Blade angle adjusting device

Abstract

The utility model belongs to the technical field of blade positioning equipment, and discloses a blade angle adjusting device which comprises a bottom plate of a disc-shaped structure, a cover plate is fixedly installed in the middle of the lower end of the bottom plate through bolts, a plurality of universal wheels are fixedly installed at the lower end of the bottom plate at equal intervals along the circle center, and adjusting rods are rotationally connected between the cover plate and the universal wheels. A connecting seat is fixedly mounted at the top of the adjusting rod, and an adjusting jacking tool is rotationally connected to the outer wall of the upper end of the adjusting rod; the first air cylinders are fixedly installed on the two sides of the upper surface of the bottom plate, and the ends of output shafts of the first air cylinders are hinged to one side of the adjusting jacking tool; according to the blade angle adjusting device, when a blade is installed, the blade is firstly clamped through the clamping mechanism, and after clamping, one side of the adjusting jacking tool is driven to move up and down through stretching or returning of the first air cylinder, so that the angle of the adjusting rod is changed, and the blade angle adjusting device has the advantages that all-directional adjustment is achieved; and the mounting efficiency of the blade is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of blade installation equipment, in particular to a blade angle adjustment device. Background Art

[0002] Aero-engine is a highly complex and sophisticated thermal machine. As the heart of an aircraft, it is not only the driving force for the flight of the aircraft, but also an important driving force for the development of aviation. Every important change in the history of human aviation is closely related to the technological progress of aero-engines. Gas turbine is an internal combustion power machine that uses continuous flow of gas as the working fluid to drive the impeller to rotate at high speed, converting the energy of the fuel into useful work. It is a rotating impeller thermal engine. The gas turbine blade is one of the core components of the gas turbine and is crucial to the performance of the entire machine.

[0003] In the prior art, blade installation usually involves first moving the blade to the desired installation location, then aligning the holes, and finally installing the blade. During the aligning process, the blade angle needs to be adjusted frequently, and the blade angle adjustment requires multiple adjustments with the aid of lifting equipment, resulting in low installation efficiency. In order to solve the above problems, a blade angle adjustment device is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a blade angle adjustment device in order to solve the above problem.

[0005] The technical solution adopted by the utility model is as follows: The blade angle adjustment device comprises:

[0006] The bottom plate is a disc-shaped structure, a cover plate is fixedly installed in the middle of the lower end of the bottom plate by bolts, a plurality of universal wheels are fixedly installed at the lower end of the bottom plate at equal distances along the center of the circle, an adjusting rod is rotatably connected between the cover plate and the universal wheel, a connecting seat is fixedly installed on the top of the adjusting rod, and an adjusting top tool is rotatably connected to the outer wall of the upper end of the adjusting rod;

[0007] A first cylinder is fixedly mounted on both sides of the upper surface of the bottom plate, and an end of an output shaft of the first cylinder is hinged to one side of the adjusting top tool;

[0008] The clamping mechanism is fixedly installed on the top of the connecting seat.

[0009] Through the above technical solution, when installing the blade, the blade is first clamped by the clamping mechanism. After clamping, the first cylinder is extended or returned to drive one side of the adjusting top tool to move up and down, so that the adjusting rod changes its angle, thereby adjusting the angle of the blade. It has 360-degree all-round adjustment, which greatly improves the installation efficiency of the blade.

[0010] In a preferred embodiment, a plurality of connecting rods are fixedly mounted on the bottom of the base plate, a second cylinder is fixedly mounted on the bottom of the connecting rods, and an anti-slip pad is fixedly mounted on the end of the output shaft of the second cylinder.

[0011] Through the above technical solution, during the blade installation process, the device is moved up and down by extending or returning the second cylinder, and the stability of the device is improved by providing an anti-slip pad.

[0012] In a preferred embodiment, the clamping mechanism is fixedly installed with a side plate near one end of its output shaft, a slide rail is fixedly installed on the front side of the side plate, and two clamping blocks are slidably connected to the outer wall of the slide rail. A rotating disk is fixedly installed on the end of the output shaft of the clamping mechanism, and transmission rods are hinged on both sides of the rotating disk, and the two transmission rods are respectively hinged to the outer wall of the rear side of the clamping block.

[0013] Through the above technical solution, the rotating disk rotates to drive one side of the two transmission rods to move along its trajectory. Since the other side of the transmission rod is restricted by the block, the two transmission rods pull the two blocks to move toward each other to clamp the blades.

[0014] In a preferred embodiment, the number of the connecting rods is four, which are evenly arranged along the center of the lower wall of the base plate and staggered by 45 degrees from the four pressed-in universal ball transfer wheels.

[0015] In a preferred embodiment, an umbrella-shaped boss is provided at the upper end of the adjusting rod, and the upper wall of the boss is in contact with the lower wall of the adjusting top tool.

[0016] In a preferred embodiment, the first cylinder, the second cylinder and the clamping mechanism are all controlled by PLC.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are as follows: the present invention proposes a blade angle adjustment device.

[0018] When installing the blades, the blades are first clamped by the clamping mechanism. After clamping, the first cylinder is extended or returned to drive one side of the adjusting top tool to move up and down, so that the adjusting rod changes its angle, thereby adjusting the angle of the blade. It has 360-degree all-round adjustment, which greatly improves the installation efficiency of the blades. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a front view of the adjustment mechanism in the utility model;

[0021] Figure 3 It is a cross-sectional view of the adjustment mechanism in the utility model;

[0022] Figure 4 It is a structural schematic diagram of the clamping mechanism in the utility model.

[0023] Markings in the figure: 1-bottom plate; 2-cover plate; 3-universal roller; 4-adjusting rod; 5-connecting seat; 6-first cylinder; 7-adjusting top tool; 8-anti-slip pad; 9-connecting rod; 10-second cylinder; 11-clamping mechanism; 12-side plate; 13-slide rail; 14-block; 15-rotating disk; 16-transmission rod. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The following will be combined Figure 1-4 The blade angle adjustment device of the embodiment of the utility model is described in detail.

[0026] Example:

[0027] The blade angle adjustment device comprises:

[0028] The bottom plate 1 is a disc-shaped structure. A cover plate 2 is fixedly installed at the middle of the lower end of the bottom plate 1 by bolts. A plurality of universal wheels 3 are fixedly installed at the lower end of the bottom plate 1 at equal distances along the center of the circle. An adjusting rod 4 is rotatably connected between the cover plate 2 and the universal wheel 3. A connecting seat 5 is fixedly installed on the top of the adjusting rod 4. An adjusting top tool 7 is rotatably connected to the outer wall of the upper end of the adjusting rod 4. An umbrella-shaped boss is arranged on the upper end of the adjusting rod 4, and the upper wall of the boss is in contact with the lower wall of the adjusting top tool 7.

[0029] The first cylinder 6 is fixedly mounted on both sides of the upper surface of the bottom plate 1. The output shaft end of the first cylinder 6 is hinged to one side of the adjusting top tool 7. When the blade is installed, the blade is first clamped by the clamping mechanism 1. After clamping, the first cylinder 6 extends or returns to drive one side of the adjusting top tool 7 to move up and down, so that the adjusting rod 4 changes its angle, thereby adjusting the angle of the blade. It has 360-degree all-round adjustment, which greatly improves the installation efficiency of the blade;

[0030] The clamping mechanism 11 is fixedly mounted on the top of the connecting seat 5. A side plate 12 is fixedly mounted near one end of the output shaft of the clamping mechanism 11. A slide rail 13 is fixedly mounted on the front side of the side plate 12. Two clamping blocks 14 are slidably connected to the outer wall of the slide rail 13. A rotating disk 15 is fixedly mounted on the output shaft end of the clamping mechanism 11. Transmission rods 16 are hinged on both sides of the rotating disk 15. The two transmission rods 16 are respectively hinged to the outer wall of the rear side of the clamping block 14. The rotating disk 15 rotates to drive one side of the two transmission rods 16 to move along its trajectory. Since the other side of the transmission rod 16 is restricted by the clamping block 14, the two transmission rods 16 pull the two clamping blocks 14 to move toward each other to clamp the blades.

[0031] A plurality of connecting rods 9 are fixedly installed at the bottom of the base plate 1. There are four connecting rods 9, which are evenly arranged along the center of the lower wall of the base plate 1 and are staggered by 45° with the four pressed-in universal ball casters 3. A second cylinder 10 is fixedly installed at the bottom of the connecting rod 9. The first cylinder 6, the second cylinder 10 and the clamping mechanism 11 are all controlled by PLC. An anti-skid pad 8 is fixedly installed at the end of the output shaft of the second cylinder 10. During the installation of the blades, the equipment is moved up and down by extending or returning the second cylinder 10. At the same time, the stability of the equipment is improved by providing the anti-skid pad 8.

[0032] Working principle:

[0033] When installing the blades, the blades are first clamped by the clamping mechanism 1. After clamping, the first cylinder 6 extends or returns to drive one side of the adjusting top tool 7 to move up and down, so that the adjusting rod 4 changes its angle, thereby adjusting the angle of the blades. It has 360-degree all-round adjustment, which greatly improves the installation efficiency of the blades.

[0034] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. 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 invention.

Claims

1. Blade angle adjustment device, characterized in that: include: A base plate (1) is a disc-shaped structure, a cover plate (2) is fixedly mounted on the middle part of the lower end of the base plate (1) by means of bolts, a plurality of universal wheels (3) are fixedly mounted on the lower end of the base plate (1) at equal intervals along the center of the circle, an adjustment rod (4) is rotatably connected between the cover plate (2) and the universal wheels (3), a connecting seat (5) is fixedly mounted on the top of the adjustment rod (4), and an adjustment top tool (7) is rotatably connected to the outer wall of the upper end of the adjustment rod (4); A first cylinder (6) is fixedly mounted on both sides of the upper surface of the base plate (1), and an end of an output shaft of the first cylinder (6) is hingedly connected to one side of an adjusting top tool (7); The clamping mechanism (11) is fixedly mounted on the top of the connecting seat (5).

2. The blade angle adjustment device according to claim 1, characterized in that: A plurality of connecting rods (9) are fixedly mounted on the bottom of the base plate (1), a second cylinder (10) is fixedly mounted on the bottom of the connecting rod (9), and an anti-slip pad (8) is fixedly mounted on the end of the output shaft of the second cylinder (10).

3. The blade angle adjustment device according to claim 1, characterized in that: The clamping mechanism (11) is fixedly mounted with a side plate (12) near one end of its output shaft, a slide rail (13) is fixedly mounted on the front side of the side plate (12), and two clamping blocks (14) are slidably connected to the outer wall of the slide rail (13). A rotating disk (15) is fixedly mounted on the end of the output shaft of the clamping mechanism (11), and transmission rods (16) are hinged on both sides of the rotating disk (15), and the two transmission rods (16) are respectively hinged to the outer wall of the rear side of the clamping block (14).

4. The blade angle adjustment device according to claim 2, characterized in that: The number of the connecting rods (9) is four, and they are evenly arranged along the center of the lower wall of the bottom plate (1) and staggered by 45 degrees from the four universal wheels (3).

5. The blade angle adjustment device according to claim 1, characterized in that: An umbrella-shaped boss is provided at the upper end of the adjusting rod (4), and the upper wall of the boss is in contact with the lower wall of the adjusting top tool (7).

6. The blade angle adjustment device according to claim 1, characterized in that: The first cylinder (6), the second cylinder (10) and the clamping mechanism (11) are all controlled by PLC.

Images