CN215240122U

CN215240122U - Grinding roller

Info

Publication number: CN215240122U
Application number: CN202022971017.5U
Authority: CN
Inventors: 罗远锋; 肖锋; 危洛群; 董涛; 贾幼蒙; 黄彦武; 朱普霞
Original assignee: Hebi Yuzhan Precision Technology Co Ltd
Current assignee: Fulian Technology Hebi Co ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-12-21
Anticipated expiration: 2030-12-10

Abstract

A grinding roller comprises a roller body, wherein the roller body comprises a fixed assembly and a movable assembly, the fixed assembly and the movable assembly are arranged in a surrounding mode to form an inner cavity of the roller, and the movable assembly is arranged above the fixed assembly and detachably connected with the fixed assembly; the fixed assembly is a sealing structure, the movable assembly comprises a first mounting plate, and the first mounting plate is detachably connected with the fixed assembly; the fixed component is enclosed to form a cavity with the volume being 1/3-4/5 of the volume of the inner cavity of the roller. Through set up the fixed subassembly and the movable assembly that can dismantle the connection with the cylinder body to when using different abrasive material to grind specific work piece, can reach different grinding environment through changing movable assembly. The volume of the cavity formed by enclosing the fixed assembly is set to be 1/3-4/5 of the volume of the roller body, so that the cavity formed by enclosing the fixed assembly can contain a certain abrasive, and the grinding requirement is met.

Description

Grinding roller

Technical Field

The application relates to grinding equipment, especially relates to a grinding roller.

Background

The grinding roller is mainly used for eliminating the defects of burrs, flashes, scratches and the like caused by previous processing in time after a workpiece is formed, performing secondary finishing such as rounding off and the like on a sharp edge, removing dirt such as oil stains, rust spots, heat treatment scales and the like, and improving the surface gloss, smoothness and the like. After the grinding roller runs for a certain time, high temperature is generated in the roller due to the overturning grinding of the grinding materials and the workpiece in the roller. The existing method is that a through hole is arranged on the outer wall of the roller, and a ventilation plug is arranged in the through hole to dissipate heat in the inner cavity of the roller. And through seting up the through-hole and set up the mode of ventilative stopper and can only polish the product when the abrasive material is solid (dry grinding scheme), when need add liquid material in the cylinder and assist when polishing (wet grinding scheme), can lead to liquid material to spill from the through-hole position.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a grinding roller capable of performing a grinding function when the grinding material is in a solid state or a liquid state.

The embodiment of the application provides a grinding roller, which comprises a roller body, wherein the roller body is used for accommodating a product to be ground and abrasive, the roller body comprises a fixed assembly and a movable assembly, the fixed assembly and the movable assembly are arranged in an enclosing manner to form a roller inner cavity, and the movable assembly is arranged above the fixed assembly and is detachably connected with the fixed assembly; the fixed assembly is a sealing structure, the movable assembly comprises a first mounting plate, and the first mounting plate is detachably connected with the fixed assembly; the fixed component is enclosed to form a cavity with the volume being 1/3-4/5 of the volume of the inner cavity of the roller. Through set up the fixed subassembly and the movable assembly that can dismantle the connection with the cylinder body to when using different abrasive material to grind specific work piece, can reach different grinding environment through changing movable assembly. The volume of the cavity formed by enclosing the fixed assembly is set to be 1/3-4/5 of the volume of the roller body, so that the cavity formed by enclosing the fixed assembly can contain a certain abrasive, and the grinding requirement is met.

In at least one embodiment of the present application, the first mounting plate is a seal structure. When the grinding material is added with the liquid substance for assisting grinding, the sealed first mounting plate is connected with the fixing assembly, so that the liquid substance can be prevented from being spilled during grinding.

In at least one embodiment of the present application, the first mounting plate is a non-sealing structure with louvers. When the grinding materials are solid, the first mounting plate with the heat dissipation holes is connected with the fixing assembly, so that heat dissipation of the grinding roller is facilitated.

In at least one embodiment of the present application, the fixing component encloses a cavity volume 1/2-2/3 of the drum inner cavity volume. The cavity formed by enclosing the fixed assembly is set to be 1/2-2/3 of the cavity volume of the roller, so that the cavity formed by enclosing the fixed assembly has enough space for placing a workpiece to be ground and abrasive materials before the movable assembly is installed.

In at least one embodiment of this application, fixed subassembly includes relative second mounting panel, relative third mounting panel and the bottom plate that sets up, the second mounting panel, the third mounting panel with the bottom plate is sealing connection in proper order, grinding roller still includes the mounting, corresponding mounting hole has been seted up on first mounting panel with the second mounting panel, the mounting stretches into in the mounting hole on first mounting panel with on the second mounting panel, with first mounting panel with the second mounting panel is fixed. The fixed assembly is divided into the second mounting plate, the third mounting plate and the bottom plate which are oppositely arranged, so that a sealed cavity is formed by the fixed assembly, and a product to be ground and abrasive materials are placed before grinding. Through set up corresponding mounting hole on first mounting panel and second mounting panel to stretch into the mounting hole on first mounting panel and the second mounting panel through the mounting and fix first mounting panel and second mounting panel.

In at least one embodiment of the present application, the grinding roller further comprises a sealing member, which is disposed at a connection portion of the movable assembly and the fixed assembly, and is used for sealing the movable assembly and the fixed assembly when the movable assembly is installed. The sealing element is arranged at the connecting position of the movable assembly and the fixed assembly, so that the sealing performance of the movable assembly when the movable assembly is fixed with the fixed assembly is ensured.

In at least one embodiment of this application, movable component still includes the apron, the apron is seal structure and sets up in first mounting panel top, the apron with first mounting panel with fixed subassembly encloses jointly and establishes formation the cylinder body. Through locating the apron on first mounting panel and setting up to seal structure to enclose into a sealed cavity with first mounting panel and fixed subassembly, be convenient for the grinding of product and abrasive material.

In at least one embodiment of the present application, the grinding roller further includes a plurality of air-permeable members, and the plurality of air-permeable members are at least partially disposed in the heat dissipation holes. Through set up ventilative piece in the louvre on first mounting panel to the heat that makes the work piece produce in the grinding process distributes from ventilative piece, thereby prevents because the problem that long-term high temperature leads to equipment to damage.

In at least one embodiment of this application, ventilative piece includes connecting portion and locates ventilative portion on the connecting portion, connecting portion locate in the radiating hole, just connecting portion offer with the first bleeder vent of the inner chamber intercommunication of cylinder body, ventilative portion offers a plurality of second bleeder vents that communicate each other and with first bleeder vent intercommunication. The ventilating piece is divided into the connecting part and the ventilating part, so that the ventilating piece is arranged in the radiating hole conveniently; and a first air hole and a second air hole which are communicated with each other are arranged on the connecting part and the air permeable part so as to realize the heat dissipation of the inner cavity of the grinding roller.

In at least one embodiment of this application, the grinding cylinder still includes filtering the piece, filter the piece and locate in the connecting portion, filter the piece and seted up a plurality of third bleeder vents, the cross-sectional area of third bleeder vent is less than the cross-sectional area of abrasive material. Through set up in connecting portion and filter the piece to set up a plurality of cross-sectional areas and be less than the third bleeder vent of abrasive on filtering the piece, under the radiating prerequisite of being convenient for, prevent that the abrasive from spilling through the third bleeder vent.

The grinding roller provided by the invention has the advantages that the roller body is provided with the fixed assembly and the movable assembly which are detachably connected, so that different grinding environments can be achieved by replacing the movable assembly when different grinding materials are used for grinding specific workpieces. The volume of the cavity formed by enclosing the fixed assembly is set to be 1/3-4/5 of the volume of the roller body, so that the cavity formed by enclosing the fixed assembly can contain a certain abrasive, and the grinding requirement is met.

Drawings

Fig. 1 is an exploded perspective view of a grinding roller in a wet grinding state according to an embodiment.

Fig. 2 is an exploded perspective view of the grinding roller in a dry grinding state according to an embodiment.

Fig. 3 is an exploded view of the air permeable member shown in fig. 2.

Description of the main elements

Grinding roller 100

Cylinder body 10

Fixing assembly 11

Second mounting plate 111

Third mounting plate 112

Base plate 113

Movable assembly 12

First mounting plate 121

Heat dissipation hole 1211

Mounting holes

121a, 111a

Sealing element 20

Cover plate 30

Locking assembly 40

Mounting base 41

Fixing hole 411

Connecting rod 42

Eccentric wheel 43

Push rod 44

Air permeable member 50

Connecting part 51

First air holes 511

Air-permeable part 52

Second breather 521

Filter element 60

Third air hole 61

Guard 70

Screw hole 71

Weight member 80

Rotating member 90

Detailed Description

The embodiments of the present application will be described in conjunction with the drawings in the embodiments of the present application, and it is to be understood that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. The terms "top," "bottom," "upper," "lower," "left," "right," "front," "rear," and the like as used herein are for illustrative purposes only.

The embodiment of the application provides a grinding roller, which comprises a roller body, wherein the roller body is used for accommodating a product to be ground and abrasive, the roller body comprises a fixed assembly and a movable assembly, the fixed assembly and the movable assembly are arranged in an enclosing manner to form a roller inner cavity, and the movable assembly is arranged above the fixed assembly and is detachably connected with the fixed assembly; the fixed assembly is a sealing structure, the movable assembly comprises a first mounting plate, and the first mounting plate is detachably connected with the fixed assembly; the fixed component is enclosed to form a cavity with the volume being 1/3-4/5 of the volume of the inner cavity of the roller.

Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

Fig. 1 is an exploded perspective view showing a state where the grinding roller 100 is wet-ground in the embodiment of the present application, and fig. 2 is an exploded perspective view showing a state where the grinding roller 100 is dry-ground in the embodiment of the present application. As can be seen from fig. 1 and 2, the grinding drum 100 includes a drum body 10, and the drum body 10 is used for accommodating a product to be ground and abrasives. The roller body 10 comprises a fixed component 11 and a movable component 12, the fixed component 11 and the movable component 12 are enclosed to form a roller inner cavity (not shown), and the movable component 12 is arranged above the fixed component 11 and is detachably connected with the fixed component 11; the fixed component 11 is a sealing structure, the movable component 12 comprises a first mounting plate 121, and the first mounting plate 121 is detachably connected with the fixed component 11; the fixed component 11 is enclosed to form a cavity volume 1/3-4/5 of the inner cavity volume of the roller.

It should be noted that, depending on the characteristics of different workpieces, different abrasives need to be added into the grinding drum 100 to grind different workpieces in order to eliminate the defects of burrs, flashes, and scratches caused by the previous machining of the workpieces. Such as adding a solid grinding agent such as walnut particles and the like to dry grind the workpiece. Or other liquid mixing agents such as dispersants and auxiliary materials may be added to wet grind the workpiece.

The above scheme is realized by detachably connecting the fixing member 11 and the first mounting plate 121. In one embodiment, the grinding is performed using a dry grinding scheme, and the first mounting plate 121 is configured as a non-sealing plate with heat dissipating holes 1211. The non-sealing plate with heat dissipation holes 1211 is fixed on the fixing component 11, so that heat generated during the grinding process of the abrasive can be discharged through the heat dissipation holes 1211, the influence of heat generation on the equipment is reduced, and the use of the equipment is improved.

In one embodiment, the wet grinding scheme is used for grinding, and the first mounting plate 121 is switched to the sealing plate and fixed on the fixing assembly 11 to ensure that the grinding roller 100 is sealed during grinding of the workpiece, so as to prevent the liquid material in the grinding roller 100 from spilling out.

To facilitate placement of the workpiece and abrasive, in one embodiment, the fixed assembly 11 includes an oppositely disposed second mounting plate 111, an oppositely disposed third mounting plate 112, and a base plate 113. The second mounting plate 111, the third mounting plate 112 and the base plate 113 together define a chamber (not shown) in which the workpiece and the abrasive are disposed.

It is understood that the manner in which the securing member 11 encloses the cavity is not limited thereto, as in another embodiment, the securing member 11 may also be a hemispherical or semi-ellipsoidal structure, or the like.

It should be noted that, in one embodiment, in order to be able to place a sufficient amount of the workpiece and the abrasive, the fixed assembly 11 encloses a cavity with a volume 1/3-4/5 of the volume of the roller body 10, so as to provide enough space for placing the workpiece and the abrasive without affecting the detachment of the first mounting plate 121.

In another embodiment, in order to ensure that enough workpieces and abrasives are placed, most abrasives are dispersed in a cavity formed by the enclosing of the fixed assembly 11 sealed at the lower part of the roller in the grinding process, and the movable assembly 12 with the replaceable upper part has a certain area so as to ensure that the movable assembly 12 has enough positions to be opened for heat dissipation in the dry grinding process, the volume of the cavity enclosed by the fixed assembly 11 is 1/2-2/3 of the volume of the roller body 10.

To simplify the process flow and improve the efficiency of the installation and removal of the first mounting plate 121, in one embodiment, the movable assembly 12 may include only one removable first mounting plate 121. A first mounting panel 121 can be dismantled with fixed subassembly 11 and be connected and can ensure when changing the different work pieces of treating polishing, only need change a first mounting panel 121 can realize dry grinding and wet-grinding state's switching.

It is to be understood that the number of the first mounting plates 121 included in the movable assembly 12 is not limited thereto, and as in other embodiments, in order to improve heat dissipation efficiency when there are a large number of workpieces to be ground, the movable assembly 12 includes two first mounting plates 121. Two first mounting panels 121 are relative to dismantle and locate on fixed subassembly 11 to when the work piece of waiting to polish of placing is more, can change two first mounting panels 121 that have louvre 1211 under the dry grinding state, realize the heat dissipation from the louvre 1211 of both sides, improve radiating efficiency.

In order to detachably connect the first mounting plate 121 and the second mounting plate 111, in an embodiment, the first mounting plate 121 and the second mounting plate 111 are provided with corresponding mounting holes (121a, 111a), and the grinding roller 100 further includes a fixing member (not shown). The fixing members are inserted into the mounting holes (121a, 111a) of the first mounting plate 121 and the second mounting plate 111 to fix the first mounting plate 121 and the second mounting plate 111.

It should be understood that the detachable connection manner of the first mounting plate 121 and the second mounting plate 111 is not limited thereto, for example, in other embodiments, a plurality of fastening structures (not shown) are disposed on the first mounting plate 121, a plurality of bumps (not shown) corresponding to the fastening structures are disposed on the second mounting plate 111, and the first mounting plate 121 is fastened to the plurality of bumps on the second mounting plate 111 through the plurality of fastening structures.

In order to prevent the problem of abrasive scattering due to a gap between the fixing positions of the first mounting plate 121 and the second mounting plate 111, the grinding drum 100 further includes a seal 20. The sealing member 20 is disposed at the connection position of the movable member 12 and the fixed member 11 to hermetically connect the movable member 12 and the fixed member 11. In one embodiment, the seal 20 is a rubber ring. It is to be understood that the type of the sealing member 20 is not limited thereto, and any structure may be used to achieve the sealing between the movable member 12 and the fixed member 11.

In one embodiment, the movable assembly 12 further includes a cover plate 30, and in order to further ensure the sealing performance of the grinding roller 100 during the dry grinding process, the cover plate 30 is a sealing structure and is disposed above the first mounting plate 121, and the cover plate 30, the first mounting plate 121 and the fixed assembly 11 together enclose the roller body 10. The above-indicated upper side is the upper side of the polishing drum 100 in the use state.

In one embodiment, to facilitate locking the cover plate 30 to the cylinder body 10, the polishing cylinder 100 further includes a locking assembly 40. The locking assembly 40 is fixed on the cover plate 30 and the roller body 10 to lock the cover plate 30 and the roller body 10. In the present embodiment, the locking assembly 40 includes two mounting seats 41, a connecting rod 42, a plurality of eccentric wheels 43 and a push rod 44. The two mounting seats 41 are fixed at two ends of the drum body 10, and the two mounting seats 41 are provided with opposite fixing holes 411. The two ends of the connecting rod 42 can extend into and be fixed in the two fixing holes 411. The eccentric wheels 43 are arranged on the connecting rod 42, and the connecting line between the centers of the eccentric wheels 43 is parallel to but not coincident with the axis of the connecting rod 42. The push rod 44 is radially disposed on the connecting rod 42, so as to drive the connecting rod 42 and the eccentric wheel 43 to rotate by pushing the push rod 44 until the eccentric wheel 43 abuts against the cover plate 30 to press the cover plate 30 and the roller body 10. It is understood that the type of the locking assembly 40 is not limited thereto, and any structure or means for pressing the cover plate 30 against the drum body 10 may be used.

In order to facilitate the ventilation of the grinding roller 100 during dry grinding, the grinding roller 100 further includes a plurality of ventilation members 50, and the ventilation members 50 are at least partially disposed in the heat dissipation holes 1211.

Fig. 3 is an exploded view of the air permeable member 50 shown in fig. 2, referring to fig. 3, in order to facilitate the air permeable member 50 to be partially disposed in the heat dissipation hole 1211, the air permeable member 50 includes a connecting portion 51 and an air permeable portion 52 disposed on the connecting portion 51. The connection part 51 is disposed in the heat dissipation hole 1211, the connection part 51 is formed with a first air hole 511 communicating with the inner cavity of the drum body 10, and the ventilation part 52 is formed with a plurality of second air holes 521 communicating with each other and connected with the first air hole 511, so that heat in the drum body 10 is discharged through the first air hole 511 and the plurality of second air holes 521.

In order to improve the heat dissipation efficiency, in an embodiment, the ventilation portion 52 is a polyhedron structure, and each end surface of the ventilation portion 52 is opened with a second ventilation hole communicated with each other and the first ventilation hole 511, so that the heat is discharged out of the roller body 10 through the plurality of second ventilation holes 521 after passing through the first ventilation hole 511. It is to be understood that the shape of the air-permeable portion 52 is not limited thereto, and the air-permeable portion 52 may also be a spherical structure or the like as in other embodiments.

In one embodiment, the connecting portion 51 and the air-permeable portion 52 are integrally formed. It is understood that the connection manner of the connection portion 51 and the air permeable portion 52 is not limited thereto, and the connection portion 51 and the air permeable portion 52 may also be a threaded connection, a snap connection, a plug connection, or the like, as in other embodiments.

In order to prevent the abrasive from being discharged through the first and second airing holes 511 and 521, the grinding drum 100 further includes a filter 60. The filtering member 60 is disposed in the connecting portion 51, and the filtering member 60 is provided with a plurality of third air holes 61, and the cross-sectional area of the third air holes 61 is smaller than that of the abrasive material, so that the abrasive material cannot pass through the third air holes 61 to be discharged when the workpiece is polished.

In one embodiment, the filter member 60 is integrally formed with the connecting portion 51, and has a first vent 511 and a third vent 61 formed therein from both ends. It is understood that the connection manner of the filter member 60 and the connection part 51 is not limited thereto, and as in other embodiments, the filter member 60 is pressed into the first vent 511 or is screw-coupled into the first vent 511.

Referring to fig. 2, in order to prevent the abrasive from damaging the roller body 10 during grinding, the grinding roller 100 further includes a guard 70. The protector 70 is provided to an inner wall of the drum body 10 to separate the abrasive from the drum body 10 when sanding, so as to prevent damage to the drum body 10.

The guard 70 may be fixedly connected to the drum body 10 or detachably connected thereto. In order to facilitate the switching between the dry grinding and wet grinding states, the partial protection member 70 is detachably connected to the drum body 10 in this embodiment.

For example, in one embodiment, the guard 70 is a multi-piece sheet structure. The plurality of protection members 70 are fixed to the fixing unit 11 and the first mounting plate 121, respectively, so that the corresponding protection members 70 can be separated from the fixing unit with the first mounting plate 121 when the first mounting plate 121 is detached from the fixing unit 11.

To facilitate fixing the protection member 70 to the first mounting plate 121, in an embodiment, a plurality of threaded holes 71 are formed in the protection member 70, and screws are inserted through the threaded holes 71 to fix the protection member 70 to the first mounting plate 121. It should be noted that, the screw may be a plastic screw to prevent the workpiece from being damaged during grinding. It is understood that the fixing manner of the protection component 70 and the first mounting plate 121 is not limited thereto, and any connection manner that can fix the protection component 70 to the first mounting plate 121 without damaging the workpiece may be adopted.

It should be noted that, in the dry-grinding state, in order to enable the ventilation member 50 to extend into the roller body 10 and communicate with the roller cavity, a through hole (not shown in the figure, specifically, the through hole and the threaded hole 71 may be disposed at the same position when disposed on the protection member 70 fixed on the first mounting plate 121 with the heat dissipation hole 1211, for example, a step-shaped structure may be disposed in the hole for fixing, and the fixing and heat dissipation may be performed through the same position to save the hole opening space), the through hole is disposed corresponding to the heat dissipation hole 1211 and the ventilation member 50 on the first mounting plate 121, and the ventilation member 50 extends into the through hole and communicates with the roller cavity.

In a wet grinding state, referring to fig. 1, the first mounting plate 121 is a sealing structure and is not provided with the heat dissipation holes 1211, accordingly, only the threaded holes 71 are provided on the protection member 70 for fixing with the first mounting plate 121 (the first mounting plate 121 is a schematic structure in fig. 1 and corresponding threaded holes are not shown), and through holes communicating with the heat dissipation holes 1211 are not provided on the protection member 70, so as to obtain better sealing performance.

In one embodiment, the protection member 70 is made of acrylic rubber. Compared with the existing protection part 70, the protection part 70 is stable and wear-resistant, is convenient to process and manufacture, and reduces the outsourcing maintenance cost. It will be appreciated that the high-gravity rubber is the most preferred material for the guard 70, and other wear-resistant and easily fabricated materials may be substituted herein.

In order to lower the center of gravity of the roller body 10 and to make the roller body 10 rotate more smoothly, the grinding roller 100 further includes a weight member 80, and the weight member 80 is fixed on the bottom plate 113. In one embodiment, the weight member 80 is cast iron. It is understood that the material of the weight member 80 is not limited thereto, and in other embodiments, the material of the weight member 80 may be wood, rubber, plastic, cement, or the like.

To connect the cylinder body 10 and the circumscribing rotating device, the grinding cylinder 100 further includes two rotating members 90. The two rotation members 90 are respectively disposed at the center positions of the two opposite second mounting plates 111 to transmit the driving force of the external rotation device to the drum body 10. In one embodiment, the rotor 90 is shaped as a disk and has the same diameter as the rotational axis of the external rotating device in order to fit the external rotating device. It will be appreciated that the shape of the rotation member 90 is not limited thereto, and that the shape of the rotation member 90 is adapted to the rotation axis of the external rotation device and is changed accordingly as the shape of the rotation axis is changed.

An embodiment of the present application operates as follows: in operation, in a dry grinding state, the non-sealing plate with the heat dissipation holes 1211 is fixed on the second mounting plate 111, and a workpiece to be ground and a corresponding and appropriate amount of abrasive are placed into the drum body 10. The two rotating members 90 are connected to an external rotating device, and the roller body 10 rotates along with the external rotating device to dry grind a workpiece, it should be understood that, during normal grinding operation, the roller body 10 does not rotate, but is only driven by the external rotating device to revolve around a certain center.

When it is required to convert to a wet grinding state, the non-sealing first mounting plate 1211 with the heat radiating holes 1211 is removed and replaced with the sealing first mounting plate 121, and the above rotation operation is repeated to wet grind the workpiece.

The above-mentioned grinding roller 100 is provided by arranging the roller body 10 as the fixed member 11 and the movable member 12 which are detachably coupled, and arranging the first mounting plate 121 as a sealing structure which is replaceable with each other or a non-sealing structure with heat radiating holes 1211. When the grinding material is solid, the first mounting plate 121 with the heat dissipation holes 1211 is connected with the fixing component 11, so as to facilitate the heat dissipation of the grinding roller 100; when the liquid substance is added into the abrasive to assist grinding, the sealed first mounting plate 121 is connected with the fixing assembly 11, so that the liquid substance can be prevented from spilling during grinding.

In addition, those skilled in the art should realize that the above embodiments are illustrative only and not limiting to the present application, and that suitable changes and modifications to the above embodiments are within the scope of the disclosure of the present application as long as they are within the true spirit and scope of the present application.

Claims

1. A grinding roller comprises a roller body, the roller body is used for containing products to be ground and grinding materials, and is characterized in that,

the roller body comprises a fixed assembly and a movable assembly, the fixed assembly and the movable assembly are arranged in a surrounding mode to form a roller inner cavity, and the movable assembly is arranged above the fixed assembly and detachably connected with the fixed assembly;

the fixed assembly is a sealing structure, the movable assembly comprises a first mounting plate, and the first mounting plate is detachably connected with the fixed assembly; the fixed component is enclosed to form a cavity with the volume being 1/3-4/5 of the volume of the inner cavity of the roller.

2. The grinding drum of claim 1, wherein the first mounting plate is a seal structure.

3. The grinding drum of claim 1, wherein the first mounting plate is a non-sealing structure with heat dissipation holes.

4. The grinding cylinder of claim 1, wherein the securing assembly defines a chamber volume that is 1/2-2/3 times the cylinder internal chamber volume.

5. The grinding drum of claim 1, wherein the fixing assembly comprises a second mounting plate, a third mounting plate and a bottom plate which are oppositely arranged, and the second mounting plate, the third mounting plate and the bottom plate are sequentially connected in a sealing manner;

the grinding roller further comprises a fixing piece, corresponding mounting holes are formed in the first mounting plate and the second mounting plate, and the fixing piece extends into the mounting holes in the first mounting plate and the second mounting plate so as to fix the first mounting plate and the second mounting plate.

6. The grinding drum of claim 1, further comprising a seal disposed at a junction of the movable assembly and the fixed assembly for sealing the movable assembly and the fixed assembly when the movable assembly is installed.

7. The grinding drum of claim 1, wherein the movable assembly further comprises a cover plate, the cover plate is a sealing structure and is disposed above the first mounting plate, and the cover plate, together with the first mounting plate and the fixed assembly, forms the drum body.

8. The grinding cylinder according to claim 3, further comprising a plurality of air permeable members at least partially disposed within the heat sink apertures.

9. The grinding roller as claimed in claim 8, wherein the ventilation member comprises a connecting portion and a ventilation portion disposed on the connecting portion, the connecting portion is disposed in the heat dissipating hole, the connecting portion defines a first ventilation hole communicating with the inner cavity of the roller, and the ventilation portion defines a plurality of second ventilation holes communicating with each other and the first ventilation hole.

10. The grinding roller according to claim 9, further comprising a filter member disposed in the connecting portion, wherein the filter member defines a plurality of third ventilation holes, and a cross-sectional area of the third ventilation holes is smaller than a cross-sectional area of the abrasive material.