A device for removing the oxide skin on the inner wall and both sides of a high-temperature thin ring cast steel blank

Abstract

The utility model discloses a device of removing high temperature thin ring steel billet inner hole wall and both sides surface oxide skin, including platform structure, the platform structure upper portion is provided with the movable trolley structure, the movable trolley structure is equipped with the steel billet hydraulic pressure clamping structure outward, movable trolley structure both ends are provided with the main cleaning structure, vice cleaning structure corresponding with steel billet hydraulic pressure clamping structure respectively, this device adopts the combination design of main / vice double cleaning structure installation in same sliding platform, can polish the inner hole wall and both sides surface oxide skin of high temperature ring thin centrifugal steel billet through the positive direction, reverse movement of sliding platform, has improved production efficiency greatly, has reduced processing time and manpower cost.

Description

Technical Field

[0001] This utility model relates to the field of surface processing technology for ring castings, specifically to a device for removing oxide scale from the inner wall and both sides of a high-temperature thin-walled ring-cast steel billet. Background Technology

[0002] In the steel casting industry, during the forming process of thin centrifugal ring castings, the outer mold needs to be sprayed with water for cooling. Gaps form between the casting and the mold due to shrinkage, causing oxidation of the casting with oxygen in the air. This results in an oxide layer with an embedded coating forming on the surface of the casting. The inner holes of centrifugal ring castings are particularly affected, as they are directly exposed to air during centrifugal forming, leading to simultaneous slag inclusions and oxidation, resulting in a thicker oxide layer compared to other areas. Furthermore, since continuous casting of thin centrifugal ring castings often employs a horizontal centrifugal process, molten iron inevitably adheres to the outer wall of the mold during casting. Under centrifugal force, this creates varying degrees of mesh-like burrs on both sides of the casting.

[0003] If the oxide scale and burrs on the inner and outer surfaces of thin centrifugal ring castings are not removed in time before hot forging, they will seriously affect the quality of the forging billet. To fully utilize the residual heat of the centrifugal casting for hot forging, oxide scale and burr removal must be performed when the casting temperature is between 500 and 750°C; otherwise, the residual heat cannot be utilized, and energy-saving effects cannot be achieved. However, traditional processes such as abrasive (paper) wheel grinding and machine tool turning suffer from excessively high casting temperatures. Ordinary grinding tools and cutting tools are prone to accelerated wear, reduced strength and toughness in high-temperature environments, affecting grinding results and the service life of tools or grinding wheels. Even with conventional wire wheel grinding devices, the long contact time with the casting and high workpiece temperature lead to severe wear of the wire wheel, requiring frequent wire replacement and further impacting production efficiency.

[0004] Furthermore, existing oxide scale removal processes and equipment often only target a single surface for grinding, such as grinding only the inner wall or only the side surface. They cannot grind the oxide scale on the inner wall and both sides of the high-temperature ring-shaped casting billet in one go, which leads to low processing efficiency, requires multiple clamping and adjustment of the workpiece position, and increases processing time and cost.

[0005] Grinding centrifugal ring castings at high temperatures presents unique technical challenges. Most existing grinding devices lack specific designs for high-temperature thin-walled centrifugal steel ring castings, making it difficult to meet the requirement of removing oxide scale from the inner hole wall and both sides in one go. Utility Model Content

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a device for removing oxide scale from the inner wall and double sides of a high-temperature thin ring-cast steel billet, comprising a platform structure, a mobile trolley structure on the upper part of the platform structure, a billet hydraulic clamping structure on the outside of the mobile trolley structure, and a main cleaning structure and a secondary cleaning structure corresponding to the billet hydraulic clamping structure respectively at both ends of the mobile trolley structure. The mobile trolley structure includes a linear slide rail, which is arranged along the length of the platform structure. A sliding platform is slidably connected to the linear slide rail, and both ends of the sliding platform are connected to a transmission component via a transmission chain, so that the sliding platform can move back and forth on the linear slide rail. The billet hydraulic clamping structure includes a lower cross frame arranged on the upper part of the mobile trolley along the width direction of the mobile trolley. The lower cross frame has lower upright frames at both ends that are in contact with the ground. The lower cross frame has an arc-shaped groove in the middle and a clamp base is arranged in the arc-shaped groove. An upper upright frame is arranged at one end of the lower cross frame. The upper cross frame is rotatably connected to the top of the upper upright frame. The upper cross frame is connected to the lower cross frame through a clamp hydraulic cylinder, so that the upper cross frame can rotate around the connection point with the upper upright frame. A clamp top seat corresponding to the clamp base is arranged at the end of the upper cross frame away from the upper upright frame. The main cleaning structure includes a main reduction motor, a bearing housing, a main disc-type wire brush or a main cup-type wire brush, and a wire wheel assembly arranged sequentially from the end of the sliding platform to the hydraulic clamping structure of the billet. The main reduction motor is mounted on the end of the sliding platform via a main motor housing. The output shaft of the main reduction motor is connected to the main grinding shaft via a coupling. The main grinding shaft passes through the bearing housing and is connected to the main disc-type wire brush or the main cup-type wire brush and the wire wheel assembly. The auxiliary cleaning structure includes an auxiliary reduction motor, a bearing housing II, and an auxiliary disc-type wire brush or an auxiliary cup-type wire brush arranged sequentially from the end of the sliding platform to the hydraulic clamping structure of the billet. The auxiliary reduction motor is mounted on the end of the sliding platform via an auxiliary motor seat. The output shaft of the auxiliary reduction motor is connected to the auxiliary grinding shaft via a coupling II. The auxiliary grinding shaft passes through the bearing housing II and is connected to the auxiliary disc-type wire brush or the auxiliary cup-type wire brush.

[0007] Furthermore, the platform structure includes a worktable, with support legs provided at the four corners of the worktable, and the transmission assembly is disposed on the worktable.

[0008] Furthermore, the transmission assembly includes a main transmission sprocket and a secondary transmission sprocket disposed on the upper part of the worktable, and a forward sprocket and a reverse sprocket disposed on the lower part of the worktable. One end of the transmission chain is connected to one end of the sliding platform, and the other end passes sequentially around the main transmission sprocket, the forward sprocket, the reverse sprocket, and the secondary transmission sprocket before being connected to the other end of the sliding platform. A clamping assembly for supporting the transmission chain is also disposed between the forward sprocket and the reverse sprocket.

[0009] Furthermore, the clamping assembly includes a clamping sprocket disposed on the lower part of the worktable. The clamping sprocket is connected to the bearing seats on both sides via a sprocket shaft. The bearing seats are disposed on the upper clamping plate. The bottom of the upper clamping plate is connected to the lower clamping plate via a compression spring. The two ends of the lower clamping plate are fixedly disposed between the clamping wheel legs. The two ends of the upper clamping plate are slidably connected between the clamping wheel legs.

[0010] Furthermore, the sliding platform is provided with ear plates at both ends that are connected to the transmission chain.

[0011] Furthermore, the fixture base includes a fixture lobe one and a fixture lobe two arranged opposite to each other. One end of the fixture lobe one and the fixture lobe two located in the middle of the arc groove are hinged to each other, and the other end extends out of the arc groove and its outer side abuts against an adjusting screw. The adjusting screw is threadedly connected to a screw seat.

[0012] Furthermore, the fixture top seat includes an upper pressure seat, the bottom of which is provided with an arc-shaped pressure groove, and both ends of the arc-shaped pressure groove are provided with arc-shaped surfaces corresponding to the outer wall of the ring-cast steel billet. The top of the arc-shaped pressure groove is connected to the upper cross frame through a connecting rod.

[0013] Furthermore, the main disc-type wire brush or main bowl-type wire brush and the auxiliary disc-type wire brush or auxiliary bowl-type wire brush have the same structure. The main disc-type wire brush or main bowl-type wire brush includes a bearing disc, and several wire brush heads are arranged circumferentially on the side of the bearing disc facing the hydraulic clamping structure of the billet.

[0014] Furthermore, the wire wheel assembly includes multiple sets of wire wheel discs with different outer diameters. The diameter of the wire wheel discs gradually increases from both ends of the wire wheel assembly to the middle. The wire wheel discs are pressed against the main grinding shaft in a spindle shape. Twisted coarse steel wires are arranged on the outer circumference of the wire wheel discs. The twisted coarse steel wires of adjacent wire wheel discs are arranged alternately. The total outer diameter of the largest wire wheel disc located in the middle of the wire wheel assembly and the twisted coarse steel wires outside it is greater than the inner diameter of the billet.

[0015] Furthermore, the main drive sprocket, the forward sprocket, the rearward sprocket, and the auxiliary drive sprocket are each in two sets. The two sets of main drive sprockets, forward sprockets, rearward sprockets, and auxiliary drive sprockets are connected to the platform structure through their respective rotating shafts and bearing seats. The rotating shaft of the main drive sprocket is connected to the output shaft of the sprocket drive motor through a coupling. The sprocket drive motor is connected to one side of the platform structure through a motor platform bracket.

[0016] The advantages of this utility model compared with the prior art are as follows: (1) This device adopts a combination design of main / auxiliary double cleaning structure installed on the same sliding platform. It can grind the inner wall and double side oxide scale of high temperature annular thin centrifugal steel billet by moving the sliding platform in the forward and reverse directions, which greatly improves production efficiency and reduces processing time and labor costs.

[0017] (2) The coaxial design of the wire wheel group and disc / bowl type wire brush in the main / auxiliary dual cleaning structure can complete the continuous grinding of the inner wall of the billet and one side on the same drive device, as well as the time required for the cooling of the grinding wheel. This ensures the grinding speed, reduces the wear of the grinding wheel, improves the durability of the grinding wheel, and simplifies the device structure. (3) The steel billet can be locked by the cooperation of the fixture base and the fixture top seat. At the same time, the spacing of the fixture petals in the fixture base can be adjusted, which can be applied to different sizes of annular thin centrifugal steel billets. In addition, the lever-type fixture top seat provides a large space for easy clamping of castings, which has wide applicability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the hydraulic clamping structure for casting billets in the pressing state of this utility model.

[0020] Figure 3 This is a schematic diagram of the hydraulic clamping structure for the cast billet in the loosened state in this utility model.

[0021] Figure 4 This is a structural schematic diagram of the main disc-type wire brush or the main bowl-type wire brush in this utility model.

[0022] Figure 5 This is a schematic diagram of the clamping component in this utility model.

[0023] Figure 6 This is a schematic diagram of the sprocket drive motor in this utility model.

[0024] Figure 7 This is a schematic diagram of the steel wire wheel assembly in this utility model.

[0025] Figure 8 This is a top view of the structure of this utility model.

[0026] Figure 9 This is a schematic diagram of the main cleaning structure during cleaning in this utility model.

[0027] Figure 10 This is a schematic diagram of the auxiliary cleaning structure during cleaning in this utility model. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] In the description of the embodiments of this utility model, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," or "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and "third" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] Furthermore, the use of terms such as "horizontal," "vertical," and "sag" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0031] In the description of the embodiments of this utility model, "a plurality of" means at least two.

[0032] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] Example

[0034] Combined with appendix Figure 1-10 This embodiment discloses a device for removing oxide scale from the inner wall and both sides of a high-temperature thin ring-cast steel billet. The device includes a platform structure 1, a mobile trolley structure 2 on the upper part of the platform structure 1, a billet hydraulic clamping structure 3 on the outside of the mobile trolley structure 2, and a main cleaning structure 4 and a secondary cleaning structure 5 corresponding to the billet hydraulic clamping structure 3 at both ends of the mobile trolley structure 2. The mobile trolley structure 2 includes a linear slide rail 201, which is set along the length of the platform structure 1. A sliding platform 202 is slidably connected to the linear slide rail 201. Both ends of the sliding platform 202 are connected to the transmission assembly 6 through the transmission chain 203, so that the sliding platform 202 can move back and forth on the linear slide rail 201. The billet hydraulic clamping structure 3 includes a lower crossbeam 301 located on the upper part of the mobile trolley structure 2 along the width direction of the mobile trolley. Lower uprights 302, which are in contact with the ground, are located at both ends of the lower crossbeam 301. An arc-shaped groove 303 is located in the middle of the lower crossbeam 301, and a clamping base 304 is located within the arc-shaped groove 303. An upper upright 305 is located at one end of the lower crossbeam 301. An upper crossbeam 306 is rotatably connected to the top of the upper upright 305. The upper crossbeam 306 is connected to the lower crossbeam 301 via a clamping hydraulic cylinder 307, allowing the upper crossbeam 306 to rotate around its connection point with the upper upright 305. The clamping hydraulic cylinder 307 is hinged at both ends to the upper crossbeam 306 and the lower crossbeam 301, respectively. A clamping top seat 308, corresponding to the clamping base 304, is located at the end of the upper crossbeam 306 away from the upper upright 305. The main cleaning structure 4 includes a main reduction motor 401, a bearing housing 402, a main disc-type wire brush or a main cup-type wire brush 403, and a wire wheel set 404 arranged sequentially from the end of the sliding platform 202 to the billet hydraulic clamping structure 3. The main reduction motor 401 is set at the end of the sliding platform 202 through the main motor housing 405. The output shaft of the main reduction motor 401 is connected to the main grinding shaft 407 through the coupling 406. The main grinding shaft 407 passes through the bearing housing 402 and is connected to the main disc-type wire brush or the main cup-type wire brush 403 and the wire wheel set 404. The auxiliary cleaning structure 5 includes an auxiliary reduction motor 501, a bearing housing 502, and an auxiliary disc-type wire brush or an auxiliary cup-type wire brush 503 arranged sequentially from the end of the sliding platform 202 to the billet hydraulic clamping structure 3. The auxiliary reduction motor 501 is mounted on the end of the sliding platform 202 via an auxiliary motor seat. The output shaft of the auxiliary reduction motor 501 is connected to the auxiliary grinding shaft 505 via a coupling 504. The auxiliary grinding shaft 505 passes through the bearing housing 502 and is connected to the auxiliary disc-type wire brush or the auxiliary cup-type wire brush 503.

[0035] The platform structure 1 includes a worktable 101, with support legs 102 at each of the four corners of the worktable 101, and a transmission assembly 6 mounted on the worktable 101.

[0036] The transmission assembly 6 includes a main drive sprocket 601 and a secondary drive sprocket 602 disposed on the upper part of the worktable 101, and a forward sprocket 603 and a reverse sprocket 604 disposed on the lower part of the worktable 101. One end of the transmission chain 203 is connected to one end of the sliding platform 202, and the other end passes through the main drive sprocket 601, the forward sprocket 603, the reverse sprocket 604, and the secondary drive sprocket 602 in sequence before connecting to the other end of the sliding platform 202. A clamping assembly 7 for supporting the transmission chain 203 is also provided between the forward sprocket 603 and the reverse sprocket 604. The main drive sprocket 601, the forward sprocket 603, the reverse sprocket 604, and the secondary drive sprocket 602 are in two sets. The two sets of main drive sprocket 601, forward sprocket 603, reverse sprocket 604, and secondary drive sprocket 602 are respectively connected to the platform structure through their respective rotating shafts and bearing seats. The rotating shaft of the main drive sprocket 601 is connected to the output shaft of the sprocket drive motor 606 through coupling 605. The sprocket drive motor 606 is connected to one side of the platform structure 1 through the motor platform bracket 607.

[0037] The clamping assembly 7 includes a clamping sprocket 701 disposed on the lower part of the worktable 101. The clamping sprocket 701 is connected to the bearing seats 703 on both sides via a sprocket shaft 702. The bearing seats 703 are disposed on the upper clamping plate 704. The bottom of the upper clamping plate 704 is connected to the lower clamping plate 706 via a compression spring 705. The two ends of the lower clamping plate 706 are fixedly disposed between the clamping wheel support legs 707. The two ends of the upper clamping plate 704 are slidably connected between the clamping wheel support legs 707.

[0038] The sliding platform 202 has ear plates 204 at both ends that are connected to the transmission chain 203.

[0039] The fixture base 304 includes a fixture lobe 304a and a fixture lobe 304b arranged opposite to each other. One end of the fixture lobe 304a and the fixture lobe 304b located in the middle of the arc groove 303 is hinged to each other, and the other end extends out of the arc groove 303 and its outer side abuts against an adjusting screw 304c. The adjusting screw 304c is threadedly connected to the screw seat 304d.

[0040] The fixture top seat 308 includes an upper pressure seat 308a. The bottom of the upper pressure seat 308a is provided with an arc-shaped pressure groove 308b. Both ends of the arc-shaped pressure groove 308b are provided with arc-shaped surfaces 308c corresponding to the outer wall of the ring-cast steel billet. The top of the arc-shaped pressure groove 308b is connected to the upper cross frame 306 through a connecting rod 308d.

[0041] The main disc-type wire brush or main bowl-type wire brush 403 and the auxiliary disc-type wire brush or auxiliary bowl-type wire brush 503 have the same structure. The main disc-type wire brush or main bowl-type wire brush 403 includes a bearing disc 403a, and several wire brush heads 403b are arranged circumferentially on the side of the bearing disc 403a facing the hydraulic clamping structure 3 of the billet.

[0042] The wire wheel assembly 404 includes multiple sets of wire wheel discs 404a with different outer diameters. The diameter of the wire wheel discs 404a gradually increases from both ends to the middle of the wire wheel assembly 404. The wire wheel discs 404a are pressed against the main grinding shaft 407 in a spindle shape. Twisted coarse steel wires 404b are arranged on the outer circumference of the wire wheel discs 404a. The twisted coarse steel wires 404b of adjacent wire wheel discs 404a are arranged alternately. The total outer diameter of the largest wire wheel disc 404a located in the middle of the wire wheel assembly and the twisted coarse steel wires 404b outside it is larger than the inner diameter of the billet. This allows the wire wheel assembly 404 to thoroughly clean the inner wall of the billet by rotating and grinding closely through the center of the billet, effectively removing oxide scale and fly burrs.

[0043] In practice, the clamp top seat is lifted by the clamp hydraulic cylinder, and the ring casting blank to be cleaned is placed into the clamp base. Then, the clamp hydraulic cylinder retracts, and the clamp top seat descends to contact the top of the ring casting blank to be cleaned, firmly fixing the casting blank between the clamp top seat and the clamp base, so that the center of the inner hole of the ring casting blank to be cleaned is at the same horizontal line as the center of the main grinding shaft. In addition, by adjusting the adjusting screws on both sides of clamp lobe one and clamp lobe two in the clamp base, the distance between clamp lobe one and clamp lobe two can be adjusted to facilitate the placement of cleaning ring casting blanks of different diameters. Start the main reduction motor to drive the wire wheel assembly on the main grinding shaft and the main disc-type wire brush or the main cup-type wire brush to rotate horizontally at the same time. The forward drive of the sprocket drive motor in the mobile trolley structure is activated, causing the main cleaning structure on the upper part of the sliding platform to move forward toward the billet under the drive of the transmission chain. The wire wheel with a smaller diameter at the end of the wire wheel set begins to enter the inner hole of the billet and begins to clean the burrs on the outside of the inner hole of the billet. As the wire wheel set gradually enters, the rotating twisted coarse steel wire repeatedly grinds the inner hole of the billet and pushes the uncleaned burrs on the other side of the billet to the outside of the billet and turns it outward. After the entire wire wheel set has passed through, it begins to idle. After the main disc type wire brush or the main cup type wire brush presses against the side of the billet, the disc type / cup type wire brush grinds the side of the billet under the drive of its bearing disc until all the oxide scale is removed. The reverse transmission of the sprocket drive motor in the mobile trolley structure is activated, causing the sliding platform to be driven by the transmission chain. The secondary cleaning structure moves towards the billet, while the main cleaning structure moves in the opposite direction. The wire wheel set in the main cleaning structure passes through the inner hole of the ring casting again to clean the inner wall of the billet until the wire wheel set completely exits the billet, completing the cleaning of the inner hole of the billet. As the wire wheel set in the main cleaning structure moves away from the billet, the secondary disc-type wire brush or secondary cup-type wire brush of the secondary cleaning structure presses the billet, and the sliding platform stops moving. The secondary cleaning structure removes the oxide scale from the other side of the billet until the oxide scale is completely removed. Restart the forward drive of the sprocket drive motor to move the auxiliary cleaning device to a certain distance from the annular billet and complete the billet cleaning.

[0044] Start the hydraulic cylinder of the clamp, loosen the top seat of the clamp, take out the cleaned casting, put the casting to be processed again and clamp the clamp, repeat the above actions to achieve continuous operation of oxide scale removal of ring casting billets.

[0045] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0046] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An apparatus for removing oxide scale from the inner wall and both sides of a high-temperature thin-walled ring-cast steel billet, characterized in that, The platform structure includes a mobile trolley structure on its upper part, a billet hydraulic clamping structure on the outside of the mobile trolley structure, and a main cleaning structure and a secondary cleaning structure corresponding to the billet hydraulic clamping structure at both ends of the mobile trolley structure. The mobile trolley structure includes a linear slide rail, which is arranged along the length of the platform structure. A sliding platform is slidably connected to the linear slide rail, and both ends of the sliding platform are connected to a transmission component via a transmission chain, so that the sliding platform can move back and forth on the linear slide rail. The billet hydraulic clamping structure includes a lower cross frame arranged on the upper part of the mobile trolley along the width direction of the mobile trolley. The lower cross frame has lower upright frames at both ends that are in contact with the ground. The lower cross frame has an arc-shaped groove in the middle and a clamp base is arranged in the arc-shaped groove. An upper upright frame is arranged at one end of the lower cross frame. The upper cross frame is rotatably connected to the top of the upper upright frame. The upper cross frame is connected to the lower cross frame through a clamp hydraulic cylinder, so that the upper cross frame can rotate around the connection point with the upper upright frame. A clamp top seat corresponding to the clamp base is arranged at the end of the upper cross frame away from the upper upright frame. The main cleaning structure includes a main reduction motor, a bearing housing, a main disc-type wire brush or a main cup-type wire brush, and a wire wheel assembly arranged sequentially from the end of the sliding platform to the hydraulic clamping structure of the billet. The main reduction motor is mounted on the end of the sliding platform via a main motor housing. The output shaft of the main reduction motor is connected to the main grinding shaft via a coupling. The main grinding shaft passes through the bearing housing and is connected to the main disc-type wire brush or the main cup-type wire brush and the wire wheel assembly. The auxiliary cleaning structure includes an auxiliary reduction motor, a bearing housing II, and an auxiliary disc-type wire brush or an auxiliary cup-type wire brush arranged sequentially from the end of the sliding platform to the hydraulic clamping structure of the billet. The auxiliary reduction motor is mounted on the end of the sliding platform via an auxiliary motor seat. The output shaft of the auxiliary reduction motor is connected to the auxiliary grinding shaft via a coupling II. The auxiliary grinding shaft passes through the bearing housing II and is connected to the auxiliary disc-type wire brush or the auxiliary cup-type wire brush.

2. The apparatus for removing oxide scale from the inner wall and both sides of a high-temperature thin-walled ring-cast steel billet according to claim 1, characterized in that, The platform structure includes a worktable, with support legs at each of the four corners of the worktable, and the transmission assembly is mounted on the worktable.

3. The apparatus for removing oxide scale from the inner wall and both sides of a high-temperature thin-walled ring-cast steel billet according to claim 2, characterized in that, The transmission assembly includes a main drive sprocket and a secondary drive sprocket located on the upper part of the worktable, and a forward sprocket and a reverse sprocket located on the lower part of the worktable. One end of the transmission chain is connected to one end of the sliding platform, and the other end passes sequentially around the main drive sprocket, the forward sprocket, the reverse sprocket, and the secondary drive sprocket before connecting to the other end of the sliding platform. A clamping assembly for supporting the transmission chain is also provided between the forward sprocket and the reverse sprocket.

4. The apparatus for removing oxide scale from the inner wall and both sides of a high-temperature thin-walled ring-cast steel billet according to claim 3, characterized in that, The clamping assembly includes a clamping sprocket disposed on the lower part of the worktable. The clamping sprocket is connected to the bearing seats on both sides via a sprocket shaft. The bearing seats are disposed on the upper clamping plate. The bottom of the upper clamping plate is connected to the lower clamping plate via a compression spring. The two ends of the lower clamping plate are fixedly disposed between the clamping wheel legs. The two ends of the upper clamping plate are slidably connected between the clamping wheel legs.

5. The apparatus for removing oxide scale from the inner wall and both sides of a high-temperature thin-walled ring-cast steel billet according to claim 1, characterized in that, The sliding platform is provided with ear plates at both ends that are connected to the transmission chain.

6. The apparatus for removing oxide scale from the inner wall and both sides of a high-temperature thin-walled ring-cast steel billet according to claim 1, characterized in that, The fixture base includes a fixture lobe one and a fixture lobe two arranged opposite to each other. One end of the fixture lobe one and the fixture lobe two located in the middle of the arc groove are hinged to each other, and the other end extends out of the arc groove and its outer side is abutted against an adjusting screw. The adjusting screw is threadedly connected to the screw seat.

7. The apparatus for removing oxide scale from the inner wall and both sides of a high-temperature thin-walled ring-cast steel billet according to claim 1, characterized in that, The fixture top seat includes an upper pressure seat, the bottom of which is provided with an arc-shaped pressure groove, and both ends of the arc-shaped pressure groove are provided with arc-shaped surfaces corresponding to the outer wall of the ring-cast steel billet. The top of the arc-shaped pressure groove is connected to the upper cross frame through a connecting rod.

8. The apparatus for removing oxide scale from the inner wall and both sides of a high-temperature thin-walled ring-cast steel billet according to claim 1, characterized in that, The main disc-type wire brush or main bowl-type wire brush and the auxiliary disc-type wire brush or auxiliary bowl-type wire brush have the same structure. The main disc-type wire brush or main bowl-type wire brush includes a bearing disc, and several wire brush heads are arranged circumferentially on the side of the bearing disc facing the hydraulic clamping structure of the billet.

9. The apparatus for removing oxide scale from the inner wall and both sides of a high-temperature thin-walled ring-cast steel billet according to claim 1, characterized in that, The wire wheel assembly includes multiple sets of wire wheel discs with different outer diameters. The diameter of the wire wheel discs gradually increases from both ends of the wire wheel assembly to the middle. The wire wheel discs are pressed against the main grinding shaft in a spindle shape. Twisted coarse steel wires are arranged on the outer circumference of the wire wheel discs. The twisted coarse steel wires of adjacent wire wheel discs are arranged alternately. The total outer diameter of the largest wire wheel disc located in the middle of the wire wheel assembly and the twisted coarse steel wires outside it is greater than the inner diameter of the billet.

10. The apparatus for removing oxide scale from the inner wall and both sides of a high-temperature thin-walled ring-cast steel billet according to claim 3, characterized in that, The main drive sprocket, the forward sprocket, the rearward sprocket, and the auxiliary drive sprocket are divided into two sets. The two sets of main drive sprockets, forward sprockets, rearward sprockets, and auxiliary drive sprockets are connected to the platform structure through their respective rotating shafts and bearing seats. The rotating shaft of the main drive sprocket is connected to the output shaft of the sprocket drive motor through a coupling. The sprocket drive motor is connected to one side of the platform structure through a motor platform bracket.

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