CN215093279U - Support bearing roller replacing device - Google Patents

Abstract

The utility model discloses a support bearing roller more changes device, the piece that lifts the lifing arm, make the lifing arm upwards rotate, the lifing arm drives the lifting hook upward movement, make the lifting hook will treat the support roller of changing and mention, promote the support roller to breaking away from erection support to the lifting hook, make the skew erection support of support roller who treats the change, remove the lifting force of lifting piece to the lifing arm, the support roller that will treat the change takes off from the lifting hook, place new support roller on the lifting hook, the piece that lifts the lifing arm once more, rise to the top of erection support to the lifting hook, rotate the lifting hook, make new support roller fall in the draw-in groove of erection support, accomplish the change of support roller. The supporting carrier roller disclosed by the scheme does not need to be dismounted from the rack, the jacking force of the jackscrew on the bearing seat of the driven roller cannot be influenced, the process of repeatedly debugging the abandoned iron belt is omitted, and the problem of low use efficiency of the belt type iron remover caused by replacement of the supporting carrier roller is solved.

Description

Support bearing roller replacing device

Technical Field

The utility model relates to a belt de-ironing separator technical field, in particular to support bearing roller and change device.

Background

The iron remover is a device capable of generating strong magnetic field attraction, is used for removing ferromagnetic impurities mixed in materials, effectively prevents the ferromagnetic impurities from scratching a conveying belt, and obviously improves the grade of the materials.

The belt type iron remover is one kind of iron remover, and the belt type iron remover includes electromagnet, frame, driving mechanism, driven cylinder, driving cylinder, iron belt, support roller, cooling fan, etc. The supporting roller is easy to damage in the using process, and the damaged supporting roller needs to be replaced. The jackscrew structure at the front end of the bearing seat of the driven roller can be abutted against the bearing seat of the driven roller so as to adjust the looseness of the abandoned iron belt. When the supporting roller is replaced, the jackscrew structure at the front end of the bearing seat of the driven roller needs to be unscrewed firstly, the looseness of the abandoned iron belt is increased, then the mounting support of the supporting roller to be replaced is detached, the damaged supporting roller is taken down from the mounting support, then a new supporting roller is mounted on the mounting support, the mounting support is connected with the frame, and finally the jackscrew is adjusted to ensure that the looseness of the abandoned iron belt is less than or equal to 70 mm.

After the supporting roller is changed according to the change step of above-mentioned supporting roller, there is the inconsistent problem of holding force of jackscrew to the bearing frame at driven cylinder both ends, lead to abandoning the indisputable belt and taking place the off tracking easily when moving, need debug the jackscrew of bearing frame front end many times repeatedly, so that the jackscrew is unanimous to the holding force of the bearing frame at driven cylinder both ends, abandon indisputable belt and could steady operation, when debugging jackscrew is to the holding force of bearing frame, the belt de-ironing separator need be shut down, the availability factor of belt de-ironing separator has been influenced.

Therefore, how to solve the problem of low use efficiency of the belt-type iron remover caused by replacement of the supporting carrier rollers becomes a technical problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a support bearing roller and change device to solve and cause the problem that belt de-ironing separator availability factor is low because change support bearing roller.

In order to achieve the above object, the utility model provides a following technical scheme:

a support carrier roller changing apparatus comprising:

the support frame is connected with the frame of the belt type iron remover;

one end of the lifting arm is hinged with the supporting frame, the other end of the lifting arm is connected with the rack through a lifting piece, and the lifting piece is used for enabling the lifting arm to rotate up and down in the lateral direction;

the lifting hook is used for lifting the supporting carrier roller to be replaced of the belt type iron remover, one end of the lifting hook is close to the lifting arm, one end of the lifting piece is hinged to the other end of the lifting hook, and the number of the lifting hooks is two.

Preferably, in the above supporting idler replacing apparatus, the supporting frame includes:

the number of the rear supporting columns is two, and the lower ends of the two rear supporting columns are respectively connected with the two sides of the rack;

the number of the front support columns is two, the lower ends of the two front support columns are respectively connected with two sides of the electromagnet shell of the belt type iron remover, and the upper ends of the two front support columns are hinged with the lifting arm;

u type support, two side levers of U type support respectively with two the middle part of preceding supporting column is connected, the horizon bar and two of U type support the upper end of back supporting column is connected, the horizon bar with it is articulated to lift, back supporting column with lift is located respectively the upper and lower both sides of horizon bar.

Preferably, in the support roller replacing device, the lifting arm is a U-shaped lifting arm, the opening direction of the U-shaped lifting arm is the same as that of the U-shaped bracket, a side arm of the U-shaped lifting arm is hinged to the upper end of the front support column, a horizontal arm of the U-shaped lifting arm is hinged to the lifting member, and two ends of the horizontal arm in the length extending direction are hinged to the lifting hook respectively.

Preferably, in the above supporting roller replacing device, a connecting arm perpendicular to the horizontal arm is provided on the horizontal arm, one end of the connecting arm is connected to the horizontal arm, and the other end of the connecting arm is hinged to the lifting member.

Preferably, in the support roller replacing device, two opposite sides of the side lever are provided with an L-shaped guide plate, one end of the L-shaped guide plate is connected with the horizontal rod, the other end of the L-shaped guide plate is connected with the side lever, and the L-shaped guide plate and the U-shaped bracket form a rectangular guide hole for guiding the lifting hook.

Preferably, in the support roller replacing device, an adjusting bolt is disposed at one end of the L-shaped guide plate parallel to the horizontal rod, a bolt hole matched with the adjusting bolt is formed in the L-shaped guide plate, and the adjusting bolt can abut against the lifting hook.

Preferably, in the support roller replacing device, a first L-shaped connecting plate is arranged at the lower end of the rear support column, a first horizontal plate of the first L-shaped connecting plate can be attached to the upper surface of the frame, a first vertical plate of the first L-shaped connecting plate is connected to the side surface of the frame through a first bolt, a first rubber layer is arranged on one side of the first horizontal plate attached to the frame, and a first pressing plate is arranged on one side of the first bolt connected to the frame.

Preferably, in the above-mentioned support roller replacing device, the upper end of back supporting column be provided with back supporting column vertically hinge ear, hinge ear's length extending direction with the length extending direction of the horizontal pole of U type support is the same, be provided with on the horizontal pole of U type support with hinge ear complex connecting plate, back supporting column with U type support passes through hinge ear with the connecting plate is articulated.

Preferably, in the support roller replacing device, a second L-shaped connecting plate is arranged at the lower end of the front support column, a second horizontal plate of the second L-shaped connecting plate can be attached to the upper surface of the electromagnet housing, a second vertical plate of the second L-shaped connecting plate is connected to the side surface of the electromagnet housing through a second bolt, a second rubber layer is arranged on one side of the second horizontal plate attached to the rack, and a second pressing plate is arranged on one side of the second bolt connected to the electromagnet housing.

Preferably, in the supporting roller replacing device, a groove for mounting the lifting member is formed on the horizontal rod of the U-shaped bracket, a hinge groove communicated with the groove is formed on the horizontal rod, a hinge shaft on the lifting member is located in the hinge groove,

the hinge device is characterized by further comprising a pressing plate, wherein the pressing plate is located at a notch of the hinge groove, is connected with the horizontal rod and is used for pressing the hinge shaft in the hinge groove.

It can be seen from the above technical solutions that, when the supporting roller replacing device provided by the present invention works, the lifting member lifts the lifting arm to make the lifting arm rotate upward, the lifting arm drives the lifting hook to move upward, so that the lifting hook lifts the supporting roller to be replaced, until the lifting hook lifts the supporting roller to be removed from the mounting seat and above the mounting seat, because the lifting hook is hinged to the lifting arm, after the supporting roller to be replaced is removed from the mounting seat, the lifting hook will rotate downward around the hinged position of the lifting hook and the lifting arm under the action of gravity, so that the supporting roller to be replaced deviates from the mounting seat, the lifting force of the lifting member on the lifting arm is removed, the supporting roller to be replaced is taken off from the lifting hook, a new supporting roller is placed on the lifting hook, the lifting member lifts the lifting arm again, and the lifting hook rises to the top of the mounting seat, and rotating the lifting hook to enable the new supporting carrier roller to fall into the clamping groove of the mounting support, relieving the lifting force of the lifting piece on the lifting arm, and enabling the new supporting carrier roller to fall to a working position under the action of gravity and the tension of the abandoned iron belt to complete the replacement of the supporting carrier roller. The supporting carrier roller disclosed by the scheme does not need to be dismounted from the rack, so that the jacking force of the jackscrew on the bearing seat of the driven roller cannot be influenced, the looseness of the abandoned iron belt cannot be influenced, the process of repeatedly debugging the abandoned iron belt is omitted, and the problem of low use efficiency of the belt type iron remover caused by replacement of the supporting carrier roller is solved.

Drawings

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

Fig. 1 is a schematic structural view of a support roller replacing device installed on a belt-type iron remover according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a supporting roller replacing device according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a front support pillar according to an embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3;

FIG. 5 is a partial enlarged view of B in FIG. 3;

FIG. 6 is an enlarged view of a portion C of FIG. 3;

fig. 7 is a schematic structural diagram of a rear support pillar according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a U-shaped bracket according to an embodiment of the present invention;

FIG. 9 is an enlarged view of a portion D of FIG. 8;

FIG. 10 is an enlarged view of a portion E of FIG. 9;

fig. 11 is a schematic structural view of a lifting member according to an embodiment of the present invention;

fig. 12 is a schematic structural view of a lift arm according to an embodiment of the present invention;

fig. 13 is a schematic structural view of a lifting hook provided in the embodiment of the present invention.

Wherein the content of the first and second substances,

1. rear support column, 2, preceding support column, 21, second L type connecting plate, 22, second bolt, 24, U type ears, 3, U type support, 31, recess, 32, clamp plate, 33, spacing arch, 4, lifting arm, 5, lifting hook, 6, linking arm, 7, L type deflector, 8, adjusting bolt, 9, lifting element.

Detailed Description

The utility model discloses a support bearing roller and change device to solve because change the support bearing roller and cause the problem that belt de-ironing separator availability factor is low.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-13.

The utility model discloses a support bearing roller and change device, including support frame, lifting arm 4 and lifting hook 5.

The support frame is connected with the frame of the belt type iron remover;

the lifting arm 4 is installed on the support frame, and the one end of lifting arm 4 is articulated with the support frame, and the other end of lifting arm 4 passes through lifting member 9 and is connected with the frame, and is concrete, and lifting member 9's one end is articulated with the frame, and lifting member 9's the other end is articulated with lifting arm 4, and lifting member 9 is used for making lifting arm 4 rotate about the one end articulated with the support frame in the side direction.

The lifting hook 5 is used for lifting a supporting roller of the belt type iron remover to be replaced. One end of the lifting hook 5 is hinged with one end of the lifting arm 4 close to the lifting piece 9, the other end of the lifting hook 5 is provided with a hook body, and a supporting carrier roller to be replaced is placed in the hook body. In order to guarantee the stability that lifting hook 5 promoted to the supporting roller, lifting hook 5's number was two in this scheme, and two lifting hooks 5 can cooperate the both ends of the axis direction of supporting roller. Preferably, the distance between the two lifting hooks 5 is 80-120mm larger than the width of the abandoned iron belt.

When the supporting carrier roller replacing device disclosed by the scheme works, the lifting piece 9 lifts the lifting arm 4 to enable the lifting arm 4 to rotate upwards, the lifting arm 4 drives the lifting hook 5 to move upwards to enable the lifting hook 5 to lift the supporting carrier roller to be replaced, the supporting carrier roller to be replaced is lifted to be separated from the mounting support and is positioned above the mounting support by the lifting hook 5, because the lifting hook 5 is hinged with the lifting arm 4, after the supporting carrier roller to be replaced is separated from the mounting support, the lifting hook 5 can rotate downwards around the hinged position of the lifting hook 5 and the lifting arm 4 under the action of gravity to enable the supporting carrier roller to be replaced to deviate from the mounting support, the lifting force of the lifting piece 9 on the lifting arm 4 is released, the supporting carrier roller to be replaced is taken down from the lifting hook 5, a new supporting carrier roller is placed on the lifting hook 5, the lifting piece 9 lifts the lifting arm 4 again until the lifting hook 5 rises to the mounting support, and rotating the lifting hook 5 to enable the new supporting carrier roller to fall into the clamping groove of the mounting support, relieving the lifting force of the lifting piece 9 on the lifting arm 4, and enabling the new supporting carrier roller to fall to a working position under the action of gravity and the tension of the abandoned iron belt to complete the replacement of the supporting carrier roller. The supporting carrier roller disclosed by the scheme does not need to be dismounted from the rack, so that the jacking force of the jackscrew on the bearing seat of the driven roller cannot be influenced, the looseness of the abandoned iron belt cannot be influenced, the process of repeatedly debugging the abandoned iron belt is omitted, and the problem of low use efficiency of the belt type iron remover caused by replacement of the supporting carrier roller is solved.

Preferably, the height of the supporting frame is at least 2 times of the distance between the axis of the supporting roller and the frame, and the distance can be changed correspondingly according to different types of belt type dust collectors.

In a particular embodiment of the solution, the support frame comprises a rear support column 1, a front support column 2 and a U-shaped bracket 3.

The number of the rear supporting columns 1 is two, the lower ends of the two rear supporting columns 1 are respectively connected with two sides of the rack, and preferably, the distance between the rear supporting columns 1 is determined according to the rack interval of the belt-type iron remover;

the number of the front supporting columns 2 is two, and the lower ends of the two front supporting columns 2 are respectively connected with the two sides of the rack or the two sides of the electromagnet shell of the belt type iron remover. The upper ends of the two front support columns 2 are hinged to a lifting arm 4.

The distance between the front supporting column 2 and the rear supporting column 1 is 3-5 times of the diameter of the supporting carrier roller.

The number of U type support 3 is one, the plane at U type support 3 place is perpendicular with preceding support column 2, the opening direction of U type support 3 is towards the space between two preceding support column 2, U type support 3 includes two side levers and a horizontal bar, the first end of two side levers is connected with the middle part of two preceding support column 2 respectively, the second end of two side levers is connected with the both ends of horizontal bar respectively, the horizontal bar is articulated with lifting member 9, as shown in fig. 1 and 2, back support column 1 and lifting member 9 are located the upper and lower both sides of horizontal bar respectively. Here, the upper and lower sides of the horizontal rod are the upper and lower sides of the horizontal rod in the vertical direction.

In one embodiment of the present disclosure, the lifting arm 4 is a U-shaped lifting arm, the opening direction of the U-shaped lifting arm is the same as that of the U-shaped bracket 3, and the U-shaped lifting arm is parallel to the U-shaped bracket 3 when the lifting member 9 does not lift the lifting arm 4. The side wall of the U-shaped lifting arm is hinged with the upper end of the front support column 2, the horizontal arm of the U-shaped lifting arm is hinged with the lifting piece 9, and the U-shaped lifting arm rotates in an arc shape in the vertical plane. As shown in fig. 1 and 2, both ends of the horizontal arm of the U-shaped lift arm in the length extending direction are hinged to the lift hook 5, respectively.

As shown in fig. 3 and 4, the upper end of the front support column 2 is provided with a U-shaped double lug 24, and two hinge lugs of the U-shaped double lug 24 are provided with pin shaft mounting holes. The lateral wall card of U type lift arm is in U type ears 24, and the lateral wall of U type lift arm rotates from top to bottom in U type ears 24.

The middle part of preceding support column 2 is offered the recess that is used for installing the side lever of U type support 3, and the recess can also play limiting displacement to the side lever. As shown in fig. 3, 5 and 9, the groove is a rectangular groove, and is matched with the shape of the side bars, the bottom of the groove is provided with four limiting protrusions 33, the center of the bottom of the groove is provided with a bolt hole, and correspondingly, the side bars of the U-shaped bracket are provided with a limiting groove 34 matched with the limiting protrusions 33 and bolt holes corresponding to the bolt hole positions at the bottom of the groove. After the side lever of the U-shaped bracket 3 is matched with the groove of the front support column 2, the limiting protrusion 33 is inserted into the limiting groove 34 of the side lever to realize the preliminary positioning and connection of the U-shaped bracket 3 and the front support column 2, and then the bolt is sequentially inserted into the bolt holes of the U-shaped bracket 3 and the front support column 2 to realize the fixed connection of the U-shaped bracket 3 and the front support column 2. This kind of design can avoid U type support 3 to take place the slope relatively the back support column in the use.

As shown in fig. 1 and 2, the size of the U-shaped bracket 3 is larger than that of the U-shaped lifting arm, and the connection of the U-shaped lifting arm with the lifting piece 9 on the U-shaped bracket 3 is realized through the connecting arm 6. Specifically, the connecting arm 6 is perpendicular to the horizontal wall and opposite to the opening direction of the U-shaped lifting arm, one end of the connecting arm 6 is connected with the horizontal arm, and the other end of the connecting arm 6 is hinged to the lifting piece 9. After the connecting arm 6 is added to the U-shaped lifting arm, when the lifting piece 9 does not lift the U-shaped lifting arm, the size of the U-shaped lifting arm + the connecting arm 6 is equal to that of the U-shaped bracket 3. The dimensions herein refer to the dimensions of the U-shaped lifting arm and the U-shaped supporting frame in the direction of the opening of the U-shaped lifting arm or the U-shaped supporting frame.

In order to avoid that the lifting hook 5 moves in a direction perpendicular to the side bars, the present solution is provided with an L-shaped guide plate 7 on the side opposite the two side plates. One end and the side lever of L type deflector 7 are connected, and the other end and the horizon bar of L type deflector 7 are connected, and L type deflector 7 forms the rectangle guiding hole with the side lever of U type support 3 and the horizon bar cooperation of U type support 3 for play the guide effect to the motion of lifting hook 5.

The connection between the L-shaped guide plate 7 and the U-shaped bracket 3 can be welded connection or integrated molding.

As shown in fig. 1, 2 and 8, an adjusting bolt 8 is arranged at one end of the L-shaped guide plate 7 parallel to the horizontal plate, a bolt hole matched with the adjusting bolt 8 is formed in the L-shaped guide plate 7, and the adjusting bolt 8 can abut against the lifting hook 5.

When the lifting piece 9 lifts the lifting arm 4, the lifting hook 5 cannot rotate around a hinge point of the lifting hook 5 and the lifting arm 4 under the jacking action of the adjusting bolt 8, after the lifting piece 9 lifts the supporting carrier roller to the position above the mounting support, the adjusting bolt 8 is rotated, so that the supporting carrier roller can rotate downwards under the action of gravity and the tension of a discarded iron belt, the supporting carrier roller deviates from the position above the mounting support, the lifting force is released by the lifting piece 9, the supporting carrier roller descends along with the lifting hook 5, the discarded iron belt does not apply tension to the supporting carrier roller, and the supporting carrier roller to be replaced is replaced; and a new support roller is placed in the lifting hook 5; lifting piece 9 lifts lifting arm 4 once more, lifting hook 5 promotes the support roller, highly being higher than erection support to support roller, rotatory adjusting bolt 8 this moment, adjusting bolt 8 is pushing up lifting hook 5 and is rotating, it is directly over support roller is located erection support's draw-in groove, lifting piece 9 drives lifting arm 4 and slowly descends, make support roller under the effect of gravity and the tensioning force of abandoning the iron belt, impress support roller in erection support's draw-in groove, support roller changes and accomplishes.

As shown in fig. 6, the lower extreme of back support column 1 is provided with first L type connecting plate, the first horizontal plate of first L type connecting plate can laminate with the upper surface of frame, first vertical board of first L type connecting plate passes through first bolted connection with the side of frame, one side that first bolt and frame are connected is provided with first pressure strip, be connected of back support column 1 and frame promptly not through bolted connection, but through the bolt-up, need not trompil in the frame this moment, that is to say, need not reform transform the frame.

As shown in fig. 6, a second L-shaped connecting plate 21 is disposed at the lower end of the front support column 2, a second horizontal plate of the second L-shaped connecting plate 21 can be attached to the upper surface of the electromagnet housing, a second vertical plate of the second L-shaped connecting plate 21 is connected to the side surface of the electromagnet housing through a second bolt 22, and a second pressing plate 23 is disposed on the side of the second bolt 22 connected to the electromagnet housing, that is, the front support column 2 is not connected to the electromagnet housing through a bolt, but is pressed through a bolt, and at this time, a hole does not need to be formed in the electromagnet housing, that is, the electromagnet housing does not need to be modified.

This scheme is provided with in the upper end of back support column 1 with back support column 1 vertically hinge lug, and the length extending direction of hinge lug is the same with the length extending direction of the horizontal pole of U type support 3, be provided with on the horizontal pole of U type support 3 with hinge lug complex connecting plate, back support column 1 is articulated with U type support 3 through hinge lug and connecting plate. As shown in fig. 7, the hinge hole of the hinge lug is arranged at one end far away from the rear support column 1, the rear support column 1 can rotate around the hinge point, when the hinge lug is not used, the rear support column 1 can be folded, when the hinge lug is used, the hinge lug can be abutted against the U-shaped support 3, and the rotation opposite to the folding direction of the rear support column 1 is avoided. As shown in fig. 7, the ends of the hinge ears are rounded.

As shown in fig. 6, the first pressing plate and the second pressing plate 23 are of a bowl-shaped structure, so that the contact area between the first pressing plate and the second pressing plate 23 and between the rack and the electromagnet housing can be increased, the pressing stability is improved, and the rack and the electromagnet housing are not damaged.

This scheme can be provided with first rubber pad with one side of the upper surface laminating of frame at first horizontal plate, and the second horizontal plate can be provided with the second rubber pad with one side of the upper surface laminating of electromagnet housing, and first rubber pad and second rubber pad play the guard action to frame and electromagnet housing respectively, reduce the damage that causes frame and electromagnet housing in the connection.

As shown in figures 8 and 10, the scheme is that a groove 31 for installing the lifting piece 9 is arranged on a horizontal rod of the U-shaped bracket 3, a hinge groove communicated with the groove 31 is arranged on the horizontal rod, a hinge shaft on the lifting piece 9 is positioned in the hinge groove,

and the pressing plate 32 is positioned at the notch of the hinge groove, is connected with the horizontal rod and is used for pressing the hinge shaft in the hinge groove.

The piece 9 that lifts that this scheme used is the jack, and the lift power and the lifting height homoenergetic of jack all can satisfy the work needs. The base of the lifting piece 9 is provided with a hinged shaft which is positioned in the hinged groove, the base of the lifting piece 9 is embedded into the groove 31, and the lifting piece 9 rotates in the hinged groove through the hinged shaft.

The groove 31 on the horizontal bar serves to prevent the jack from tipping or slipping off during use.

The base and the piston rod of the lifting piece 9 are respectively provided with a pin shaft, so that the effect of fixing the lifting piece 9 can be achieved in the using process, the lifting piece 9 can be ensured to be always in the best working state, and the human body and equipment injury caused by the slippage of the lifting piece 9 can be prevented.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A supporting carrier roller replacing device is characterized by comprising:

the support frame is connected with the frame of the belt type iron remover;

the lifting arm (4), one end of the lifting arm (4) is hinged with the supporting frame, the other end of the lifting arm (4) is connected with the rack through a lifting piece (9), and the lifting piece (9) is used for enabling the lifting arm (4) to rotate up and down in the side direction;

the lifting hook (5) is used for lifting the supporting carrier roller to be replaced of the belt-type iron remover, one end of the lifting hook (5) is close to the lifting arm (4), one end of the lifting piece (9) is hinged, the other end of the lifting hook (5) is provided with a hook body, and the number of the lifting hooks (5) is two.

2. The support carrier roller changing device of claim 1, wherein the support frame comprises:

the number of the rear supporting columns (1) is two, and the lower ends of the two rear supporting columns (1) are respectively connected with the two sides of the rack;

the number of the front support columns (2) is two, the lower ends of the two front support columns (2) are respectively connected with two sides of the electromagnet shell of the belt type iron remover, and the upper ends of the two front support columns (2) are hinged with the lifting arm (4);

u type support (3), two side levers of U type support (3) are respectively with two the middle part of preceding support column (2) is connected, the horizon bar and two of U type support (3) the upper end of back support column (1) is connected, the horizon bar with it is articulated to lift piece (9), back support column (1) with it is located respectively to lift piece (9) the upper and lower both sides of horizon bar.

3. The device for replacing support carrier rollers according to claim 2, characterized in that the lifting arm (4) is a U-shaped lifting arm, the opening direction of the U-shaped lifting arm is the same as that of the U-shaped bracket (3), the side arm of the U-shaped lifting arm is hinged with the upper end of the front support column (2), the horizontal arm of the U-shaped lifting arm is hinged with the lifting piece (9), and the two ends of the horizontal arm in the length extension direction are respectively hinged with the lifting hook (5).

4. A supporting roller changing device according to claim 3, characterized in that a connecting arm (6) perpendicular to the horizontal arm is arranged on the horizontal arm, one end of the connecting arm (6) is connected with the horizontal arm, and the other end of the connecting arm (6) is hinged with the lifting piece (9).

5. A supporting carrier roller changing device according to claim 2, characterized in that the opposite side of each of the two side bars is provided with an L-shaped guide plate (7), one end of the L-shaped guide plate (7) is connected with the horizontal bar, the other end of the L-shaped guide plate (7) is connected with the side bar, and the L-shaped guide plate (7) and the U-shaped bracket (3) form a rectangular guide hole for guiding the lifting hook (5).

6. The supporting carrier roller replacing device according to claim 5, wherein an adjusting bolt (8) is arranged at one end of the L-shaped guide plate (7) parallel to the horizontal rod, a bolt hole matched with the adjusting bolt (8) is formed in the L-shaped guide plate (7), and the adjusting bolt (8) can abut against the lifting hook (5).

7. The supporting carrier roller replacing device as claimed in claim 2, wherein a first L-shaped connecting plate is arranged at the lower end of the rear supporting column (1), a first horizontal plate of the first L-shaped connecting plate can be attached to the upper surface of the rack, a first vertical plate of the first L-shaped connecting plate is connected with the side surface of the rack through a first bolt, a first rubber layer is arranged on one side of the first horizontal plate attached to the rack, and a first pressing plate is arranged on one side of the first bolt connected to the rack.

8. The supporting carrier roller replacing device according to claim 2, characterized in that the upper end of the rear supporting column (1) is provided with a hinge lug perpendicular to the rear supporting column (1), the length extension direction of the hinge lug is the same as the length extension direction of the horizontal rod of the U-shaped bracket (3), the horizontal rod of the U-shaped bracket (3) is provided with a connecting plate matched with the hinge lug, and the rear supporting column (1) and the U-shaped bracket (3) are hinged with the connecting plate through the hinge lug.

9. The support carrier roller replacing device as recited in claim 2, characterized in that a second L-shaped connecting plate (21) is arranged at the lower end of the front support column (2), a second horizontal plate of the second L-shaped connecting plate (21) can be attached to the upper surface of the electromagnet housing, a second vertical plate of the second L-shaped connecting plate (21) is connected with the side surface of the electromagnet housing through a second bolt (22), a second rubber layer is arranged at the side of the second horizontal plate attached to the frame, and a second pressing plate (23) is arranged at the side of the second bolt (22) connected to the electromagnet housing.

10. The supporting carrier roller replacing device as claimed in claim 2, wherein the horizontal bar of the U-shaped bracket (3) is provided with a groove (31) for mounting the lifting member (9), the horizontal bar is provided with a hinge groove communicated with the groove (31), a hinge shaft on the lifting member (9) is positioned in the hinge groove,

the hinge device is characterized by further comprising a pressing plate (32), wherein the pressing plate (32) is located at a notch of the hinge groove, is connected with the horizontal rod and is used for pressing the hinge shaft in the hinge groove.

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