Shot blasting protection device for ring shaft type parts

Abstract

The utility model provides a shot blasting protection device for ring shaft parts. The shot blasting protection device comprises a supporting plate, a sliding block, a supporting rod, square steel and a positioning column, the tops of the square steel are connected with the supporting plate, and the bottoms of the square steel are connected with the bottom corners. The supporting rod penetrates through the supporting plate and is fixedly connected with the supporting plate; the positioning column and the spring are jointly fixed in the supporting rod through the fastening bolt. Sliding grooves are evenly distributed in the supporting plate, nuts are matched with the sliding grooves, and the sliding blocks are fixed in the nuts through screws and are adjusted in the sliding grooves in a sliding mode. According to the shot blasting machine, shot blasting treatment on various parts such as circular rings or shafts can be realized; meanwhile, the sliding blocks can be moved according to the changes of the inner diameters and the outer diameters of the parts, the parts of different sizes are clamped and fixed, and the applicability and the universality of the device are improved.

Description

Technical Field

[0001] The utility model belongs to the field of surface strengthening, and particularly relates to a shot peening protection device for ring shaft parts. Background Technique

[0002] The ring shaft parts for gas turbines belong to the rotor components, and the rotor components are key components in the mechanism. Shot peening can introduce a residual compressive stress field and simultaneously cause favorable changes in the microstructure, which can effectively improve the high-cycle fatigue life of the ring shaft parts, thereby effectively improving the reliability and durability of the gas turbine unit. Content of the Utility Model

[0003] The purpose of the utility model is to solve the clamping protection during the shot peening of ring shaft parts, and a clamping protection device for ring shaft parts with simple operation is proposed.

[0004] A shot peening protection device for ring shaft parts includes a support plate, a slider, a support rod, a square steel and a positioning column; the tops of the multiple square steels are connected to the support plate, and the bottoms of the square steels are connected to the bottom corners; the support rod passes through the support plate and is fixedly connected to the support plate; the positioning column is jointly fixed in the support rod through a fastening bolt and a spring; sliding grooves are evenly distributed on the support plate, the sliding grooves are matched with nuts, and the slider is fixed in the nut through a screw and slides and adjusts in the sliding groove.

[0005] Further, a protective rubber sleeve is sleeved on the outer surface of the slider.

[0006] Further, a lifting lug is installed on the support rod.

[0007] Further, the number of the sliding grooves is D, and the value of D is D≥3, and the number 4 is preferably selected.

[0008] Further, the sliding groove is preferably a T-shaped groove.

[0009] Further, the support plate, the support rod and the square steel are made of economic steel.

[0010] Further, there are M groups of the square steel and the bottom corners, M is a positive integer, and M≥3.

[0011] Further, the bottom corner is connected to the shot peening equipment through a bolt.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. The utility model can realize the shot peening treatment of various types of parts such as ring-shaped or shaft-shaped parts; at the same time, the slider can be moved according to the change of the inner and outer diameters of the parts to clamp and fix different-sized parts, increasing the applicability and versatility of the utility model.

[0014] 2. Except for the spring, lifting lugs, and bolts, the rest of the present utility model is made of steel plates, which increases durability. The clamping protection device is easy to operate and maintain. The design and use of the clamping protection device not only increase versatility but also reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the front view of the present utility model;

[0016] Figure 2 is the axonometric view of the present utility model.

[0017] In the figure: 1. Support plate, 2. Sliding groove, 3. Rubber sheet, 4. Nut, 5. Screw, 6. Slide block, 7. Protective rubber sleeve, 8. Lifting lug, 9. Support rod, 10. Square steel, 11. Reinforcing rib, 12. Bottom corner, 13. Positioning column, 14. Tightening bolt, 15. Spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following further describes the present utility model in conjunction with the drawings.

[0019] As Figure 1 - Figure 2 shown, a shot peening protection device for ring shaft parts includes a support plate 1, a slide block 6, a support rod 9, a square steel 10, and a positioning column 13; the tops of the plurality of square steels 10 are connected to the support plate 1, and the bottoms of the square steels 10 are connected to the bottom corners 12; the support rod 9 passes through the support plate 1 and is fixedly connected to the support plate 1; the positioning column 13 and the spring 15 are jointly fixed in the support rod 9 through a tightening bolt 14; the support plate 1 is evenly provided with sliding grooves 2, the sliding grooves 2 are fitted with nuts 4, the slide block 6 is fixed in the nut 4 through a screw 5 and slides and adjusts in the sliding grooves 2, the number of the sliding grooves 2 is D, the value of D is D≥3, preferably the number is 4, and the sliding grooves 2 are preferably T-shaped grooves. The parts together form a shot peening clamping protection device for ring shaft parts. The device is hoisted on the equipment and connected to the equipment by the bottom corners 12. At this time, a single part is placed on the device. Through the movement and adjustment of the slide block 6 and the nut 4, one or two groups of slide blocks 6 are used to limit and fix the outer surface or the outer surface and the inner surface of the part. Shot peening treatment is carried out on the inner surface or the outer surface of the part as required.

[0020] Scales are marked on the sliding grooves, and the unit is defaulted to millimeters. The zero point of the scale is at the center of the circle of the support plate. The sliding grooves 2 are fitted with T-shaped nuts 4. In this implementation, the heights of the slide blocks 6 are set to two types: 15 mm and 25 mm, the diameter is 15 mm, and there are M groups of the bottom corners 12 and the square steels 10, and M takes the positive integer 6.

[0021] A protective rubber sleeve 7 is sleeved on the outer surface of the slide block 6.

[0022] A lifting lug 8 is installed on the support rod 9.

[0023] For parts such as the support plate 1, screw 5, slider 6, support rod 9, square steel 10, reinforcing rib 11, bottom angle 12, positioning column 13, etc., economical steel is selected, and commonly used Q235 and 45 steel are recommended, and the yield strength of the material is not less than 235 MPa.

[0024] Working principle: When the present utility model is in use, the preparation work of tools and lifting appliances should be completed in advance, and after the test piece is qualified by shot peening, the protection device of the present utility model should be prepared. Place the ring-shaped or shaft-shaped parts on the protection device and use the slider 6 for restriction and fixation. For parts that need to be shot peened on the inner surface, a rotary spray gun or a bent spray gun can be selected according to needs; for parts that need to be shot peened on the outer surface, a corresponding straight spray gun or bent spray gun can be selected according to needs. After the shot peening treatment is completed, finally remove the parts and the present utility model from the machine tool and clean them for standby.

[0025] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A shot peening protection device for ring shaft parts, characterized in that: The invention comprises a support plate (1), a slider (6), a support rod (9), a square steel (10) and a positioning column (13); the tops of the plurality of square steels (10) are connected to the support plate (1), and the bottoms of the square steels (10) are connected to the bottom angles (12); the support rod (9) passes through the support plate (1) and is fixedly connected to the support plate (1); the positioning column (13) is fixed in the support rod (9) by means of a fastening bolt (14) and a spring (15); sliding grooves (2) are evenly distributed on the support plate (1), the sliding grooves (2) are matched with nuts (4), the sliding blocks (6) are fixed in the nuts (4) by means of screws (5), and are slidably adjusted in the sliding grooves (2).

2. A shot peening protection device for annular shaft parts according to claim 1, characterized in that: The outer surface of the sliding block (6) is covered with a protective rubber sleeve (7).

3. The shot peening protection device for annular shaft parts according to claim 1 is characterized in that: A lifting lug (8) is installed on the support rod (9).

4. The shot peening protection device for annular shaft parts according to claim 1 is characterized in that: The number of the sliding grooves (2) is D, and the value of D is D≥3, and the number 4 is preferably selected.

5. A shot peening protection device for annular shaft parts according to claim 4, characterized in that: The sliding groove (2) is preferably a T-shaped groove.

6. The shot peening protection device for annular shaft parts according to claim 1 is characterized in that: The support plate (1), support rod (9) and square steel (10) are made of economical steel.

7. The shot peening protection device for annular shaft parts according to claim 1 is characterized in that: The square steel (10) and the bottom angle (12) have a total of M groups, M is a positive integer, and M≥3.

8. The shot peening protection device for annular shaft parts according to claim 7 is characterized in that: The bottom corner (12) is connected to the shot peening equipment via bolts.

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