CN115284146A - Adjustable steel wire wheel brush and using method thereof - Google Patents

Abstract

The invention relates to the field of wire wheel brushes, in particular to an adjustable wire wheel brush and a method for using the same. The grinding steel wire on the surface; the first chute set on the inner side of the support plate, the two first sliders set in the first chute; the hinge rod whose top is hinged with the lower surface of the first slide block, the support board is facing There is a surface groove on the side surface of the rotating shaft; the inner shaft is located at the position where the two hinge rods intersect each other; the upper surface is hinged with the bottom end of the hinge rod, and the pull block is provided with perforations running through both sides; The connecting rod is slidably connected with the perforation; the driving part is used to drive the two pull blocks on the connecting rod to approach or move away from each other. By means of the present invention, when the steel wire wheel brush is used to remove rust on the profiled steel, the multi-surfaces of the profiled steel can be removed from rust at the same time, thereby improving the work efficiency.

Description

An adjustable wire wheel brush and its use method

technical field

The invention relates to the field of wire wheel brushes, in particular to an adjustable wire wheel brush and its usage method.

Background technique

The wire wheel brush is used to derust the rusted section steel. Here, the wire wheel brush is flat. When derusting, the operator installs the wire wheel brush on the hand-held driving device. After starting, the hand-held The driving device drives the wire wheel brush to run at high speed, and the operator can derust the steel when the wire brush is in contact with the surface of the steel. Time, only one surface of the section steel can be derusted, and the work efficiency is not high.

In the patent No. CN202022358186.1, the patent name is a patent for a high-strength deburring steel wire wheel brush, which includes the wheel brush body, steel wire bristles and the first through hole, and the outer wall of the wheel brush body is fixed with steel wire bristles. Limiting devices are installed on the left and right sides of the wheel brush body. The high-strength deburring wire wheel brush can pass the first baffle plate and the second baffle plate to connect the wheel brush body The position of the wheel brush is fixed, and then the wheel brush body is pressed against the screw and nut, and it is also convenient to replace the wheel brush body, thereby saving the cost of use. Through the nut head, screw rod, circular gasket, and the first through hole , the second through hole and the third through hole and other structures, the circular gasket can be installed on the screw, and the screw can be passed through the first through hole, the second through hole and the third through hole at the same time, and then The nut is connected with the screw rod, thereby improving the fixing effect, but the above technical problems are not solved.

Contents of the invention

In view of this, the purpose of the present invention is to propose an adjustable steel wire wheel brush and its use method to solve the problem that only one surface of the steel wire wheel brush can be derusted at the same time when the steel wire wheel brush is derusted. The problem of low work efficiency.

Based on the above purpose, the present invention provides an adjustable wire wheel brush, including a rotating shaft, and the adjustable wire wheel brush also includes:

At least two grinding areas arranged on the side surface of the rotating shaft, the two grinding areas are arranged in parallel, and the grinding areas include a plurality of supporting plates and grinding steel wires arranged on the outer surface of the supporting plates;

A first chute provided on the inner surface of the pallet, two first sliders provided in the first chute, the first sliders are slidably connected to the first chute;

A hinged rod whose top end is hinged to the lower surface of the first slider, a surface groove is provided on the side surface of the rotating shaft facing the supporting plate, a part of the hinged rod extends into the surface groove, and two parts are located on the surface The hinged rods in the groove cross each other;

an inner shaft arranged at the position where the two hinged rods intersect each other, said inner shaft is rotatably connected with the shaft hole arranged on the side surface of the hinged rod;

A pull block whose upper surface is hinged to the bottom end of the hinge rod, and the pull block is provided with perforations running through its two sides;

a connecting rod located in the surface groove, the end of the connecting rod is fixed on the side wall of the surface groove, and the connecting rod is slidably connected with the through hole;

The driving part used to drive the two pull blocks on the connecting rod to approach or move away from each other.

Further, the supporting plates are circular arc plates. In the same grinding area, when the driving part makes the end surfaces of adjacent supporting plates contact each other, a plurality of supporting plates form a complete circle. At this time, the The central axis of the circular ring coincides with the central axis of the rotating shaft.

Further, there are three grinding areas, and the width of the supporting plate in the grinding area located in the middle is greater than the width of the supporting plates in the grinding areas located in the two sides.

Further, the drive unit includes:

The first spring is sleeved on the connecting rod, the first spring is located between the two pull blocks, and the end of the first spring is fixed to the side of the corresponding pull block;

An annular groove arranged on one end surface of the rotating shaft and an annular cylinder sleeved in the annular groove, the inner hole of the annular cylinder is rotatably connected to the inner side wall of the annular groove, and the bottom of the surface groove is connected to the The ring groove is connected;

The rotating rod corresponding to the pull block, the front and rear side walls of the surface groove are provided with guide grooves, and the end of the rotating rod is slidably connected with the corresponding guide groove;

The rewinding wheel installed on the rotating rod, one end is fixed to the stay rope in the rewinding groove of the rewind wheel, and the other end of the stay rope is fixed to the side of the corresponding pull block;

a first drive assembly for driving the rotating rod to slide along the guide groove;

A second drive assembly for driving the torus to rotate;

The first gear installed on the rotating rod, the outer surface of the circular cylinder is provided with an external gear, the first gear is matched with the external gear, after the first gear meshes with the external gear, when the second drive assembly When the inner cylinder is driven to rotate, the two take-up wheels simultaneously rewind the stay cord or simultaneously release the stay cord.

When it is necessary to adjust the supporting plate in a certain grinding area, firstly make the first drive assembly in other grinding areas move, so that the rotating rod drives the gear to move away from the ring cylinder, and finally the first gear is separated from the external gear. After completion , it is necessary to adjust the action of the first drive assembly in the grinding area of the pallet, so that the rotating rod drives the gear to move towards the direction close to the circular cylinder, so that the first gear meshes with the outer gear. After completion, the second drive assembly moves to drive The ring cylinder rotates, thereby driving the first gear to rotate. When the first gear rotates, the rewinding wheel is driven by the rotating rod to rewind the pull cord, so that the pull blocks overcome the elastic force of the first spring and move closer to each other, and drive the support through the hinged rod. The plate is far away from the rotating shaft; when the rotating rod drives the winding wheel to release the pull cord, the pulling blocks are separated from each other under the elastic force of the first spring, so that the supporting plate is close to the rotating shaft.

Further, the first drive assembly includes:

The second chute located on one side of the guide groove, the second slider slidably connected with the second chute, the second electromagnet fixed in the second slider, and the second chute fixed on the top of the second chute a first electromagnet, the first electromagnet facing the second electromagnet;

A side ring groove provided on the side surface of the rotating rod, a rotating block rotatably connected to the side ring groove, a push rod with one end hinged to the side of the second slider, and the other end of the push rod hinged to the side of the rotating block.

Further, the second drive assembly includes a drive shaft and a second gear mounted on the drive shaft, the second gear matches the external gear, the circular cylinder extends to the outside of the circular groove, the The end surface of the rotating shaft is provided with a rotating hole matching the bottom end of the driving shaft, and after the bottom end of the driving shaft is placed in the rotating hole, the second gear meshes with the external gear.

Further, the second drive assembly further includes a drive frame mounted on the top end of the drive shaft.

Further, the adjustable wire wheel brush also includes:

A limit rod arranged below the connecting rod, the limit rod and the connecting rod are parallel to each other, the side surface of the limit rod facing the connecting rod is provided with a first straight rack, and the lower surface of the pull block is provided with the first straight rack. A second spur rack that matches the spur rack;

A lifting component used to make the limit rod move up and down.

Further, the lift assembly includes:

A third slider arranged on the side surface of the limit rod, the third slider is slidably connected with a third slide groove arranged on the side wall of the surface groove;

a third electromagnet arranged in the third slider;

The second spring is arranged in the third chute, one end of the second spring is fixed on the bottom of the third chute, and the other end of the second spring is fixed on the lower surface of the third slider.

The present invention also provides a method for using an adjustable wire wheel brush. Using the above-mentioned adjustable wire wheel brush, when performing derusting operations on section steel, the adjustable wire wheel brush is first installed on a hand-held driving device Then, the driving part drives the two pull blocks in one of the grinding areas to approach each other. During the process of the two pull blocks approaching each other, through the hinge rod, the supporting plate in the grinding area moves away from the side surface of the shaft at the same time. After moving for a certain distance, the driving part stops driving; start the hand-held driving device to drive the rotating shaft to rotate, so that the grinding steel wire on the supporting plate that is not adjusted by the driving part performs derusting operation on the upper surface of the section steel, and at the same time passes through the driven The side surface of the section steel is derusted by the grinding steel wire on the supporting plate adjusted at the top.

Beneficial effect of the present invention: adopt a kind of adjustable steel wire wheel brush of the present invention and using method thereof, when carrying out derusting operation to section steel, for example is to carry out derusting operation to I-beam, and at this moment there are two grinding areas First, at this time, first install the adjustable wire wheel brush on the hand-held driving device, and then drive the two pull blocks in one of the grinding areas to approach each other through the drive part. rod, so that the supporting plate in the grinding area moves a certain distance away from the side surface of the rotating shaft at the same time. After the completion, the driving part stops driving, and the supporting plate in the other grinding area remains still; then start the hand-held driving device to drive The rotating shaft rotates, so that the grinding steel wire on the supporting plate not adjusted by the driving part performs derusting operation on the upper surface of one of the wing plates of the I-beam, and at the same time, the side surface of the grinding steel wire on the supporting plate adjusted by the driving part One of the side surfaces of the wing plate is derusted, so through the present invention, when the wire wheel brush derusts the profiled steel, multiple surfaces of the profiled steel can be derusted at the same time, improving work efficiency.

Description of drawings

In order to more clearly illustrate the present invention or the technical solutions in the prior art, the accompanying drawings that need to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings in the following description are only the present invention. Invention, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative work.

Fig. 1 is the front view one of the embodiment of the present invention;

Fig. 2 is the front view two of the embodiment of the present invention;

Fig. 3 is a side sectional view of an embodiment of the present invention;

Fig. 4 is a side sectional view of the rotating shaft in the embodiment of the present invention;

Fig. 5 is a side view of the rotating shaft in the embodiment of the present invention;

Fig. 6 is a partial enlarged view 1 of the surface groove in the embodiment of the present invention;

Fig. 7 is the enlarged view of place A in Fig. 6;

Fig. 8 is the enlarged view of place B in Fig. 6;

Fig. 9 is a schematic diagram of the connection between the rotating block and the rotating rod in the embodiment of the present invention;

Fig. 10 is a side view of the turning rod in the embodiment of the present invention;

Fig. 11 is a partial enlarged view 2 of the surface groove in the embodiment of the present invention.

Labeled in the figure:

1. Revolving shaft; 2. Support plate; 3. Grinding steel wire; 4. Ring groove; 5. Ring cylinder; 6. Surface groove; 7. Articulating rod; 8. The first chute; 10. Inner shaft; 11. Connecting rod; 12. First spring; 13. Pull cord; 14. Pull block; 15. Perforation; 16. Second chute; 17. First electromagnet; 18. Second slider ; 19, the second electromagnet; 20, the guide groove; 21, the push rod; 22, the rotating rod; 23, the winding wheel; 24, the first gear; 25, the side ring groove; 28, the third slide block; 29, the third chute; 30, the second spring; 31, the third electromagnet; 32, the second gear; 33, the drive shaft; 34, the drive frame.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific examples.

It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by those skilled in the art to which the present invention belongs. "First", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Comprising" or "comprising" and similar words mean that the elements or items appearing before the word include the elements or items listed after the word and their equivalents, without excluding other elements or items. Words such as "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "Down", "Left", "Right" and so on are only used to indicate the relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

In the first aspect of the present invention, an adjustable wire wheel brush and its use method are proposed, as shown in Figure 1, Figure 2, Figure 3, Figure 4, Figure 5, and Figure 6, including a rotating shaft 1, the adjustable Conditioning wire wheel brushes also include:

At least two grinding areas arranged on the side surface of the rotating shaft 1, the two grinding areas are arranged in parallel, and the grinding areas include a plurality of supporting plates 2 and grinding steel wires 3 arranged on the outer surface of the supporting plates 2;

The first chute 8 arranged on the inner surface of the supporting plate 2, the two first sliders 9 arranged in the first chute 8, the first slider 9 is slidably connected with the first chute 8;

The hinge rod 7 whose top end is hinged to the lower surface of the first slider 9, the side surface of the rotating shaft 1 facing the supporting plate 2 is provided with a surface groove 6, and a part of the hinge rod 7 extends into the surface groove 6 , and two hinged rods 7 whose parts are located in the surface groove 6 intersect each other;

An inner shaft 10 disposed at a position where the two hinged rods 7 intersect each other, the inner shaft 10 is rotatably connected to the shaft hole provided on the side surface of the hinged rod 7;

The pull block 14 whose upper surface is hinged with the bottom end of the hinge rod 7, the pull block 14 is provided with perforations 15 running through its two sides;

The connecting rod 11 located in the surface groove 6, the end of the connecting rod 11 is fixed on the side wall of the surface groove 6, and the connecting rod 11 is slidably connected with the through hole 15;

The driving part is used to drive the two pull blocks 14 on the connecting rod 11 to approach or move away from each other.

In this embodiment, when carrying out the rust removal operation on the section steel, for example, the I-beam is carried out to the rust removal operation, and there are two grinding areas at this time, at this time, firstly, the adjustable wire wheel brush is installed on the hand-held On the driving device, the two pull blocks 14 in one of the grinding areas are then driven close to each other by the drive part, and during the process of the two pull blocks 14 approaching each other, the supporting plate 2 in the grinding area is simultaneously moved toward the Move a certain distance away from the side surface of the rotating shaft 1. After the completion, the driving part stops driving, and the supporting plate 2 in the other grinding area remains still; then start the hand-held driving device to drive the rotating shaft 1 to rotate, so that it is not adjusted by the driving part The grinding steel wire 3 on the supporting plate 2 performs derusting operation on the upper surface of one of the wing plates of the I-beam, and at the same time passes the side surface of the grinding steel wire 3 on the supporting plate 2 adjusted by the driving part to the side of the wing plate. One of the side surfaces is derusted, so by the present invention, when the wire wheel brush is derusting the profiled steel, at the same time, multiple surfaces of the profiled steel can be derusted, which improves the work efficiency. Here, in order to further improve Work efficiency, before derusting, choose the model of the wire wheel brush, so that the width of the supporting plate 2 in one of the grinding areas is equal to the width of the I-beam wing plate here, so that the derusting can be done more quickly The upper surface of the wing plate is derusted, and one of the side surfaces of the wing plate can also be derusted during the derusting process.

As an implementation, as shown in Figure 3, the supporting plates 2 are circular arc plates. In the same grinding area, when the driving part makes the end surfaces of adjacent supporting plates 2 contact each other, multiple supporting plates 2 forms a complete circular ring. At this time, the central axis of the circular ring coincides with the central axis of the rotating shaft 1, so that the stability of grinding can be ensured during grinding.

Here, preferably, as shown in FIG. 1 and FIG. 2 , there are three grinding areas, and the width of the pallet 2 in the grinding area in the middle is greater than that in the grinding areas on both sides.

In the present embodiment, still taking the I-beam as an example, when the wing plate of the I-beam is polished, the specification of the selected wire wheel brush is the width of the supporting plate 2 and the width of the wing plate in the grinding area in the middle. Equal, the width of the supporting plate 2 in the grinding area between plus the width of the supporting plate 2 in the two outer grinding areas is equal to the width of the web of the I-beam, here, in the two outer grinding areas, The width of the supporting plate 2 is equal. When grinding, the height of the supporting plate 2 in the grinding area on both sides is first adjusted by the driving part, so that the supporting plate 2 in the two grinding areas is far away from the rotating shaft 1, and then in the manner as shown in Figure 2 , to polish the wing plate, so that the upper surface and both sides of the wing plate can be derusted at one time, which greatly improves the derusting efficiency. When the upper surface and both sides of the two wing plates are derusted Finally, the steel wire wheel brush is adjusted, and the supporting plates 2 in the two grinding areas on the outside are all restored to their original positions through the driving part, so that the grinding steel wires 3 in the three grinding areas form a grinding cylinder ring, When grinding the plate, the outer surface of the cylindrical ring is polished to grind the side of the web, and the upper and lower surfaces of the cylindrical ring are polished to grind the opposite surface of the wing plate, thereby further improving the grinding efficiency.

As an implementation, as shown in Fig. 4, Fig. 6, Fig. 7, Fig. 8, and Fig. 10, the drive unit includes:

The first spring 12 sleeved on the connecting rod 11, the first spring 12 is located between the two pull blocks 14, and the end of the first spring 12 is fixed to the side of the corresponding pull block 14;

An annular groove 4 provided on one end surface of the rotating shaft 1 and an annular cylinder 5 sleeved in the annular groove 4, the inner hole of the annular cylinder 5 is rotatably connected with the inner side wall of the annular groove 4, so that The bottom of the surface groove 6 communicates with the annular groove 4;

The rotating rod 22 corresponding to the pull block 14, the front and rear side walls of the surface groove 6 are provided with guide grooves 20, and the end of the rotating rod 22 is slidably connected with the corresponding guide groove 20;

The winding wheel 23 that is installed in rotating rod 22, one end is fixed on the stay rope 13 in the winding groove of described winding wheel 23, and the other end of described stay rope 13 is fixed on the side of corresponding pull block 14;

A first drive assembly for driving the rotating rod 22 to slide along the guide groove 20;

A second drive assembly for driving the circular cylinder 5 to rotate;

The first gear 24 installed on the rotating rod 22, the outer surface of the annular cylinder 5 is provided with an external gear, the first gear 24 is matched with the external gear, after the first gear 24 meshes with the external gear, When the second drive assembly drives the inner cylinder to rotate, the two winding wheels 23 wind up the pull cord 13 or release the pull cord 13 at the same time.

In this embodiment, when it is necessary to adjust the supporting plate 2 in a certain grinding area, the first drive assembly in the other grinding area is first activated, so that the rotating rod 22 drives the gear to move away from the ring cylinder 5, and finally makes the The first gear 24 breaks away from the external gear. After the completion, it is necessary to adjust the action of the first drive assembly in the grinding area of the supporting plate 2, so that the rotating rod 22 drives the gear to move in a direction close to the ring cylinder 5, so that the first gear 24 and After the meshing of the external gears is completed, the second drive assembly acts to drive the ring cylinder 5 to rotate, thereby driving the first gear 24 to rotate. When the first gear 24 rotates, the rewinding wheel 23 is driven by the rotating rod 22 to rewind the pull cord 13 , so that the pull block 14 overcomes the elastic force of the first spring 12 and approaches each other, and drives the supporting plate 2 away from the rotating shaft 1 through the hinge rod 7; Under the action of the elastic force of the spring 12 , they are separated from each other, so that the supporting plate 2 is close to the rotating shaft 1 .

As an implementation, as shown in Figure 6, Figure 8, and Figure 9, the first drive assembly includes:

The second chute 16 located on one side of the guide groove 20, the second slider 18 slidably connected with the second chute 16, the second electromagnet 19 fixed in the second slider 18 and fixed on The first electromagnet 17 at the top of the second chute 16, the first electromagnet 17 is facing the second electromagnet 19;

The side ring groove 25 that is located at the side surface of the rotating rod 22, the rotating block 26 that is rotatably connected with the side ring groove 25, the push rod 21 that is hinged at the side of the second slide block 18 at one end, the other end of the push rod 21 and the The side of turning block 26 is hinged.

In this embodiment, when the first electromagnet 17 and the second electromagnet 19 are energized to generate mutual attraction force, the second slider 18 can be moved in the direction of the first electromagnet 17. 21, that is, pull the rotating rod 22 away from the ring cylinder 5, and finally make the first gear 24 break away from the external gear, and when the first electromagnet 17 and the second electromagnet 19 are energized to generate mutually repulsive force, the second electromagnet can be made The slider 18 moves away from the first electromagnet 17. At this time, the push rod 21 can push the rotating rod 22 close to the ring cylinder 5, and finally the first gear 24 is meshed with the external gear. Here, the rotating block is set The purpose of 26 is for not affecting push rod 21 when rotating rod 22 rotates.

As an implementation, as shown in Figure 4, the second drive assembly includes a drive shaft 33 and a second gear 32 mounted on the drive shaft 33, the second gear 32 is matched with the external gear, the The ring cylinder 5 extends to the outside of the ring groove 4, and the end surface of the rotating shaft 1 is provided with a rotating hole matching the bottom end of the driving shaft 33. After the bottom end of the driving shaft 33 is placed in the rotating hole, the second The second gear 32 meshes with the external gear.

Here, when the drive shaft 33 is driven to rotate by an external force, the ring cylinder 5 can be driven to rotate, and the drive shaft 33 can be removed after the adjustment is completed.

For the convenience of driving, as shown in FIG. 4 , the second driving assembly further includes a driving frame 34 mounted on the top of the driving shaft 33 .

As an implementation, as shown in Figure 11, the adjustable wire wheel brush also includes:

The stop rod 27 located below the connecting rod 11, the stop rod 27 is parallel to the connecting rod 11, the stop rod 27 is provided with a first straight rack toward the side surface of the connecting rod 11, the pull block 14 The lower surface is provided with a second straight rack matched with the first straight rack;

A lifting assembly used to make the limit rod 27 move up and down.

In this embodiment, after the adjustment of the pallet 2 is completed, the first straight rack and the second straight rack are engaged through the lifting assembly, so that the centrifugal force generated during the grinding process will not change the position of the pull block 14 , and then the position of the pallet 2 will not be changed. When the position of the pallet 2 needs to be adjusted, it is necessary to separate the first spur rack from the second spur rack through the lifting assembly.

As an implementation, as shown in Figure 11, the lifting assembly includes:

The third sliding block 28 located on the side surface of the limit rod 27, the third sliding block 28 is slidably connected with the third slide groove 29 located on the side wall of the surface groove 6;

The third electromagnet 31 located in the third slider 28;

The second spring 30 located in the third chute 29, one end of the second spring 30 is fixed on the bottom of the third chute 29, and the other end of the second spring 30 is fixed on the bottom of the third slider 28. surface.

In this embodiment, when the third electromagnet 31 is de-energized, under the elastic force of the second spring 30, the limit rod 27 is pushed upwards, and finally the first straight rack and the second straight rack are meshed. , when the third electromagnet 31 is energized, the third electromagnet 31 will generate an attractive force to the bottom of the surface groove 6, so that the stop rod 27 moves downward against the elastic force of the second spring 30, and finally makes the first The spur rack and the second spur rack are separated.

Those of ordinary skill in the art should understand that: the discussion of any of the above embodiments is exemplary only, and is not intended to imply that the scope of the present invention (including claims) is limited to these examples; under the idea of the present invention, the above embodiments or Combinations between technical features in different embodiments are also possible, steps may be carried out in any order, and there are many other variations of the different aspects of the invention as described above, which are not presented in detail for the sake of brevity.

The present invention is intended to embrace all such alternatives, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent replacements, improvements, etc. within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. The utility model provides an adjustable wire wheel brush, includes pivot (1), its characterized in that, adjustable wire wheel brush still includes:

the polishing device comprises at least two polishing areas arranged on the side surface of a rotating shaft (1), wherein the two polishing areas are arranged in parallel and comprise a plurality of supporting plates (2) and polishing steel wires (3) arranged on the outer side surfaces of the supporting plates (2);

the sliding device comprises a first sliding chute (8) arranged on the inner side surface of the supporting plate (2) and two first sliding blocks (9) arranged in the first sliding chute (8), wherein the first sliding blocks (9) are connected with the first sliding chute (8) in a sliding manner;

the top end of the hinged rod (7) is hinged with the lower surface of the first sliding block (9), a surface groove (6) is formed in the side surface of the rotating shaft (1) opposite to the supporting plate (2), one part of the hinged rod (7) extends into the surface groove (6), and the two hinged rods (7) with parts located in the surface groove (6) are mutually crossed;

the inner shaft (10) is arranged at the position where the two hinge rods (7) are crossed with each other, and the inner shaft (10) is rotatably connected with a shaft hole arranged on the side surface of each hinge rod (7);

the upper surface of the pull block (14) is hinged with the bottom end of the hinge rod (7), and the pull block (14) is provided with a through hole (15) penetrating through two side surfaces of the pull block;

the connecting rod (11) is positioned in the surface groove (6), the end part of the connecting rod (11) is fixed on the side wall of the surface groove (6), and the connecting rod (11) is in sliding connection with the through hole (15);

a driving part for driving the two pulling blocks (14) on the connecting rod (11) to approach or depart from each other.

2. An adjustable wire wheel brush according to claim 1, wherein the supporting plates (2) are circular arc plates, and when the driving part makes the end surfaces of the adjacent supporting plates (2) contact each other in the same grinding area, a plurality of supporting plates (2) form a complete circular ring, and the central axis of the circular ring is coincident with the central axis of the rotating shaft (1).

3. An adjustable wire wheel brush according to claim 2, wherein there are three sanding areas, the width of the carrier plate (2) in the sanding area in the middle position being greater than the width of the carrier plate (2) in the sanding area in the two side positions.

4. An adjustable wire wheel brush according to any one of claims 1 to 3, wherein said drive section comprises:

the first spring (12) is sleeved on the connecting rod (11), the first spring (12) is positioned between the two pull blocks (14), and the end part of the first spring (12) is fixed on the side surface of the corresponding pull block (14);

the rotating shaft comprises an annular groove (4) arranged on one end face of the rotating shaft (1) and an annular cylinder (5) sleeved in the annular groove (4), an inner hole of the annular cylinder (5) is rotatably connected with the inner side wall of the annular groove (4), and the bottom of a surface groove (6) is communicated with the annular groove (4);

the rotating rod (22) corresponds to the pulling block (14), the front side wall and the rear side wall of the surface groove (6) are provided with guide grooves (20), and the end part of the rotating rod (22) is in sliding connection with the corresponding guide grooves (20);

the winding device comprises a winding wheel (23) arranged on a rotating rod (22) and a pull rope (13) with one end fixed in a winding groove of the winding wheel (23), wherein the other end of the pull rope (13) is fixed on the side surface of a corresponding pull block (14);

a first driving component for driving the rotating rod (22) to slide along the guide groove (20);

the second driving component is used for driving the circular cylinder (5) to rotate;

the first gear (24) is mounted on the rotating rod (22), an external gear is arranged on the outer side face of the circular cylinder (5), the first gear (24) is matched with the external gear, and after the first gear (24) is meshed with the external gear, when the second driving assembly drives the inner cylinder to rotate, the two winding wheels (23) simultaneously wind the pull rope (13) or simultaneously release the pull rope (13).

5. An adjustable wire wheel brush according to claim 4, wherein said first drive assembly comprises:

the second sliding chute (16) is arranged on one side of the guide groove (20), the second sliding block (18) is connected with the second sliding chute (16) in a sliding mode, the second electromagnet (19) fixed in the second sliding block (18) and the first electromagnet (17) fixed to the top of the second sliding chute (16), and the first electromagnet (17) is opposite to the second electromagnet (19);

locate side annular groove (25) of bull stick (22) side surface, with turning block (26) that side annular groove (25) rotate to be connected, one end and second slider (18) side articulated push rod (21), the other end of push rod (21) is articulated with the side of turning block (26).

6. An adjustable wire wheel brush according to claim 5, wherein the second driving assembly comprises a driving shaft (33) and a second gear (32) installed on the driving shaft (33), the second gear (32) is matched with the external gear, the circular cylinder (5) extends to the outside of the circular groove (4), the end face of the rotating shaft (1) is provided with a rotating hole matched with the bottom end of the driving shaft (33), and the second gear (32) is meshed with the external gear after the bottom end of the driving shaft (33) is placed in the rotating hole.

7. An adjustable wire wheel brush according to claim 6, wherein said second drive assembly further comprises a drive frame (34) mounted on top of a drive shaft (33).

8. An adjustable wire wheel brush according to claim 5, further comprising:

the limiting rod (27) is arranged below the connecting rod (11), the limiting rod (27) is parallel to the connecting rod (11), a first straight rack is arranged on the side surface, facing the connecting rod (11), of the limiting rod (27), and a second straight rack matched with the first straight rack is arranged on the lower surface of the pull block (14);

a lifting component used for enabling the limiting rod (27) to do lifting motion.

9. An adjustable wire wheel brush according to claim 8, wherein said lifting assembly comprises:

the third sliding block (28) is arranged on the side surface of the limiting rod (27), and the third sliding block (28) is in sliding connection with a third sliding groove (29) formed in the side wall of the surface groove (6);

a third electromagnet (31) arranged in the third slide block (28);

and the second spring (30) is arranged in the third sliding groove (29), one end of the second spring (30) is fixed at the bottom of the third sliding groove (29), and the other end of the second spring (30) is fixed at the lower surface of the third sliding block (28).

10. An adjustable wire wheel brush using method, characterized in that, when the adjustable wire wheel brush of claim 1 is used for derusting the section steel, the adjustable wire wheel brush is firstly installed on a handheld driving device, then two pulling blocks (14) in one grinding area are driven to mutually approach through a driving part, in the process that the two pulling blocks (14) approach to each other, a support plate (2) in the grinding area simultaneously moves a distance in the direction far away from the side surface of a rotating shaft (1) through a hinged rod (7), and after the driving part stops driving; the handheld driving device is started, the rotating shaft (1) is driven to rotate, the upper surface of the section steel is subjected to rust removal operation through the polishing steel wire (3) on the supporting plate (2) which is not adjusted by the driving portion, and meanwhile rust removal operation is performed on the side surface of the section steel through the polishing steel wire (3) on the supporting plate (2) which is adjusted by the driving portion.

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