Novel sand blasting blade

Abstract

The utility model discloses a novel sand blasting blade, which relates to the technical field of turbine sand blasting machines and comprises a sand blasting blade, the sand blasting blade comprises a blade plate, blade seats are arranged at two ends of the blade plate, the blade plate and the blade seats at the two ends are respectively integrated, R angles at two ends between the blade plate and the blade seats are R5, and the R angles between the blade plate and the blade seats are increased from R2 to R5, the production cycle yield exceeds 6000 tons or above, casting defects such as shrinkage cavities, shrinkage porosity and cracks are avoided, the service life of the sand blasting blade with the improved R angle is prolonged by one time or above compared with that of a sand blasting blade with the unimproved R angle, the production cost is saved in production, the labor intensity of workers is obviously reduced, the production process requirement for one-time fixed repair of a production line in a half month is met, and the production efficiency is improved. And meanwhile, daily blade accident emergency repair is avoided, the accident rate is reduced, smooth production is guaranteed, and the productivity is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of turbine sandblasters, and particularly relates to a new type of sandblasting blade. Background Art

[0002] The blade is the main consumable of the EPS production line of Angang. The medium conveyed by the turbine blade is a mixed liquid of cast steel sand and rust inhibitor. It is installed on the turbine of the EPS process section. The rust inhibitor mixed liquid and steel sand ejected from the sandblasting port are hit on the surface of the steel plate by driving the blade to rotate through the turbine impeller to clean the scale. During normal production, the rotational speed of the turbine is 2800RMP. During the production practice process, blade fracture and insufficient wear resistance often occur, and the wear is extremely uneven. As shown in the attached... Figure 1 In the attached... Figure 1 The attached figure shows the blade produced on the current EPS production line of Angang. It reflects that the inner surface of the arc at the R2 edge connected by the 90° angle on the left side is worn particularly severely, resulting in problems such as high labor intensity for workers to replace the blade, many equipment accidents caused by blade fracture, and large blade consumption. The method of increasing the R angle of the turbine blade can disperse the stress concentration so that no crack appears at the R angle of the blade, and the stress can be dispersed along the normal direction of the arc by a large force. According to statistics, the working cycle of the blade before correction is only 6 - 8 days. In actual production, blade fracture and insufficient wear resistance often occur, and the wear is extremely uneven. It is reflected that the inner surface of the arc at the R2 edge connected by the 90° angle on the left side is worn particularly severely. When checking the actual production output, it is about 3000 tons. The wear resistance of the blade is insufficient, and the replacement frequency is high. It takes about 1 hour for 3 people to replace a set of blades. The labor intensity of replacing the blade is high, and the production cost cannot be reduced. Content of the Utility Model

[0003] The main purpose of the utility model is to provide a new type of sandblasting blade, which can effectively solve the problems in the background art.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A new type of sandblasting blade includes a sandblasting blade. The sandblasting blade includes a blade plate. Both ends of the blade plate are provided with blade seats. The blade plate and the blade seats at both ends are integrally formed. The R angles at both ends between the blade plate and the blade seats are R5.

[0006] Preferably, a blocking block is fixed at one end of one of the blade seats away from the blade plate. A first fixing block is arranged on one side of the blocking block. A second fixing block is arranged on the side of the first fixing block away from the blocking block. The first fixing block and the second fixing block are integrally formed with the blade seat respectively. A pushing block is arranged between the first fixing block and the second fixing block.

[0007] Preferably, push rods are fixed at both ends of the abutting block close to one side of the fixed block one. Rod grooves are respectively bored through the positions of the fixed block one where the push rods are located. The push rods respectively penetrate and communicate with the rod grooves with matching positions, and the inner diameter sizes of the rod grooves respectively match the outer diameter sizes of the push rods.

[0008] Preferably, one ends of the rod grooves passing through the push rods are respectively fixedly connected to the side walls of the push blocks close to each other.

[0009] Preferably, two bolt grooves are bored in the side wall of the fixed block two. Extrusion bolts are respectively threadedly connected inside the bolt grooves. One ends of the extrusion bolts passing through the bolt grooves respectively contact the side walls of the push blocks close to each other.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. The R angle between the vane and the vane seat is increased from R2 to R5. The production output per cycle exceeds one ton. There are no casting defects such as shrinkage cavities, shrinkage porosity, and cracks. After improving the R angle, the service life of the sandblasting vane is increased by more than one time compared with that of the sandblasting vane without improving the R angle. In production, not only the production cost is saved, but also the labor intensity of workers is significantly reduced, meeting the production process requirements of the semi-monthly scheduled repair of the production line. At the same time, the emergency repair of daily vane accidents is avoided, the accident rate is reduced, the production runs smoothly, and the production capacity is improved.

[0012] 2. The abutting block, the fixed block one, the fixed block two, and the push block are all embedded in the slot of the impeller body. By screwing the extrusion bolt, the end of the extrusion bolt passing through the bolt groove can push the push block out towards one end close to the fixed block one. The push block can drive the abutting block to move together through the push rod, so that the abutting block can closely fit in the limiting retaining groove in the slot of the wheel body. When the sandblasting vane rotates centrifugally for a long time and wear occurs between the abutting block and the end of the limiting retaining groove, rotate the extrusion bolt, so that the abutting block can move forward again and contact the inner side wall of the limiting retaining groove, eliminating the gap caused by wear, increasing the service life of the sandblasting vane, and avoiding the situation that the sandblasting vane shakes during centrifugal rotation due to the gap generated by wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic structural diagram of the vane produced in the current EPS production line of Angang Steel;

[0014] Figure 2 It is a schematic structural diagram of a new type of sandblasting vane of the utility model;

[0015] Figure 3 It is a schematic structural diagram of the abutting block, the fixed block one, the fixed block two, and the push block of a new type of sandblasting vane of the utility model;

[0016] Figure 4Exploded structural schematic diagram of the cross-section of the fixing block 1 and fixing block 2 of a new sandblasting blade of the present utility model.

[0017] In the figure: 1. Sandblasting blade; 2. Blade plate; 3. Blade seat; 4. Block; 5. Fixing block 1; 6. Fixing block 2; 7. Pushing block; 8. Push rod; 9. Rod groove; 10. Bolt groove; 11. Extrusion bolt. Specific implementation mode

[0018] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation modes.

[0019] As Figures 1-4 shown, a new type of sandblasting blade includes a sandblasting blade 1. The sandblasting blade 1 includes a blade plate 2. Blade seats 3 are provided at both ends of the blade plate 2. The blade plate 2 and the blade seats 3 at both ends are integrally formed, and the R angles at both ends between the blade plate 2 and the blade seats 3 are R5.

[0020] Specifically, a block 4 is fixed to one end of a blade seat 3 away from the blade plate 2. A fixing block 1 5 is arranged on one side of the block 4. A fixing block 2 6 is provided on the side of the fixing block 1 5 away from the block 4. The fixing block 1 5 and the fixing block 2 6 are integrally formed with the blade seat 3 respectively, and a pushing block 7 is arranged between the fixing block 1 5 and the fixing block 2 6.

[0021] Specifically, push rods 8 are fixed to both ends of the side of the block 4 close to the fixing block 1 5. Rod grooves 9 are respectively drilled through at the positions of the fixing block 1 5 where the push rods 8 are located. The push rods 8 respectively penetrate and communicate with the rod grooves 9 with matching positions, and the inner diameter dimensions of the rod grooves 9 respectively match the outer diameter dimensions of the push rods 8.

[0022] Specifically, one ends of the rod grooves 9 passing through the push rods 8 are fixedly connected to the side walls of the pushing block 7 close to them.

[0023] Specifically, two bolt grooves 10 are drilled in the side wall of the fixing block 2 6. Extrusion bolts 11 are respectively threadedly connected inside the bolt grooves 10. One ends of the extrusion bolts 11 passing through the bolt grooves 10 are respectively in contact with the side walls of the pushing block 7 close to them

[0024] Working principle: The R angle between the blade plate 2 and the blade seat 3 is increased from R2 to R5. The production output per use cycle exceeds 6000 tons. There are no casting defects such as shrinkage porosity, shrinkage and cracks. After improving the R angle, the service life of the sandblasting blade 1 is increased by more than one time compared with that of the sandblasting blade 1 without improving the R angle. In production, not only the production cost is saved, but also the labor intensity of workers is significantly reduced, meeting the production process requirements of once semi-monthly scheduled maintenance of the production line. At the same time, it avoids the emergency repair of daily blade accidents, reduces the accident rate, ensures the smooth progress of production, and improves the production capacity;

[0025] The abutting block 4, the first fixing block 5, the second fixing block 6, and the pushing block 7 are all embedded in the slot of the impeller body. By screwing the extrusion bolt 11, the end of the bolt passing through the bolt groove 10 can push the pushing block 7 out towards the end close to the first fixing block 5. The pushing block 7 can drive the abutting block 4 to move together through the push rod 8, so that the abutting block 4 can closely fit in the limit retaining groove in the wheel body slot. When the sandblasting blade 1 rotates centrifugally for a long time and the abutting block 4 and the end of the limit retaining groove are worn, rotate the extrusion bolt 11, so that the abutting block 4 can move forward again and contact the inner side wall of the limit retaining groove, eliminating the gap caused by wear, increasing the service life of the sandblasting blade 1, and avoiding the situation of shaking when the sandblasting blade 1 rotates centrifugally due to the gap caused by wear.

[0026] The circuits, electronic components, and control modules involved are all prior arts and can be fully realized by those skilled in the art without further elaboration. The content protected by the present utility model does not involve improvements to software and methods either.

[0027] The above shows and describes the basic principles, main features, and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A novel sandblasting blade, comprising a sandblasting blade (1), characterized in that: The sandblasting blade (1) comprises a blade plate (2), and blade seats (3) are provided at both ends of the blade plate (2). The blade plate (2) is integral with the blade seats (3) at both ends, and the R angles at both ends between the blade plate (2) and the blade seats (3) are R5.

2. A novel sandblasting blade according to claim 1, characterized in that: A stop block (4) is fixed to one end of one of the impeller seats (3) away from the impeller plate (2); a fixing block 1 (5) is arranged on one side of the stop block (4); a fixing block 2 (6) is arranged on the side of the fixing block 1 (5) away from the stop block (4); the fixing block 1 (5) and the fixing block 2 (6) are respectively integrated with the impeller seat (3); and a push block (7) is arranged between the fixing block 1 (5) and the fixing block 2 (6).

3. A novel sandblasting blade according to claim 2, characterized in that: Push rods (8) are fixed at both ends of the stop block (4) close to the fixed block (5), and rod grooves (9) are bored through the fixed block (5) at the position of the push rod (8). The push rods (8) are respectively connected to the rod grooves (9) at the positions that match the positions, and the inner diameters of the rod grooves (9) match the outer diameters of the push rods (8).

4. A novel sandblasting blade according to claim 3, characterized in that: The rod groove (9) passes through one end of the push rod (8) and is fixedly connected to the side wall close to the push block (7).

5. A novel sandblasting blade according to claim 2, characterized in that: Two bolt grooves (10) are cut on the side wall of the second fixing block (6), and the interior of each of the bolt grooves (10) is threadedly connected with a squeeze bolt (11), and one end of the squeeze bolt (11) passes through the bolt groove (10) and contacts the side wall close to the push block (7).

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