Large blade static test loading device

Abstract

The utility model discloses a loading device for a large blade static test, and belongs to the technical field of static tests. Comprising a vertical beam ground foot fixedly installed on a workshop ground rail, a counter-force support fixedly installed on the vertical beam ground foot, and an auxiliary frame fixedly installed on the counter-force support and used for assisting stabilization. The clamping mechanism is movably arranged on one side of the counter-force bracket and is used for clamping a blade; and the loading mechanism is fixedly arranged on the counter-force bracket and is used for loading the clamping mechanism. According to the large blade static test loading device, the height-adjustable reversing mechanism is arranged, and the counter-force bracket can be rotated through the multi-groove vertical beam foot margin, so that static test loading devices with different specifications can be assembled according to the loading requirements of large blade static test, and the test requirements of blades with different sizes are met; the cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of static testing, in particular to a large blade static testing loading device. Background Art

[0002] Blade static testing is the process of subjecting blades to static loads. In this test, the blades are exposed to specific static loads to simulate the forces under actual use conditions. This test can be used to evaluate the performance and stability of the blades when subjected to static loads.

[0003] In traditional static tests, blades are loaded by pulling them with ropes through multiple sets of support frames sliding in the workshop and loading mechanisms on the support frames. During the test, the loading height of the ropes remains unchanged. When faced with blades of different sizes, the loading height or loading angle cannot be adjusted. Therefore, the corresponding working environment and equipment need to be replaced, which increases costs for the tester.

[0004] Therefore, a large blade static test loading device is provided to solve the above problems. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The utility model provides a large blade static test loading device, aiming to solve the problem in the background technology that a traditional large blade test device is not easy to adjust and cannot meet the test requirements of blades of different sizes.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a large blade static test loading device, comprising a vertical beam anchor fixedly installed on a workshop floor rail, a reaction support fixedly installed on the vertical beam anchor, an auxiliary frame fixedly installed on the reaction support for assisting stability, a clamping mechanism movable on one side of the reaction support for clamping the blade, and a loading mechanism fixedly installed on the reaction support for loading the clamping mechanism.

[0009] In order to change the angle of rope loading, the reaction support has a fixed pulley at one end away from the vertical beam base, and a reversing mechanism for adjusting the loading angle is fixedly mounted on the reaction support, so that the loading angle can be adjusted for blades of different sizes.

[0010] Preferably, in order to clamp the blades, the clamping mechanism includes clamping blocks that move closer to or away from each other, a fixing frame fixed on the side of the clamping blocks that are away from each other, and locking rods with both ends respectively passing through the two fixing frames, and the ends of the locking rods are threaded with nuts that contact a side of the fixing frame away from the clamping blocks.

[0011] Preferably, in order to provide loading power for the clamping mechanism, the loading mechanism includes a hydraulic winch fixedly mounted on the reaction support near the vertical beam footing, a rope with one end wound on the hydraulic winch, and a loading chain fixed between the other end of the rope and the clamping mechanism.

[0012] Preferably, in order to prevent the loading chain and the clamping mechanism from rotating, the rope is a non-rotating wire rope.

[0013] Preferably, in order to facilitate the adjustment of the height of the reversing wheel on the reaction force bracket, the reversing mechanism includes a retaining frame mounted on the reaction force bracket by bolts and a reversing wheel rotatably mounted on the retaining frame.

[0014] Preferably, in order to enable the clamped blades to be loaded by the rope, one end of the loading chain away from the rope is fixedly mounted on a side of the fixing frame away from the clamping block.

[0015] Preferably, in order to improve the loading stability and facilitate the adjustment of the loading direction of the rope, the movable end of the rope is passed around the top of the fixed pulley and the bottom of the reversing wheel in sequence.

[0016] Preferably, in order to allow the reaction force bracket to be rotatably adjusted, a plurality of positioning grooves for connecting to the workshop floor rails are symmetrically provided on the vertical beam feet.

[0017] (III) Beneficial effects

[0018] The large-blade static test loading device is provided with a reversing mechanism that can adjust the height and can rotate the reaction force bracket through a multi-slot vertical beam base. Therefore, different specifications of the static test loading devices can be assembled according to the loading requirements of the large-blade static test, thereby meeting the testing requirements of blades of different sizes and saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a large blade static test loading device;

[0020] Figure 2 It is a three-dimensional structural schematic diagram of a large blade static test loading device;

[0021] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0022] Figure 4 It is a three-dimensional structural schematic diagram of a clamping mechanism in a large blade static test loading device;

[0023] Figure 5The figure is a schematic diagram of the structure of a reversing mechanism in a large blade static test loading device.

[0024] In the figure:

[0025] 1. Vertical beam anchor; 11. Positioning groove; 2. Reaction bracket; 21. Fixed pulley;

[0026] 22. Reversing mechanism;

[0027] 221, retaining frame; 222, reversing wheel;

[0028] 3. Auxiliary frame;

[0029] 4. Loading mechanism;

[0030] 41. Hydraulic winch; 42. Rope; 43. Loading chain;

[0031] 5. Clamping mechanism;

[0032] 51. Clamping block; 52. Fixing frame; 53. Locking rod. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0034] Example 1

[0035] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The utility model provides a technical solution: a large blade static test loading device, including a vertical beam anchor 1 fixedly installed on a workshop floor rail, a reaction support 2 fixedly installed on the vertical beam anchor 1, an auxiliary frame 3 fixedly installed on the reaction support 2 for assisting stability, a clamping mechanism 5 movable on one side of the reaction support 2 for clamping the blade, and a loading mechanism 4 fixedly installed on the reaction support 2 for loading the clamping mechanism 5.

[0036] The reaction support 2 has a fixed pulley 21 at one end away from the vertical beam foot 1 , and a reversing mechanism 22 for adjusting the loading angle is fixedly mounted on the reaction support 2 .

[0037] When in use, the blades are clamped by the clamping mechanism 5, and the whole is installed on the workshop ground rail through the vertical beam anchor 1. The loading mechanism 4 on the reaction force bracket 2 loads the blades by driving the clamping mechanism 5, and then the test is carried out.

[0038] Specifically, the clamping mechanism 5 includes a clamping block 51 that moves toward or away from each other, a fixed frame 52 fixed on the side of the clamping block 51 that is away from each other, and a locking rod 53 with both ends respectively passing through the two fixing frames 52, and a nut that is screwed on the end of the locking rod 53 and contacts with a side of the fixing frame 52 away from the clamping block 51; by tightening the nuts at both ends of the locking rod 53, the fixing frame 52 drives the clamping block 51 to move closer to each other, thereby clamping the blade.

[0039] The loading mechanism 4 includes a hydraulic winch 41 fixedly installed on the reaction support 2 near the vertical beam base 1, a rope 42 with one end wound on the hydraulic winch 41, and a loading chain 43 fixed between the other end of the rope 42 and the clamping mechanism 5; the hydraulic winch 41 provides power to drive the rope 42 to pull the loading chain 43.

[0040] It should be noted that the rope 42 is a non-rotating steel wire rope; by pulling the loading chain 43 through the non-rotating steel wire rope, the risk of the loading chain 43 rotating can be prevented.

[0041] It can be understood that one end of the loading chain 43 away from the rope 42 is fixedly mounted on a side of the fixing frame 52 away from the clamping block 51 .

[0042] Furthermore, the reversing mechanism 22 includes a retaining frame 221 installed on the reaction support 2 by bolts and a reversing wheel 222 rotatably installed on the retaining frame 221; the retaining frame 221 can be disassembled and assembled by bolts, and then the position of the reversing mechanism 22 on the reaction support 2 is adjusted according to the blade size, thereby adjusting the loading height and loading angle of the rope 42.

[0043] It should be noted that the movable end of the rope 42 passes over the top of the fixed pulley 21 and the bottom of the reversing wheel 222 in turn; the fixed pulley 21 and the reversing wheel 222 are used to change the force center of gravity of the reaction support 2 when the rope 42 is loaded, thereby improving the overall stability of the device.

[0044] Example 2

[0045] Different from the first embodiment, a plurality of positioning grooves 11 for connecting with the workshop floor rails are symmetrically provided on the vertical beam foot 1 .

[0046] When in use, rotate the vertical beam anchor 1 to adjust the direction of the device facing the blade, and then use bolts from both sides of the vertical beam anchor 1 to pass through the positioning slots 11 and then screw them to the workshop rails, so as to fix the vertical beam anchor 1 and further meet the testing requirements of different testing environments.

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A large blade static test loading device, the loading device comprising a vertical beam anchor (1) fixedly mounted on a workshop floor rail, a reaction support (2) fixedly mounted on the vertical beam anchor (1), an auxiliary frame (3) fixedly mounted on the reaction support (2) for assisting stability, a clamping mechanism (5) movable on one side of the reaction support (2) for clamping a blade, and a loading mechanism (4) fixedly mounted on the reaction support (2) for loading the clamping mechanism (5); Features: The reaction support (2) has a fixed pulley (21) at one end away from the vertical beam foot (1), and a reversing mechanism (22) for adjusting a loading angle is fixedly mounted on the reaction support (2).

2. A large blade static test loading device according to claim 1, characterized in that: The clamping mechanism (5) comprises a clamping block (51) that moves toward or away from each other, a fixing frame (52) fixed to a side of the clamping block (51) that is away from each other, and a locking rod (53) with two ends respectively passing through the two fixing frames (52), and a nut that contacts a side of the fixing frame (52) away from the clamping block (51) is screwed to the end of the locking rod (53).

3. A large blade static test loading device according to claim 2, characterized in that: The loading mechanism (4) comprises a hydraulic winch (41) fixedly mounted on the reaction support (2) near the vertical beam foot (1), a rope (42) with one end wound on the hydraulic winch (41), and a loading chain (43) fixed between the other end of the rope (42) and the clamping mechanism (5).

4. A large blade static test loading device according to claim 3, characterized in that: The reversing mechanism (22) comprises a retaining frame (221) mounted on the reaction force bracket (2) via bolts, and a reversing wheel (222) rotatably mounted on the retaining frame (221).

5. A large blade static test loading device according to claim 3, characterized in that: One end of the loading chain (43) away from the rope (42) is fixedly mounted on a side of the fixing frame (52) away from the clamping block (51).

6. A large blade static test loading device according to claim 4, characterized in that: The movable end of the rope (42) is passed over the top of the fixed pulley (21) and under the reversing wheel (222) in sequence.

7. A large blade static test loading device according to claim 1, characterized in that: The vertical beam foot (1) is symmetrically provided with a plurality of positioning grooves (11) for connecting with the workshop floor rails.

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