Rotary mechanical descaling device

Abstract

The invention discloses a rotary type mechanical descaling device which comprises a first roller, a second roller, a main motor, a bracket and an end scraping plate. The first roller and the second roller are rotatably arranged in parallel in a spaced mode. The main motor is in transmission connection with the first roller and / or the second roller and used for driving the first roller and / or the second roller to rotate. The main motor is installed on the outer side of the machine frame and is in transmission connection with the first roller and / or the second roller through a chain transmission or belt transmission mechanism. The bracket is arranged between the first roller and the second roller in a liftable mode, and the longitudinal direction of the bracket is parallel to the axis of the first roller and the axis of the second roller. The bracket is used for lifting a target bar, when the bracket descends to a set position, the target bar is in rolling contact with the first roller and the second roller and is separated from the bracket, and the first roller and / or the second roller are / is used for enabling the target bar to rotate around the axis of the target bar; when the bracket ascends to a set position, the target bar is separated from the roller I and the roller II; the end scraping plates are arranged at the two longitudinal ends of the bracket and can move close to or away from the bracket.

Description

Technical Field

[0001] The present application relates to the technical field of oxide scale cleaning machinery, and in particular to a rotary mechanical descaling device. Background Art

[0002] In metal forging, metal bars are typically heated to a set forging temperature for plastic forming. However, this high temperature creates oxide scale on the bar's surface, which must be removed before entering the die to ensure forging quality. Small bars and ordinary carbon steels are typically treated with brushing or high-pressure water jet descaling equipment. However, for specialty materials such as stainless steel, which contains elements like chromium and nickel, and high-temperature alloys containing cobalt, titanium, and nickel, titanium alloys form an oxide layer that bonds firmly to the substrate, making it difficult to remove the surface oxide scale using brushing or high-pressure water jet descaling. These materials are typically removed by upsetting, but upsetting is difficult for bars with diameters exceeding 200 mm and lengths exceeding 1000 mm, and can easily cause the bar to bend and become scrapped. Therefore, a solution to this problem is necessary. Summary of the Invention

[0003] The purpose of this application is to provide a rotary mechanical descaling device to solve the problems in the prior art.

[0004] To achieve the above objectives, the present application provides the following technical solution: a rotary mechanical descaling device, comprising: Roller 1 and roller 2 2 are parallel and spaced apart and can be rotated to set; A main motor 8 is connected to the roller 1 and / or the roller 2 2 for driving the roller 1 and / or the roller 2 2 to rotate; The bracket 3 is movably disposed between the roller 1 and the roller 2, and the longitudinal direction of the bracket 3 is parallel to the axes of the roller 1 and the roller 2; the bracket 3 is used to lift the target bar material, and when the bracket 3 is lowered to the set position, the target bar material rolls in contact with the roller 1 and the roller 2 and is separated from the bracket 3, and the roller 1 and / or the roller 2 are used to rotate the target bar material around its own axis; when the bracket 3 is raised to the set position, the target bar material is separated from the roller 1 and the roller 2; The end scrapers 4 are respectively provided at both longitudinal ends of the bracket 3 and can move closer to or away from the bracket 3 .

[0005] Furthermore, the rotary mechanical descaling device also includes: The protective covers 5 are provided in pairs on the roller 1 and the roller 2 2 . The protective covers 5 can be moved away from or closed to expose or close the roller 1 and the roller 2 2 .

[0006] Furthermore, the rotary mechanical descaling device also includes: The nozzles 6 are arranged on the protective cover 5 in a uniform distribution along the longitudinal direction of the bracket 3 and are used to spray water mist into the protective cover 5 .

[0007] Furthermore, the rotary mechanical descaling device also includes: A material collecting bottom shell 9 is provided below the roller 1 and the roller 2, and is in the shape of a funnel with a large opening facing the roller 1 and the roller 2, and is used to collect the oxide scale peeled off from the target bar by the roller 1 and the roller 2; A waste pipe 17 is provided at the bottom of the aggregate bottom shell 9 and is in communication with the aggregate bottom shell 9; The screw 18 is provided in the waste pipe 17 and is used to discharge the oxide scale in the aggregate bottom shell 9 from the port of the waste pipe 17; The waste discharge motor 12 is provided at one end of the waste discharge pipe 17 and is in driving connection with the screw 18 .

[0008] Furthermore, a spiral protrusion 101 is provided on the outer circumference of the roller 1, and a plurality of straight grooves 201 are evenly distributed on the outer circumference of the roller 2 2. The straight grooves 201 are longitudinally parallel to the axis of the roller 2 2.

[0009] Furthermore, the rotary mechanical descaling device also includes: Rotary joints 24 are respectively provided at both ends of the roller 1 and the roller 2; The water pump 7 is connected to the rotary joint 24 and the nozzle 6 at the corresponding end through pipelines, and is used to supply water in the water tank 11 to the roller 1 1 and the roller 2 2 and the nozzle 6.

[0010] Furthermore, a plurality of through slots 301 are formed on the bracket 3 , and the upper end of the bracket 3 is in an arc shape.

[0011] Furthermore, the rotary mechanical descaling device also includes a frame 10, and the roller 1 and the roller 2 2 are both rotatably supported by the frame 10; guide rails 13 are provided at both ends of the frame 10, and sliding frames 14 are respectively provided at both ends of the protective cover 5 and are slidably connected to the corresponding guide rails 13, and the guide rails 13 are horizontally arranged and perpendicular to the axis of the roller 1; the cover opening cylinder 15 is hinged to the frame 10 and the output end is connected to the sliding frame 14, which is used to drive the protective cover 5 to open and close.

[0012] Furthermore, the rotary mechanical descaling device also includes: An end cylinder 16 is mounted on the frame 10 and has an output end connected to the end scrapers 4, for driving the end scrapers 4 to move away from or toward the target bar, and for causing the end scrapers 4 to strike the end surface of the target bar at a set frequency; the two end scrapers 4 have teeth on opposite sides thereof; The guide plate 19 is provided above the aggregate bottom shell 9 and connected to the frame 10 at both ends. The bottom of the end scraper 4 is connected to a slide plate 20 , and both ends of the slide plate 20 are in sliding cooperation with the guide plate 19 .

[0013] Furthermore, the rotary mechanical descaling device also includes a lifting rod 21, which slides vertically through the aggregate bottom shell 9, with the upper end connected to the bottom of the bracket 3 and the lower end connected to the linear drive power source, for driving the bracket 3 to move up and down; a sealing seat 23 is provided on the aggregate bottom shell 9; the two ends of the sealing sleeve 22 are respectively sealed and connected to the sealing seat 23 and the bracket 3 and seal the lifting rod 21 inside.

[0014] The beneficial effects of the present application: The present application provides a rotary mechanical descaling device, which provides a parallel and rotatable roller 1 and roller 2. After the target bar is placed thereon, the main motor drives roller 1 and / or roller 2 to rotate, so that the target bar also produces a rotational motion around its own axis. Since roller 1 is provided with a spiral protrusion, when it contacts the surface of the target bar, it not only drives the target bar to rotate, but also causes the oxide scale on its surface to be crushed by the spiral protrusion due to the effect of its own weight. At the same time, the two ends of the target bar cannot move axially due to the obstruction of the end scraper. Therefore, the spiral protrusion also produces an axial sliding stripping force on the oxide scale on the surface of the target bar, further loosening and falling off the oxide scale. The straight grooves evenly distributed on roller 2, on the one hand, increase its contact with the surface of the target bar. The friction force further peels off the oxide scale that has not fallen off after the roller one is loosened. On the other hand, since the position of the straight groove actually forms a fracture on the outer cylindrical surface of the roller two, the position of the straight groove also causes the target bar to jump in the radial direction, thereby causing the target bar to collide with the surfaces of rollers one and two (the frequency and amplitude of the collision are determined by the rotation speed of rollers one and two and the width and depth of the straight groove), further loosening the oxide scale that has not fallen off and finally clearing it away under the above-mentioned synergistic effect; at the same time, due to the action of the end scraper, the oxide scale at both ends of the target bar is also cleared away, which has the advantages of good cleaning effect and fast speed; spraying is carried out through the set nozzle, so that the oxide scale dust is sprayed, gathered and sunk in the aggregate bottom shell, effectively protecting the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an overall schematic diagram of the rotary mechanical descaling device of the present application; Figure 2 A partial schematic diagram of the rotary mechanical descaling device of the present application; Figure 3 This is a front view of the rotary mechanical descaling device of the present application; Figure 4 for Figure 3 Middle AA section view; Figure 5 for Figure 4 Middle BB cross-section view.

[0016] In the figure: 1. Roller 1; 101. Spiral protrusion; 2. Roller 2; 201. Straight groove; 3. Bracket; 301. Through groove; 4. End scraper; 5. Protective cover; 6. Nozzle; 7. Water pump; 8. Main motor; 9. Aggregate bottom shell; 10. Frame; 11. Water tank; 12. Waste discharge motor; 13. Guide rail; 14. Sliding frame; 15. Cover opening cylinder; 16. End cylinder; 17. Waste discharge pipe; 18. Screw; 19. Guide plate; 20. Slide plate; 21. Lifting rod; 22. Sealing sleeve; 23. Sealing seat; 24. Rotary joint. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0018] See also Figures 1 to 5 A rotary mechanical descaling device includes a roller 1, a roller 2, a main motor 8, a bracket 3, and an end scraper 4, wherein: The parallel spacing between rollers 1 and 2 can be rotatably arranged, and the size of the spacing can be specifically designed according to the diameter of the target bar material, which is not specifically limited here; the main motor 8 is connected to roller 1 and / or roller 2 2 for driving roller 1 and / or roller 2 2 to rotate; the main motor 8 is installed on the outside of the frame 10 and is connected to roller 1 and / or roller 2 2 through a transmission mechanism of chain drive or belt drive; when the main motor 8 is only connected to one of roller 1 or roller 2 2, the other roller 1 or roller 2 2 is a passive roller, that is, roller 1 or roller 2 2 as the active roller drives roller 1 or roller 2 2 as the passive roller to rotate through the action of the target bar material, and the oxide scale is cleaned in this process; when the main motor 8 is connected to both roller 1 and roller 2 2, both rollers rotate actively; The bracket 3 can be raised and lowered and is arranged between roller 1 and roller 2, and the longitudinal direction of the bracket 3 is parallel to the axis of roller 1 and roller 2; the bracket 3 is used to lift the target bar material, and when the bracket 3 descends to the set position, the target bar material rolls in contact with roller 1 and roller 2 and separates from the bracket 3, and roller 1 and / or roller 2 are used to make the target bar material rotate around its own axis; when the bracket 3 rises to the set position, the target bar material separates from roller 1 and roller 2; the end scrapers 4 are arranged at both longitudinal ends of the bracket 3, and can move closer to or away from the bracket 3.

[0019] In another embodiment of this application, please refer to Figures 1 to 5 A spiral protrusion 101 is provided on the outer circumference of roller 1, and a plurality of straight grooves 201 are evenly distributed on the outer circumference of roller 2. The longitudinal direction of the straight groove 201 is parallel to the axis of roller 2. In this embodiment, the width of the straight groove is 6mm-8mm, the depth is 8mm-9mm, and the cross section of the straight groove is trapezoidal.

[0020] According to the above structure provided in this embodiment, by setting parallel and rotatable rollers 1 and 2, after the target bar is placed thereon, the main motor 8 drives roller 1 and / or roller 2 to rotate, so that the target bar also produces a rotational motion around its own axis. Since the spiral protrusion 101 is provided on roller 1, when it contacts the surface of the target bar, it not only drives the target bar to rotate, but also the surface oxide scale of the target bar is crushed by the spiral protrusion 101 due to the effect of its own weight. At the same time, the two ends of the target bar cannot move axially due to the obstruction of the end scraper 4. It can be understood that due to the length error of the target bar, it is allowed to move axially a certain distance within the process permission range. Therefore, the spiral protrusion 101 also The oxide scale on the surface of the target bar material generates an axial sliding peeling force, which further loosens and falls off the oxide scale; and the straight grooves 201 evenly distributed on the roller 2, on the one hand, increase the friction between it and the surface of the target bar material to further peel off the oxide scale that has not yet detached after the roller 1 is loosened; on the other hand, since the position of the straight grooves 201 actually forms a fracture on the outer cylindrical surface of the roller 2, the position of the straight grooves 201 also causes the target bar material to jump in the radial direction, thereby causing the target bar material to collide with the surfaces of rollers 1 and 2 (the frequency and amplitude of the collision are determined by the rotation speed of rollers 1 and 2 and the width and depth of the straight grooves 201), further loosening the oxide scale that has not fallen off and finally removing it under the above-mentioned synergistic effect.

[0021] In another embodiment of this application, please refer to Figures 1 to 5The rotary mechanical descaling device also includes a protective cover 5, which is arranged in pairs on roller 1 and roller 2. The protective covers 5 can be moved away from each other or closed to expose or close roller 1 and roller 2. When the two protective covers 5 are closed, roller 1 and roller 2 and the target bar are all sealed inside to prevent the oxide scale from flying out of the working area, ensuring safety and environmental protection; when the two protective covers 5 are moved away from each other and opened, it is convenient to take and place the target bar.

[0022] In another embodiment of this application, please refer to Figures 1 to 5 The rotary mechanical descaling device also includes a nozzle 6, wherein the nozzle 6 has a plurality of nozzles 6 uniformly distributed along the longitudinal direction of the bracket 3 on the protective cover 5, which are used to spray water mist into the protective cover 5; in this way, during the process of cleaning the oxide scale, the spray is performed through the set nozzles, so that the oxide scale dust is sprayed, gathered and sunk in the aggregate bottom shell 9, effectively protecting the working environment.

[0023] In another embodiment of this application, please refer to Figures 1 to 5 The rotary mechanical descaling device also includes a bottom shell 9, a waste pipe 17, a screw 18, and a waste motor 12, wherein: The aggregate bottom shell 9 is arranged below roller 1 and roller 2 2, and is in the shape of a funnel with a large mouth facing roller 1 and roller 2 2, and is used to gather the oxide scale peeled off from the target rod material by roller 1 and roller 2 2; a waste discharge pipe 17 is arranged at the bottom of the aggregate bottom shell 9 and is connected to the aggregate bottom shell 9; a screw 18 is arranged in the waste discharge pipe 17, and is used to discharge the oxide scale in the aggregate bottom shell 9 from the port of the waste discharge pipe 17; a waste discharge motor 12 is arranged at one end of the waste discharge pipe 17 and is connected to the screw 18 for transmission; in this way, the waste discharge motor 12 drives the screw 18 to rotate and discharge the oxide scale deposited at the bottom of the aggregate bottom shell 9 to the outside in time, so that the rotary mechanical descaling device can continue to work; it can be understood that a holding box or a filtering device can be set at the outlet of the waste discharge pipe 17 to collect the oxide scale and at the same time reuse the water therein into the water tank 11 to reduce water consumption.

[0024] In another embodiment of this application, please refer to Figures 1 to 5 The rotary mechanical descaling device further includes a rotary joint 24 and a water pump 7, wherein: The rotary joints 24 are respectively provided at both ends of the roller 1 and the roller 2. It can be understood that the roller 1 and the roller 2 are provided with a water passage for passing water, or the roller 1 and the roller 2 are hollow roller structures. The rotary joints 24 installed at both ends are rotary water joints. The rotary joint 24 at one end is used for water inlet, and the rotary joint 24 at the other end is used for water outlet. The water pump 7 is connected to the rotary joint 24 and the nozzle 6 at the corresponding end through a pipeline, and is used to supply water in the water tank 11 to the roller 1 and the roller 2 and the nozzle 6. In this way, the water pump 7 supplies water from the water tank 11 to the roller 1 and the roller 2 as well as the nozzle 6 through the rotary joint 24 at one end. The water in the tank is supplied to roller 1 and roller 2 2 to cool them. The rotary joint 24 at the other end leads the water out and then returns it to the water tank 11, thereby avoiding heat damage to the bearings at both ends, so that the rotary mechanical descaling device can operate stably for a long time. At the same time, a common cooling device can be set on the water tank 11 or the water pipeline to force cooling of the return water; the water is pumped to the nozzle 6 for atomization and spraying, which on the one hand cools the inside of the protective cover 5, and on the other hand has the effect of gathering oxide dust, accelerating its sinking to the bottom of the aggregate bottom shell 9, and avoiding dust pollution of the working environment.

[0025] In another embodiment of this application, please refer to Figures 1 to 5 A number of through grooves 301 are formed on the bracket 3, and the upper end of the bracket 3 is arc-shaped; in this way, the arc-shaped structure has good stability when placing the target bar to avoid rolling, and the through grooves 301 are conducive to the falling of the peeled oxide scale to avoid accumulation in the bracket 3, so as to ensure the normal function of the bracket 3 and have a good heat dissipation effect.

[0026] In another embodiment of this application, please refer to Figures 1 to 5 The rotary mechanical descaling device also includes a frame 10. Roller 1 and roller 2 are both rotatably supported by the frame 10. It can be understood that bearing seats and matching bearings are installed on the frame 10 to support the two ends of roller 1 and roller 2, respectively, to ensure that both can rotate smoothly; guide rails 13 are provided at both ends of the frame 10, and sliding frames 14 are provided at both ends of the protective cover 5 to slide in connection with the corresponding guide rails 13. The guide rails 13 are arranged horizontally and perpendicular to the axis of roller 1; the cover opening cylinder 15 is hinged to the frame 10 and the output end is connected to the sliding frame 14, which is used to drive the protective cover 5 to open and close. In this way, the protective cover 5 can be ensured to open and close smoothly. It can be understood that through the above arrangement, the rotary mechanical descaling device can have a stable main structure, ensure the stable operation of each component, and improve the reliability of the entire machine.

[0027] In another embodiment of this application, please refer to Figures 1 to 5 The rotary mechanical descaling device further comprises an end cylinder 16 and a guide plate 19, wherein: The end cylinder 16 is installed on the frame 10 and the output end is connected to the end scraper 4, which is used to drive the end scrapers 4 to move away from or approach the target bar, and to make the end scrapers 4 hit the end face of the target bar at a set frequency; the two end scrapers 4 have a tooth shape on the opposite side; the guide plate 19 is arranged above the aggregate bottom shell 9 and is connected to the frame 10 at both ends, and the bottom of the end scraper 4 is connected to a slide plate 20, and the two ends of the slide plate 20 are slidably matched with the guide plate 19; according to the above structure provided in this embodiment, on the one hand, the end cylinder 16 can push the end scraper 4 to make the target bar have a stable axial position, and on the other hand, it can make the end scraper 4 hit the end face of the target bar at a set frequency, so that at the moment the end scraper 4 leaves the end of the target bar, it can While effectively reducing the rotational resistance of the target bar, the oxide scales at both ends of the target bar are also cleaned due to the impact of the end scraper, which has the advantages of good cleaning effect and fast speed. Based on the same principle, at the moment when the end scraper 4 contacts the end face of the target bar, the rotational resistance of the target bar increases for a moment, so that the peeling force of roller 1 and roller 2 on the oxide scale on the outer cylindrical surface of the target bar will also increase instantly, making it easier to clean the oxide scale. The tooth shape setting further enhances the effect of crushing the oxide scale and improving the cleaning effect; the sliding cooperation between the two ends of the slide plate 20 and the guide plate 19 provides the end scraper 4 with stronger anti-rollover stability, ensuring that the position of the end scraper 4 is stable and will not rotate with the target bar.

[0028] In another embodiment of this application, please refer to Figures 1 to 5 The rotary mechanical descaling device also includes a lifting rod 21. In this embodiment, the lifting rod 21 slides vertically through the aggregate bottom shell 9, the upper end is connected to the bottom of the bracket 3, and the lower end is connected to the linear drive power source for driving the bracket 3 to move up and down; a sealing seat 23 is provided on the aggregate bottom shell 9; the two ends of the sealing sleeve 22 are respectively sealed and connected to the sealing seat 23 and the bracket 3 and seal the lifting rod 21 inside; it can be understood that the linear drive power source can be a cylinder, a screw nut or a linear drive module and other existing technologies. According to the above structure provided in this embodiment, the lifting and lowering of the bracket 3 can be conveniently controlled. At the same time, through the action of the sealing seat 23 and the sealing sleeve 22, dust impurities such as oxide scale are prevented from entering the sliding fit pair of the lifting rod 21, ensuring the smooth lifting of the lifting rod 21, and also preventing the leakage of oxide scale and sewage.

[0029] It should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0030] In the description of this application, it should be understood that the terms "up", "down", "left", "right", "top", "bottom", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0031] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0032] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A rotary mechanical descaling device, characterized in that: include: Roller 1 (1) and roller 2 (2) are rotatably arranged with a parallel spacing; A main motor (8) is connected to the roller one (1) and / or the roller two (2) in a transmission manner and is used to drive the roller one (1) and / or the roller two (2) to rotate; The bracket (3) is liftable and arranged between the roller one (1) and the roller two (2), and the longitudinal direction of the bracket (3) is parallel to the axis of the roller one (1) and the roller two (2); the bracket (3) is used to lift the target bar material, and when the bracket (3) is lowered to the set position, the target bar material rolls with the roller one (1) and the roller two (2) and is separated from the bracket (3), and the roller one (1) and / or the roller two (2) are used to make the target bar material rotate around its own axis; when the bracket (3) is raised to the set position, the target bar material is separated from the roller one (1) and the roller two (2); The end scrapers (4) are respectively arranged at the longitudinal ends of the bracket (3) and can move closer to or farther away from the bracket (3).

2. The rotary mechanical descaling device according to claim 1, characterized in that: Also includes: The protective covers (5) are provided in pairs on the roller one (1) and the roller two (2). The protective covers (5) can be moved away from or closed to expose or seal the roller one (1) and the roller two (2).

3. The rotary mechanical descaling device according to claim 2, characterized in that: Also includes: The nozzles (6) have a plurality of nozzles evenly distributed along the longitudinal direction of the bracket (3) on the protective cover (5) and are used to spray water mist into the protective cover (5).

4. The rotary mechanical descaling device according to claim 3, characterized in that: Also includes: A material collecting bottom shell (9) is provided below the roller one (1) and the roller two (2), and is in the shape of a funnel with a large opening facing the roller one (1) and the roller two (2), and is used to collect the oxide scale peeled off from the target bar material by the roller one (1) and the roller two (2); A waste discharge pipe (17) is provided at the bottom of the aggregate bottom shell (9) and is in communication with the aggregate bottom shell (9); a screw (18) disposed in the waste discharge pipe (17) and used to discharge the oxide scale in the aggregate bottom shell (9) from the port of the waste discharge pipe (17); The waste discharge motor (12) is provided at one end of the waste discharge pipe (17) and is drivingly connected to the screw (18).

5. The rotary mechanical descaling device according to claim 1, characterized in that: The outer circumference of the roller one (1) is provided with a spiral protrusion (101), and the outer circumference of the roller two (2) is provided with a plurality of straight grooves (201) evenly distributed, and the longitudinal direction of the straight grooves (201) is parallel to the axis of the roller two (2).

6. The rotary mechanical descaling device according to claim 3, characterized in that: Also includes: Rotary joints (24) are respectively provided at both ends of the first roller (1) and the second roller (2); A water pump (7) is connected to the rotary joint (24) and the nozzle (6) at the corresponding ends through pipelines, and is used to supply water in the water tank (11) to the roller one (1), the roller two (2) and the nozzle (6).

7. The rotary mechanical descaling device according to claim 1, characterized in that: A plurality of through slots (301) are formed on the bracket (3), and the upper end of the bracket (3) is in an arc shape.

8. The rotary mechanical descaling device according to claim 4, characterized in that: The utility model further comprises a frame (10), wherein the roller 1 (1) and the roller 2 (2) are both rotatably supported by the frame (10); guide rails (13) are provided at both ends of the frame (10), and sliding frames (14) are provided at both ends of the protective cover (5) for sliding connection with the corresponding guide rails (13), wherein the guide rails (13) are arranged horizontally and perpendicular to the axis of the roller 1 (1); a cover opening cylinder (15) is hinged to the frame (10) and an output end is connected to the sliding frame (14), and is used for driving the protective cover (5) to open and close.

9. The rotary mechanical descaling device according to claim 8, characterized in that: Also includes: An end cylinder (16) is mounted on the frame (10) and has an output end connected to the end scraper (4), and is used to drive the end scrapers (4) to move away from or approach the target bar, and to make the end scrapers (4) strike the end surface of the target bar at a set frequency; the two end scrapers (4) have teeth on opposite sides; A guide plate (19) is provided above the aggregate bottom shell (9) and connected to the frame (10) at both ends. A slide plate (20) is connected to the bottom of the end scraper (4), and both ends of the slide plate (20) are in sliding engagement with the guide plate (19).

10. The rotary mechanical descaling device according to claim 4, characterized in that: Also includes: A lifting rod (21) vertically slides through the aggregate bottom shell (9), with its upper end connected to the bottom of the bracket (3) and its lower end connected to a linear drive power source, for driving the bracket (3) to move up and down; a sealing seat (23) is provided on the aggregate bottom shell (9); and two ends of a sealing sleeve (22) are respectively sealedly connected to the sealing seat (23) and the bracket (3) and seal the lifting rod (21) therein.

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