Propeller shaft body balance detection device
By designing a propeller shaft body balance detection device, using a pressure induction tube and a level to detect the balance of the propeller shaft body, the problem of large errors in traditional detection methods is solved, and higher detection accuracy and operation simplicity is achieved.
Patent Information
- Application Number
- CN202421180514.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-28
AI Technical Summary
Traditional methods use large errors to detect the balance performance of the upper and lower ends of the propeller shaft body of a helicopter, and it is impossible to accurately measure whether the weight is within the error range, which affects the accuracy of the detection.
Design a propeller shaft body balance detection device, including a support frame and a balance mechanism, use two sets of pressure components and fixing mechanism to fix the propeller shaft body, detect its balance degree through a pressure induction tube and a level, and display the results through the display screen to ensure detection accuracy.
Accurate detection of the balance of the propeller shaft body is achieved, errors are reduced, and detection accuracy and operation simplicity are improved.
Smart Images
Figure CN222247690U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of aircraft propeller testing, and in particular relates to a propeller shaft balance detection device. Background Art
[0002] The propeller shaft of a helicopter is usually an integrated structure formed by turning. The upper and lower ends need to be coaxial and balanced. The coaxiality can be guaranteed by machining accuracy, but the balance performance of the upper and lower ends needs to be tested to determine whether it is qualified. The traditional detection method is through visual inspection or placing it on the balance shaft for inspection. The detection error is large, and it is impossible to accurately measure whether the weight of the upper and lower ends of the propeller shaft is within the error range. Utility Model Content
[0003] The utility model aims to provide a propeller shaft balance detection device, which can accurately measure the weight error range of the upper and lower ends of the propeller shaft through a pressure test tube on a support frame, so as to judge whether the balance of the propeller shaft meets the standard.
[0004] The utility model is realized by the following technical solutions:
[0005] A propeller shaft balance detection device comprises a support frame and a balance mechanism, wherein the balance mechanism comprises two groups of pressure components, which are respectively arranged on the left and right sides of the support frame; the pressure components comprise a pressure sensing tube and a fixing mechanism, which are located on both sides of the pressure sensing tube and are used to fix the pressure sensing tube; the two ends of the propeller shaft are respectively placed on the two pressure sensing tubes, and the pressure sensing tubes are used to detect the balance of the propeller shaft.
[0006] Furthermore, a level is provided on the side of the pressure sensing tube, a display screen is provided on the level, and the pressure sensing tube is electrically connected to the level.
[0007] Furthermore, the fixing mechanism includes a fixed block, a limit block, a sliding block and a pin, the fixed block is connected to the support frame by bolts, the sliding block is arranged in the fixed block, the pressure sensing tube is arranged in the sliding block, the limit block is arranged on the pressure sensing tube, and the pin passes through the fixed block and the sliding block and abuts against the limit block.
[0008] Furthermore, baffles are provided on both sides of the support frame, and the baffles are used to limit the propeller shaft.
[0009] Furthermore, a dust cover is provided on the balancing mechanism.
[0010] Furthermore, supporting feet are arranged below the support frame.
[0011] Compared with the prior art, the utility model has the following advantages and beneficial effects:
[0012] 1) In the utility model, pressure components are arranged at the left and right ends above the support frame, and the pressure sensing tubes in the pressure components are fixed to the support frame through a fixing mechanism. After the propeller shaft is placed on the two pressure sensing tubes so that the center of gravity of the propeller shaft is kept coaxial with the center of gravity of the support frame, the changes of the pressure tubes on the left and right sides can be observed, so as to judge whether the propeller shaft meets the packaging balance requirements. The detection principle is simple and easy to operate.
[0013] 2) In the utility model, baffles are provided on the left and right sides of the support frame, and the spacing between the baffles is consistent with the length of the propeller shaft, so that the propeller shaft can be limited between the two baffles, further promoting the center of gravity of the propeller shaft to be consistent with the center of gravity of the support frame, thereby improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.
[0015] Figure 1 The figure is a schematic diagram of the assembly structure of the propeller shaft balance detection device of the utility model.
[0016] Figure 2 for Figure 1 Schematic diagram of the structure at point A in the middle.
[0017] Among them: 1-support frame, 11-support part, 2-fixing mechanism, 21-fixing block, 22-sliding block, 23-limiting block, 24-pin, 3-pressure sensing tube, 4-level, 5-baffle, 6-support foot, 7-dust cover, 8-propeller shaft. DETAILED DESCRIPTION
[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings 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.
[0019] Embodiment 1:
[0020] The main structure of this embodiment is a propeller shaft balance detection device, such as Figure 1As shown, it includes a support frame 1 and a balancing mechanism, the balancing mechanism includes two groups of pressure components, and the two groups of pressure components are respectively arranged on the left and right sides of the support frame 1; the pressure component includes a pressure sensing tube 3 and a fixing mechanism 2, the fixing mechanism 2 is located on both sides of the pressure sensing tube 3, and the fixing mechanism 2 is used to fix the pressure sensing tube 3; the two ends of the propeller shaft 8 are respectively placed on the two pressure sensing tubes 3, and the pressure sensing tube 3 is used to detect the balance of the propeller shaft 8; baffles 5 are arranged on both sides of the support frame 1, and the baffles 5 are used to limit the propeller shaft 8; a dust cover 7 is arranged on the balancing mechanism; and a support foot 6 is arranged under the support frame 1.
[0021] The support frame 1 is preferably welded from high carbon steel material, and support parts 11 are respectively provided on the left and right sides of the support frame 1, and pressure components are correspondingly provided on the support parts 11. The support parts 11 on the left and right sides are arranged at intervals, and the support parts 11 on the left and right sides are on the same horizontal plane. The pressure component includes a pressure sensing tube 3 and a fixing mechanism 2, and the fixing mechanism 2 is arranged at both ends of the pressure sensing tube 3 and connected to the support frame 1. The pressure sensing tube 3 is arranged on the fixing mechanism 2, and the shaft of the propeller is horizontally placed on the two pressure sensing tubes 3. It can be observed by visual inspection or external digital display whether the gravity of the propeller shaft 8 on the pressure sensing tubes 3 at both ends is consistent, so that it can be judged that the propeller shaft 8 balance; preferably, baffles 5 are provided on both sides of the support frame 1, and the length of the shaft body matches the spacing between the baffles 5. The baffles 5 can limit the propeller shaft body 8 so that the propeller shaft body 8 can be stably placed between the baffles 5, and at the same time, the center of gravity of the propeller shaft body 8 can be kept consistent with the center of gravity of the support frame 1, thereby reducing the inspection error; adjustable feet 6 are provided under the support frame 1, and the feet 6 are used to keep the support frame 1 horizontal and can adjust the height of the support frame 1 for easy operation by measurement personnel; a dust cover 7 is provided above the pressure assembly, and the dust cover 7 can protect the pressure assembly and prevent the pressure sensing tube 3 in the pressure assembly from being damaged by collision.
[0022] Example 2
[0023] Based on the above embodiments, this embodiment further defines the balancing mechanism, such as Figure 2 As shown, a level 4 is arranged on the side of the pressure sensing tube 3, a display screen is arranged on the level 4, and the pressure sensing tube 3 is electrically connected to the level 4; the fixing mechanism 2 includes a fixing block 21, a limiting block 23, a sliding block 22 and a pin 24, the fixing block 21 is connected to the support frame 1 by bolts, the sliding block 22 is arranged in the fixing block 21, the pressure sensing tube 3 is arranged in the sliding block 22, the limiting block 23 is arranged on the pressure sensing tube 3, and the pin 24 passes through the fixing block 21 and the sliding block 22 and abuts against the limiting block 23.
[0024] A level 4 is arranged on the side of the pressure sensing tube 3. At the same time, when measuring the balance of the propeller shaft 8, a level 4 can also be arranged between the two pressure sensing tubes 3; it is convenient to observe the inclination change of the pressure sensing tube 3; the fixing mechanism 2 includes a fixing block 21, a limiting block 23, a sliding block 22 and a pin 24. The fixing block 21 is connected to the support frame 1 by bolts. The bolts pass through the support frame 1 from the bottom of the support frame 1 and are connected to the fixing block 21, and fix the fixing block 21; the sliding block 22 is arranged in the fixing block 21, and the fixing block 21 can limit the sliding block 22, and the sliding block 22 can slide up and down in the fixing block 21 for adjustment; the pressure sensing tube 3 is arranged in the sliding block 22, The limit block 23 is arranged on the pressure sensing tube 3 and presses and fixes the pressure sensing; the pin 24 passes through the fixed block 21 and the sliding block 22 and abuts against the limit block 23. The pin 24 is threadedly connected with the fixed block 21 and the sliding block 22. After passing through the fixed block 21 and the sliding block 22, the limit block 23 can be limited, thereby pressing the pressure sensing tube 3 to keep it horizontal; at the same time, a level 4 is arranged on the side of the pressure sensing tube 3, and the level 4 is electrically connected to the pressure sensing tube 3. The value change of the pressure sensing tube 3 can be displayed on the display screen of the level 4, and the level 4 can determine whether the pressure tube is in a horizontal state, thereby further improving the accuracy of the detection. The other parts of this embodiment are the same as the above embodiment and will not be repeated here.
[0025] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. used to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the utility model product is usually placed when used. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model.
[0026] In addition, if the terms "horizontal" or "vertical" appear in the description of the present invention, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0027] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.
Claims
1. A propeller shaft balance detection device, characterized in that: It includes a support frame and a balancing mechanism, the balancing mechanism includes two groups of pressure components, and the two groups of pressure components are respectively arranged on the left and right sides of the support frame; the pressure component includes a pressure sensing tube and a fixing mechanism, the fixing mechanism is located on both sides of the pressure sensing tube, and the fixing mechanism is used to fix the pressure sensing tube; the two ends of the propeller shaft are respectively placed on the two pressure sensing tubes, and the pressure sensing tubes are used to detect the balance of the propeller shaft.
2. The propeller shaft balance detection device according to claim 1, characterized in that: A level is arranged on the side of the pressure sensing tube, a display screen is arranged on the level, and the pressure sensing tube is electrically connected to the level.
3. The propeller shaft balance detection device according to claim 1, characterized in that: The fixing mechanism includes a fixed block, a limit block, a sliding block and a pin. The fixed block is connected to the support frame by bolts, the sliding block is arranged in the fixed block, the pressure sensing tube is arranged in the sliding block, the limit block is arranged on the pressure sensing tube, and the pin passes through the fixed block and the sliding block and abuts against the limit block.
4. The propeller shaft balance detection device according to claim 1, characterized in that: Baffles are arranged on both sides of the support frame, and the baffles are used to limit the propeller shaft.
5. The propeller shaft balance detection device according to claim 1, characterized in that: A dust cover is provided on the balancing mechanism.
6. The propeller shaft balance detection device according to claim 1, characterized in that: Support legs are arranged below the support frame.