Torque loading device of thrust propeller

Abstract

The utility model discloses a torque loading device of a thrust propeller, and relates to the technical field of propeller testing, the torque loading device comprises a connecting piece, a torque rod and a load applying assembly, the connecting piece is used for being coaxially connected to a propeller sleeve, and the connecting piece and the propeller sleeve are relatively fixed in the circumferential direction; the length direction of the torque rod is perpendicular to the axial direction of the connecting piece; the load applying assembly is connected with the end, away from the connecting piece, of the torque rod and used for applying load perpendicular to the axial direction of the paddle sleeve to the torque rod. The torque loading device of the thrust propeller provided by the utility model can meet the requirement of a torque loading test, and does not cause damage to the blades.

Description

Technical Field

[0001] The utility model relates to the technical field of propeller testing, in particular to a moment loading device for a thrust propeller. Background Art

[0002] The propeller is an important component in the aircraft, which is a component that generates tension or thrust; a thrust propeller means that the direction of the force generated by the propeller is toward the power output device. For example, the propeller located below the power output device can drive the entire aircraft to fly through the upward thrust generated by the rotation of the propeller.

[0003] Before the propeller is delivered to the user, it is necessary to undergo hydraulic testing and other work. The hydraulic test verifies that the various pitch performances of the propeller should meet the design index requirements. One of the loading tests is a test to verify the pitch capability of the propeller under overload conditions. Currently, the torque loading device is usually directly connected to the blade, but it is easy to cause damage to the blade and affect the quality of the blade. Utility Model Content

[0004] The utility model aims to provide a torque loading device for a thrust propeller to solve the problems existing in the above-mentioned prior art, meet the requirements of the torque loading test, and will not cause damage to the blades.

[0005] To achieve the above purpose, the utility model provides the following solutions:

[0006] The utility model provides a torque loading device for a thrust propeller, comprising a connecting piece, a torque rod and a load applying assembly, wherein the connecting piece is used to be coaxially connected to a propeller sleeve, and the connecting piece and the propeller sleeve are relatively fixed in the circumferential direction; the length direction of the torque rod is perpendicular to the axial direction of the connecting piece, and one end of the torque rod is fixedly connected to the connecting piece; the load applying assembly is connected to one end of the torque rod away from the connecting piece, and is used to apply a load perpendicular to the axial direction of the propeller sleeve to the torque rod.

[0007] Preferably, the connecting member is configured as a positioning sleeve, one end of which is coaxially sleeved on the propeller sleeve and relatively fixed in the circumferential direction; one end of the torque rod is fixedly connected to the other end of the positioning sleeve.

[0008] Preferably, a plurality of assembly keys are circumferentially arranged at one end of the positioning sleeve, and the assembly keys are used to be embedded in keyways on the inner wall of the propeller sleeve.

[0009] Preferably, one end of the torque rod is detachably fixedly connected to the connecting member.

[0010] Preferably, one end of the torque rod is detachably inserted into the positioning sleeve, and the torque rod and the positioning sleeve are connected by screws.

[0011] Preferably, the load application assembly is detachably connected to the torque rod.

[0012] Preferably, a hook is provided at one end of the torque rod facing away from the connecting member, and the load application assembly is detachably suspended from the hook.

[0013] Preferably, the load application assembly includes a connecting rod, a tray, and at least one heavy object. The upper end of the connecting rod is relatively fixed to the torque rod, the lower end of the connecting rod is fixedly connected to the tray, and the heavy object is placed on the tray.

[0014] Preferably, a plurality of heavy objects are provided, and they are all detachably arranged on the tray and connected to the connecting rod.

[0015] Preferably, the load application assembly further includes a fixing nut, which is threadedly connected to the connecting rod and used to press above the heavy object.

[0016] The utility model has achieved the following technical effects compared with the prior art:

[0017] The torque loading device for a thrust propeller provided by the utility model is coaxially connected to the propeller hub through a connecting member, and directly loads the torque onto the propeller hub without clamping the propeller blades, so the propeller blades will not be damaged. Among them, the load application assembly applies the load to the torque rod, and then the torque rod transmits the torque to the connecting member. Since the connecting member and the propeller hub are coaxial and relatively fixed in the circumferential direction, the torque acting on the connecting member also acts on the propeller hub, thereby realizing the torque loading of the propeller, and further realizing the variable torque capacity test under torque loading by controlling the rotation of the propeller hub itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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 to be used in the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a front view schematic diagram of the torque loading device for a thrust propeller provided in Embodiment 1;

[0020] Figure 2 It is a test schematic diagram of the connecting member and the torque rod provided in Embodiment 1.

[0021] In the figure: 1 - connecting member; 11 - assembly key; 2 - torque rod; 21 - hook; 3 - load application assembly; 31 - connecting rod; 32 - tray; 33 - heavy object; 34 - fixing nut. DETAILED DESCRIPTION

[0022] 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.

[0023] The utility model aims to provide a torque loading device for a thrust propeller to solve the problems existing in the above-mentioned prior art, meet the requirements of the torque loading test, and will not cause damage to the blades.

[0024] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] Embodiment 1

[0026] This embodiment provides a torque loading device for a thrust propeller, see Figure 1 and Figure 2 , including a connector 1, a torque rod 2 and a load applying assembly 3; the connector 1 is used to be coaxially connected to the propeller sleeve, and the connector 1 and the propeller sleeve are relatively fixed in the circumferential direction; the length direction of the torque rod 2 is perpendicular to the axial direction of the connector 1, and one end of the torque rod 2 is fixedly connected to the connector 1; the load applying assembly 3 is connected to the end of the torque rod 2 away from the connector 1, and is used to apply a load perpendicular to the axial direction of the propeller sleeve to the torque rod 2.

[0027] The connecting piece 1 is coaxially connected to the propeller sleeve, and the torque is directly loaded to the propeller sleeve without clamping the blade, so the blade will not be damaged; the load application component 3 applies the load to the torque rod 2, and then the torque rod 2 transfers the torque to the connecting piece 1. Since the connecting piece 1 is coaxial with the propeller sleeve and relatively fixed in the circumferential direction, the torque acting on the connecting piece 1 also acts on the propeller sleeve, thereby realizing the torque loading of the propeller; during use, after the torque loading device of the thrust propeller is assembled, the connecting piece 1 is connected to the propeller sleeve without installing the blade, and then the torque variable capacity under torque loading is tested by controlling the rotation of the propeller sleeve by controlling the propeller itself.

[0028] In the optional scheme of this embodiment, it is more preferred that the connecting member 1 is configured as a positioning sleeve, one end of which is used to be coaxially sleeved on the propeller sleeve and relatively fixed in the circumferential direction; one end of the torque rod 2 is fixedly connected to the other end of the positioning sleeve; and the positioning sleeve is convenient for coaxial setting with the propeller sleeve.

[0029] In the optional scheme of this embodiment, it is more preferred that a plurality of assembly keys 11 are circumferentially arranged at one end of the positioning sleeve, and the assembly keys 11 are used to be embedded in the key slots on the inner wall of the propeller sleeve. The circumferential positions of the positioning sleeve and the propeller sleeve are fixed by the cooperation between the assembly keys 11 and the key slots to avoid relative rotation.

[0030] In the optional scheme of this embodiment, it is more preferred that one end of the torque rod 2 can be detachably fixedly connected to the connecting member 1, so as to facilitate the installation and disassembly of the torque rod 2 and the connecting member 1.

[0031] In the optional scheme of this embodiment, it is more preferred that one end of the torque rod 2 can be detachably inserted into the positioning sleeve, and the torque rod 2 and the positioning sleeve are connected by screws; wherein one end of the torque rod 2 passes through the side wall of the positioning sleeve, and then a screw is arranged on the positioning sleeve to connect with the torque rod 2, so as to achieve the fixation of the torque rod 2 and the positioning sleeve.

[0032] In the optional scheme of this embodiment, it is more preferred that the load applying assembly 3 can be detachably connected to the torque rod 2, which is convenient for installation and disassembly, and different torques can be applied by replacing different load applying assemblies 3.

[0033] In the optional scheme of this embodiment, it is more preferred that a hook 21 is provided at the end of the torque rod 2 facing away from the connecting member 1, and the load application assembly 3 can be detachably suspended on the hook 21, wherein the upper end of the hook 21 can be rotatably penetrated by the torque rod 2, so that the hook 21 can maintain a vertical direction, and the suspension method is convenient for installation and disassembly.

[0034] In the optional scheme of this embodiment, it is more preferred that the load applying assembly 3 includes a connecting rod 31, a tray 32 and at least one weight 33. The connecting rod 31 is vertically arranged, and the upper end is fixed relative to the torque rod 2, the lower end of the connecting rod 31 is fixedly connected to the tray 32, and the weight 33 is placed on the tray 32; specifically, the upper end of the connecting rod 31 may be fixedly provided with a lifting ring for lifting with the hook 21; the tray 32 may be connected to the lower end of the connecting rod 31 by a thread, so as to facilitate installation and disassembly; the weight 33 is placed on the tray 32, and a vertical load is applied to the torque rod 2 through the connecting rod 31.

[0035] In the optional scheme of this embodiment, it is more preferred that a plurality of weights 33 are provided, all of which can be detachably arranged on the tray 32 and connected to the connecting rod 31; by providing a plurality of weights and being detachably arranged, it is convenient to adjust the load size and thus the torque size; specifically, the weight 22 is provided as a weight, and a slot extending to the side is provided in the middle of the weight, so that the connecting rod 31 is passed through the slot and is arranged on the weight, and a plurality of weights 33 can be stacked.

[0036] In an alternative embodiment of the present embodiment, preferably, the load application assembly 3 further includes a fixing nut 34, which is threadedly connected to the connecting rod 31 and is used to press above the heavy object 33. By providing the fixing nut 34, the heavy object 33 is pressed tightly to prevent the heavy object 33 from moving during the torque conversion process.

[0037] In the present utility model, specific examples are used to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model; at the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. A torque loading device for a thrust propeller, characterized in that: include: A connecting member (1) is used for being coaxially connected to the propeller sleeve, and the connecting member (1) and the propeller sleeve are relatively fixed in the circumferential direction; A torque rod (2), the length direction of which is perpendicular to the axial direction of the connecting piece (1), and one end of the torque rod (2) is fixedly connected to the connecting piece (1); and A load applying assembly (3) is connected to one end of the torque rod (2) away from the connecting member (1), and is used to apply a load perpendicular to the axial direction of the propeller sleeve to the torque rod (2).

2. The torque loading device for a thrust propeller according to claim 1, characterized in that: The connecting member (1) is configured as a positioning sleeve, one end of which is coaxially sleeved on the propeller sleeve and relatively fixed in the circumferential direction; one end of the torque rod (2) is fixedly connected to the other end of the positioning sleeve.

3. The torque loading device for a thrust propeller according to claim 2, characterized in that: One end of the positioning sleeve is provided with a plurality of assembly keys (11) along the circumferential direction, and the assembly keys (11) are used to be embedded in key slots on the inner wall of the propeller sleeve.

4. The torque loading device for a thrust propeller according to claim 2, characterized in that: One end of the torque rod (2) is detachably fixedly connected to the connecting member (1).

5. The torque loading device for a thrust propeller according to claim 4, characterized in that: One end of the torque rod (2) is detachably inserted into the positioning sleeve, and the torque rod (2) and the positioning sleeve are connected via screws.

6. The torque loading device for a thrust propeller according to claim 1, characterized in that: The load application assembly (3) is detachably connected to the torque rod (2).

7. The torque loading device for a thrust propeller according to claim 6, characterized in that: A hook (21) is provided at one end of the torque rod (2) facing away from the connecting member (1), and the load applying assembly (3) is detachably connected to the hook (21).

8. The torque loading device for a thrust propeller according to claim 7, characterized in that: The load applying assembly (3) comprises a connecting rod (31), a tray (32) and at least one weight (33); the connecting rod (31) is arranged vertically, and the upper end is relatively fixed to the torque rod (2); the lower end of the connecting rod (31) is fixedly connected to the tray (32), and the weight (33) is placed on the tray (32).

9. The torque loading device for a thrust propeller according to claim 8, characterized in that: The weights (33) are provided in plurality, and are all detachably arranged on the tray (32) and connected to the connecting rod (31).

10. The torque loading device for a thrust propeller according to claim 8, characterized in that: The load applying assembly (3) further comprises a fixing nut (34), wherein the fixing nut (34) is threadedly connected to the connecting rod (31) and is used for being pressed onto the weight (33).

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