CN216692163U - Grinding roller device with air seal protection and flour mill - Google Patents
Grinding roller device with air seal protection and flour mill Download PDFInfo
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- CN216692163U CN216692163U CN202122845016.0U CN202122845016U CN216692163U CN 216692163 U CN216692163 U CN 216692163U CN 202122845016 U CN202122845016 U CN 202122845016U CN 216692163 U CN216692163 U CN 216692163U
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- grinding roller
- grinding
- seal
- seal assembly
- sealing
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Abstract
The utility model discloses a grinding roller device with air seal protection and a flour mill, wherein the grinding roller device comprises: the grinding roller shaft, locate grinding roller and the grinding roller cover at grinding roller shaft both ends and locate the grinding roller outside damping subassembly, the grinding roller passes through damping subassembly and is connected with the grinding roller cover is floated, damping subassembly and the unsteady junction of grinding roller cover are sealed through seal assembly, form sealed chamber between damping subassembly, grinding roller cover and the seal assembly, be equipped with the air flue with sealed chamber intercommunication in grinding roller cover inside, through the inlet end input compressed air of air flue. The utility model leads the sealing cavity to form a positive pressure cavity by inputting compressed air, thereby effectively preventing dusty gas outside the grinding roller device from entering the inner cavity of the grinding roller device. Further effectively protecting the bearing lubricating grease (oil) in the grinding roller device from being polluted, greatly prolonging the service life of the bearing, ensuring that the production can be smoothly carried out and having good economic benefit.
Description
Technical Field
The utility model belongs to the field of grinding roller manufacturing of a flour mill, relates to a grinding roller device, and particularly relates to a grinding roller device with air seal protection and a flour mill.
Background
The grinding roller device of the existing flour mill is that a grinding roller and a grinding roller shaft are supported on a grinding roller sleeve through a bearing, the grinding roller sleeve is a rigid supporting piece, and the grinding roller shaft rotate together. The grinding roller device of the utility model is as follows: the grinding roller rotates by rubbing with the grinding ring, the grinding roller shaft does not rotate together with the grinding roller, and the upper end part of the grinding roller is in floating connection with the grinding roller sleeve through the grinding roller barrel, the damping vibration absorption wear-resistant sleeve, the supporting sleeve and the bearing positioning sleeve. Due to the floating connection, there is a gap between the mating parts, which, although sealed by the sealing element, is worn after a long period of use, which increases the mating gap, causing powder to possibly enter the grinding roller and affecting the service life of the grinding roller.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a grinding roller device with air seal protection and a flour mill.
In order to achieve the purpose, the technical scheme of the utility model is as follows:
in one aspect, the present disclosure provides a grinding roller apparatus with gas seal protection, comprising: the grinding roll shaft, locate grinding roll and the grinding roll cover at grinding roll shaft both ends and locate the outside damping subassembly of grinding roll shaft, the grinding roll floats through damping subassembly and grinding roll cover and is connected, and the unsteady junction of damping subassembly and grinding roll cover is sealed through seal assembly, forms sealed chamber between damping subassembly, grinding roll cover and the seal assembly, is equipped with the air flue that communicates with sealed chamber inside the grinding roll cover, through the inlet end input compressed air of air flue.
The grinding roller device with air seal protection has the advantages that the vibration damping component, the grinding roller sleeve and the sealing component form a positive pressure cavity by inputting compressed air, so that dust-containing gas outside the grinding roller device can be effectively prevented from entering the inner cavity of the grinding roller device. Further effectively protecting the bearing lubricating grease (oil) in the grinding roller device from being polluted, greatly prolonging the service life of the bearing, ensuring that the production can be smoothly carried out and having good economic benefit.
On the basis of the technical scheme, the following improvements can be made:
as the preferred scheme, the connecting end of the grinding roller sleeve is provided with a mounting hole, and a floating connecting piece of the vibration reduction and damping assembly extends into the mounting hole and is connected with the grinding roller sleeve in a sealing mode through a sealing assembly.
Adopt above-mentioned preferred scheme, form the sealed chamber with the air flue intercommunication between floating connection spare, seal assembly and the mounting hole, rational in infrastructure, sealing performance is good.
Preferably, the seal assembly comprises: and the inner sealing assembly is arranged between the inner wall of the floating connecting piece and the outer wall of the grinding roller shaft and is used for sealing the floating connecting piece and the grinding roller shaft.
Adopt above-mentioned preferred scheme, improve the sealing performance between unsteady connecting piece inner wall and the grinding roller axle outer wall.
Preferably, the inner seal assembly comprises: one or more than two sealing rings which are arranged in a stacked mode.
With the preferred solution described above, the inner seal assembly is selected to have a suitable number of sealing rings, depending on the particular situation.
Preferably, a seal mounting step is provided on the floating connection member, the inner seal assembly being carried on the seal mounting step.
Adopt above-mentioned preferred scheme, improve interior seal assembly's installation fastness.
Preferably, the floating connector is in clearance fit with the mounting hole.
Adopt above-mentioned preferred scheme, the floating connection spare is reasonable with the mounting hole cooperation.
Preferably, the seal assembly further comprises: and the outer sealing assembly is arranged in the sealing element mounting groove.
By adopting the preferable scheme, the sealing performance between the floating connecting piece and the mounting hole is further improved. The inner and outer dual sealing assemblies are adopted for sealing, so that the sealing effect is improved, and the influence on the performance of the grinding roller device caused by the fact that external dust-containing gas enters the inner cavity of the grinding roller device is prevented.
Preferably, the outer seal assembly includes: one or more than two sealing rings which are arranged in a stacked mode.
With the above preferred solution, the outer seal assembly is selected to have a suitable number of seal rings according to the specific situation.
Preferably, the height of the groove opening of the sealing element mounting groove is gradually reduced along the extension direction of the opening of the sealing element mounting groove to the groove bottom of the sealing element mounting groove, and the outer contour of the outer sealing assembly is matched with the contour of the inner wall of the groove of the sealing element mounting groove.
By adopting the preferable scheme, the sealing performance of the outer sealing assembly is improved.
In another aspect, the present invention further discloses a pulverizer, comprising: any one of the above grinding roller assemblies.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a sectional view of a grinding roller apparatus provided in an embodiment of the present invention.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
Wherein: 1-grinding roller shaft, 2-grinding roller, 3-grinding roller sleeve, 31-grinding roller sleeve mounting hole, 32-sealing element mounting groove, 41-first bearing, 42-second bearing, 5-grinding roller barrel, 6-bearing positioning sleeve, 7-supporting sleeve, 8-damping vibration absorption sleeve, 91-inner sealing component, 92-outer sealing component, 11-locking nut, 12-floating connecting piece, 121-sealing element mounting step, 13-joint, a-sealing cavity and b-air channel.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Meanwhile, the expressions "first", "second", etc. are used only for the purpose of distinguishing a plurality of configurations, and do not limit the order between the configurations or other features.
Also, the expression "comprising" an element is an expression of "open" which merely means that there is a corresponding component, and should not be interpreted as excluding additional components.
In order to achieve the object of the utility model, in some embodiments of a grinding roller assembly and a mill with gas seal protection, as shown in fig. 1 and 2, the grinding roller assembly comprises: the grinding roller comprises a grinding roller shaft 1, a grinding roller 2 and a grinding roller sleeve 3 which are arranged at two ends of the grinding roller shaft 1, and a vibration damping component arranged on the outer side of the grinding roller shaft 1. The grinding roller sleeve 3 is arranged on the upper portion of the grinding roller shaft 1, the grinding roller sleeve 3 is arranged on the lower portion of the grinding roller shaft 1, the grinding roller 2 is connected with the grinding roller shaft 1 through a first bearing 41, and the grinding roller 2 is connected with the grinding roller sleeve 3 in a floating mode through a vibration damping assembly.
The floating connection part of the vibration attenuation damping assembly and the grinding roller sleeve 3 is sealed through a sealing assembly, a sealing cavity a is formed among the vibration attenuation damping assembly, the grinding roller sleeve 3 and the sealing assembly, an air passage b communicated with the sealing cavity a is arranged in the grinding roller sleeve 3, and compressed air is input through the air inlet end of the air passage b.
The upper end part of the grinding roller is connected with the grinding roller sleeve 3 in a floating way through the grinding roller barrel 5, the damping vibration absorption wear-resistant sleeve 8, the supporting sleeve 7 and the bearing positioning sleeve 6. The bearing retainer 6 is connected to the grinding roller shaft 1 via a second bearing 42.
The grinding roller device with air seal protection has the advantages that the vibration damping and damping component, the grinding roller sleeve 3 and the sealing cavity a formed between the sealing components form a positive pressure cavity by inputting compressed air, so that dust-containing gas outside the grinding roller device can be effectively prevented from entering the inner cavity of the grinding roller device. Further effectively protecting the bearing lubricating grease (oil) in the grinding roller device from being polluted, greatly prolonging the service life of the bearing, ensuring that the production can be smoothly carried out and having good economic benefit.
In order to further optimize the implementation of the utility model, in other embodiments, the remaining features are the same, except that the grinding roller sleeve 3 connection end is provided with a mounting hole 31, and the floating connection piece 12 of the vibration damping assembly extends into the mounting hole 31 and is connected with the grinding roller sleeve 3 in a sealing manner through a sealing assembly.
With the adoption of the embodiment, the following beneficial effects are achieved: a sealing cavity a communicated with an air passage b is formed among the floating connecting piece 12, the sealing assembly and the grinding roller sleeve mounting hole 31, and the structure is reasonable and the sealing performance is good.
Further, on the basis of the above embodiment, the seal assembly includes: and the inner sealing assembly 91 is arranged between the inner wall of the floating connecting piece 12 and the outer wall of the grinding roller shaft 1 and used for sealing the floating connecting piece 12 and the grinding roller shaft 1.
With the adoption of the embodiment, the following beneficial effects are achieved: the sealing performance between the inner wall of the floating connecting piece 12 and the outer wall of the grinding roller shaft 1 is improved.
Further, on the basis of the above embodiment, the inner seal assembly 91 includes: two sealing rings arranged in a stacked manner.
With the adoption of the embodiment, the following beneficial effects are achieved: the sealing performance is improved. Of course, in other embodiments, the number of sealing rings in the inner sealing assembly 91 can be adjusted according to specific situations, and can be one, three, or four, etc.
Further, on the basis of the above embodiment, a seal mounting step 121 is provided on the floating connector 12, and the inner seal assembly 91 is carried on the seal mounting step 121.
With the adoption of the embodiment, the following beneficial effects are achieved: the mounting robustness of the inner seal assembly 91 is improved.
Further, on the basis of the above embodiment, the floating connector 12 is in clearance fit with the mounting hole 31.
With the adoption of the embodiment, the following beneficial effects are achieved: the floating connection 12 fits snugly into the mounting hole 31.
Further, on the basis of the above embodiment, the seal assembly further includes: the outer sealing assembly 92 is provided with a sealing element mounting groove 32 on the side wall of the grinding roller sleeve mounting hole 31, and the outer sealing assembly 92 is mounted in the sealing element mounting groove 32.
By adopting the embodiment, the method has the following beneficial effects: further improving the sealing performance between the floating connection piece 12 and the mounting hole 31 of the grinding roller sleeve 3. The inner and outer dual sealing assemblies are adopted for sealing, so that the sealing effect is improved, and the influence on the performance of the grinding roller device caused by the fact that external dust-containing gas enters the inner cavity of the grinding roller device is prevented.
Further, on the basis of the above embodiment, the outer seal assembly 92 includes: a seal ring.
With the adoption of the embodiment, the following beneficial effects are achieved: the installation is convenient. Of course, in other embodiments, the number of sealing rings in the inner sealing assembly 91 can be adjusted according to specific situations, and may be two, three, four, etc.
Further, in some embodiments, in order to improve structural stability, the horizontal centerline of the seal ring of the outer seal assembly 92 is in the same plane as the contact surfaces of the two seal rings of the inner seal assembly 91.
Further, on the basis of the above embodiment, the height of the notch of the packing installation groove 32 is gradually reduced along the direction in which the packing installation groove 32 is opened to the bottom of the groove, and the outer contour of the outer seal member 92 is matched with the contour of the inner wall of the groove of the packing installation groove 32.
By adopting the preferable scheme, the sealing performance of the outer sealing assembly is improved.
In order to further optimize the implementation effect of the utility model, in other embodiments, the rest of the characteristics are the same, except that a joint 13 for communicating with an external compressed air device is installed at the air inlet end of the air passage b.
With the adoption of the embodiment, the following beneficial effects are achieved: the compressed air is conveniently input into the sealing cavity a. The joint 13 may be, but is not limited to, a rotary joint.
It is noted that the floating connection 12 is referred to in this invention as the bearing retainer 6 in this particular embodiment. An inner seal assembly 91 and an outer seal assembly 92 are mounted on the upper part of the bearing locating sleeve 6 and the lower part of the grinding roller sleeve 3 to form a sealed chamber a.
In some other embodiments, the present invention also discloses a mill, comprising: the grinding roller device disclosed in any one of the above embodiments. In particular embodiments, the following mounting structures or mounting means may be, but are not limited to. The grinding roller sleeve 3 is supported on a plum blossom frame of the flour mill through a cross arm shaft, and the locking nut 11 is arranged at the top of the grinding roller shaft 1 and enables the grinding roller shaft 1 to be supported on the grinding roller sleeve 3.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the present invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the scope of the present invention.
Meanwhile, in the description of the present invention, it is to be understood that the terms "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
While there have been shown and described what are at present considered to be the basic and essential features and advantages of the utility model, it will be understood by those skilled in the art that the utility model is not limited by the embodiments described above, which are merely illustrative of the principles of the utility model, but various changes and modifications may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.
Claims (10)
1. A grinding roll apparatus with gas seal protection, comprising: the grinding roller shaft, locate grinding roller and grinding roller cover at grinding roller shaft both ends and locate the grinding roller outside damping subassembly, the grinding roller passes through damping subassembly and grinding roller cover floating connection, its characterized in that, damping subassembly is sealed through seal assembly with the unsteady junction of grinding roller cover, form sealed chamber between damping subassembly, grinding roller cover and the seal assembly the grinding roller cover inside is equipped with the air flue with sealed chamber intercommunication, through the inlet end input compressed air of air flue.
2. The grinding roll apparatus of claim 1, wherein the grinding roll sleeve connection end is provided with a mounting bore, and wherein the floating connection member of the vibration damping assembly extends into the mounting bore and is sealingly connected to the grinding roll sleeve by the seal assembly.
3. The grinding roll apparatus of claim 2, wherein the seal assembly comprises: and the inner sealing assembly is arranged between the inner wall of the floating connecting piece and the outer wall of the grinding roller shaft and is used for sealing the floating connecting piece and the grinding roller shaft.
4. The grinding roll apparatus of claim 3, wherein the inner seal assembly comprises: one or more than two sealing rings which are arranged in a stacked mode.
5. The grinding roll apparatus of claim 3, wherein a seal mounting step is provided on the floating connection member, the inner seal assembly being carried on the seal mounting step.
6. The grinding roll apparatus of claim 3, wherein the floating connectors are clearance fit with the mounting openings.
7. The grinding roll apparatus of claim 6, wherein the seal assembly further comprises: and the outer sealing assembly is arranged in the sealing element mounting groove.
8. The grinding roll apparatus of claim 7, wherein the inner seal assembly comprises: one or more than two sealing rings which are arranged in a stacked mode.
9. The grinding roll apparatus of claim 8, wherein the seal mounting groove has a progressively decreasing groove opening height in a direction extending from the seal mounting groove opening to a groove bottom thereof, and wherein the outer seal assembly has an outer contour that conforms to a groove inner wall contour of the seal mounting groove.
10. A mill, characterized in that it comprises: the grinding roll apparatus of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122845016.0U CN216692163U (en) | 2021-11-19 | 2021-11-19 | Grinding roller device with air seal protection and flour mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122845016.0U CN216692163U (en) | 2021-11-19 | 2021-11-19 | Grinding roller device with air seal protection and flour mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216692163U true CN216692163U (en) | 2022-06-07 |
Family
ID=81834163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122845016.0U Active CN216692163U (en) | 2021-11-19 | 2021-11-19 | Grinding roller device with air seal protection and flour mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216692163U (en) |
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2021
- 2021-11-19 CN CN202122845016.0U patent/CN216692163U/en active Active
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