Blade angle positioning device

Abstract

The utility model relates to the field of turbine blades, and discloses a blade angle positioning device which comprises a base, a U-shaped plate is fixedly mounted on the top surface of the base, a blade body is arranged on the portion, located in the U-shaped plate, of the top surface of the base, and a limiting mechanism abutting against the blade body is arranged on the side of the U-shaped plate. After the positioning pressing rod corresponds to the center position of the wing-shaped top of the blade, the positioning pressing rod abuts against the top of the blade body under the action of resilience force of the compression spring to position and fix the blade body, the electromagnet operates to generate magnetism to be attracted to the bottom of the connecting disc, the stability of the positioning pressing rod is improved, and workers can conveniently machine the blade body; according to the device, the blade body can be effectively positioned and fixed through the positioning pressing rod and the limiting bolt, and meanwhile, the positioning pressing rod is used for fixing the top center of the blade airfoil, so that different types of blade airfoils can be fixed, and the convenience is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of turbine blades, and specifically relates to a blade angle positioning device. Background Art

[0002] Blade positioning devices are usually used in turbines, wind turbines or other turbomachinery to control the angle of the blades. Their main function is to ensure that the blades are in the correct position during processing to enable high-precision and high-efficiency processing. Blade processing positioning devices are widely used in aerospace, wind power, automobile manufacturing and other fields.

[0003] For example, a utility model patent with the announcement number CN216632460U discloses a turbine blade processing and positioning device, comprising a rotating base, a bottom plate is arranged on the top of the rotating base, two curved bottom rods are arranged on the top of the bottom plate, a clamping structure is arranged on the bottom plate, a pre-clamping assembly is arranged on the front of the bottom plate, and the clamping structure comprises a bracket fixedly connected to the back of the bottom plate, a driving assembly arranged on the bracket, a connecting rod fixedly connected to the driving assembly, and a clamping block fixedly connected to the bottom of the connecting rod. The turbine blade processing and positioning device is configured to clamp the turbine blade body by fitting the back of the turbine blade body with the curved bottom rod, and then the front of the turbine blade body is fastened at three points by the clamping block and the clamping block, and the curved bottom rod is fitted to the curved surface of the turbine blade body, and the clamping block and the clamping block with a rubber sleeve are used for front clamping, which does not occupy too much clamping space and can stably clamp the turbine blade body.

[0004] The turbine blade is composed of a blade root and a blade airfoil, which converts the kinetic energy of the fluid into mechanical energy, thereby providing propulsion or power. There are many types of blade airfoils, most of which have different shapes. Although this device can clamp and position the blade body, it cannot clamp and position different types of blade airfoils well when the blade airfoil type changes. For this purpose, a blade angle positioning device is provided. Utility Model Content

[0005] The purpose of the present application is to provide a blade angle positioning device in order to solve the above-mentioned problems.

[0006] The technical solution adopted in the present application is as follows: a blade angle positioning device comprises a base, a U-shaped plate is fixedly installed on the top surface of the base, a blade body is arranged on the top surface of the base inside the U-shaped plate, a limiting mechanism abutting against the blade body is arranged on the side of the U-shaped plate, a mounting plate is fixedly installed on the side of the U-shaped plate, a circular outer shell is fixedly installed on one side of the mounting plate, a positioning pressure rod is movably sleeved on the top surface of the circular outer shell, a connecting disk is fixedly installed on the bottom surface of the positioning pressure rod, a compression spring is arranged on the outer surface of the positioning pressure rod, the top end of the compression spring is fixed to the inner top surface of the circular outer shell, the bottom end of the compression spring is in contact with the top surface of the connecting disk, and an electromagnet is fixedly installed on the bottom surface of the circular outer shell.

[0007] In a preferred embodiment, the limiting mechanism includes a limiting bolt and a circular rubber pad. Two limiting bolts are threadedly connected to the side of the U-shaped plate, and a circular rubber pad is fixedly installed on one end of the two limiting bolts close to each other, and one side of the circular rubber pad is in contact with the root of the blade body.

[0008] In a preferred embodiment, a plurality of fixing holes are formed on the top surface of the base near the corners.

[0009] In a preferred embodiment, a second circular rubber pad is fixedly mounted on one end of the positioning pressure rod away from the connecting plate, and the bottom surface of the second circular rubber pad abuts against the top of the airfoil of the blade body near the middle.

[0010] In a preferred embodiment, a positioning label is fixedly installed on the top surface of the base inside the U-shaped plate.

[0011] In a preferred embodiment, a rubber pad is fixedly mounted on the bottom surface of the base.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0013] In the present application, due to the adoption of the above-mentioned scheme, the user first places the blade body inside the U-shaped plate and aligns the center point of the blade body with the positioning label. At this time, the personnel rotates the positioning pressure rod. When the positioning pressure rod corresponds to the center position of the top of the blade airfoil, the positioning pressure rod abuts against the top of the blade body under the action of the rebound force of the compression spring to position and fix it. The operation of the electromagnet generates magnetism and adsorbs it with the bottom of the connecting disk, thereby improving the stability of the positioning pressure rod and facilitating personnel to perform processing operations on the blade body. The device can effectively position and fix the blade body through the positioning pressure rod and limit bolts. At the same time, the positioning pressure rod fixes the top center of the blade airfoil, so that it can fix different types of blade airfoils, thereby improving convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of this application;

[0015] Figure 2 This is a schematic diagram of the U-shaped plate structure of this application;

[0016] Figure 3 This is a schematic diagram of the internal structure of the circular outer shell of the present application.

[0017] Markings in the figure: 1. Base; 2. U-shaped plate; 3. Blade body; 4. Limiting mechanism; 5. Mounting plate; 6. Circular outer shell; 7. Positioning pressure rod; 8. Connecting plate; 9. Compression spring; 10. Electromagnet; 11. Limiting bolt; 12. Circular rubber pad 1; 13. Fixing hole; 14. Circular rubber pad 2; 15. Positioning label; 16. Rubber pad. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0019] refer to Figure 1 , Figure 2 and Figure 3 The blade angle positioning device includes a base 1, a plurality of fixing holes 13 are opened on the top surface of the base 1 near the corners, and a rubber pad 16 is fixedly installed on the bottom surface of the base 1; through the multiple fixing holes 13, it is convenient for personnel to install and fix the base 1 using bolts.

[0020] refer to Figure 1 , Figure 2 A U-shaped plate 2 is fixedly installed on the top surface of the base 1, a positioning label 15 is fixedly installed on the top surface of the base 1 located inside the U-shaped plate 2, a blade body 3 is arranged on the top surface of the base 1 located inside the U-shaped plate 2, and a limiting mechanism 4 abutting against the blade body 3 is arranged on the side of the U-shaped plate 2; the positioning label 15 is arranged to facilitate personnel to align the center point of the blade body 3 when placing it, so as to facilitate the positioning and installation of the blade body 3. The blade body 3 is composed of a blade root and a blade airfoil. The limiting mechanism 4 is arranged to facilitate the preliminary limiting and fixing of the blade body 3.

[0021] refer to Figure 1 , Figure 2 and Figure 3A mounting plate 5 is fixedly installed on the side of the U-shaped plate 2, and a circular outer shell 6 is fixedly installed on one side of the mounting plate 5. A positioning pressure rod 7 is movably sleeved on the top surface of the circular outer shell 6, and a connecting disk 8 is fixedly installed on the bottom surface of the positioning pressure rod 7. A circular rubber pad 2 14 is fixedly installed on one end of the positioning pressure rod 7 away from the connecting disk 8, and the bottom surface of the circular rubber pad 2 14 abuts against the top of the airfoil of the blade body 3 near the middle position; the positioning pressure rod 7 is provided to facilitate the installation of the connecting disk 8, and the positioning pressure rod 7 is provided to facilitate the subsequent positioning and fixing of the blade body 3.

[0022] refer to Figure 1 , Figure 3 The outer surface of the positioning pressure rod 7 is provided with a compression spring 9, the top end of the compression spring 9 is fixed to the inner top surface of the circular outer shell 6, the bottom end of the compression spring 9 is in contact with the top surface of the connecting disk 8, and the bottom surface of the circular outer shell 6 is penetrated and fixedly installed with an electromagnet 10; the user first pulls the positioning pressure rod 7 upwards, and then places the blade body 3 inside the U-shaped plate 2 and aligns the center point of the blade body 3 with the positioning label 15. At this time, the user releases the positioning pressure rod 7 so that the positioning pressure rod 7 abuts against the top of the blade body 3 to fix it, and then the user starts the electromagnet 10. The electromagnet 10 generates magnetism and adsorbs to the bottom of the connecting disk 8, thereby improving the stability of the positioning pressure rod 7 and enabling it to position and fix the blade body 3.

[0023] refer to Figure 1 , Figure 2 and Figure 3 The limiting mechanism 4 includes a limiting bolt 11 and a circular rubber pad 12. The side of the U-shaped plate 2 is threadedly connected with two limiting bolts 11, and the ends of the two limiting bolts 11 close to each other are fixedly installed with a circular rubber pad 12, and one side of the circular rubber pad 12 is in contact with the root of the blade body 3; by setting the limiting bolt 11 and the circular rubber pad 12, it is convenient to limit and fix the root of the blade body 3, thereby improving its stability inside the U-shaped plate 2.

[0024] The implementation principle of the blade angle positioning device embodiment of the present application is as follows: when the user needs to position and install the blade body 3, the personnel first rotates the positioning pressure rod 7 to one side, and then places the blade body 3 inside the U-shaped plate 2 and aligns the center point of the blade body 3 with the positioning label 15. At this time, the personnel rotates the positioning pressure rod 7 again. When the positioning pressure rod 7 is rotating, the personnel can slightly lift it upward to make it higher than the top of the blade airfoil. When the positioning pressure rod 7 corresponds to the center position of the top of the blade airfoil, the personnel releases the positioning pressure rod 7. The positioning pressure rod 7 abuts against the top of the blade body 3 under the action of the rebound force of the compression spring 9 to position and fix it. Then the personnel starts the electromagnet 10, and the electromagnet 10 generates magnetism and adsorbs the bottom of the connecting disk 8, thereby improving the stability of the positioning pressure rod 7 and facilitating the personnel to perform processing operations on the blade body 3. The device has a simple structure and is easy to operate. The positioning pressure rod 7 and the limit bolt 11 provided can effectively position and fix the blade body 3, thereby improving the convenience of processing the blade body 3. At the same time, the positioning pressure rod 7 fixes the top center of the blade airfoil, so that it can fix different types of blade airfoils, thereby improving convenience.

[0025] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A blade angle positioning device, comprising a base (1), characterized in that: A U-shaped plate (2) is fixedly mounted on the top surface of the base (1); a blade body (3) is arranged on the top surface of the base (1) inside the U-shaped plate (2); a limiting mechanism (4) abutting against the blade body (3) is arranged on the side of the U-shaped plate (2); a mounting plate (5) is fixedly mounted on the side of the U-shaped plate (2); a circular outer shell (6) is fixedly mounted on one side of the mounting plate (5); a positioning rod (7) is movably sleeved on the top surface of the circular outer shell (6); a connecting plate (8) is fixedly mounted on the bottom surface of the positioning rod (7); a compression spring (9) is arranged on the outer surface of the positioning rod (7); the top end of the compression spring (9) is fixed to the inner top surface of the circular outer shell (6); the bottom end of the compression spring (9) contacts the top surface of the connecting plate (8); and an electromagnet (10) is penetrated and fixedly mounted on the bottom surface of the circular outer shell (6).

2. The blade angle positioning device according to claim 1, characterized in that: The limiting mechanism (4) comprises a limiting bolt (11) and a circular rubber pad (12); the side of the U-shaped plate (2) is threadedly connected with two limiting bolts (11), and the ends of the two limiting bolts (11) close to each other are fixedly mounted with a circular rubber pad (12); one side of the circular rubber pad (12) is in contact with the root of the blade body (3).

3. The blade angle positioning device according to claim 1, characterized in that: A plurality of fixing holes (13) are provided on the top surface of the base (1) near the corners.

4. The blade angle positioning device according to claim 1, characterized in that: A second circular rubber pad (14) is fixedly mounted on one end of the positioning pressure rod (7) away from the connecting plate (8), and the bottom surface of the second circular rubber pad (14) abuts against the top of the airfoil of the blade body (3) near the middle.

5. The blade angle positioning device according to claim 1, characterized in that: The top surface of the base (1) is located inside the U-shaped plate (2) and is fixedly mounted with a positioning label (15).

6. The blade angle positioning device according to claim 1, characterized in that: A rubber pad (16) is fixedly mounted on the bottom surface of the base (1).

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