CN103706292B - The granulating cutter hermetically-sealed construction of wet mixing pelletizer - Google Patents
The granulating cutter hermetically-sealed construction of wet mixing pelletizer Download PDFInfo
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- CN103706292B CN103706292B CN201310742592.XA CN201310742592A CN103706292B CN 103706292 B CN103706292 B CN 103706292B CN 201310742592 A CN201310742592 A CN 201310742592A CN 103706292 B CN103706292 B CN 103706292B
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Abstract
A kind of granulating cutter hermetically-sealed construction of wet mixing pelletizer, granulation transmission device comprises granulating cutter power transmission shaft, described granulating cutter hermetically-sealed construction comprises the granulating cutter flange seat be 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 wrapped up by the friction sleeve be socketed on granulating cutter power transmission shaft, seal cover to be socketed on friction sleeve and to be encapsulated in the top end face position of granulating cutter flange seat at material cylinder inner cap, sealed by seal between friction sleeve and granulating cutter flange seat flange hole inwall, by seal in granulating cutter flange seat flange hole, friction sleeve outer wall, granulating cutter flange seat flange hole inwall, seal cover forms a toroidal cavity jointly.Not only structurally can also realize incumbent firms function without dead angle, make cleaning easy, save time, clean noresidue.
Description
Technical field
The present invention relates to a kind of sealing mechanism of wet mixing pelletizer, particularly relate to a kind of granulating cutter hermetically-sealed construction of wet mixing pelletizer.
Background technology
Wet mixing pelletizer is the special equipment in the life of medical industry tablet, medicinal powder, starch, adhesive being carried out to wet-mixing granulation.Also granular material mixing and the granulation of food, chemical industry is applicable to.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, needed granulating cutter sealing mechanism to be sealed.For granulator, because the mixture of the material that enters and water may be acid, may be alkalescence; the cleaning of granulator is necessary; once not wash clean clearly meeting contaminated material, serious words may cause scrapping of material, therefore granulator cleaning must totally noresidue.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, carry out again keeping in repair, changing after the motor at material cylinder rear must being removed upon wear, because motor is all be fixedly installed on pedestal, it is time-consuming again that it removes not only inconvenience, 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 object of the invention is to the defect existed for prior art, a kind of good seal performance is provided, clean granulating cutter hermetically-sealed construction that is easy to maintenance, nothing cleaning dead angle.
For achieving the above object, the present invention 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 be 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 wrapped up by the friction sleeve be socketed on granulating cutter power transmission shaft, seal cover to be socketed on friction sleeve and to be encapsulated in the top end face position of granulating cutter flange seat at material cylinder inner cap, sealed by seal between friction sleeve and granulating cutter flange seat flange hole inwall, by seal in granulating cutter flange seat flange hole, friction sleeve outer wall, granulating cutter flange seat flange hole inwall, seal cover forms a toroidal cavity jointly, granulating cutter flange seat also offers two radial direction through hole that toroidal cavity is connected with the external world 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: be also provided with ptfe ring between the top end face of described granulating cutter flange seat and seal cover, the cannelure that the bottom of described seal cover is offered relative 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 spacing in the axial direction by being resisted against on step bulge loop.
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 invention; owing to seal being arranged in the flange hole of granulating cutter flange seat; jointly be made up of 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 when 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 make ring cavity have certain back pressure, thus prevent material from entering in ring cavity, play positiver sealing effect.And the present invention not only structurally can also realize incumbent firms function without dead angle, make cleaning easy, save time, clean noresidue.Granulating cutter hermetically-sealed construction of the present invention adopts unidirectional reassembling type hermetically-sealed construction simultaneously, only from material cylinder direction by after granulating cutter, seal cover, then when friction sleeve is removed from material cylinder direction, just seal together need can be removed, change, greatly facilitate maintenance, change.
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of granulating cutter hermetically-sealed construction of wet mixing pelletizer of the present invention.
Fig. 2 be in Fig. 1 A-A to sectional 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 wet mixing pelletizer of the present invention; 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 the conveniently unidirectional dismounting in 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 wrapped up by the friction sleeve 7 be socketed on granulating cutter power transmission shaft 13.Seal cover 4 to be socketed on friction sleeve 7 and to be encapsulated in the top end face position of granulating cutter flange seat 6 at material cylinder 1 inner cap, and acts radially on seal cover 4 by fastener 2, makes seal cover, friction sleeve 7 fit sealing on granulating cutter power transmission shaft 13.Rear portion diameter is adopted 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, expand in conjunction with on wall against spacing at rear portion, install and the spacer sleeve breech face wrapping 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 whole outer surface of granulating cutter power transmission shaft 13 is by sealed envelope, granulating cutter power transmission shaft 13 and material are isolated, without invasion dead angle.Sealed by seal 8 between friction sleeve 7 and granulating cutter flange seat 6 flange hole inwall, seal 8 is two direction sealing type shaft seal, can prevent compressed air from then on axle head leakage.And friction sleeve 7 afterbody is with step bulge loop 7a, seal 8 is spacing in the axial direction by being resisted against on step bulge loop 7a, is ensureing that the stability of sealing also makes seal 8 to disassemble with friction sleeve 7 easily simultaneously.Jointly a toroidal cavity 12 is formed by seal 8, friction sleeve 7 outer wall, granulating cutter flange seat 6 flange hole inwall, seal cover 4 in granulating cutter flange seat 6 flange hole, granulating cutter flange seat 6 also offers two radial direction through hole that toroidal cavity 12 is connected with the external world 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.
The present embodiment is also provided with ptfe ring 5 between the top end face and seal cover 4 of described granulating cutter flange seat 6, the cannelure that the bottom of described seal cover 4 is offered relative to granulating cutter flange seat 6 top end face position, 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, rubbed by ptfe ring 5 and granulating cutter flange seat 6 top end face and form annular gap S, 0.1mm is about because gap S is less, even compressed air compressed air before toroidal cavity 12 is uniformly distributed can not smooth and easyly be discharged, it is unidirectional and uniform for ensure that compressed air overflows from annular gap S.From then on compressed air could overflow by annular gap S after toroidal cavity is uniformly distributed, and makes ring cavity 12 have certain back pressure, prevent material from entering in ring cavity, play positiver sealing effect, and structurally without dead angle.Capture granulating cutter hermetically-sealed construction place all the time cannot to avoid occurring dead angle, cleaning difficult point technical problem.
The present invention can realize the incumbent firms of wet mixing pelletizer.When incumbent firms operating mode, import 11 switches to cleansing medium by tee ball valve, cleansing medium enters ring cavity 12 pairs of granulating cutter hermetically-sealed constructions and carries out incumbent firms, cleansing medium is overflowed in material cylinder 1 by annular gap S between ptfe ring 5, granulating cutter flange seat 6 top end face again, participates in the cleaning of material cylinder 1.Because between ptfe ring 5, granulating cutter flange seat 6 top end face, annular gap S is less, can not ensure that the material being bled into toroidal cavity 12 all cleans up, therefore, by draining (pipe) valve open on connection outlet 10, the minimum point of toroidal cavity 12 on radial axle cross section can be positioned at, i.e. the minimum point of structure owing to exporting 10, therefore cleansing medium limit is cleaned granulating cutter hermetically-sealed construction, limit draining, is discharged dirt by outlet 10 draining (pipe) thereupon, reaches incumbent firms object.
Clean complete, 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 position by exporting 10 discharges.
Because seal 8 and friction sleeve 7 are in Frotteurism, after certain working time, seal 8 can damage.When maintenance or replacing, the present invention is without the need to pulling down part 9 motor, only from material cylinder 1 direction, granulating cutter 3, seal cover 4, ptfe ring 5 need be pulled down, due to friction sleeve 7 tail end band step, when friction sleeve 7 is removed from material cylinder 1 direction, just seal 8 together can be removed, change, 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) be 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) wrapped up by the friction sleeve (7) be socketed on granulating cutter power transmission shaft (13), seal cover (4) is socketed on friction sleeve (7) and goes up and the top end face position being encapsulated in granulating cutter flange seat (6) at material cylinder (1) inner cap, sealed by seal (8) between friction sleeve (7) and granulating cutter flange seat (6) flange hole inwall, by seal (8) in granulating cutter flange seat (6) flange hole, friction sleeve outer wall, granulating cutter flange seat (6) flange hole inwall, seal cover (4) is composition one toroidal cavity (12) jointly, granulating cutter flange seat (6) also offers two radial direction through hole that toroidal cavity (12) is connected with the external world in material cylinder outer fix, be respectively import (11) and outlet (10), its middle outlet (10) and toroidal cavity (12) connection place are positioned at toroidal cavity (12) minimum point in radial axle cross section.
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 relative 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 spacing in the axial direction by being resisted against on step bulge loop.
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 |
|---|---|---|---|
| CN201310742592.XA CN103706292B (en) | 2013-12-30 | 2013-12-30 | The granulating cutter hermetically-sealed construction of wet mixing pelletizer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310742592.XA CN103706292B (en) | 2013-12-30 | 2013-12-30 | The granulating cutter hermetically-sealed construction of wet mixing pelletizer |
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| CN103706292A CN103706292A (en) | 2014-04-09 |
| CN103706292B true CN103706292B (en) | 2016-01-27 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105056832B (en) * | 2015-07-22 | 2017-06-20 | 哈尔滨纳诺机械设备有限公司 | A kind of dry granulating machine |
| CN106390857B (en) * | 2016-08-29 | 2023-02-28 | 常州一步干燥设备有限公司 | Wet granulator cutting seal structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1651130A (en) * | 2004-11-30 | 2005-08-10 | 方亨志 | Wet mixing pelletizer having tangent stirring blade |
| CN2745642Y (en) * | 2004-11-30 | 2005-12-14 | 方亨志 | Wet mixing pelletizer having updissembling type sealing device |
| CN201912913U (en) * | 2011-01-21 | 2011-08-03 | 辽宁工业大学 | Stirring shaft sealing structure of stirred tank |
| CN203635157U (en) * | 2013-12-30 | 2014-06-11 | 浙江迦南科技股份有限公司 | Granulating knife sealing structure of wet mixing granulator |
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2013
- 2013-12-30 CN CN201310742592.XA patent/CN103706292B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1651130A (en) * | 2004-11-30 | 2005-08-10 | 方亨志 | Wet mixing pelletizer having tangent stirring blade |
| CN2745642Y (en) * | 2004-11-30 | 2005-12-14 | 方亨志 | Wet mixing pelletizer having updissembling type sealing device |
| CN201912913U (en) * | 2011-01-21 | 2011-08-03 | 辽宁工业大学 | Stirring shaft sealing structure of stirred tank |
| CN203635157U (en) * | 2013-12-30 | 2014-06-11 | 浙江迦南科技股份有限公司 | Granulating knife sealing structure of wet mixing granulator |
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| CN103706292A (en) | 2014-04-09 |
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