CN217603349U - Powder (mixing) shaft rotary seal circle - Google Patents
Powder (mixing) shaft rotary seal circle Download PDFInfo
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- CN217603349U CN217603349U CN202221942819.6U CN202221942819U CN217603349U CN 217603349 U CN217603349 U CN 217603349U CN 202221942819 U CN202221942819 U CN 202221942819U CN 217603349 U CN217603349 U CN 217603349U
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- modified polytetrafluoroethylene
- seal lip
- powder
- spring
- lip
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Abstract
The utility model relates to a sealing washer technical field especially relates to a rotatory sealing washer of powder (mixing) shaft, the upper end is provided with the second recess in the exoskeleton, the lower extreme is provided with first recess in the exoskeleton, modified polytetrafluoroethylene seal lip lower extreme joint sets up in the first recess, be provided with the arc wall on the modified polytetrafluoroethylene seal lip, the spring housing is established on the modified polytetrafluoroethylene seal lip and be located the arc wall adopts modified polytetrafluoroethylene to reduce the frictional strength with the pivot contact through the seal lip, and skeleton and between the exoskeleton simultaneously, the thermal stability and the precision of sealing washer size have been improved to the setting of polytetrafluoroethylene seal lip, and the spring has improved the followup nature of modified polytetrafluoroethylene seal lip counter shaft, makes like this that modified polytetrafluoroethylene seal lip closely cooperates with the axle in the powder stirring, and greatly reduced leakage rate has improved sealing washer life.
Description
Technical Field
The utility model relates to a sealing washer technical field especially relates to a rotatory sealing washer of powder (mixing) shaft.
Background
Along with the development of technology in recent years, modern food machinery's rotational speed is higher and higher, require lubricating system to simplify simultaneously, reduce environmental pollution, promote clean performance, especially powder mixer shaft rotational speed reaches 10000 revolutions per minute, the tradition has oil lubrication system to receive the challenge, especially in the trade such as medical treatment, food, clean type self-lubricating material demand is bigger and bigger, traditional rubber is big under oil-free lubrication friction coefficient, life is low, in the prior art, traditional rubber oil seal needs to have oil lubrication, tradition polytetrafluoroethylene oil seal axle followability is not high in the powder stirring, and life all is short, to current problem, provide a powder (mixing) shaft rotary seal circle.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects of low cleanliness and short service life in the prior art and providing a rotary sealing ring of a powder stirring shaft.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
design a rotatory sealing washer of powder (mixing) shaft, including exoskeleton, spring, modified polytetrafluoroethylene seal lip, wherein:
the improved outer frame is characterized in that a second groove is formed in the inner upper end of the outer frame, a first groove is formed in the inner lower end of the outer frame, the lower end of the modified polytetrafluoroethylene sealing lip is clamped in the first groove, an arc-shaped groove is formed in the modified polytetrafluoroethylene sealing lip, and the spring sleeve is arranged on the modified polytetrafluoroethylene sealing lip and located in the arc-shaped groove.
Preferably, still include the inner frame, the inner frame joint sets up in the second recess and the lower extreme with modified polytetrafluoroethylene sealing lip contradicts.
Preferably, the spring is a circular middle-loading spring.
Preferably, the outer skeleton with the department of contradicting of modified polytetrafluoroethylene seal lip has seted up conflict fillet, modified polytetrafluoroethylene seal lip corresponds conflict fillet department is provided with the recess.
Preferably, the inner frame with the outer frame reaches modified polytetrafluoroethylene seal lip contact edge department has all seted up supplementary fillet.
The utility model provides a pair of rotatory sealing washer of powder (mixing) shaft, beneficial effect lies in:
adopt modified polytetrafluoroethylene to reduce the frictional strength with the pivot contact through the seal lip, frictional heating has been reduced, polytetrafluoroethylene seal lip sets up between inner frame and the outer frame simultaneously, the thermal stability and the precision of sealing washer size have been improved, the spring setting is between modified polytetrafluoroethylene seal lip and outer frame simultaneously, the spring has improved the follow-up nature of modified polytetrafluoroethylene seal lip counter shaft, make modified polytetrafluoroethylene seal lip mouth closely cooperate with the axle in the powder stirring like this, greatly reduced reveals the rate, seal ring life has been improved.
Drawings
Fig. 1 is a schematic view of a cross-sectional structure of a rotary sealing ring of a powder stirring shaft according to the present invention.
Fig. 2 is the schematic view of the cross-sectional structure of the outer frame of the rotary sealing ring of the powder stirring shaft of the present invention.
Fig. 3 is the schematic view of the inner frame profile structure of the rotary sealing ring of the powder stirring shaft of the present invention.
Fig. 4 is a schematic view of a cross-sectional structure of a modified ptfe seal lip of a rotary seal ring for a powder stirring shaft of the present invention.
In the figure: the outer frame 1, the interference fillet 11, the first groove 12, the second groove 13, the inner frame 2, the auxiliary fillet 21, the spring 3, the modified polytetrafluoroethylene sealing lip 4, the first fillet 41, the arc-shaped groove 42, the second fillet 43 and the third fillet 44.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Example 1
Referring to fig. 1-4, a powder stirring shaft rotary seal ring comprises an outer framework 1, a spring 3 and a modified polytetrafluoroethylene seal lip 4, wherein:
the upper end is provided with second recess 13 in the exoskeleton 1, the lower extreme is provided with first recess 12 in the exoskeleton 1, the joint setting of 4 lower extremes of modified polytetrafluoroethylene seal lip is in first recess 12, be provided with arc wall 42 on the modified polytetrafluoroethylene seal lip 4, 3 covers of spring are established on modified polytetrafluoroethylene seal lip 4 and are located arc wall 42, spring 3 is circular well load spring, modified polytetrafluoroethylene seal lip 4 reduces the frictional strength with the pivot contact, frictional heating has been reduced, still include inner frame 2, inner frame 2 joint sets up in second recess 13 and the lower extreme contradicts with modified polytetrafluoroethylene seal lip 4, exoskeleton 1, inner frame 2 is the stainless steel, it is as an organic whole with modified polytetrafluoroethylene seal lip 4 pressfitting, inner frame 2 has improved the bulk rigidity, guarantee the stability under the high-speed high temperature environment, and show improvement life, spring 3 has improved the follow-up nature of modified polytetrafluoroethylene seal lip 4 counter shaft, make modified polytetrafluoroethylene seal lip 4 mouth closely cooperate with the axle in the powder stirring like this, the leak rate is greatly reduced, sealing washer life is improved.
The auxiliary fillet 21 has all been seted up to inner frame 2 and outer frame 1 and 4 contact edges of modified polytetrafluoroethylene seal lip, and simultaneously, second fillet 43, third fillet 44 have been seted up to corresponding on the modified polytetrafluoroethylene seal lip 4, can show the support elasticity that improves the internal diameter, is provided with first fillet 41 with the load point department of axle contact on the modified polytetrafluoroethylene seal lip 4, makes inseparabler with the contact of axle, reduces to reveal, and is more reliable and more stable.
Adopt modified polytetrafluoroethylene can reduce the frictional strength with the pivot contact through the seal lip, frictional heating has been reduced, polytetrafluoroethylene seal lip 4 sets up between inner frame 2 and exoskeleton 1 simultaneously, the thermal stability and the precision of sealing washer size have been improved, spring 3 sets up between modified polytetrafluoroethylene seal lip 4 and exoskeleton 1 simultaneously, spring 3 has improved the following nature of 4 counter shafts of modified polytetrafluoroethylene seal lip, make 4 lips of modified polytetrafluoroethylene seal lip closely cooperate with the axle in the powder stirring like this, greatly reduced leakage rate, seal washer life has been improved.
Example 2
According to embodiment 1, the friction strength of the contact with the rotating shaft can be reduced by adopting the modified polytetrafluoroethylene sealing lip in embodiment 1, and the frictional heat is reduced, the follow-up performance of the modified polytetrafluoroethylene sealing lip 4 to the shaft is improved by the spring 3, so that the lip of the modified polytetrafluoroethylene sealing lip 4 is tightly matched with the shaft in powder stirring, however, a contact corner between the outer framework 1 and the modified polytetrafluoroethylene sealing lip 4 is formed, the modified polytetrafluoroethylene sealing lip 4 can be damaged due to the movement of the modified polytetrafluoroethylene sealing lip 4, and referring to fig. 1-4, as another preferred embodiment of the invention, on the basis of embodiment 1, a contact fillet 11 is formed at the contact part between the outer framework 1 and the modified polytetrafluoroethylene sealing lip 4, a groove is formed at the position of the modified polytetrafluoroethylene sealing lip 4, and the tearing force of the outer framework 1 to the modified polytetrafluoroethylene sealing lip 4 can be obviously reduced through the fillet 11 and the groove, so that the contact polytetrafluoroethylene sealing lip 4 is more stably modified, and the service life is longer.
The working principle is as follows: during the use, establish this sealing washer cover epaxial, make modified polytetrafluoroethylene seal lip 4 and axle contact, exoskeleton 1, inner frame 2 is the stainless steel, it is as an organic whole with modified polytetrafluoroethylene seal lip 4 pressfitting, inner frame 2 has improved whole rigidity, guarantee the stability under the high-speed high temperature environment, and show improvement life, spring 3 has improved the following nature of modified polytetrafluoroethylene seal lip 4 counter shaft, make modified polytetrafluoroethylene seal lip 4 lip closely cooperate with the axle in the powder stirring like this, greatly reduced the rate of revealing, seal ring life has been improved, modified polytetrafluoroethylene seal lip 4 is last to correspond and has seted up second fillet 43, third fillet 44, can show the elasticity that supports that improves the internal diameter, modified polytetrafluoroethylene seal lip 4 is last to be provided with first fillet 41 with the load point department of axle contact, make the contact with the axle inseparabler, reduce to reveal, and more stable and reliable, through fillet 11 and recess, can show and reduce the tearing strength of outer frame 1 to modified polytetrafluoroethylene seal lip 4, make modified polytetrafluoroethylene seal lip 4 more stable, life is more of a specified duration.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. The utility model provides a rotatory sealing washer of powder (mixing) shaft which characterized in that, includes exoskeleton (1), spring (3), modified polytetrafluoroethylene seal lip (4), wherein:
the improved outer frame structure is characterized in that a second groove (13) is formed in the inner upper end of the outer frame (1), a first groove (12) is formed in the inner lower end of the outer frame (1), the lower end of the modified polytetrafluoroethylene sealing lip (4) is clamped and arranged in the first groove (12), an arc-shaped groove (42) is formed in the modified polytetrafluoroethylene sealing lip (4), and the spring (3) is sleeved on the modified polytetrafluoroethylene sealing lip (4) and located in the arc-shaped groove (42).
2. The rotary sealing ring for the powder stirring shaft according to claim 1, further comprising an inner frame (2), wherein the inner frame (2) is clamped in the second groove (13) and the lower end of the inner frame abuts against the modified polytetrafluoroethylene sealing lip (4).
3. The rotary sealing ring for powder stirring shaft according to claim 1, wherein the spring (3) is a circular middle-loaded spring.
4. The rotary sealing ring for the powder stirring shaft according to claim 1, wherein a contact fillet (11) is formed at a contact position of the outer skeleton (1) and the modified polytetrafluoroethylene sealing lip (4), and a groove is formed at a position of the modified polytetrafluoroethylene sealing lip (4) corresponding to the contact fillet (11).
5. The rotary sealing ring for the powder stirring shaft according to claim 2, wherein auxiliary round corners (21) are formed at the contact corners of the inner skeleton (2), the outer skeleton (1) and the modified polytetrafluoroethylene sealing lip (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221942819.6U CN217603349U (en) | 2022-07-27 | 2022-07-27 | Powder (mixing) shaft rotary seal circle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221942819.6U CN217603349U (en) | 2022-07-27 | 2022-07-27 | Powder (mixing) shaft rotary seal circle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217603349U true CN217603349U (en) | 2022-10-18 |
Family
ID=83593284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221942819.6U Active CN217603349U (en) | 2022-07-27 | 2022-07-27 | Powder (mixing) shaft rotary seal circle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217603349U (en) |
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2022
- 2022-07-27 CN CN202221942819.6U patent/CN217603349U/en active Active
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