are installed with two bearings (3), be installed with bearing cap (4) respectively on the bearing support (2) of the exterior edge face of described two bearings (3), by the rotatable rotor shaft (5) that is installed in the described bearing support (2) of two bearings, it is power intake that described rotor shaft (5) is positioned at the outer end of pulp cleaner housing, the end that described rotor shaft (5) is positioned at the pulp cleaner housing is installed with pulp cleaner rotor (6), it is characterized in that: the end that described bearing support (2) is positioned at described pulp cleaner housing is installed with packing seat (7), be provided with packing (8) in the described packing seat (7), also be provided with the packing gland device of adjusting packing_seal pressure on the described packing seat (7), described rotor shaft (5) is provided with seal ring (10) corresponding to axle sleeve (9) detachably is installed on the shaft part of described packing (8) between described axle sleeve (9) and the described rotor shaft (5); Be provided with airtight space between described packing seat (7) and the described bearing support (2), described packing gland device is installed in the described airtight space.
2. the shaft sealer of pressure pulp screen as claimed in claim 1, it is characterized in that: described packing gland device comprises packing gland (11) and symmetrically arranged packing gland adjustment bolt (12), described packing gland (11) is positioned at the confined space that is provided with between described packing seat (7) and the described bearing support (2), be provided with the packing gland that is through to outer power intake one end of described bearing support (2) in the described bearing support (2) and adjust bolt hole, described packing gland adjustment bolt (12) passes described packing gland adjustment bolt hole and is threaded with described packing gland (11), and described packing gland adjustment bolt (12) is rotatable to be installed in the described packing gland adjustment bolt hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200213395U CN201053497Y (en) | 2007-04-29 | 2007-04-29 | Shaft sealing device of pressure pulp screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200213395U CN201053497Y (en) | 2007-04-29 | 2007-04-29 | Shaft sealing device of pressure pulp screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201053497Y true CN201053497Y (en) | 2008-04-30 |
Family
ID=39393160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200213395U Expired - Lifetime CN201053497Y (en) | 2007-04-29 | 2007-04-29 | Shaft sealing device of pressure pulp screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201053497Y (en) |
-
2007
- 2007-04-29 CN CNU2007200213395U patent/CN201053497Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20070429 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |