A large crankshaft forging surface scale cleaning device

Abstract

The utility model relates to the technical field of crankshaft forge piece surface oxide scale cleaning, especially relates to a large -scale crankshaft forge piece surface oxide scale cleaning device, including support frame, idler wheel, cylinder, fixed block, steel rail, portal frame and load wheel, support frame top symmetry linear array rotation formula connection has a plurality of idler wheels, both sides idler wheel included angle is V type, support frame front and back both sides symmetry all fixedly connected with cylinder, every cylinder's piston rod end all fixedly connected with fixed block, support frame bottom symmetry fixed connection has steel rail, portal frame bottom symmetry linear array rotation formula connection has three load wheels, every load wheel all with corresponding steel rail abutment cooperation. The utility model discloses through the cleaning mechanism of impact hammer and roller brush, utilizes the high frequency mechanical impact of impact hammer to make the hard oxide scale break and shake loose, and immediately carries out the brush and polishing to the surface through the roller brush of high -speed rotation, effectively removes the debris of shake loose after not falling off.

Description

Technical Field

[0001] This utility model relates to the field of oxide scale removal technology for crankshaft forgings, and in particular to a device for removing oxide scale from the surface of large crankshaft forgings. Background Technology

[0002] Large crankshafts are usually formed by forging. During the high-temperature forging and subsequent heat treatment process, a hard and highly adhesive oxide scale will be generated on the surface. If this oxide scale is not completely removed, it will not only affect subsequent processing, but also hide defects such as cracks, posing a serious threat to the fatigue strength and safety of the crankshaft.

[0003] However, the removal of oxide scale from large crankshaft forgings currently relies mainly on manual hammering using tools such as jackhammers and pneumatic picks. Manual hammering is not only extremely labor-intensive, inefficient, and produces uneven cleaning results, but also presents a harsh working environment and safety hazards.

[0004] Therefore, it is necessary to design a device for cleaning oxide scale from the surface of large crankshaft forgings in order to solve the above-mentioned technical problems. Utility Model Content

[0005] In order to overcome the shortcomings of low efficiency and high labor intensity of manual oxide scale removal for large crankshaft forgings, this utility model provides an oxide scale removal device for the surface of large crankshaft forgings.

[0006] This utility model provides a device for cleaning oxide scale from the surface of large crankshaft forgings, including a support frame, rollers, cylinders, fixed blocks, steel rails, a gantry frame, load-bearing wheels, a first motor, gears, racks, and a cleaning mechanism. Multiple rollers are symmetrically arranged in a linear array and rotated on the top of the support frame, with the rollers on both sides forming a V-shape. Cylinders are symmetrically fixedly connected to both the front and rear sides of the support frame, and a fixed block is fixedly connected to the end of the piston rod of each cylinder. Steel rails are symmetrically fixedly connected to the bottom of the support frame. Three load-bearing wheels are symmetrically arranged in a linear array and rotated on the bottom of the gantry frame, with each load-bearing wheel engaging with a corresponding steel rail. A first motor is fixedly connected to the left side of the gantry frame, and a gear is fixedly connected to the end of the output shaft of the first motor. A rack is fixedly connected to the left side of the steel rail on one side of the first motor, and the rack and gear mesh with each other. A cleaning mechanism is located in the middle of the gantry frame.

[0007] Furthermore, the cleaning mechanism includes an impact hammer, a wear-resistant block, a second motor, and a roller brush. Impact hammers are fixedly connected to both sides and the top of the inner wall of the gantry. A wear-resistant block is fixedly connected to the output end of each impact hammer. A second motor is symmetrically fixedly connected to the upper part of the inner wall of the gantry. A roller brush is fixedly connected to the end of the output shaft of each second motor.

[0008] Furthermore, it also includes horizontal wheels, with multiple horizontal wheels connected in a linear array rotating on both sides of the bottom of the gantry.

[0009] Furthermore, it also includes a collection hopper, a third motor, a screw, and a waste frame. The collection hopper is fixedly connected to the middle of the support frame, the third motor is fixedly connected to the rear of the support frame, the screw is fixedly connected to the output shaft of the third motor, the front of the support frame is rotatably connected to the screw, the screw is in close contact with the collection hopper, and the waste frame is slidably connected to the front side of the collection hopper.

[0010] Furthermore, the rollers are made of high-strength alloy material.

[0011] Furthermore, the roller brush is made of stainless steel.

[0012] Beneficial effects: 1. The present invention uses a cleaning mechanism consisting of an impact hammer and a roller brush. The high-frequency mechanical impact generated by the impact hammer breaks and loosens the hard oxide scale, and then the surface is brushed and polished by the high-speed rotating roller brush, which can effectively remove the debris that has not fallen off after loosening.

[0013] 2. This utility model uses a first motor to drive a gear and a rack to mesh, which drives the entire gantry frame to move smoothly along the rails. The fixed block driven by the cylinder reliably fixes the crankshaft, realizing mechanized operations from feeding, fixing, cleaning to debris collection, which significantly reduces the labor intensity of workers.

[0014] 3. This utility model uses a hopper to collect falling oxide scale debris and a third motor to drive the screw to rotate, forming a pushing mechanism to automatically collect and transport the debris to the waste box, keeping the working area clean and ensuring the durability and long-term reliability of the core components. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the support frame, rollers, cylinders, and other components of this utility model.

[0017] Figure 3 This is a partial cross-sectional view of the components of this utility model, including the rails, gantry frame, and load-bearing wheels.

[0018] Figure 4 This is a three-dimensional structural diagram of the gears and racks of this utility model.

[0019] Figure 5 This is a three-dimensional structural diagram of the impact hammer, wear-resistant block, and roller brush components of this utility model.

[0020] Figure 6 This is a partial cross-sectional view of the screw and waste frame components of this utility model.

[0021] In the attached diagram: 1: support frame, 2: roller, 3: cylinder, 4: fixing block, 5: rail, 6: gantry frame, 7: load-bearing wheel, 8: horizontal wheel, 9: first motor, 10: gear, 11: rack, 12: impact hammer, 13: wear-resistant block, 14: second motor, 15: roller brush, 16: collection hopper, 17: third motor, 18: screw, 19: waste frame. Detailed Implementation

[0022] Example: A device for cleaning oxide scale from the surface of large crankshaft forgings, such as... Figures 1-6 As shown, the system includes a support frame 1, rollers 2, cylinders 3, fixing blocks 4, rails 5, a gantry frame 6, load-bearing wheels 7, a first motor 9, gears 10, racks 11, and a cleaning mechanism. The top of the support frame 1 has eight rollers 2 arranged in a symmetrical linear array and rotated. The rollers 2 on the left and right sides form a V-shape. Cylinders 3 are symmetrically mounted on both sides of the support frame 1 via screws. The piston rod of each cylinder 3 is keyed to a fixing block 4. Rails 5 are symmetrically mounted on the bottom of the support frame 1. Three load-bearing wheels 7 are symmetrically arranged in a symmetrical linear array and rotated on the bottom of the gantry frame 6. Each load-bearing wheel 7 abuts against a corresponding rail 5. The first motor 9 is mounted on the bottom left side of the gantry frame 6 via screws. A gear 10 is mounted on the output shaft of the first motor 9 via a coupling. A rack 11 is welded to the left side of the rail 5 on one side of the first motor 9, and the rack 11 meshes with the gear 10. A cleaning mechanism is located in the middle of the gantry frame 6.

[0023] like Figure 1 and Figure 5 As shown, the cleaning mechanism includes an impact hammer 12, a wear-resistant block 13, a second motor 14, and a roller brush 15. The impact hammer 12 is installed on the left and right sides and the top of the inner wall of the gantry frame 6 by screws. The output end of each impact hammer 12 is keyed to a wear-resistant block 13. The second motor 14 is symmetrically installed on the upper part of the inner wall of the gantry frame 6 by screws. The output shaft end of each second motor 14 is installed with a roller brush 15 through a coupling. The roller brush 15 is made of stainless steel, which has high hardness and good wear resistance, preventing the brush bristles from wearing or breaking prematurely and ensuring cleaning efficiency.

[0024] like Figure 3 and Figure 5 As shown, it also includes horizontal wheels 8. Three horizontal wheels 8 are linearly arrayed and rotatably connected on the bottom of the gantry frame 6 near the rail 5.

[0025] When using this device, the large crankshaft forging to be cleaned is first hoisted by an overhead crane to the top of the support frame 1. The large crankshaft is precisely placed within the V-shaped angle formed by rollers 2 arranged symmetrically on both sides. The rollers 2, made of high-strength alloy material, can effectively support the weight of the crankshaft. After the crankshaft forging is adjusted to the predetermined position on the rollers 2, the operator activates the four cylinders 3 symmetrically installed on the front and rear sides of the support frame 1. The piston rods of all cylinders 3 extend synchronously, pushing the fixing blocks 4 at the ends of the piston rods upward to prevent accidental movement and ensure the safety and stability of the cleaning process. After the crankshaft forging is fixed, the operator starts the first motor 9. The output shaft of the first motor 9 drives the gear 10 to rotate and move along the rack 11, thereby generating a traction force to drive the entire gantry 6 to move linearly along the rail 5. The three load-bearing wheels 7 at the bottom of the gantry 6 roll smoothly on the rail 5, bearing the load of the gantry 6. The entire weight guides its movement. Due to the slight gap between the horizontal wheel 8 and the side of the rail 5, if the gantry 6 deviates slightly during movement, the horizontal wheel 8 will immediately press against the side of the rail 5, generating a corrective reaction force that forces the gantry 6 back to the correct trajectory. At the same time, the operator starts the impact hammer 12 and the second motor 14. The impact hammer 12 generates high-frequency, powerful mechanical impacts, which are transmitted to the crankshaft surface through the wear-resistant block 13, causing the oxide scale to crack, loosen, and peel off from the crankshaft forging. Simultaneously, the output shaft of the second motor 14 drives the stainless steel roller brush 15 to rotate at high speed. These high-speed rotating roller brushes 15 follow the impact hammer 12, brushing the vibrated crankshaft surface to further remove oxide scale debris that has been loosened by the impact hammer 12 but has not yet fallen off, and polish the crankshaft surface to achieve a better cleaning effect.

[0026] like Figure 1 and Figure 6 As shown, it also includes a collection hopper 16, a third motor 17, a screw 18, and a waste frame 19. The collection hopper 16 is welded to the middle of the support frame 1. The third motor 17 is installed on the rear side of the middle of the support frame 1 by screws. The screw 18 is installed on the output shaft of the third motor 17 by a coupling. The middle front side of the support frame 1 is rotatably connected to the screw 18. The screw 18 is in close contact with the collection hopper 16. The waste frame 19 is slidably connected to the front side of the collection hopper 16.

[0027] When oxide scale debris is generated during the cleaning process, the collecting hopper 16 first catches the falling debris and guides it to the collection point. Then, the operator starts the third motor 17, which drives the screw 18 on the output shaft of the third motor 17 to rotate. The rotating screw 18 closely abuts against the collecting hopper 16, continuously conveying the oxide scale debris accumulated in the collecting hopper 16 forward. Finally, all the waste is pushed into the waste frame 19 in front of the collecting hopper 16, realizing the automatic collection and centralized processing of debris and keeping the work area clean. After completing one cycle of cleaning work, the operator controls the first motor 9 to reverse, driving the gantry 6 back to the starting position. At the same time, the operator can close the cylinder 3 to retract the fixing block 4. The crankshaft is then rotated to a new angle by the overhead crane and fixed again. The above process is repeated until the oxide scale on the entire surface of the crankshaft is completely cleaned.

Claims

1. A device for cleaning oxide scale from the surface of large crankshaft forgings, characterized in that, The system includes a support frame (1), rollers (2), cylinders (3), fixing blocks (4), rails (5), gantry (6), load-bearing wheels (7), a first motor (9), gears (10), racks (11), and a cleaning mechanism. The top of the support frame (1) is symmetrically connected in a linear array with multiple rollers (2) rotating. The rollers (2) on both sides form a V-shape. Cylinders (3) are symmetrically fixed to both the front and rear sides of the support frame (1). A fixing block (4) is fixedly connected to the end of the piston rod of each cylinder (3). The bottom of the support frame (1)... The gantry (6) is symmetrically fixed with steel rails (5). The bottom of the gantry (6) is symmetrically connected with three load-bearing wheels (7) in a linear array. Each load-bearing wheel (7) is in contact with the corresponding steel rail (5). The left side of the gantry (6) is fixedly connected with a first motor (9). The output shaft of the first motor (9) is fixedly connected with a gear (10). The left side of the steel rail (5) on the side of the first motor (9) is fixedly connected with a rack (11). The rack (11) and the gear (10) mesh with each other. The middle part of the gantry (6) is provided with a cleaning mechanism.

2. The device for cleaning oxide scale from the surface of a large crankshaft forging according to claim 1, characterized in that, The cleaning mechanism includes an impact hammer (12), a wear-resistant block (13), a second motor (14) and a roller brush (15). The impact hammer (12) is fixedly connected to both sides and the top of the inner wall of the gantry frame (6). The output end of each impact hammer (12) is fixedly connected to a wear-resistant block (13). The upper part of the inner wall of the gantry frame (6) is symmetrically fixedly connected to a second motor (14). The output shaft end of each second motor (14) is fixedly connected to a roller brush (15).

3. The device for cleaning oxide scale from the surface of a large crankshaft forging according to claim 2, characterized in that, It also includes horizontal wheels (8), and multiple horizontal wheels (8) are connected in a linear array on both sides of the bottom of the gantry (6).

4. The device for cleaning oxide scale from the surface of a large crankshaft forging according to claim 3, characterized in that, It also includes a collection hopper (16), a third motor (17), a screw (18) and a waste frame (19). The collection hopper (16) is fixedly connected to the middle of the support frame (1), and the third motor (17) is fixedly connected to the rear of the support frame (1). The screw (18) is fixedly connected to the output shaft of the third motor (17). The front of the support frame (1) is rotatably connected to the screw (18). The screw (18) is in close contact with the collection hopper (16). The waste frame (19) is slidably connected to the front side of the collection hopper (16).

5. The device for cleaning oxide scale from the surface of a large crankshaft forging according to claim 4, characterized in that, The roller (2) is made of high-strength alloy material.

6. The device for cleaning oxide scale from the surface of a large crankshaft forging according to claim 5, characterized in that, The roller brush (15) is made of stainless steel.

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