CN216936300U - Fine grinding machine - Google Patents

Abstract

The utility model discloses a fine grinding machine, comprising: the grinding assembly comprises a driving part, a cantilever shaft and a grinding disc, the first end of the cantilever shaft is connected with the driving part, the second end of the cantilever shaft extends into the cylinder, the grinding disc is located in the cylinder and is arranged on the cantilever shaft, the driving part is used for driving the grinding disc on the cantilever shaft to rotate relative to the cylinder, the supporting assembly comprises a supporting seat and a housing, the supporting seat is located between the cylinder and the driving part, the cantilever shaft is pivotally connected with the supporting seat, and the housing is arranged at the upper end of the supporting seat and detachably connected with the supporting seat. The fine grinding machine is convenient to maintain and good in practicability.

Description

Fine grinding machine

Technical Field

The utility model relates to the technical field of coal slurry grinding, in particular to a fine grinding machine.

Background

The coal water slurry is a coal-based liquid fuel and gasification raw material which are prepared by coal, water and additives according to a certain proportion, can be used for coal substitution and oil substitution combustion of industrial and power station boilers as the liquid fuel, can be used for coal water slurry gasification to prepare synthesis gas as the gasification raw material, and then is used for synthesizing chemical products such as ammonia, methanol, olefin, oil products, natural gas and the like through a subsequent process. The coal water slurry needs to be ground by a fine grinding machine in the preparation process, but the fine grinding machine in the related technology has unreasonable structural design, is inconvenient for later maintenance work and has poor practicability.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.

Therefore, the embodiment of the utility model provides the fine grinding machine which is convenient to maintain and good in practicability.

A fine grinding machine according to an embodiment of the present invention includes: a cylinder body; the grinding assembly comprises a driving part, a cantilever shaft and a grinding disc, wherein a first end of the cantilever shaft is connected with the driving part, a second end of the cantilever shaft extends into the cylinder, the grinding disc is positioned in the cylinder and arranged on the cantilever shaft, and the driving part is used for driving the grinding disc on the cantilever shaft to rotate relative to the cylinder; the supporting assembly comprises a supporting seat and a housing, the supporting seat is located between the barrel and the driving part, the cantilever shaft is pivotally connected with the supporting seat, and the housing is arranged at the upper end of the supporting seat and detachably connected with the supporting seat.

According to the fine grinding machine provided by the embodiment of the utility model, the cantilever shaft is pivotally connected with the supporting seat, so that the stability of the fine grinding machine during rotation can be improved, and the housing is arranged at the upper end of the supporting seat and is detachably connected with the supporting seat, so that the problem of interference of the housing during maintenance of the fine grinding machine is avoided, an operator can conveniently maintain parts in the housing, and the practicability of the fine grinding machine is improved.

In some embodiments, the housing and the support base are connected by fasteners.

In some embodiments, the support seat includes a seat body and a rotation support portion, the rotation support portion is disposed on the seat body, the cantilever shaft is pivotally connected to the rotation support portion, and the support assembly further includes a rib plate, which is located in the housing and connected to the rotation support portion.

In some embodiments, the plurality of rib plates are arranged at intervals around the circumference of the rotation support part.

In some embodiments, the rib plate is provided with a through hole.

In some embodiments, the driving member includes a first driving wheel, a second driving wheel, a driving belt and a driving motor, the first driving wheel is disposed at the first end of the cantilever shaft, the second driving wheel is disposed on the driving motor, and the driving belt is wound around the first driving wheel and the second driving wheel.

In some embodiments, a feed inlet and a discharge outlet are arranged on the barrel, the feed inlet is arranged at one end of the barrel, which is close to the supporting component, and the discharge outlet is arranged at one end of the barrel, which is far away from the supporting component.

In some embodiments, the grinding disc is provided with a shaft hole and a hollow hole, the axis of the shaft hole coincides with the axis of the grinding disc, the hollow hole has a first wall surface and a second wall surface, the first wall surface and the second wall surface are opposite and spaced along the circumferential direction of the grinding disc, in a cross section orthogonal to the axial direction of the grinding disc, the projection of the first wall surface and the projection of the second wall surface are both arc-shaped, and the curvature radius of the projection of the first wall surface is greater than the curvature radius of the projection of the second wall surface.

In some embodiments, the first wall surface is a circular arc surface, and/or the second wall surface is a circular arc surface.

In some embodiments, the plurality of the hollow holes are arranged at intervals along the circumferential direction of the grinding disc.

Drawings

FIG. 1 is a schematic view of a refiner of an embodiment of the present invention.

FIG. 2 is a schematic internal view of a refiner of an embodiment of the present invention.

FIG. 3 is a cross-sectional view of a refiner of an embodiment of the present invention.

FIG. 4 is a side view of a refiner of an embodiment of the present invention.

FIG. 5 is a schematic view of a grinding disk of a refiner of an embodiment of the present invention.

Reference numerals:

1. a barrel; 11. a feed inlet; 12. a discharge port;

2. a grinding assembly; 21. a drive member; 211. a first drive pulley; 212. a second transmission wheel; 213. a transmission belt; 214. A drive motor; 22. a cantilever shaft; 23. a grinding disc; 231. hollowing out holes; 2311. a first wall surface; 2312. a second wall surface; 2313. a third wall surface; 2314. a fourth wall surface; 232. a shaft hole;

3. a support assembly; 31. a supporting seat; 311. a base body; 312. a rotation support; 32. a housing; 33. a rib plate; 331. and a through hole.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

A fine grinding machine according to an embodiment of the present invention is described below with reference to the drawings.

As shown in fig. 1 to 5, a fine grinding machine according to an embodiment of the present invention includes: barrel 1, grinding component 2 and supporting component 3. The grinding assembly 2 comprises a driving part 21, a cantilever shaft 22 and a grinding disc 23, and the supporting assembly 3 comprises a supporting seat 31 and a casing 32.

A first end (e.g., a left end of the cantilever shaft 22 in fig. 3) of the cantilever shaft 22 is connected to the driving component 21, a second end (e.g., a right end of the cantilever shaft 22 in fig. 3) of the cantilever shaft 22 extends into the cylinder 1, the polishing disc 23 is located in the cylinder 1 and is disposed on the cantilever shaft 22, and the driving component 21 is configured to drive the polishing disc 23 on the cantilever shaft 22 to rotate relative to the cylinder 1. The support seat 31 is located between the cylinder 1 and the driving member 21, the cantilever shaft 22 is pivotally connected to the support seat 31, and the housing 32 is provided at the upper end of the support seat 31 and detachably connected to the support seat 31.

According to the fine grinding machine provided by the embodiment of the utility model, the cantilever shaft 22 is pivotally connected with the supporting seat 31, so that the stability of the fine grinding machine during rotation can be improved, and the housing 32 is arranged at the upper end of the supporting seat 31 and is detachably connected with the supporting seat 31, so that the problem of interference of the housing 32 during maintenance of the fine grinding machine is avoided, an operator can conveniently maintain parts in the housing 32, and the practicability of the fine grinding machine is improved.

Alternatively, the housing 32 and the support seat 31 are connected by a fastener, for example, the housing 32 and the support seat 31 are connected by a fastening bolt, so that the mounting and dismounting of the housing 32 and the support seat 31 are facilitated, and the convenience in maintenance of the fine grinding machine is further facilitated.

Further, as shown in fig. 2 and fig. 3, the supporting seat 31 includes a seat body 311 and a rotation supporting portion 312, the rotation supporting portion 312 is disposed on the seat body 311, the cantilever shaft 22 is pivotally connected to the rotation supporting portion 312, the supporting assembly 3 further includes a rib plate 33, and the rib plate 33 is disposed in the housing 32 and connected to the rotation supporting portion 312. According to the fine grinding machine provided by the embodiment of the utility model, the stability of the cantilever shaft 22 in rotation can be improved by arranging the rib plate 33, the structural strength of the supporting component 3 is higher, and the service life of the fine grinding machine is prolonged.

Specifically, as shown in fig. 2 and 3, there are a plurality of rib plates 33, and the plurality of rib plates 33 are arranged at intervals around the circumferential direction of the rotation support portion 312, so that the structural strength of the support assembly 3 can be further improved.

Alternatively, as shown in fig. 2 and 3, the rib plate 33 is provided with a plurality of through holes 331, for example, the through holes 331 may be multiple, and the plurality of through holes 331 are arranged on the rib plate 33 at intervals, and the fine grinding machine according to the embodiment of the present invention may reduce the weight of the rib plate 33 by providing the through holes 331, and facilitate the hand of the operator to pass through, thereby improving the practicability of the fine grinding machine.

In some embodiments, as shown in fig. 2 to 4, the driving member 21 includes a first driving wheel 211, a second driving wheel 212, a driving belt 213 and a driving motor 214, the first driving wheel 211 is disposed at the first end of the cantilever shaft 22, the second driving wheel 212 is disposed on the driving motor 214, and the driving belt 213 is wound around the first driving wheel 211 and the second driving wheel 212. The refiner of the embodiment of the utility model drives the second transmission to rotate through the driving motor 214 so as to drive the transmission belt 213 to rotate, so that the first transmission wheel 211 drives the cantilever shaft 22 to rotate, and the stability and the safety of the rotation of the refiner can be high.

Further, as shown in fig. 2 to 3, a feed inlet 11 and a discharge outlet 12 are arranged on the cylinder 1, the feed inlet 11 is arranged at one end of the cylinder 1 close to the support component 3, and the discharge outlet 12 is arranged at one end of the cylinder 1 away from the support component 3.

In some embodiments, as shown in fig. 5, the grinding disc 23 is provided with a shaft hole 232 and a hollow hole 231, an axis of the shaft hole 232 coincides with an axis of the grinding disc 23, the hollow hole 231 has a first wall surface 2311 and a second wall surface 2312, and the first wall surface 2311 and the second wall surface 2312 are opposite to each other and are arranged at intervals along a circumferential direction of the grinding disc 23. In a cross section orthogonal to the axial direction of the abrasive disk 23, the projection of the first wall surface 2311 and the projection of the second wall surface 2312 are both arc-shaped, and the radius of curvature of the projection of the first wall surface 2311 is larger than that of the projection of the second wall surface 2312.

According to the fine grinding machine provided by the embodiment of the utility model, as the first wall surface 2311 and the second wall surface 2312 are opposite and arranged at intervals along the circumferential direction of the grinding disc 23, when the grinding disc 23 rotates, the first wall surface 2311 of the hollowed hole 231 enters the material firstly compared with the second wall surface 2312, and the projected curvature radius of the first wall surface 2311 is larger than that of the second wall surface 2312, so that the speed of the material flowing out of the hollowed hole 231 is larger than that of the material entering the hollowed hole 231, the stirring and mixing efficiency of the coal water slurry and the grinding medium is increased, the coal water slurry is ground more fully, and the production efficiency is higher.

In some embodiments, in a cross section orthogonal to the axial direction of the abrasive disk 23, the projection of the first wall surface 2311 is a circular arc surface, and/or the projection of the second wall surface 2312 is a circular arc surface. Alternatively, only the first wall surface 2311 is a circular arc surface, and alternatively, only the second wall surface 2312 is a circular arc surface.

Preferably, as shown in fig. 5, the first wall surface 2311 and the second wall surface 2312 are both arc surfaces. It can be understood that the first wall surface 2311 and the second wall surface 2312 both have constant curvature radii, so that the speed of the coal water slurry and the grinding medium entering the hollow hole 231 and flowing out of the hollow hole 231 is uniform, the grinding effect of the coal water slurry is improved, and the first wall surface 2311 and the second wall surface 2312 are both arc surfaces, so that the structural design of the hollow hole 231 is reasonable, and the processing and the manufacturing of the hollow hole 231 are facilitated.

Further, as shown in fig. 5, the hollow hole 231 further has a third wall 2313 and a fourth wall 2314, the third wall 2313 and the fourth wall 2314 are opposite and spaced apart from each other in the radial direction of the grinding disc 23, the third wall 2313 is closer to the rotation center of the grinding disc 23 than the fourth wall 2314, and the third wall 2313 and the fourth wall 2314 are both arc-shaped surfaces protruding in the direction away from the rotation center of the grinding disc 23. It is understood that the first wall 2311, the third wall 2313, the second wall 2312 and the fourth wall 2314 are connected end to enclose the inner wall surfaces of the hollow hole 231. The refiner of the embodiment of the present invention can further improve the grinding effect of the grinding disk 23 by providing the third wall surface 2313 and the fourth wall surface 2314 as arc-shaped surfaces protruding toward a direction away from the rotation center of the grinding disk 23.

Further, as shown in fig. 5, the plurality of hollow holes 231 are provided, and at least some of the plurality of hollow holes 231 are uniformly and alternately arranged along the axis of the shaft hole 232. For example, the number of the hollow holes 231 is three, and the three hollow holes 231 are uniformly and alternately arranged along the axis of the shaft hole 232. The fine grinding machine according to the embodiment of the present invention has a plurality of uniformly arranged hollow holes 231, so that the distribution of the grinding medium in the cylinder 1 is more uniform, and the grinding effect of the grinding disc 23 is further improved.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (10)

1. A refiner, characterized in that it comprises:

a barrel;

the grinding assembly comprises a driving part, a cantilever shaft and a grinding disc, wherein a first end of the cantilever shaft is connected with the driving part, a second end of the cantilever shaft extends into the cylinder, the grinding disc is positioned in the cylinder and arranged on the cantilever shaft, and the driving part is used for driving the grinding disc on the cantilever shaft to rotate relative to the cylinder;

the supporting assembly comprises a supporting seat and a housing, the supporting seat is located between the barrel and the driving part, the cantilever shaft is pivotally connected with the supporting seat, and the housing is arranged at the upper end of the supporting seat and detachably connected with the supporting seat.

2. A refiner as claimed in claim 1, wherein the casing is connected to the support block by fasteners.

3. The refiner of claim 1 wherein the support pedestal comprises a pedestal body and a rotation support portion, the rotation support portion is disposed on the pedestal body, the cantilever shaft is pivotally connected to the rotation support portion, and the support assembly further comprises a rib plate disposed in the casing and connected to the rotation support portion.

4. A refiner according to claim 3, wherein the plurality of ribs are arranged at intervals around the circumference of the rotation support.

5. A refiner according to claim 3, wherein the web is provided with through holes.

6. The refiner of claim 1 wherein the drive member includes a first drive wheel, a second drive wheel, a drive belt, and a drive motor, the first drive wheel being disposed at the first end of the cantilevered shaft, the second drive wheel being disposed on the drive motor, the drive belt being wound around the first drive wheel and the second drive wheel.

7. The refiner of claim 1 wherein the barrel has a feed inlet and a discharge outlet, the feed inlet being disposed at an end of the barrel adjacent to the support assembly, the discharge outlet being disposed at an end of the barrel facing away from the support assembly.

8. The fine grinding machine according to claim 1, wherein the grinding disc is provided with a shaft hole and a hollow hole, the axis of the shaft hole coincides with the axis of the grinding disc, the hollow hole has a first wall surface and a second wall surface, the first wall surface and the second wall surface are arranged oppositely and at intervals along the circumferential direction of the grinding disc, in a cross section orthogonal to the axial direction of the grinding disc, the projection of the first wall surface and the projection of the second wall surface are both arc-shaped, and the radius of curvature of the projection of the first wall surface is greater than that of the projection of the second wall surface.

9. A refiner as claimed in claim 8, wherein the first wall surface is a circular arc surface and/or the second wall surface is a circular arc surface.

10. A refiner as claimed in claim 8, wherein said openings are a plurality of openings spaced circumferentially around said abrasive disc.

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