CN217453428U - Oxide skin removing device - Google Patents

Abstract

The utility model provides an oxide skin removing device, which is used for removing oxide skin on the surface of a workpiece and comprises a base, two supporting components, a brush roller shaft and a brush roller, wherein the two supporting components are connected with the base; the two axial ends of the brush roll shaft are respectively and rotatably connected with the two supporting components; the brush roll is sleeved on the outer peripheral side of the brush roll shaft and positioned between the two supporting assemblies, and rotates along with the brush roll shaft; wherein, at least one end in the axial both ends of brush roller axle passes through the connecting piece and is rotationally connected with supporting component, and connecting piece and brush roller axle detachably are connected. The utility model provides an among the prior art when changing the brush roll, need dismouting bearing and seriously influence the life's of bearing problem.

Description

Oxide skin removing device

Technical Field

The utility model relates to a substrate surface treatment equipment technical field particularly, relates to an oxide skin remove device.

Background

In the prior art, the surface of a steel plate is polished through high-speed rotation of the brush rolls to remove oxide skins on the surface of the steel plate, and the requirements on the rust removal speed, the surface cleanliness and the like of the surface of the steel plate in the current market are high, and the rust removal effect of a single brush roll on the surface of the steel plate is poor, so that the requirements on basic rust removal speed and rust removal effect can be met by more brush rolls. In addition, the brush roll belongs to the loss thing, uses after for a certain time, needs to change it, and especially the more processing production line of brush roll, the brush roll that needs to change frequency is also higher.

However, the both ends of the brush roller axle that is used for installing the brush roller of current realize synchronous rotation through with bearing transition fit or interference fit, when needs are changed the brush roller, need dismantle earlier the bearing, still need install the bearing again after accomplishing the change, and consuming time and power, and carry out the dismouting to the bearing many times, seriously influence the life of bearing.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a scale removing apparatus for brush rolls, which can remove the scale from the brush rolls without the need of disassembling the bearings and greatly affecting the service life of the bearings.

In order to achieve the purpose, the utility model provides an oxide skin removing device which is used for removing oxide skin on the surface of a workpiece and comprises a base, two supporting components, a brush roller shaft and a brush roller, wherein the two supporting components are connected with the base; the two axial ends of the brush roll shaft are respectively and rotatably connected with the two supporting components; the brush roll is sleeved on the outer peripheral side of the brush roll shaft and positioned between the two supporting assemblies, and rotates along with the brush roll shaft; at least one of the two axial ends of the brush roll shaft is rotatably connected with the supporting component through a connecting piece, and the connecting piece is detachably connected with the brush roll shaft.

Further, the supporting assembly comprises a mounting seat and a bearing, the mounting seat is connected with the base, and the mounting seat is provided with a bearing chamber; the bearing is arranged in the bearing chamber; one part of the connecting piece is arranged in the bearing chamber and is positioned between the inner ring of the bearing and the outer peripheral surface of the brush roller shaft, and the other part of the connecting piece protrudes out of the bearing chamber.

Further, the connecting piece includes the tight cover subassembly that expands, and one part in the tight cover subassembly that expands is connected with the inner circle of bearing, and the other part of the tight cover subassembly that expands is connected with the outer peripheral face of brush roller axle.

Furthermore, the expansion sleeve assembly comprises an annular sleeve, an expansion cylinder and a first fastener, wherein the annular sleeve is sleeved on the outer peripheral side of the brush roller shaft and is positioned in the bearing chamber, a spacing space is formed between the inner peripheral surface of the annular sleeve and the outer peripheral surface of the brush roller shaft, and the outer peripheral surface of the annular sleeve is connected with the inner ring of the bearing; the expansion cylinder is sleeved on the outer peripheral side of the brush roll shaft, one end, facing the brush roll, of the expansion cylinder penetrates through the spacing space, the inner peripheral surface of the expansion cylinder is connected with the outer peripheral surface of the brush roll shaft, and one end, far away from the brush roll, of the expansion cylinder protrudes out of the bearing chamber; the first fastener is arranged along the axial extension of the brush roller shaft to connect the expansion cylinder and the annular sleeve.

Further, the tight section of thick bamboo that expands is including the annular linkage segment and the tight section of thick bamboo section of toper that are connected, and the setting of interval space is passed to at least partly of the tight section of thick bamboo section of toper, and at least partly protrusion in the bearing room setting of annular linkage segment has seted up first pilot hole on the annular linkage segment, and the second pilot hole has been seted up to the position department that annular sleeve is relative with first pilot hole, and first fastener passes first pilot hole and stretches into the setting of second pilot hole.

Furthermore, the outer peripheral surface of the expansion cylinder is matched with the inner peripheral surface of the annular sleeve, and the outer peripheral surface of the expansion cylinder and the inner peripheral surface of the annular sleeve are conical surfaces.

Furthermore, the brush roll shaft comprises a mounting shaft section and two assembling shaft sections which are connected, the mounting shaft section is used for mounting the brush roll, the two assembling shaft sections are respectively located at two axial ends of the mounting shaft section, the diameters of the two assembling shaft sections are gradually reduced along the direction far away from the mounting shaft section, the connecting piece comprises a sleeve, the sleeve is sleeved on the outer peripheral side of the assembling shaft section, the inner peripheral surface of the sleeve is matched with the outer peripheral surface of the assembling shaft section, and the outer peripheral surface of the sleeve is connected with the inner ring of the bearing.

Further, the brush roll shaft further comprises a driving shaft section, the driving shaft section is connected with one of the two assembling shaft sections, and the scale removing device further comprises a driving portion, and the driving portion is in driving connection with the driving shaft section.

Furthermore, the sleeve comprises a first sleeve and a second sleeve, the first sleeve is provided with a tapered hole, the first sleeve is sleeved on the outer peripheral side of the assembling shaft section connected with the driving shaft section in the two assembling shaft sections, the outer peripheral surface of the first sleeve is provided with a clamp spring groove, and a clamp spring is arranged in the clamp spring groove; the second sleeve is provided with a conical accommodating groove, an avoiding hole is formed in the bottom surface of the conical accommodating groove, the assembling shaft sections which are not connected with the driving shaft sections in the two assembling shaft sections stretch into the conical accommodating groove to be arranged, the oxide skin removing device further comprises a second fastener, and the second fastener penetrates through the avoiding hole and is connected with the assembling shaft sections.

Furthermore, the brush roller is a brush roller, and the brush roller shaft are integrally formed; or the brush rolls are brush rings or thousand impeller, and the brush rolls are a plurality of, and a plurality of brush rolls are arranged along the axial of the brush roll shaft in sequence, and each brush roll is connected with the brush roll shaft through a key.

By applying the technical proposal of the utility model, at least one of the two axial ends of the brush roller shaft is rotatablely connected with the supporting component through the connecting piece, and simultaneously, the connecting piece is detachably connected with the brush roller shaft, thus, when the brush roll on the brush roll shaft needs to be replaced or the brush roll and the brush roll shaft are directly replaced, the connecting piece only needs to be detached from the brush roll shaft, thereby removing the connection relation between the brush roller shaft and the supporting component, avoiding the supporting component from being directly disassembled from the brush roller shaft, avoiding the supporting component from being damaged due to repeated disassembly of the supporting component, ensuring the service life of the supporting component, and when the replacement of the brush roller on the brush roller shaft is completed, or when the whole of the brush roll and the brush roll shaft is replaced, the brush roll shaft and the supporting assembly are rotatably connected through the connecting piece, and in addition, the connecting piece can also ensure the convenience of dismounting the supporting assembly.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view showing a part of a prior art scale removing apparatus;

fig. 2 shows a schematic partial structural view of a scale removing apparatus according to a first embodiment of the present invention;

FIG. 3 shows an enlarged schematic view of the structure at A in FIG. 2;

fig. 4 shows a schematic partial structural view of a scale removing apparatus according to a second embodiment of the present invention;

fig. 5 shows an enlarged schematic view of the structure at B in fig. 4;

fig. 6 shows a schematic structural view of a brush roller of an alternative embodiment of the scale removing apparatus according to the present invention;

fig. 7 shows a schematic view of a brush ring or a spider of a scale removing device according to another alternative embodiment of the present invention mounted on a brush roll shaft;

fig. 8 shows a schematic view of the structure of the brush ring or the thousand impellers of fig. 7.

Wherein the figures include the following reference numerals:

10. a support assembly; 11. a mounting base; 111. a bearing chamber; 12. a bearing;

20. a brush roller shaft; 21. assembling the shaft section; 22. a drive shaft section;

30. a brush roll; 31. brushing; 32. sanding; 33. a keyway;

40. a connecting member; 41. expanding the sleeve assembly; 411. an annular sleeve; 412. expanding and tightening the cylinder; 4121. an annular connecting section; 4122. a conical expansion cylinder section; 413. a first fastener; 42. a sleeve; 421. a first sleeve; 4211. a clamp spring groove; 422. a second sleeve;

50. a second fastener;

60. a nut; 70. the brush roll pressing block; 80. a key.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In order to solve the problem that the brush roller needs to be disassembled and assembled when being replaced, and the service life of the bearing is seriously influenced, the utility model provides an oxide skin removing device.

As shown in fig. 1, in the prior art, a brush roller shaft 20 of the scale removing device is directly in interference fit or over-fit with a bearing 12 in a bearing chamber 111 of a support assembly 10, when the whole of the brush roller shaft 20 and a brush roller 30 is replaced or the brush roller 30 on the brush roller shaft 20 is replaced, the bearing 12 needs to be detached, after the replacement operation is completed, the bearing 12 needs to be installed again, and the bearing 12 is worn due to multiple times of detachment and installation.

Example one

As shown in fig. 2 and 3, the scale removing apparatus for removing scale on the surface of a workpiece includes a base, two support assemblies 10, a brush roller shaft 20, and a brush roller 30, both support assemblies 10 being connected to the base; the two axial ends of the brush roller shaft 20 are respectively and rotatably connected with the two support assemblies 10; the brush roll 30 is sleeved on the outer peripheral side of the brush roll shaft 20 and is positioned between the two support assemblies 10, and the brush roll 30 rotates along with the brush roll shaft 20; at least one of the two axial ends of the brushroll shaft 20 is rotatably connected to the support assembly 10 through a connecting member 40, and the connecting member 40 is detachably connected to the brushroll shaft 20.

By applying the technical scheme of the utility model, at least one end of the two axial ends of the brush roller shaft 20 is rotatably connected with the supporting component 10 through the connecting piece 40, and meanwhile, the connecting piece 40 is detachably connected with the brush roller shaft 20, so that when the brush roller 30 on the brush roller shaft 20 needs to be replaced, or the brush roller 30 and the brush roller shaft 20 are directly replaced, only the connecting piece 40 needs to be detached from the brush roller shaft 20, thereby removing the connection relation between the brush roller shaft 20 and the supporting component 10, not directly detaching the supporting component 10 from the brush roller shaft 20, avoiding the supporting component 10 from being damaged due to the repeated detachment of the supporting component 10, ensuring the service life of the supporting component 10, when the replacement of the brush roller 30 on the brush roller shaft 20 is completed, or the brush roller 30 and the brush roller shaft 20 are integrally replaced, and then the brush roller shaft 20 and the supporting component 10 are rotatably connected through the connecting piece 40, in addition, the connecting piece 40 is arranged, and the convenience of assembling and disassembling the support assembly 10 can be ensured.

As shown in fig. 2 and 3, the support assembly 10 includes a mount 11 and a bearing 12, the mount 11 is connected with the base, and the mount 11 has a bearing chamber 111; the bearing 12 is disposed in the bearing chamber 111; wherein, a part of the connection member 40 is disposed in the bearing chamber 111 and between the inner ring of the bearing 12 and the outer circumferential surface of the brush roller shaft 20, and the other part of the connection member 40 is disposed to protrude from the bearing chamber 111. In this way, by providing the support assembly 10 in a structural form including the mount 11 and the bearing 12, the connection reliability of the support assembly 10 to the base is ensured, and the rotation reliability of the brush roller shaft 20 is ensured.

As shown in fig. 2 and 3, the connecting member 40 includes an expansion sleeve assembly 41, one portion of the expansion sleeve assembly 41 being connected to the inner race of the bearing 12, and the other portion of the expansion sleeve assembly 41 being connected to the outer circumferential surface of the brush roller shaft 20. In this way, the expansion sleeve assembly 41 plays a role of tightly coupling the brush roller shaft 20 with the bearing 12 by its own expansion action, thereby ensuring the smooth rotation of the brush roller shaft 20.

As shown in fig. 2 and 3, the expansion sleeve assembly 41 includes an annular sleeve 411, an expansion sleeve 412 and a first fastener 413, wherein the annular sleeve 411 is sleeved on the outer periphery side of the brush roller shaft 20 and is located in the bearing chamber 111, a spacing space is formed between the inner peripheral surface of the annular sleeve 411 and the outer peripheral surface of the brush roller shaft 20, and the outer peripheral surface of the annular sleeve 411 is connected with the inner ring of the bearing 12; the expansion cylinder 412 is sleeved on the outer peripheral side of the brush roll shaft 20, one end, facing the brush roll 30, of the expansion cylinder 412 penetrates through the interval space, the inner peripheral surface of the expansion cylinder 412 is connected with the outer peripheral surface of the brush roll shaft 20, and one end, far away from the brush roll 30, of the expansion cylinder 412 protrudes out of the bearing chamber 111; a first fastener 413 is provided extending in the axial direction of the brush roller shaft 20 to connect the expansion cylinder 412 and the annular sleeve 411. In this way, the connection reliability between the brush roller shaft 20 and the bearing 12 is ensured.

It should be noted that, in the present application, both the annular sleeve 411 and the expansion cylinder 412 of the expansion sleeve assembly 41 have a break, and on the premise that both have a break, under the fastening action of the first fastening member 413 (which may be a bolt), the inside and outside expansion and contraction of the annular sleeve 411 and the expansion cylinder 412 are realized.

Further, as shown in fig. 2 and 3, the expansion cylinder 412 includes an annular connection section 4121 and a conical expansion cylinder section 4122, which are connected to each other, at least a portion of the conical expansion cylinder section 4122 is disposed to penetrate through the space, at least a portion of the annular connection section 4121 protrudes from the bearing chamber 111, a first assembly hole is formed in the annular connection section 4121, a second assembly hole is formed in a position of the annular sleeve 411 opposite to the first assembly hole, and the first fastening member 413 penetrates through the first assembly hole and extends into the second assembly hole. In this way, the connection reliability of the annular sleeve 411 and the expansion cylinder 412 is ensured.

In this embodiment, the outer peripheral surface of the expansion cylinder 412 and the inner peripheral surface of the annular sleeve 411 are fitted, and both the outer peripheral surface of the expansion cylinder 412 and the inner peripheral surface of the annular sleeve 411 are tapered surfaces. Thus, the expansion sleeve assembly 41 can be ensured to have a better expansion effect.

Example two

As shown in fig. 4 and 5, the brush roll shaft 20 includes a connecting mounting shaft section and two assembling shaft sections 21, the mounting shaft section is used for mounting the brush roll 30, the two assembling shaft sections 21 are respectively located at two axial ends of the mounting shaft section, the diameters of the two assembling shaft sections 21 are gradually reduced along a direction far away from the mounting shaft section, the connecting member 40 includes a sleeve 42, the sleeve 42 is sleeved on the outer peripheral side of the assembling shaft section 21, the inner peripheral surface of the sleeve 42 is matched with the outer peripheral surface of the assembling shaft section 21, and the outer peripheral surface of the sleeve 42 is connected with the inner ring of the bearing 12. In this way, by providing the brush roller shaft 20 in a structural form including the connected mounting shaft section and the two assembling shaft sections 21, the supporting reliability of the brush roller shaft 20 to the brush roller 30 is ensured, and the connecting reliability between the brush roller shaft 20 and the support member 10 is ensured.

As shown in fig. 4 and 5, the brush roller shaft 20 further includes a drive shaft section 22, the drive shaft section 22 is connected to one of the two assembly shaft sections 21, and the descaling device further includes a drive part, which is drivingly connected to the drive shaft section 22. Thus, the driving part serves to provide a driving force to the brush roller shaft 20, and the rotational reliability of the brush roller shaft 20 is ensured.

Alternatively, the driving part may be a motor and a coupling to drive the brush roller shaft 20, or the brush roller shaft 20 may be driven by a pulley.

It should be noted that, in the present embodiment, considering that the diameters of the two assembling shaft sections 21 are gradually decreased in the direction away from the mounting shaft sections, as shown in fig. 4 and 5, the sleeve 42 includes a first sleeve 421 and a second sleeve 422, where the first sleeve 421 has a tapered hole, the first sleeve 421 is fitted over the outer peripheral side of the assembling shaft section 21 connected to the driving shaft section 22 in the two assembling shaft sections 21, the outer peripheral surface of the first sleeve 421 has a snap spring groove 4211, and a snap spring is provided in the snap spring groove 4211; the second sleeve 422 is provided with a conical accommodating groove, an avoiding hole is formed in the bottom surface of the conical accommodating groove, the assembling shaft sections 21 which are not connected with the driving shaft section 22 in the two assembling shaft sections 21 extend into the conical accommodating groove, the oxide skin removing device further comprises second fasteners 50, and the second fasteners 50 penetrate through the avoiding hole and are connected with the assembling shaft sections 21. In this way, the first sleeve 421 with the tapered hole can be connected with the assembling shaft section 21 on the driving shaft section 22 side in a matching manner, so that the rotating connection reliability between one side of the brush roller shaft 20 close to the driving shaft section 22 and the support component 10 is ensured, and in addition, the second sleeve 422 with the tapered accommodating groove can be connected with the assembling shaft section 21 on the other side in a matching manner, so that the rotating connection reliability between the other side of the brush roller shaft 20 and the support component 10 is ensured.

As shown in fig. 6, the brush roller 30 is a brush roller made of bristles 31, and is integrally formed with the brush roller shaft 20. For the structure in which the brush roller and the brush roller shaft 20 are integrally formed, when the brush roller is replaced or maintained, the brush roller and the brush roller shaft 20 need to be replaced together.

As shown in fig. 7 and 8, the brush roller 30 is a brush ring or a spider, and is made of a sand sheet 32, and the plurality of brush rollers 30 are sequentially arranged along the axial direction of the brush roller shaft 20, and each brush roller 30 is connected to the brush roller shaft 20 by a key 80. Like this, ensure that each brush roll 30 passes through the reliability of being connected of key 80 and brush roll axle 20, have keyway 33 on the internal wall of brush roll 30, simultaneously, the installation axial segment of brush roll axle 20 is the optical axis, and the optical axis also has an axle keyway with keyway 33 corresponding position department, and a part of key 80 is located keyway 33, and another part is located the axle keyway to ensure the reliability of being connected between the two, this kind need not change brush roll axle 20, only need remove the connecting action between brush roll axle 20 and the brush roll 30 through key 80, take off brush roll 30 can.

Optionally, the brush ring or the thousand-blade wheel is mainly made of bristles or sand into a ring structure, the inner ring is made of steel, and the inner ring is provided with a key groove 33.

As shown in fig. 7 and 8, two key slots 33 are formed, and the two key slots 33 are located on the same diameter of the brush roller 30, so that the brush roller 30 can perform a dynamic balance function when rotating at a high speed along with the brush roller shaft 20.

It should be noted that, in this application, after the brush roller 30 is mounted on the brush roller shaft 20, the brush roller pressing blocks 70 are further sleeved on the outer peripheral sides of the two axial ends of the brush roller shaft 20, the two axial ends of the brush roller 30 are respectively pressed, and the nuts 60 are respectively screwed on the two brush roller pressing blocks 70, so that the brush roller 30 is prevented from falling off the brush roller shaft 20.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be discussed further in subsequent figures.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the accompanying drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A scale removing apparatus for removing scale on a surface of a workpiece, comprising:

a base;

two support assemblies (10), both support assemblies (10) being connected with the base;

the two axial ends of the brush roller shaft (20) are respectively and rotatably connected with the two support assemblies (10);

the brush roll (30) is sleeved on the outer peripheral side of the brush roll shaft (20) and located between the two support assemblies (10), and the brush roll (30) rotates along with the brush roll shaft (20);

wherein, at least one end in the axial both ends of brush roller axle (20) pass through connecting piece (40) with support component (10) rotationally connects, just connecting piece (40) with brush roller axle (20) detachably connects.

2. Scale removal apparatus as claimed in claim 1, wherein the support assembly (10) comprises:

a mounting seat (11), wherein the mounting seat (11) is connected with the base, and the mounting seat (11) is provided with a bearing chamber (111);

a bearing (12), the bearing (12) being disposed within the bearing chamber (111);

wherein, a part of the connecting piece (40) is arranged in the bearing chamber (111) and is positioned between the inner ring of the bearing (12) and the outer peripheral surface of the brush roller shaft (20), and the other part of the connecting piece (40) is arranged by protruding out of the bearing chamber (111).

3. The scale removing apparatus as recited in claim 2, wherein the connecting member (40) includes an expansion sleeve assembly (41), one portion of the expansion sleeve assembly (41) being connected to an inner race of the bearing (12), and another portion of the expansion sleeve assembly (41) being connected to an outer circumferential surface of the brush roller shaft (20).

4. The scale removing apparatus as recited in claim 3, wherein the expansion sleeve assembly (41) comprises:

the annular sleeve (411) is sleeved on the outer peripheral side of the brush roller shaft (20) and is positioned in the bearing chamber (111), a spacing space is formed between the inner peripheral surface of the annular sleeve (411) and the outer peripheral surface of the brush roller shaft (20), and the outer peripheral surface of the annular sleeve (411) is connected with the inner ring of the bearing (12);

the tightening and expanding cylinder (412) is sleeved on the outer peripheral side of the brush roller shaft (20), one end, facing the brush roller (30), of the tightening and expanding cylinder (412) penetrates through the interval space, the inner peripheral surface of the tightening and expanding cylinder (412) is connected with the outer peripheral surface of the brush roller shaft (20), and one end, far away from the brush roller (30), of the tightening and expanding cylinder (412) protrudes out of the bearing chamber (111);

a first fastener (413), the first fastener (413) being arranged along an axial extension of the brush roller shaft (20) to connect the expansion cylinder (412) and the annular sleeve (411).

5. The scale removing apparatus as claimed in claim 4, wherein the expansion cylinder (412) includes a ring-shaped connection section (4121) and a cone-shaped expansion cylinder section (4122) connected to each other, at least a portion of the cone-shaped expansion cylinder section (4122) is disposed to pass through the space, at least a portion of the ring-shaped connection section (4121) is disposed to protrude from the bearing housing (111), the ring-shaped connection section (4121) is formed with a first fitting hole, a second fitting hole is formed at a position of the ring-shaped sleeve (411) opposite to the first fitting hole, and the first fastening member (413) is disposed to pass through the first fitting hole and extend into the second fitting hole.

6. The scale removing device as recited in claim 4, wherein an outer circumferential surface of the expansion cylinder (412) and an inner circumferential surface of the annular sleeve (411) are fitted, and the outer circumferential surface of the expansion cylinder (412) and the inner circumferential surface of the annular sleeve (411) are tapered.

7. The scale removing device according to claim 2, wherein the brush roller shaft (20) comprises a connecting installation shaft section and two assembly shaft sections (21), the installation shaft section is used for installing the brush roller (30), the two assembly shaft sections (21) are respectively arranged at two axial ends of the installation shaft section, the diameters of the two assembly shaft sections (21) are gradually reduced along a direction far away from the installation shaft section, the connecting piece (40) comprises a sleeve (42), the sleeve (42) is sleeved on the outer peripheral side of the assembly shaft section (21), the inner peripheral surface of the sleeve (42) is matched with the outer peripheral surface of the assembly shaft section (21), and the outer peripheral surface of the sleeve (42) is connected with the inner ring of the bearing (12).

8. The scale removing device according to claim 7, wherein the brush roller shaft (20) further comprises a drive shaft section (22), the drive shaft section (22) being connected to one of the two assembly shaft sections (21), the scale removing device further comprising a drive section, which is in driving connection with the drive shaft section (22).

9. The scale removing apparatus as recited in claim 8, wherein the sleeve (42) comprises:

the first sleeve (421) is provided with a tapered hole, the first sleeve (421) is sleeved on the outer peripheral side of the assembling shaft section (21) connected with the driving shaft section (22) in the two assembling shaft sections (21), the outer peripheral surface of the first sleeve (421) is provided with a clamp spring groove (4211), and a clamp spring is arranged in the clamp spring groove (4211);

second sleeve (422), second sleeve (422) have the toper holding tank, just seted up on the tank bottom surface of toper holding tank and dodged the hole, two in assembly shaft section (21) do not with driveshaft section (22) are connected assembly shaft section (21) stretch into set up in the toper holding tank, the cinder remove device still includes second fastener (50), second fastener (50) pass dodge the hole and with assembly shaft section (21) are connected.

10. The scale removing apparatus as recited in claim 1,

the brush roller (30) is a brush roller, and the brush roller shaft (20) are integrally formed; or the like, or, alternatively,

the brush rolls (30) are hair brush rings or thousand-blade wheels, the number of the brush rolls (30) is multiple, the brush rolls (30) are sequentially arranged along the axial direction of the brush roll shaft (20), and the brush rolls (30) are connected with the brush roll shaft (20) through keys (80).

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