CN115121332A

CN115121332A - Roller assembly and roller mill with same

Info

Publication number: CN115121332A
Application number: CN202210878664.2A
Authority: CN
Inventors: 李宪章
Original assignee: Hebei Tiefeng Environmental Protection Technology Co ltd; Beipiao Xinjiyuan Environmental Protection Technology Co ltd
Current assignee: Hebei Tiefeng Environmental Protection Technology Co ltd; Beipiao Xinjiyuan Environmental Protection Technology Co ltd
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2022-09-30

Abstract

The invention provides a roller assembly and a roller mill with the same, relates to the technical field of crushing equipment, and mainly aims to solve or relieve the possible problem of vehicle blocking in the use process of the equipment. The roller assembly comprises a pressure reducing unit, a roller body and a rolling space, wherein the pressure reducing unit can contract under the action of external force; the roller unit is positioned below the pressure reducing unit and is fixedly connected with the pressure reducing unit; the middle part of the upper surface of the roller body is downwards sunken to form a discharge hole, and the roller unit is positioned above the roller body and can rotate by taking the axis of the roller body as an axis; the rolling space is formed between the rolling disc body and the rolling roller unit, the width of the rolling space is gradually reduced from outside to inside, and materials falling into the rolling space can be discharged through the discharge hole; when the decompression unit is contracted by the roller unit, the width of the crushing space is increased.

Description

Roller assembly and roller mill with same

Technical Field

The invention relates to the technical field of crushing equipment, in particular to a roller assembly and a roller mill with the same.

Background

In industries such as building material production, mining and mineral processing, raw materials for processing need to be crushed. The crushing equipment is produced according to the processing requirement. Among the crushing plants commonly used at present, there is a roller mill, which may cause a "sloppy" phenomenon when in use, and even cause the whole production line to stop running due to tripping operation when in serious condition. The research shows that the 'stuffy car' phenomenon of the roller mill can be caused by the following reasons: firstly, the feeding amount of the equipment is not uniform, the time is more and less, and the equipment is intermittently accumulated too much due to the nonuniform feeding, so that tripping is caused; secondly, because of improper control of upstream device, lead to surpassing this roller mill throughput's stereoplasm materials such as large granule material or metal hard thing to get into in the equipment to make the corresponding work position of equipment produce great resistance, cause main motor to transship, and then lead to the system tripping operation, influence the normal operating of production line.

In view of the above problems, in order to completely solve or alleviate the "stuffy car" condition of the roller mill, a novel roller assembly and a roller mill having the same need to be developed.

Disclosure of Invention

The invention aims to provide a roller assembly and a roller mill with the roller assembly, so as to solve or relieve the problem of possible vehicle stuffiness in the use process of equipment. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.

In order to achieve the purpose, the invention provides the following technical scheme:

the roller assembly provided by the invention comprises a pressure reducing unit, a roller body and a rolling space, wherein the pressure reducing unit can contract under the action of external force; the roller unit is positioned below the pressure reducing unit and is fixedly connected with the pressure reducing unit; the middle part of the upper surface of the grinding disc body is downwards sunken to form a discharge hole, and the grinding roller unit is positioned above the grinding disc body and can rotate by taking the axis of the grinding disc body as an axis; the rolling space is formed between the rolling disc body and the rolling roller unit, the width of the rolling space is gradually reduced from outside to inside, and materials falling into the rolling space can be discharged through the discharge hole; when the decompression unit is contracted by the roller unit, the width of the crushing space is increased.

Because the decompression unit can contract under the extrusion action of external force, when materials exceeding the processing capacity of the roller assembly enter the rolling space between the roller body and the roller unit, the roller unit can move towards the direction far away from the roller body under the extrusion action of the materials, namely, the roller body moves upwards, so that the width of the rolling space is increased, and the decompression unit contracts under the extrusion action of the roller unit; when the corresponding materials are discharged from the discharge port, the pressure disappears, and the roller unit and the pressure reducing unit return to the initial state. Through the action, the problem of vehicle stuffiness which possibly occurs in the equipment can be effectively relieved or even solved, so that the power failure condition of the production line is avoided, and the continuous production of the production line is ensured.

On the basis of the technical scheme, the invention can be further improved as follows.

As a further improvement of the invention, the decompression unit comprises a hydraulic cylinder and a hydraulic system; alternatively, the pressure reducing unit is a spring.

The hydraulic cylinder or the spring can contract under the action of pressure, so that the function of the hydraulic cylinder or the spring is realized.

As a further improvement of the present invention, the pressure reducing unit has a hollow structure; and/or a connecting disc is fixedly arranged below the decompression unit, and the grinding roller unit is fixedly arranged below the connecting disc through a bearing.

The hollow decompression unit facilitates the arrangement of a structure capable of driving the roller unit in the interior thereof; similarly, the connecting disc structure below the pressure reducing unit can conveniently fix the roller unit below the pressure reducing unit, and meanwhile, the bearing structure can realize the rotation movement of the roller unit on the premise that the pressure reducing unit is fixed to be different.

As a further improvement of the invention, the bearing is a flat-pressing bearing. The platen bearing is a structure separated up and down, so that when the roll unit rotates, the related structure located at the upper half of the bearing, i.e., the decompression unit, etc., can be kept fixed and not rotate therewith.

As a further improvement of the present invention, the roller unit includes a bracket and a roller element, an axis of the bracket coincides with an axis of the roller body, and the roller element is fixedly arranged on an outer peripheral side of the bracket.

Above-mentioned bracket can be in the drive of external force under swivelling movement, is used for helping fixed roller spare structure that can realize crushing function with the mutual effect of grinding disk body simultaneously.

As a further improvement of the present invention, an upper fixing member and a lower fixing member are sequentially disposed on an outer peripheral side of the bracket from top to bottom, and the roller element is fixedly disposed on the bracket via the upper fixing member and the lower fixing member.

The upper fixing piece and the lower fixing piece are arranged in a protruding mode relative to the outer peripheral side of the bracket, so that a large gap can exist between the roller piece fixed on the bracket and the bracket body, and the roller unit is prevented from being clamped by materials and being influenced in normal use.

As a further improvement of the present invention, the lower fixing member is disposed obliquely toward the outside of the bracket. The structure can ensure that the roller fixedly arranged through the bracket can be obliquely arranged, so that the roller and the grinding disc body can be matched with each other conveniently to realize the crushing treatment of the materials.

As a further improvement of the invention, the roller wheel assembly also comprises a bulk material tray which is fixedly arranged on the outer peripheral side of the decompression unit or the roller unit, and materials can fall into the rolling space through the bulk material tray.

This bulk cargo dish can play the bulk cargo effect, and the material that falls on the bulk cargo dish can follow the even falling into of all directions rolls the space in the even each position that falls into of upper surface of bulk cargo dish to guarantee that the material can avoid appearing the uneven condition of pay-off.

The invention also provides a roller mill, which comprises the roller wheel assembly, a shell and a driving unit, wherein the roller wheel assembly comprises a roller wheel and a roller wheel; the roller wheel assembly is positioned in the shell, a feed inlet and a feed outlet are formed in the shell, materials fall into the rolling space through the feed inlet, and the feed outlet is positioned below the rolling space and communicated with the rolling space; the drive unit with it links to each other and drives to roll the roller unit for roll the dish body and rotate, roll the dish body with shell fixed connection.

Because the shell is provided with the feed inlet and the feed outlet, the roller wheel assembly is positioned below the feed inlet, the material flowing into the shell through the feed inlet can fall into the rolling space for crushing treatment, and the treated material can be discharged through the discharge outlet and the feed outlet; the drive unit is capable of driving the roller unit to rotate relative to the grating body, thereby accelerating the crushing process.

As a further improvement of the invention, the driving unit comprises a driving shaft and a main shaft, the driving shaft and the main shaft are meshed with each other through a bevel gear, and the main shaft is fixedly connected with the roller grinding unit and drives the roller grinding unit to rotate.

The arrangement position of the driving unit can be adjusted through the driving shaft and the main shaft which are meshed with each other through the bevel gears, so that equipment of corresponding equipment is conveniently arranged outside the shell, the effect of avoiding the space of the lower half part of the shell is achieved, the size of the shell is reduced, and the driving unit is prevented from influencing normal blanking.

Compared with the prior art, the roller assembly provided by the preferred embodiment of the invention can effectively relieve or even solve the problem of the equipment stuffiness through the pressure reducing unit, achieves the automatic pressure reducing effect, can protect the equipment, avoids the equipment from being accelerated, lost or even damaged due to overload, can ensure the normal operation of production, and avoids the production line from stopping operation due to power failure; the roller mill with the roller assembly is compared with a traditional roller mill, and not only has flexible material crushing processing capacity, but also can adjust the arrangement position of corresponding equipment through a bevel gear structure, and helps to reduce the size of the equipment.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the construction of the inventive roller assembly;

FIG. 2 is a schematic view of the installation of the decompression unit and the roller unit in the roller assembly of the present invention;

FIG. 3 is a schematic diagram of the hydraulic cylinder of FIG. 1;

fig. 4 is a schematic view of the structure of the roll mill of the present invention.

In the figure: 1. a pressure reducing unit; 11. a hydraulic cylinder; 12. a hydraulic system; 13. a connecting disc; 14. a bearing; 2. a roller unit; 21. a bracket; 211. an upper fixing member; 212. a lower fixing member; 22. a roll element; 3. rolling the disc body; 31. a discharge port; 4. rolling a space; 5. a bulk material tray; 6. a housing; 61. a feed inlet; 62. a feeding port; 7. a drive unit; 71. a drive shaft; 72. a main shaft; 73. a bevel gear; 74. a motor; 75. and a speed reducer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.

FIG. 1 is a schematic structural view of a roller assembly of the present invention; it can be seen that the roller assembly comprises a pressure reducing unit, a roller unit and a roller body, wherein the roller unit and the roller body are coaxially arranged, a gap exists between the roller unit and the roller body, the gap is a grinding space for crushing materials, and the pressure reducing unit is positioned above the axis of the roller unit and fixedly connected with the roller unit; in addition, the middle part of the grinding disc body is sunken downwards, the upper surface of the grinding disc body is of an inclined curved surface structure at the moment, and a discharge hole is formed in the middle part of the grinding disc body and communicated with the grinding space.

FIG. 2 is a schematic view of the installation of the decompression unit and the roller unit in the roller assembly of the present invention; it can be seen that the roller part in the roller unit in the figure is not depicted; in addition, the pressure reducing unit in the figure comprises a hydraulic cylinder and a hydraulic system, wherein the upper end of the hydraulic cylinder is fixedly arranged on a corresponding position through a fixing plate structure, the hydraulic system is connected with the hydraulic cylinder, a piston part of the hydraulic cylinder is positioned at the lower end of a cylinder body, the end part of the piston is provided with a connecting disc structure, and a bracket part of the grinding roller unit is connected with the pressure reducing unit through a bearing structure fixedly arranged below the connecting disc, so that when the grinding roller unit is extruded by materials to move upwards, the piston can move upwards along with the grinding roller unit so as to realize the contraction of the pressure reducing unit; in addition, the bulk material tray is fixedly installed on the outer peripheral side of the hydraulic cylinder body.

FIG. 3 is a schematic diagram of the hydraulic cylinder of FIG. 1; it can be seen that the piston part of the cylinder is located below the cylinder.

FIG. 4 is a schematic view of the roller mill of the present invention; the roller mill comprises a roller wheel assembly, a shell and a driving unit, wherein the upper end and the lower end of the shell are respectively provided with a feed inlet and a feed outlet, the roller wheel assembly is positioned in the shell and below the feed inlet, and the feed outlet is communicated with a discharge outlet in the roller wheel assembly; the driving unit comprises a driving shaft, a main shaft, a bevel gear, a corresponding motor and a corresponding speed reducer, wherein the motor and the speed reducer are positioned outside the shell; when the motor works, the main shaft can be driven by the motor and drives the roller unit to rotate.

The technical solution of the present invention will be specifically described below with reference to the accompanying drawings.

The invention provides a roller assembly, which comprises a pressure reducing unit 1, a roller unit 2, a rolling disc body 3 and a rolling space 4, wherein as shown in figure 1, the pressure reducing unit 1 can shrink under the extrusion action of external force, and can return to an initial state when the external force is removed; the roller unit 2 is positioned below the decompression unit 1 and is fixedly connected with the decompression unit 1; the middle part of the upper surface of the rolling disc body 3 is downwards sunken to form a discharge port 31, and the rolling roller unit 2 is positioned above the rolling disc body 3 and can rotate by taking the axis of the rolling disc body 3 as an axis; the rolling space 4 is formed between the rolling disc body 3 and the rolling roller unit 2, the width of the rolling space 4 is gradually reduced from outside to inside (similar to a V-shaped structure), and the materials falling into the rolling space 4 can be discharged through the discharge port 31; when the decompression unit 1 is contracted by the roller unit 2, the width of the crushing space 4 is increased.

Because the decompression unit 1 can contract under the extrusion action of external force, when a material exceeding the processing capacity of the roller assembly enters the rolling space 4 between the roller body 3 and the roller unit 2, the roller unit 2 above the roller body 3 can move towards the direction far away from the roller body 3 (namely above the roller body 3) under the extrusion action of the material due to the fixed arrangement of the roller body 3, so as to increase the width of the rolling space 4, facilitate the discharge of the material and avoid the overload condition of equipment, and at the moment, the decompression unit 1 can contract under the extrusion action of the roller unit 2; when the corresponding material is discharged through the discharge hole 31, the pressing force applied to the roller unit 2 disappears, and the roller unit 2 and the pressure reducing unit 1 return to the original state.

Through above-mentioned structure, help adjustment when can get into a large amount of materials or the material that hardness is higher than usual in rolling space 4 rolls the width in space 4 to reach automatic decompression effect, effectively alleviate the stifled car problem that solves even equipment probably appears, avoid the situation that the production line has a power failure to take place, guarantee that the production line can continuous production.

As an alternative embodiment, the decompression unit 1 comprises a hydraulic cylinder 11 and a hydraulic system 12, as shown in fig. 3; alternatively, the decompression unit 1 may be provided as a spring.

The hydraulic cylinder 11 or the spring can be contracted under pressure to perform its function.

Specifically, when the decompression unit 1 includes the hydraulic cylinder 11 and the hydraulic system 12, the hydraulic cylinder 11 includes a cylinder body and a piston structure inserted into the cylinder body, and the piston is of a sleeve type structure and is located below the cylinder body, extends downward relative to the cylinder body, and moves telescopically in the axial direction of the cylinder body.

As an alternative embodiment, the decompression unit 1 is a hollow structure; and/or a connecting disc 13 is fixedly arranged below the decompression unit 1, and the grinding roller unit 2 is fixedly arranged below the connecting disc 13 through a bearing 14.

The hollow decompression unit 1 facilitates the arrangement of a structure capable of driving the roller unit 2 in the inside thereof; similarly, the connecting disc 13 structure under the decompression unit 1 can facilitate the fixed connection of the roller unit 2 and the decompression unit 1, and the bearing 14 structure can realize the rotation and movement of the roller unit 2 on the premise that the decompression unit 1 is fixed differently. In this embodiment, the connecting disc 13 structure is connected to the piston.

As an alternative embodiment, the bearing 14 is a flat-pressed bearing 14. The platen bearing 14 is a structure separated up and down, so that when the roll unit 2 rotates, the related structure located at the upper half of the bearing 14, i.e., the decompression unit 1, etc., can be kept fixed and not rotate therewith.

As an alternative embodiment, the roller unit 2 includes a bracket 21 and a roller 22, the axis of the bracket 21 is coincident with the axis of the rolling base 3, and the roller 22 is fixedly disposed on the outer periphery of the bracket 21.

The above-mentioned bracket 21 is capable of rotational movement under the drive of an external force and at the same time serves to help secure the structure of the roller elements 22 that are capable of interacting with the milling disc 3 to perform a crushing function.

As an alternative embodiment, the outer circumference of the bracket 21 is provided with an upper fixing member 211 and a lower fixing member 212 in sequence from top to bottom, and the roller member 22 is fixedly provided on the bracket 21 via the upper fixing member 211 and the lower fixing member 212.

The upper fixing member 211 and the lower fixing member 212 are protrudingly disposed with respect to the outer circumferential side of the bracket 21, so that a large gap can exist between the roller member 22 fixed to the bracket 21 and the body of the bracket 21, and the roller unit 2 is prevented from being caught by the material to affect the normal use of the roller unit 2.

As an alternative embodiment, the lower fixture 212 is disposed obliquely toward the outside of the bracket 21. This construction ensures that the milling roller 22, which is fixedly arranged via the bracket 21, can be arranged obliquely in order to facilitate the milling roller 22 to cooperate with the milling base 3 for the crushing treatment of the material.

As an optional implementation mode, the roller wheel assembly further comprises a material dispersing disc 5, the material dispersing disc 5 is fixedly arranged on the outer peripheral side of the pressure reducing unit 1 or the roller unit 2, and materials can fall into the rolling space 4 through the material dispersing disc 5.

This bulk cargo dish 5 can play the bulk cargo effect, and the material that falls on bulk cargo dish 5 can follow the even falling into of all directions in rolling space 4 in the even each position that falls into of all directions of material ability along the upper surface of bulk cargo dish 5 on to guarantee that the material can avoid appearing the uneven condition of pay-off.

In this embodiment, the bulk material tray 5 is fixedly disposed outside the cylinder.

The above-described connecting structure of the decompression unit 1 and the roller assembly is shown in fig. 2.

The invention also provides a roller mill, as shown in fig. 4, comprising any one of the roller assemblies, a shell 6 and a driving unit 7; the roller assembly is located shell 6, is provided with feed inlet 61 and feed opening 62 on the shell 6, and the roller assembly is located feed inlet 61 below and pneumatic cylinder 11 passes through fixed plate fixed mounting on corresponding position. The material falls into the rolling space 4 through the feed port 61 and the bulk material plate, and the feed port 62 is positioned below the rolling space 4 and communicated with the rolling space 4; the driving unit 7 is connected with the roller unit 2 and drives the roller unit 2 to rotate relative to the roller body 3, and the roller body 3 is fixedly connected with the shell 6.

Because the shell 6 is provided with the feed port 61 and the feed port 62, the roller assembly is positioned below the feed port 61, the material flowing into the shell 6 through the feed port 61 can fall into the rolling space 4 for crushing treatment, and the treated material can be discharged through the discharge port 31 and the feed port 62; the above-mentioned drive unit 7 is able to drive the roller unit 2 in rotation relative to the grating body 3, thereby accelerating the crushing process.

As an alternative embodiment, the driving unit 7 comprises a driving shaft 71 and a main shaft 72, the driving shaft 71 and the main shaft 72 are engaged with each other through a bevel gear 73, and the main shaft 72 is fixedly connected with the roller unit 2 and drives the roller unit 2 to rotate.

The arrangement position of the driving unit 7 can be adjusted through the driving shaft 71 and the main shaft 72 which are meshed with each other through the bevel gears 73, so that equipment of corresponding equipment is conveniently arranged outside the shell 6, the effect of avoiding the space of the lower half part of the shell 6 is achieved, the size of the shell 6 is reduced, and the driving unit 7 is prevented from influencing normal blanking.

Specifically, the driving unit 7 further includes a motor 74 and a speed reducer 75, wherein the motor 74 and the speed reducer 75 are located outside the housing 6, and the driving shaft 71 is inserted into the housing 6.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A roller assembly, comprising:

a decompression unit that is contractible by an external force;

the roller unit is positioned below the pressure reducing unit and is fixedly connected with the pressure reducing unit;

the middle part of the upper surface of the grinding disc body is downwards sunken to form a discharge hole, and the grinding roller unit is positioned above the grinding disc body and can rotate by taking the axis of the grinding disc body as an axis;

the rolling space is formed between the rolling disc body and the rolling roller unit, the width of the rolling space is gradually reduced from outside to inside, and materials falling into the rolling space can be discharged through the discharge hole;

when the decompression unit is contracted by the roller unit, the width of the crushing space is increased.

2. The roller assembly of claim 1, wherein the pressure relief unit comprises a hydraulic cylinder and a hydraulic system; alternatively, the pressure reducing unit is a spring.

3. The roller assembly of claim 2, wherein the pressure relief unit is a hollow structure; and/or a connecting disc is fixedly arranged below the decompression unit, and the roller unit is fixedly arranged below the connecting disc through a bearing.

4. A roller assembly according to claim 3, characterised in that the bearing is a plain bearing.

5. A roller assembly according to claim 1, characterised in that the roller unit comprises a carrier and roller elements, the axis of the carrier coinciding with the axis of the roller body, the roller elements being fixedly arranged at the outer peripheral side of the carrier.

6. The roller assembly of claim 5, wherein the outer circumferential side of the bracket is provided with an upper fixing member and a lower fixing member in sequence from top to bottom, and the roller element is fixedly arranged on the bracket through the upper fixing member and the lower fixing member.

7. The roller assembly of claim 6, wherein the lower fixing member is disposed obliquely toward an outer side of the bracket.

8. The roller assembly of claim 1, further comprising a material dispersing tray fixedly disposed at an outer circumferential side of the decompression unit or the roller unit, through which the material can fall into the rolling space.

9. Roller mill, characterized in that it comprises a roller assembly according to any of claims 1-8, further comprising a housing and a drive unit; the roller wheel assembly is positioned in the shell, a feed inlet and a feed outlet are formed in the shell, materials fall into the rolling space through the feed inlet, and the feed outlet is positioned below the rolling space and communicated with the rolling space;

the drive unit with the roller unit links to each other and drives the roller unit for roll the disk body and rotate, roll the disk body with shell fixed connection.

10. The roller mill of claim 9, wherein the driving unit comprises a driving shaft and a main shaft, the driving shaft and the main shaft are engaged with each other through a bevel gear, and the main shaft is fixedly connected with the roller unit and drives the roller unit to rotate.