Material guiding wear-resistant optimized structure of vertical mill blade

Abstract

The invention discloses a material guide wear-resistant optimized structure of a vertical mill blade, which relates to the field of grinding processing, and comprises a distance adjusting base, a distance adjusting screw rod arranged between two shaft rod supports on the distance adjusting base, a sliding support column connected with a guide sliding shaft, and a clamping seat rotatably connected with a rotary connection seat at the upper end of the sliding support column, the clamping device has the beneficial effects that the distance between the two clamping seats can be adjusted according to the length size of a fan blade to be machined to adapt to the fan blade, the clamping device is suitable for machining pieces of different sizes, and after the two ends of the fan blade are arranged in the clamping openings of the two clamping seats correspondingly, hydraulic pipe connectors are connected with existing hydraulic equipment through hydraulic pipes; oil is supplied to the multiple oil cavities in the hydraulic clamping driving box at the same time through hydraulic equipment, the ejector rods are ejected out under the pressure of hydraulic oil till the ends of the ejector rods abut against the fan blades, the ejector rods can be adaptively pressed, attached and fixed to the surfaces of the fan blades, and the fixing mode of the fan blades is simple and easy to operate.

Description

Technical Field

[0001] This invention relates to the field of grinding, and in particular to a material-guiding and wear-resistant optimized structure for vertical mill blades. Background Technology

[0002] During the operation of a vertical mill, the blades, as the core working components, play a crucial role in material conveying, guiding, and grinding assistance. Their structural design directly affects the grinding efficiency, material handling accuracy, and service life of the vertical mill. Existing vertical mill blades mostly adopt a single planar or simple curved surface structure, which reveals several shortcomings in practical applications: Firstly, the material guiding performance is poor. Due to the lack of targeted optimization of the blade's guiding angle and curvature, the material flow trajectory on the blade surface is irregular, easily leading to accumulation and flow deviation. This not only reduces the uniformity of material grinding but also increases the equipment's operating resistance, resulting in increased energy consumption. Secondly, the wear resistance is insufficient to meet the demands of long-term operation. Vertical mill blades need to continuously impact and rub against high-hardness materials. Existing blades are mostly made of a single homogeneous material without reinforcement design in easily worn areas, and the blade surface smoothness is insufficient. The friction coefficient between the material and the blade is relatively high, making the blade edges, guiding surfaces, and other key parts prone to wear and deformation, seriously affecting the blade's guiding accuracy and service life. Meanwhile, the existing vertical mill blade structural design lacks a synergistic consideration of material flow characteristics and wear resistance requirements. Some improvement schemes only optimize the guiding structure or add a wear-resistant layer, failing to achieve an organic combination of the two. For example, some blades improve material flow by increasing the guiding angle, but ignore the problem of increased wear caused by the increased force-bearing area of ​​the blade after the angle increases; another scheme uses surface spraying of wear-resistant coatings to improve wear resistance, but the coating's bonding strength with the substrate is insufficient, making it easy to fall off under material impact, and the uniformity of the coating thickness is difficult to control, which may disrupt the normal guiding trajectory of the material. In addition, in the traditional blade processing technology, the forming accuracy of the guiding surface relies on manual grinding or simple mold pressing, making it difficult to ensure the flatness of the blade surface and the consistency of the guiding angle, further aggravating the problems of poor material flow and severe local wear, restricting the overall operating efficiency and stability of the vertical mill equipment. Summary of the Invention

[0003] The purpose of this invention is to provide a material-guiding and wear-resistant optimized structure for vertical mill blades to solve the problems mentioned in the background art.

[0004] To achieve the above object, the present invention provides the following technical solution: A wear-resistant and optimized structure for material guiding of vertical mill blades, including an adjustable base, on both sides of which there are welded a pair of shaft support seats. Between the two shaft support seats, there is a horizontally placed guiding sliding shaft, and between the two shaft support seats, there is a transfer connection of an adjustable screw rod parallel to the guiding sliding shaft. On both sides of the adjustable screw rod and the guiding sliding shaft, there is respectively connected a sliding support column. The upper end of the sliding support column is integrally formed with a transfer seat, and inside the transfer seat, there is a clamping seat transferred through a rotating shaft. The clamping seat is a steel plate frame with a "匚"-shaped cross-section, the concave opening of the clamping seat is the clamping mouth, and the clamping mouths of the two clamping seats respectively clamp both ends of the fan blade. At the upper and lower ends of the clamping seat, there are a pair of symmetrically arranged hydraulic clamping drive boxes.

[0005] Preferably, the hydraulic clamping drive box is internally provided with 3 - 5 oil cavities, and inside the oil cavities, there is a sliding connection of a push rod piston. The push rod piston is connected with a push rod that vertically penetrates through the clamping mouth in the middle of the clamping seat. The multiple oil cavities are connected and communicated, and on one side of the hydraulic clamping drive box, there is a hydraulic pipe joint connected to the oil cavity. The ends of multiple push rods are in contact with the fan blade.

[0006] Preferably, the adjustable screw rod consists of two rod parts with opposite rotation directions of external threads, and the two sliding support columns are respectively screwed to the two different rod parts of the adjustable screw rod. One end of the adjustable screw rod is connected with a crank wrench handle.

[0007] Preferably, the outer wall of the guiding sliding shaft is provided with length scale lines, and the length scale lines are engraved along the axial direction of the guiding sliding shaft.

[0008] Preferably, at the outer end of the rotating shaft where the clamping seat is transferred with the transfer seat, there is a turbine. Below the turbine on the outer wall of the sliding support column, there are a pair of worm support seats. Between the two worm support seats, there is a transfer connection of a worm, and the worm is in transmission engagement with the turbine. One end of the worm is provided with a handwheel.

[0009] Preferably, between the bottoms of the two clamping seats, there is a connecting telescopic rod, and the telescopic direction of the connecting telescopic rod is consistent with the axial direction of the guiding sliding shaft.

[0010] Preferably, the transfer seat is a cylindrical support seat, and the outer wall of the transfer seat is engraved with angular scale lines. On the back of the clamping seat, there is an indicating needle that indicates the angular scale lines.

[0011] The technical effects and advantages of the present invention: By turning the crank wrench handle connected to one end of the adjustable screw rod in the present invention, the two hydraulic clamping drive boxes move along the axial direction of the guiding sliding shaft under the screwing relationship with the two different rod parts on the adjustable screw rod, and can adjust the distance between the two clamping seats to adapt to it according to the length dimension of the processed fan blade, being suitable for use with workpieces of different sizes; In this invention, after placing both ends of the fan blade into the clamping mouths of two clamps, the existing hydraulic equipment is connected via a hydraulic pipe connector. The hydraulic equipment simultaneously supplies oil to multiple oil chambers inside the hydraulic clamping drive box. Under the hydraulic oil pressure, the push rods are pushed out until the ends of multiple push rods abut against the fan blade. The push rods can adaptively press and fit against the surface of the fan blade to fix it. The method of fixing the fan blade is simple and easy to operate. This invention drives the worm gear by turning a handwheel at one end. The worm gear deflects in its meshing relationship with the worm gear, causing the clamping seat to deflect the clamped fan blades. The deflection angle of the clamping seat is determined by observing the value of the angle scale line on the outer wall of the adapter by the indicator needle on the back of the clamping seat, making the machining more precise. The deflection angle of the fan blades is adjusted to match the grinding wheel of the grinding equipment, and the damping boss is polished and ground, making the machining flexible. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 .

[0013] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0015] Figure 4 This is a front view of the structure of the present invention.

[0016] Figure 5 for Figure 4 Sectional view at point BB.

[0017] In the diagram: 1. Adjustable base; 2. Shaft support; 3. Adjustable lead screw; 301. Guide shaft; 3011. Length scale line; 302. Crank lever handle; 3. Adjustable lead screw; 4. Sliding support; 5. Adapter; 501. Angle scale line; 502. Indicator needle; 6. Clamp; 601. Linkage telescopic rod; 7. Hydraulic clamping drive box; 701. Oil chamber; 702. Push rod; 7021. Push rod piston; 703. Hydraulic pipe joint; 8. Fan blade; 801. Damping boss; 9. Turbine; 10. Worm support; 11. Worm; 1101. Handwheel. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] The present invention provides a wear-resistant and material-guiding optimization structure for a vertical mill blade as shown in Figure 1-5 which includes an adjustable base 1. A pair of shaft support seats 2 are welded on both sides of the adjustable base 1. A horizontally arranged guiding sliding shaft 301 is provided between the two shaft support seats 2. A distance-adjusting screw rod 3 parallel to the guiding sliding shaft 301 is转接ed between the two shaft support seats 2. Sliding support columns 4 are respectively connected to both sides of the distance-adjusting screw rod 3 and the guiding sliding shaft 301. A转接 seat 5 is integrally formed at the upper end of the sliding support column 4. A clamping seat 6 is转接ed inside the转接 seat 5 through a rotating shaft. Combining Figure 1 and Figure 4 as shown, the clamping seat 6 is a steel plate frame with a "匚"-shaped cross-section. The concave opening of the clamping seat 6 is the clamping opening. The clamping openings of the two clamping seats 6 respectively clamp both ends of the fan blade 8. A pair of symmetrically arranged hydraulic clamping driving boxes 7 are provided at the upper and lower ends of the clamping seat 6. Combining Figure 4 and Figure 5 as shown, 3-5 oil cavities 701 are opened inside the hydraulic clamping driving box 7. A push rod piston 7021 is slidably fitted inside the oil cavity 701. The push rod piston 7021 is connected to a push rod 702 which vertically penetrates through the middle of the clamping opening of the clamping seat 6. The multiple oil cavities 701 are connected. A hydraulic pipe joint 703 connected to the oil cavity 701 is provided on one side of the hydraulic clamping driving box 7. The hydraulic pipe joint 703 is connected to an existing hydraulic device through a hydraulic pipe. The existing hydraulic device supplies oil to the multiple oil cavities 701 inside the hydraulic clamping driving box 7 simultaneously. Under the pressure of the hydraulic oil, the push rod 702 is pushed out until the ends of the multiple push rods 702抵触 the fan blade 8. The push rod 702 can adaptively press and fit against the surface of the fan blade 8 for fixation. Then, a grinding device is used to polish the damping convex platform 801 on the fan blade 8.

[0020] Combining Figure 1 and Figure 4 as shown, the distance-adjusting screw rod 3 is composed of two rod parts with opposite external thread rotation directions. The two sliding support columns 4 are respectively screwed to the two different rod parts of the distance-adjusting screw rod 3. One end of the distance-adjusting screw rod 3 is connected to a crank wrench handle 302. By turning the crank wrench handle 302 connected to one end of the distance-adjusting screw rod 3, the two hydraulic clamping driving boxes 7 move along the axial direction of the guiding sliding shaft 301 under the screwing relationship with the two different rod parts of the distance-adjusting screw rod 3. The distance between the two clamping seats 6 can be adjusted to adapt to the length dimension of the processed fan blade 8. A length scale line 3011 is provided on the outer wall of the guiding sliding shaft 301, and the length scale line 3011 is engraved along the axial direction of the guiding sliding shaft 301. By observing the positions of the two hydraulic clamping driving boxes 7 on the guiding sliding shaft 301 and combining the markings of the length scale line 3011, the distance length between the two clamping seats 6 can be determined.

[0021] Combining Figure 1and Figure 4 As shown, a turbine 9 is provided at the outer end of the shaft that is rotatably connected to the clamp 6 and the adapter 5. A pair of worm gear supports 10 are provided on the outer wall of the sliding support 4 and below the turbine 9. A worm 11 is rotatably connected between the two worm gear supports 10, and the worm 11 is engaged with the turbine 9. A handwheel 1101 is provided at one end of the worm 11. By turning the handwheel 1101 at one end of the worm 11, the turbine 9 deflects under the engagement relationship with the worm 11, so that the clamp 6 drives the clamped fan blade 8 to deflect. The deflection angle of the fan blade 8 is adjusted to match the grinding wheel of the grinding equipment, and the damping boss 801 is polished. A linkage telescopic rod 601 is connected between the bottoms of the two clamps 6. The extension and retraction direction of the linkage telescopic rod 601 is consistent with the axial direction of the guide slide shaft 301. Under the linkage of the linkage telescopic rod 601, the two clamps 6 are ensured to deflect simultaneously.

[0022] Combination Figure 2 and Figure 3 As shown, the adapter 5 is a cylindrical support, and the outer wall of the adapter 5 is engraved with an angle scale line 501. The back of the clamp 6 is provided with an indicator needle 502 that corresponds to the angle scale line 501. The deflection angle of the clamp 6 is determined according to the value of the angle scale line 501 on the outer wall of the adapter 5 indicated by the indicator needle 502, so as to make the processing more accurate.

[0023] Working principle of the invention: When using the invention, by turning the crank lever 302 connected to one end of the adjusting screw 3, the two hydraulic clamping drive boxes 7 move along the axial direction of the guide slide shaft 301 under the screwed relationship with two different rods on the adjusting screw 3. The distance between the two clamping seats 6 can be adjusted according to the length of the fan blade 8 being processed, which is suitable for processing parts of different sizes. After placing both ends of the fan blade 8 into the clamping mouths of the two clamps 6 respectively, the existing hydraulic equipment is connected through the hydraulic pipe connector 703 via the hydraulic pipe. The hydraulic equipment simultaneously supplies oil to the multiple oil chambers 701 inside the hydraulic clamping drive box 7. Under the hydraulic oil pressure, the push rods 702 are pushed out until the ends of the multiple push rods 702 abut against the fan blade 8. The push rods 702 can adaptively press and fit against the surface of the fan blade 8 for fixation. The method of fixing the fan blade 8 is simple and easy to operate. By turning the handwheel 1101 at one end of the worm gear 11, the turbine 9 deflects under the meshing relationship with the worm gear 11, thereby causing the clamping seat 6 to drive the clamped fan blade 8 to deflect. By observing the value of the angle scale line 501 on the outer wall of the adapter seat 5 indicated by the indicator needle 502 on the back of the clamping seat 6, the deflection angle of the clamping seat 6 is determined, making the processing more precise. The deflection angle of the fan blade 8 is adjusted to match the grinding wheel of the grinding equipment, and the damping boss 801 is polished and ground, making the processing flexible.

[0024] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An optimized structure for wear resistance and material guiding of a vertical mill blade, including an adjustable base (1), characterized in that: On both sides of the adjustable base (1), a pair of shaft support seats (2) are welded. Between the two shaft support seats (2), a horizontally placed guiding sliding shaft (301) is provided, and between the two shaft support seats (2), an adjustable distance screw rod (3) parallel to the guiding sliding shaft (301) is转接 (It should be "rotated" here, assuming it's a misspelling). On both sides of the adjustable distance screw rod (3) and the guiding sliding shaft (301), a sliding support column (4) is respectively connected. At the upper end of the sliding support column (4), a transfer seat (5) is integrally formed, and inside the transfer seat (5), a clamping seat (6) is rotated through a rotating shaft. The clamping seat (6) is a steel plate frame body with a "匚" - shaped cross - section. The notch of the clamping seat (6) is the clamping opening, and the clamping openings of the two clamping seats (6) respectively clamp the two ends of the fan blade (8). At the upper and lower ends of the clamping seat (6), a pair of symmetrically arranged hydraulic clamping drive boxes (7) are provided.

2. The material guiding and wear-resistant optimized structure for a vertical mill blade according to claim 1, characterized in that: Inside the hydraulic clamping drive box (7), 3 - 5 oil cavities (701) are opened. Inside the oil cavity (701), a push rod piston (7021) is slidably fitted, and the push rod piston (7021) is connected with a push rod (702) that vertically penetrates to the middle clamping opening of the clamping seat (6).

3. The material guiding and wear-resistant optimized structure for a vertical mill blade according to claim 1, characterized in that: The adjustable distance screw rod (3) is composed of two rod parts with opposite rotation directions of external threads, and the two sliding support columns (4) are respectively screwed to the two different rod parts of the adjustable distance screw rod (3). One end of the adjustable distance screw rod (3) is connected with a crank wrench handle (302).

4. The material guiding and wear-resistant optimized structure for a vertical mill blade according to claim 1, characterized in that: On the outer wall of the guiding sliding shaft (301), length scale lines (3011) are provided, and the length scale lines (3011) are engraved along the axial direction of the guiding sliding shaft (301).

5. A material guiding and wear-resistant optimized structure for vertical mill blades according to claim 1, characterized in that: At the outer end of the rotating shaft where the clamping seat (6) is rotated with the transfer seat (5), a turbine (9) is provided. On the outer wall of the sliding support column (4) and below the turbine (9), a pair of worm support seats (10) are provided. Between the two worm support seats (10), a worm (11) is rotated, and the worm (11) is in transmission meshing with the turbine (9). One end of the worm (11) is provided with a handwheel (1101).

6. The material guiding and wear-resistant optimized structure for a vertical mill blade according to claim 1, characterized in that: Between the bottoms of the two clamping seats (6), a linkage telescopic rod (601) is connected. The telescopic direction of the linkage telescopic rod (601) is consistent with the axial direction of the guiding sliding shaft (301).

7. A material guiding and wear-resistant optimized structure for a vertical mill blade according to claim 1, characterized in that: The transfer seat (5) is a cylindrical support seat, and on the outer wall of the transfer seat (5), angular scale lines (501) are engraved. On the back of the clamping seat (6), an indicating needle (502) is provided to indicate the angular scale lines (501).

8. A material guiding and wear-resistant optimized structure for a vertical mill blade according to claim 2, characterized in that: The multiple oil cavities (701) are connected, and on one side of the hydraulic clamping drive box (7), a hydraulic pipe joint (703) connected to the oil cavity (701) is provided. The ends of multiple push rods (702) are in contact with the fan blade (8).

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