CN203635157U - Granulating knife sealing structure of wet mixing granulator - Google Patents
Granulating knife sealing structure of wet mixing granulator Download PDFInfo
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- CN203635157U CN203635157U CN201320880425.7U CN201320880425U CN203635157U CN 203635157 U CN203635157 U CN 203635157U CN 201320880425 U CN201320880425 U CN 201320880425U CN 203635157 U CN203635157 U CN 203635157U
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- granulating cutter
- granulating
- seal
- flange seat
- flange
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Abstract
The utility model relates to a granulating knife sealing structure of a wet mixing granulator. The granulating knife sealing structure is characterized in that a granulating driving device comprises a granulating knife driving shaft. The granulating knife sealing structure comprises a granulating knife flange seat, a sealing member, a friction sleeve and a sealing cover which are fixedly connected to a material cylinder, wherein the granulating knife flange seat is provided with a flange hole, the granulating knife driving shaft penetrates through the flange hole in the granulating knife flange seat and is fixedly sleeved to an output shaft of a motor, the outer surface of the granulating knife driving shaft in the flange hole of the granulating knife flange seat is packaged by the friction sleeve sleeved on the granulating knife driving shaft, the sealing cover is sleeved to the friction cover and covers a top end surface position of the granulating knife flange seat in the material cylinder in a sealing manner, the friction sleeve is sealed with the inner wall of the of the flange hole of the granulating knife flange seat by virtue of the sealing member, and an annular cavity is formed by the sealing member, the outer wall of the friction sleeve, the inner wall of the flange hole of the granulating knife flange seat and the sealing cover in the flange hole of the granulating knife flange seat. The granulating knife sealing structure has the beneficial effects that no dead angle is structurally formed, an on-site cleaning function can be realized, a cleaning job is simple, convenient and time-saving, and no residue is generated during the cleaning.
Description
Technical field
The utility model relates to a kind of sealing mechanism of wet mixing pelletizer, relates in particular to a kind of granulating cutter hermetically-sealed construction of wet mixing pelletizer.
Background technology
Wet mixing pelletizer is the special equipment that in the life of medical industry tablet, medicinal powder, starch, adhesive is carried out to wet-mixing granulation.Also the granular material that is applicable to food, chemical industry mixes and granulates.Its structure generally comprises pedestal, material cylinder, rabbling mechanism and granulation mechanism; rabbling mechanism is by stirring transmission device and paddle forms; granulation mechanism is made up of granulating cutter tumbler and granulating cutter; granulating cutter is arranged on material cylinder sidewall, between granulating cutter transmission device and material cylinder, has needed granulating cutter sealing mechanism to be sealed.For granulator, because the mixture of the material entering and water may be acid, may be alkalescence; the cleaning of granulator is necessary; once do not wash clean clearly meeting contaminated material, serious words may cause scrapping of material, the noresidue therefore granulator cleaning is totally necessary.As on fruit structure with dead angle, if material, water etc. enter in dead angle in production process, cannot clean up.Because the seal of granulating cutter hermetically-sealed construction is in the majority, so existing granulator dead angle or cleaning difficult point all appear at the granulating cutter hermetically-sealed construction place between granulating cutter tumbler and material cylinder.Moreover seal belongs to vulnerable part, after the motor at material cylinder rear must being removed after wearing and tearing, keep in repair again, change, because motor is to be all fixedly installed on pedestal, it is removed, and not only inconvenience is time-consuming again, whole maintenance work is loaded down with trivial details, and frequently the removing and installing having a great impact the service life of motor of motor.
Summary of the invention
The purpose of this utility model is the defect existing for prior art, a kind of good seal performance is provided, cleans granulating cutter hermetically-sealed construction easy to maintenance, that nothing is cleaned dead angle.
For achieving the above object, the utility model adopts following technical proposals: a kind of granulating cutter hermetically-sealed construction of wet mixing pelletizer, be arranged between material cylinder and granulation transmission device, granulation transmission device comprises granulating cutter power transmission shaft, described granulating cutter hermetically-sealed construction comprises the granulating cutter flange seat being fixedly connected on material cylinder, seal, friction sleeve, seal cover, described granulating cutter flange seat is with flange hole, granulating cutter power transmission shaft is fixedly sleeved on the output shaft of motor through the flange hole of granulating cutter flange seat, in the flange hole of granulating cutter flange seat, the outer surface of granulating cutter power transmission shaft is wrapped up by the friction sleeve being socketed on granulating cutter power transmission shaft, seal cover is socketed on friction sleeve and is encapsulated in the top end face position of granulating cutter flange seat at material cylinder inner cap, between friction sleeve and granulating cutter flange seat flange hole inwall, seal by seal, in granulating cutter flange seat flange hole by seal, friction sleeve outer wall, granulating cutter flange seat flange hole inwall, the common composition of seal cover one toroidal cavity, granulating cutter flange seat also offers and makes toroidal cavity and extraneous two radial direction through hole that are connected in material cylinder outer fix, be respectively import and outlet, its middle outlet and toroidal cavity connection place are positioned at the minimum point of toroidal cavity in radial axle cross section.
Improve as one: between the top end face of described granulating cutter flange seat and seal cover, be also provided with ptfe ring, the cannelure that the bottom of described seal cover is offered with respect to granulating cutter flange seat top end face position, ptfe ring is embedded in cannelure.
Improve as one: described friction sleeve afterbody is with step bulge loop, and seal is by being resisted against on step bulge loop at axis direction upper limit.
Improve as one: the flange hole of described granulating cutter flange seat is made up of front and rear, front portion is conical cavity structure, and rear portion is cylindrical cavity structure.
Improve as one: described seal is two direction sealing type shaft seal.
Granulating cutter hermetically-sealed construction of the present utility model; owing to seal being arranged in the flange hole of granulating cutter flange seat; jointly formed by seal, friction sleeve outer wall, granulating cutter flange seat flange hole inwall, seal cover at granulating cutter flange seat flange hole inner annular cavity; wet mixing pelletizer is in the time of granulation operating mode; pass into clean compressed air by import, compressed air enters toroidal cavity, rotates under driven by motor with seal cover; granulating cutter flange seat is fixedly connected with and expects on cylinder transfixion.Seal cover and granulating cutter flange seat end-face friction form very little gap, and compressed air could overflow from this gap after toroidal cavity is uniformly distributed, and makes ring cavity have certain back pressure, thereby prevents that material from entering in ring cavity, plays positiver sealing effect.And the utility model not only structurally can also be realized cleaning function in place without dead angle, make cleaning easy, save time, clean noresidue.Granulating cutter hermetically-sealed construction of the present utility model adopts unidirectional reassembling type hermetically-sealed construction simultaneously, only need be from material cylinder direction by granulating cutter, seal cover, then when friction sleeve is removed from material cylinder direction, just seal together can be removed, change, greatly facilitate maintenance, change.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of embodiment of granulating cutter hermetically-sealed construction of the utility model wet mixing pelletizer.
Fig. 2 be in Fig. 1 A-A to cutaway view.
Fig. 3 is the partial enlarged drawing at B place in Fig. 1.
Detailed description of the invention
As shown in Figure 1, Figure 2, Figure 3 shows; a kind of embodiment of granulating cutter hermetically-sealed construction of the utility model wet mixing pelletizer; it is arranged between material cylinder 1 and granulation transmission device; granulation transmission device comprises granulating cutter power transmission shaft 13, and described granulating cutter hermetically-sealed construction comprises the granulating cutter flange seat 6, seal 8, friction sleeve 7, seal cover 4, the ptfe ring 5 that are fixedly welded on material cylinder 1.Granulating cutter flange seat 6 is with flange hole, and in order to have facilitated the unidirectional dismounting of past material cylinder 1 direction, the granulating cutter flange seat 6 that the present embodiment adopts flange hole to be made up of the front portion of conical cavity structure and the rear portion of cylindrical cavity structure.Granulating cutter power transmission shaft 13 is fixedly sleeved on the output shaft of motor 9 through the flange hole of granulating cutter flange seat 6.In the flange hole of granulating cutter flange seat 6, the outer surface of granulating cutter power transmission shaft 13 is wrapped up by the friction sleeve 7 being socketed on granulating cutter power transmission shaft 13.Seal cover 4 is socketed on friction sleeve 7 and at material cylinder 1 inner cap and is encapsulated in the top end face position of granulating cutter flange seat 6, and acts radially on seal cover 4 by fastener 2, makes seal cover, friction sleeve 7 tighten sealing in granulating cutter power transmission shaft 13.Adopt rear portion diameter to be greater than anterior granulating cutter power transmission shaft 13, the shaft section of granulating cutter power transmission shaft 13 is convex character shape, friction sleeve 7, seal cover 4, fastener 2 are being installed and can be inserted in by the anterior osculum of granulating cutter power transmission shaft 13, against spacing rear portion expansion in conjunction with wall on, the spacer sleeve breech face of installing and wrap up granulating cutter power transmission shaft 13 forward outer surface to fastener 2, seal cover 4, friction sleeve 7 axially backward against crush seal, the sealed parcel of whole outer surface of granulating cutter power transmission shaft 13, granulating cutter power transmission shaft 13 is isolated with material, without invasion dead angle.Between friction sleeve 7 and granulating cutter flange seat 6 flange hole inwalls, seal by seal 8, seal 8 is two direction sealing type shaft seal, can prevent from then on axle head leakage of compressed air.And friction sleeve 7 afterbodys are with step bulge loop 7a, and seal 8 is upper at axis direction upper limit by being resisted against step bulge loop 7a, also makes seal 8 to disassemble with friction sleeve 7 easily in the stability that ensures sealing simultaneously.In granulating cutter flange seat 6 flange holes, jointly form a toroidal cavity 12 by seal 8, friction sleeve 7 outer walls, granulating cutter flange seat 6 flange hole inwalls, seal cover 4, granulating cutter flange seat 6 also offers and makes toroidal cavity 12 and extraneous two radial direction through hole that are connected in material cylinder outer fix, be respectively import 11 and outlet 10, its middle outlet 10 is positioned at the minimum point of toroidal cavity 12 in radial axle cross section with toroidal cavity 12 connections place.
The present embodiment is also provided with ptfe ring 5 between the top end face of described granulating cutter flange seat 6 and seal cover 4, the cannelure that the bottom of described seal cover 4 is offered with respect to granulating cutter flange seat 6 top end face positions, and ptfe ring 5 is embedded in cannelure.Its role is to: ptfe ring 5 is installed on seal cover 4 and rotates with seal cover 4, form annular gap S by ptfe ring 5 and the 6 top end face frictions of granulating cutter flange seat, due to the less 0.1mm that is about of gap S, even compressed air compressed air before toroidal cavity 12 is uniformly distributed can not smooth and easyly be discharged, ensure that it is unidirectional and uniform that compressed air overflows from annular gap S.Compressed air after toroidal cavity is uniformly distributed from then on annular gap S overflow, make ring cavity 12 have certain back pressure, prevent that material from entering in ring cavity, play positiver sealing effect, and structurally without dead angle.Captured granulating cutter hermetically-sealed construction place all the time cannot avoid occurring dead angle, clean difficult point technical problem.
The utility model can be realized the cleaning in place of wet mixing pelletizer.In the time of cleaning operating mode in place, import 11 switches to cleansing medium by tee ball valve, cleansing medium enters ring cavity 12 granulating cutter hermetically-sealed construction is carried out to cleaning in place, cleansing medium is overflowed in material cylinder 1 by annular gap S between ptfe ring 5, granulating cutter flange seat 6 top end faces again, participates in the cleaning of material cylinder 1.Because annular gap S between ptfe ring 5, granulating cutter flange seat 6 top end faces is less, can not ensure that the material that is bled into toroidal cavity 12 all cleans up, therefore, can be by the draining on connection outlet 10 (pipe) valve open, because outlet 10 is positioned at the minimum point of toroidal cavity 12 on radial axle cross section, the i.e. minimum point of structure, therefore cleansing medium limit is cleaned granulating cutter hermetically-sealed construction, limit draining is discharged dirt thereupon by outlet 10 drainings (pipe), reach cleaning object in place.
Clean completely, import 11 switches to compressed air again, is connected to draining (pipe) valve open in outlet 10, makes compressed air that residual water is sealed to positions by exporting 10 discharges.
Due to seal 8 with friction sleeve 7 in Frotteurism, after certain working time, seal 8 can damage.When maintenance or replacing, the utility model is without part 9 motors are pulled down, only need granulating cutter 3, seal cover 4, ptfe ring 5 be pulled down from material cylinder 1 direction, due to friction sleeve 7 tail end band steps, when friction sleeve 7 is removed from material cylinder 1 direction, just seal 8 together can be removed, be changed, greatly facilitate the convenience of maintenance.
Claims (9)
1. the granulating cutter hermetically-sealed construction of a wet mixing pelletizer, be arranged between material cylinder (1) and granulation transmission device, granulation transmission device comprises granulating cutter power transmission shaft (13), it is characterized in that: described granulating cutter hermetically-sealed construction comprises the granulating cutter flange seat (6) being fixedly connected on material cylinder (1), seal (8), friction sleeve (7), seal cover (4), described granulating cutter flange seat (6) is with flange hole, granulating cutter power transmission shaft (13) is fixedly sleeved on the output shaft of motor (9) through the flange hole of granulating cutter flange seat (6), in the flange hole of granulating cutter flange seat (6), the outer surface of granulating cutter power transmission shaft (13) is wrapped up by the friction sleeve (7) being socketed on granulating cutter power transmission shaft (13), seal cover (4) is socketed on friction sleeve (7) above and is encapsulated in the top end face position of granulating cutter flange seat (6) at material cylinder (1) inner cap, between friction sleeve (7) and granulating cutter flange seat (6) flange hole inwall, seal by seal (8), in granulating cutter flange seat (6) flange hole by seal (8), friction sleeve outer wall, granulating cutter flange seat (6) flange hole inwall, seal cover (4) forms a toroidal cavity (12) jointly, granulating cutter flange seat (6) also offers and makes toroidal cavity (12) and extraneous two radial direction through hole that are connected in material cylinder outer fix, be respectively import (11) and outlet (10), its middle outlet (10) is positioned at the minimum point of toroidal cavity (12) in radial axle cross section with toroidal cavity (12) connection place.
2. the granulating cutter hermetically-sealed construction of wet mixing pelletizer according to claim 1; it is characterized in that: between the top end face of described granulating cutter flange seat (6) and seal cover (4), be also provided with ptfe ring (5); the cannelure that the bottom of described seal cover (4) is offered with respect to granulating cutter flange seat (6) top end face position, ptfe ring (5) is embedded in cannelure.
3. the granulating cutter hermetically-sealed construction of wet mixing pelletizer according to claim 1 and 2, is characterized in that: described friction sleeve (7) afterbody is with step bulge loop, and seal (8) is by being resisted against on step bulge loop at axis direction upper limit.
4. the granulating cutter hermetically-sealed construction of wet mixing pelletizer according to claim 1 and 2, is characterized in that: the flange hole of described granulating cutter flange seat (6) is made up of front and rear, and front portion is conical cavity structure, and rear portion is cylindrical cavity structure.
5. the granulating cutter hermetically-sealed construction of wet mixing pelletizer according to claim 3, is characterized in that: the flange hole of described granulating cutter flange seat (6) is made up of front and rear, and front portion is conical cavity structure, and rear portion is cylindrical cavity structure.
6. the granulating cutter hermetically-sealed construction of wet mixing pelletizer according to claim 1 and 2, is characterized in that: described seal (8) is two direction sealing type shaft seal.
7. the granulating cutter hermetically-sealed construction of wet mixing pelletizer according to claim 3, is characterized in that: described seal (8) is two direction sealing type shaft seal.
8. the granulating cutter hermetically-sealed construction of wet mixing pelletizer according to claim 4, is characterized in that: described seal (8) is two direction sealing type shaft seal.
9. the granulating cutter hermetically-sealed construction of wet mixing pelletizer according to claim 5, is characterized in that: described seal (8) is two direction sealing type shaft seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320880425.7U CN203635157U (en) | 2013-12-30 | 2013-12-30 | Granulating knife sealing structure of wet mixing granulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320880425.7U CN203635157U (en) | 2013-12-30 | 2013-12-30 | Granulating knife sealing structure of wet mixing granulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203635157U true CN203635157U (en) | 2014-06-11 |
Family
ID=50866441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320880425.7U Withdrawn - After Issue CN203635157U (en) | 2013-12-30 | 2013-12-30 | Granulating knife sealing structure of wet mixing granulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203635157U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103706292A (en) * | 2013-12-30 | 2014-04-09 | 浙江迦南科技股份有限公司 | Granulation cutter sealing structure of wet mixing granulator |
| WO2021253582A1 (en) * | 2020-06-19 | 2021-12-23 | 浙江迦南科技股份有限公司 | Straightening and wet mixed granulator |
-
2013
- 2013-12-30 CN CN201320880425.7U patent/CN203635157U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103706292A (en) * | 2013-12-30 | 2014-04-09 | 浙江迦南科技股份有限公司 | Granulation cutter sealing structure of wet mixing granulator |
| CN103706292B (en) * | 2013-12-30 | 2016-01-27 | 浙江迦南科技股份有限公司 | The granulating cutter hermetically-sealed construction of wet mixing pelletizer |
| WO2021253582A1 (en) * | 2020-06-19 | 2021-12-23 | 浙江迦南科技股份有限公司 | Straightening and wet mixed granulator |
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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 |
Granted publication date: 20140611 Effective date of abandoning: 20160127 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |