Blade large and small moment measuring tool

Abstract

The utility model discloses a blade large and small moment measuring tool in the blade detection technology field, comprising a large moment measuring assembly comprising a first support frame and a second support frame which are used for supporting a blade to be measured, the top of the first support frame and the top of the second support frame are both provided with a blade-shaped structure, the first support frame and the second support frame are respectively arranged on the two electronic scales; the small torque measuring assembly comprises a third supporting frame, a fourth supporting frame and a mounting frame, the top of the third supporting frame and the top of the fourth supporting frame are each provided with a blade-shaped structure, the third supporting frame and the fourth supporting frame are arranged on the two electronic scales respectively, and the mounting frame is supported on the third supporting frame and the fourth supporting frame; according to the utility model, the problems of high cost and long period of moment measurement in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of blade detection, and particularly relates to a compressor blade detection device. Background Art

[0002] After the production and manufacturing of compressor blades are completed, it is necessary to measure the torque of the blades to meet the dynamic balance requirements. Traditional torque measurement requires a dedicated torque scale for measurement, and the use cost of the torque scale is high and the test cycle is long. How to simply and quickly calculate the blade torque is an urgent problem to be solved at present. Content of the Utility Model

[0003] Aiming at the deficiencies in the prior art, the utility model provides a blade large and small torque measurement tooling, which solves the problems of high cost and long cycle in existing torque measurement.

[0004] The purpose of the utility model is realized as follows: A blade large and small torque measurement tooling, comprising:

[0005] A large torque measurement component, including a first support frame and a second support frame for supporting the blade to be measured. Blade-shaped structures are provided at the tops of the first support frame and the second support frame, and the first support frame and the second support frame are respectively placed on two electronic scales;

[0006] A small torque measurement component, including a third support frame, a fourth support frame and a mounting frame. Blade-shaped structures are provided at the tops of the third support frame and the fourth support frame, and the third support frame and the fourth support frame are also respectively placed on two electronic scales. The mounting frame is supported on the third support frame and the fourth support frame, and the mounting frame is used to install and position the blade to be measured.

[0007] As a preferred technical solution of the blade large and small torque measurement tooling of the utility model, the heights of the first support frame and the second support frame are different, so that the axis of the blade to be measured supported on the first support frame and the second support frame remains horizontal.

[0008] As a preferred technical solution of the blade large and small torque measurement tooling of the utility model, the heights of the third support frame and the fourth support frame are the same, and the support points of the mounting frame with the third support frame and the fourth support frame are symmetrically placed on both sides of the axis of the blade to be measured.

[0009] As a preferred technical solution of the blade large and small torque measurement tooling of the utility model, the mounting frame includes a pair of bottom plates, the two bottom plates are respectively supported on the third support frame and the fourth support frame, and a support frame is provided on the two bottom plates, and the blade to be measured is installed on the support frame.

[0010] As a preferred technical solution of the leaf size and moment measurement tooling of the present utility model, the support frame includes an upper frame and a lower frame. The lower frame is supported on the two bottom plates, and the upper frame is used to install the leaf to be measured. A first connecting member for connecting the leaf root is provided on one side of the upper frame, and a second connecting member for connecting the leaf tip is provided on the other side of the upper frame.

[0011] As a preferred technical solution of the leaf size and moment measurement tooling of the present utility model, the line connecting the first connecting member and the second connecting member is coaxial with the axis of the leaf to be measured.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] The structure of the present utility model is simple, the manufacturing and processing cost is low, the measurement is fast and convenient, and for the leaves after conversion and balancing, the mass difference between any two leaves is not greater than 100 g. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model, and for those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0015] Figure 1 It is a schematic diagram of the large moment measurement component in the present utility model.

[0016] Figure 2 It is a schematic diagram of the small moment measurement component in the present utility model.

[0017] Figure 3 For Figure 2 the schematic diagrams of the third support frame and the fourth support frame in

[0018] Figure 4 For Figure 2 the schematic diagram of the installation frame in

[0019] Among them, 100 is the large moment measurement component, 101 is the first support frame, 102 is the second support frame, 200 is the small moment measurement component, 201 is the third support frame, 202 is the fourth support frame, 203 is the installation frame, 203a is the bottom plate, 203b is the support frame, 203b-1 is the upper frame, 203b-2 is the lower frame, 203b-3 is the first connecting member, and 203b-4 is the second connecting member. Detailed Embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] As Figures 1-4 shown, a blade size and moment measurement tooling includes:

[0022] A large moment measurement component 100, including a first support frame 101 and a second support frame 102 for supporting the blade to be measured. Blade-like structures are provided at the tops of the first support frame 101 and the second support frame 102, and the first support frame 101 and the second support frame 102 are respectively placed on two electronic scales;

[0023] A small moment measurement component 200, including a third support frame 201, a fourth support frame 202, and an installation frame 203. Blade-like structures are provided at the tops of the third support frame 201 and the fourth support frame 202, and the third support frame 201 and the fourth support frame 202 are also respectively placed on two electronic scales. The installation frame 203 is supported on the third support frame 201 and the fourth support frame 202, and the installation frame 203 is used to install and position the blade to be measured.

[0024] Specifically, the first support frame 101, the second support frame 102, the third support frame 201, and the fourth support frame 202 adopt an inverted T-shaped structure, and their horizontal parts are respectively placed on a single electronic scale, and the tops of the vertical parts are processed into blade-like structures; the installation frame 203 is welded by square tubes and is mainly used to fix the blade to be measured; when the first support frame 101 and the second support frame 102 support, the distances between the support points of the blade-like structures and both ends of the paddle blade should be kept as equal as possible, and when the third support frame 201 and the fourth support frame 202 support, the distances between the support points of the blade-like structures and the central axis of the installation frame 203 should be kept as equal as possible.

[0025] When the utility model measures large torque, place the first support frame 101 and the second support frame 102 on two electronic scales respectively. Horizontally support the root of the blade to be measured on the first support frame 101, and horizontally support the blade part of the blade to be measured on the second support frame 102. Read the data of the two electronic scales and calculate by combining the formula. When measuring small torque, first fix the blade to be measured on the installation frame 203, and then hoist or lift the whole to the third support frame 201 and the fourth support frame 202. Read the data of the two electronic scales and calculate by combining the formula. The calculation formula is as follows: m1gL1 = m2gL2, L1 + L2 = L, where m1 and m2 are the readings of the electronic scales, and L is the distance between the two blade-shaped structures. After m1, m2, and L are known, the position of the center of gravity can be obtained. Compare whether the position of the center of gravity is within the error range of the preset position. If it is, it is determined that the blade is qualified. If not, fine-tuning can be carried out by means of patching.

[0026] It should be noted that the tops of the first support frame 101, the second support frame 102, the third support frame 201, and the fourth support frame 202 of the utility model are processed into blade-shaped structures. According to the calculation formula, the contact area during testing is reduced (to achieve line contact), and the measurement accuracy of the L distance is improved. And when measuring different blades, it is ensured that the replacement of the blade will not affect the L distance.

[0027] Furthermore, the heights of the first support frame 101 and the second support frame 102 are different, so that the axes of the blades to be measured supported on the first support frame 101 and the second support frame 102 are kept horizontal.

[0028] Specifically, the heights of the first support frame 101 and the second support frame 102 can be preset according to the structure of the blade.

[0029] It should be noted that such a design can further improve the accuracy of large torque measurement.

[0030] Furthermore, the heights of the third support frame 201 and the fourth support frame 202 are the same, and the support points of the installation frame 203 with the third support frame 201 and the fourth support frame 202 are symmetrically placed on both sides of the axis of the blade to be measured.

[0031] It should be noted that such a design can further improve the accuracy of small torque measurement.

[0032] Furthermore, the installation frame 203 includes a pair of bottom plates 203a. The two bottom plates 203a are respectively supported on the third support frame 201 and the fourth support frame 202. A support frame 203b is provided on the two bottom plates 203a, and the blade to be measured is installed on the support frame 203b.

[0033] Specifically, the bottom plates 203a are symmetrically arranged on both sides of the support frame 203b. During measurement, it is only necessary to keep the centers of the two bottom plates 203a respectively supported on the third support frame 201 and the fourth support frame 202.

[0034] It should be noted that this further improves the accuracy during small torque measurement.

[0035] Furthermore, the support frame 203b includes an upper frame 203b-1 and a lower frame 203b-2. The lower frame 203b-2 is supported on the two bottom plates 203a. The upper frame 203b-1 is used to install the blade to be measured. One side of the upper frame 203b-1 is provided with a first connecting member 203b-3 for connecting the blade root, and the other side of the upper frame 203b-1 is provided with a second connecting member 203b-4 for connecting the blade tip.

[0036] Specifically, the lower frame 203b-2 is fixed to the bottom of the upper frame 203b-1 and symmetrically extends to both sides; the first connecting member 203b-3 can use bolts to fix the end of the blade root to one end of the upper frame 203b-1, and the second connecting member 203b-4 can insert the tapered tip into the blade tip.

[0037] It should be noted that such designs are all for ensuring alignment and further improving the measurement accuracy.

[0038] Furthermore, the connection line between the first connecting member 203b-3 and the second connecting member 203b-4 is coaxial with the axis of the blade to be measured.

[0039] It should be noted that this further improves the accuracy during small torque measurement.

[0040] The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be pointed out that for those of ordinary skill in the art of this technology, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A tool for measuring the size and moment of a blade, characterized in that Comprising: A large torque measurement assembly (100), including a first support frame (101) and a second support frame (102) for supporting the blade to be measured. Blade-shaped structures are provided at the tops of the first support frame (101) and the second support frame (102), and the first support frame (101) and the second support frame (102) are respectively placed on two electronic scales; A small torque measurement assembly (200), including a third support frame (201), a fourth support frame (202), and a mounting frame (203). Blade-shaped structures are provided at the tops of the third support frame (201) and the fourth support frame (202), and the third support frame (201) and the fourth support frame (202) are also respectively placed on two electronic scales. The mounting frame (203) is supported on the third support frame (201) and the fourth support frame (202), and the mounting frame (203) is used to mount and position the blade to be measured.

2. The blade size moment measuring tooling according to claim 1, wherein, The heights of the first support frame (101) and the second support frame (102) are different, so that the axis of the blade to be measured supported on the first support frame (101) and the second support frame (102) remains horizontal.

3. The blade size moment measuring tooling according to claim 1 or 2, characterized in that, The third support frame (201) and the fourth support frame (202) have the same height, and the support points of the mounting frame (203) with the third support frame (201) and the fourth support frame (202) are symmetrically placed on both sides of the axis of the blade to be measured.

4. A blade size and moment measuring tooling according to claim 3, characterized in that The mounting frame (203) includes a pair of bottom plates (203a). The two bottom plates (203a) are respectively supported on the third support frame (201) and the fourth support frame (202). A support frame (203b) is provided on the two bottom plates (203a), and the blade to be measured is mounted on the support frame (203b).

5. A blade size and moment measuring tooling according to claim 4, characterized in that The support frame (203b) includes an upper frame (203b-1) and a lower frame (203b-2). The lower frame (203b-2) is supported on the two bottom plates (203a). The upper frame (203b-1) is used to mount the blade to be measured. A first connecting member (203b-3) for connecting the blade root is provided on one side of the upper frame (203b-1), and a second connecting member (203b-4) for connecting the blade tip is provided on the other side of the upper frame (203b-1).

6. The blade size moment measuring tooling according to claim 5, characterized in that The line connecting the first connecting member (203b-3) and the second connecting member (203b-4) is coaxial with the axis of the blade to be measured.

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