Swinging fatigue test device for swinging hose

Abstract

The utility model relates to a swing fatigue test device for a swing hose, comprising a test assembly, one end portion of which is slidably mounted on a mounting rack, the other end portion of which is connected with a power assembly, and the swing hose to be tested being mounted on the test assembly; the power assembly is fixedly mounted on the bottom plate and is suitable for driving the test assembly to circularly swing so as to drive the swing hose to perform a swing test; the power assembly comprises an installation box, a sliding block and a rotating disc, the sliding block is slidably installed on the installation box, the rotating disc is rotatably installed on the installation box, the eccentric position of the rotating disc is rotatably installed at one end of the push-pull arm, the other end of the push-pull arm is hinged to the sliding block, and the sliding block is connected with the test assembly and suitable for driving the test assembly to swing through rotation of the rotating disc. The test device tests torsion and swing of the swing hose at the same time, can simulate the installation position and the working condition of the swing hose in an engine, better conforms to the actual structure of the engine, and ensures that the quality of the swing hose meets the standard.

Description

Technical Field

[0001] The utility model belongs to the technical field of swing hoses and relates to a test device for swing hoses, in particular to a swing fatigue test device for swing hoses. Background Art

[0002] The swing hose is a component within a rocket engine that adjusts the engine's attitude. It possesses both elastic and sealing properties, and can produce axial, angular, and combined displacements under external forces and torques. It is widely used in the aerospace field. To ensure that the swing hose's quality meets standards, a test device is required to perform swing fatigue tests on it. However, conventional test devices have the following problems:

[0003] 1. Traditional testing equipment can only test the axial and angular displacement of the swing hose, but cannot test the torsion of the swing hose. The test results are not comprehensive and there is a gap between the actual application conditions in the engine, which makes the swing hose a safety hazard.

[0004] 2. The traditional test device has a fixed swing amplitude and can only test the same type of swing hose. It cannot adjust the swing amplitude for swing hoses of different specifications and standards, and has poor versatility.

[0005] Therefore, we propose a swing fatigue test device for swing hoses to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a swing fatigue test device for a swing hose which has a simple structure and is easy to use.

[0007] In order to solve the above problems, the technical solution of the utility model is:

[0008] A swing fatigue test device for a swing hose, comprising:

[0009] The test assembly has one end slidably mounted on the mounting frame and the other end connected to the power assembly. The swing hose to be tested is installed on the test assembly;

[0010] A power assembly, fixedly mounted on the base plate, is suitable for driving the test assembly to perform cyclic swing motion, thereby driving the swing hose to perform a swing test;

[0011] The power assembly includes an installation box, a slider and a turntable. The slider is slidably installed on the installation box, and the turntable is rotatably installed on the installation box. The eccentric position of the turntable is rotatably installed on one end of the push-pull arm, and the other end of the push-pull arm is hinged on the slider. The slider is connected to the test assembly and is suitable for driving the test assembly to swing through the rotation of the turntable.

[0012] In a further embodiment, the mounting frame is fixedly mounted on the base plate, a height adjustment plate is vertically slidably mounted on the mounting frame, and a test assembly is longitudinally slidably mounted on the bottom end surface of the height adjustment plate, suitable for adjusting the installation position of the test assembly.

[0013] In a further embodiment, the test assembly includes a fixed part, a swing arm and a mounting tube, the bottom end of the fixed part is hingedly mounted on the swing arm, one end of the mounting tube is fixedly mounted on the fixed part, and the other end of the mounting tube is fixedly mounted on the swing arm.

[0014] In a further embodiment, the fixing portion is a vertical structure, and the swing arm and the mounting tube are both L-shaped structures and are relatively arranged.

[0015] In a further embodiment, a first swing hose is mounted on an upper portion of the mounting tube, suitable for performing a torsion test;

[0016] A second swing hose is installed at the lower part of the installation pipe, which is suitable for performing a swing test.

[0017] In a further embodiment, the bottom end of the swing arm is hinged to one end of a connecting rod, and the other end of the connecting rod is hinged to the slider.

[0018] In a further embodiment, a pair of slide rails are fixedly mounted on the mounting box, and the sliders are slidably mounted on the slide rails.

[0019] In a further embodiment, a detection assembly is fixedly mounted on the mounting box, the detection assembly includes a detection rod and a sensor, the sensor is fixedly mounted on the mounting box, one end of the detection rod is fixedly mounted on the slider, and the other end of the detection rod is inserted into the sensor.

[0020] In a further embodiment, an adjustment plate is slidably mounted on the turntable, and a push-pull arm is rotatably mounted on one side of the adjustment plate;

[0021] The motor is fixedly installed in the installation box, and the output shaft of the motor is fixedly installed with a turntable.

[0022] In a further embodiment, two power assemblies are symmetrically provided, the test assembly is located between the two power assemblies, and the test assembly is connected to one of the power assemblies;

[0023] The turntables of the two power assemblies are of different sizes and are suitable for testing swing hoses of different specifications.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] 1. The test assembly of this test device includes a fixed part, a swing arm and a mounting tube. The bottom end of the fixed part is hingedly mounted on the swing arm, the top end of the mounting tube is fixedly mounted on the fixed part, and the bottom end of the mounting tube is fixedly mounted on the swing arm. A first swing hose is mounted on the upper part of the mounting tube, and a second swing hose is mounted on the lower part of the mounting tube. When the power assembly drives the swing arm to swing, the first swing hose twists and the second swing hose swings. The twisting and swinging of the swing hoses are tested simultaneously, and the test results are more comprehensive. It can simulate the installation position and working conditions of the swing hoses in the engine, which is more in line with the actual structure of the engine, ensuring that the quality of the swing hoses meets the standards and reducing safety hazards.

[0026] 2. A height adjustment plate is slidably installed on the mounting frame of this test device. A number of longitudinal slideways are arranged at intervals on the bottom end surface of the height adjustment plate. The fixed part is slidably installed on the slideway, so that the height adjustment plate can drive the fixed part to adjust the installation height. The fixed part can slide forward and backward to adjust the installation position. It is suitable for swing hoses of different specifications and sizes and has strong versatility.

[0027] 3. The turntable of this test device is provided with a groove, on which an adjustment plate is slidably installed. One end of the push-pull arm is rotatably installed on the adjustment plate, and the other end of the push-pull arm is hinged on the slider. By adjusting the position of the adjustment plate in the groove, the motion thread of the push-pull arm is adjusted, and the reciprocating distance of the slider is further changed, thereby completing the adjustment of the swing amplitude of the swing arm. It can test swing hoses of different standards and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A top view of a swing fatigue test apparatus for a swing hose;

[0029] Figure 2 It is a front view of a swing fatigue test device for a swing hose;

[0030] Figure 3 is a side view of a swing fatigue test apparatus for a swing hose;

[0031] Figure 4 A schematic diagram of a turntable for a swing fatigue test device for swing hoses.

[0032] In the figure: 1. Base plate; 2. Test assembly; 21. Connecting rod; 22. Mounting tube; 23. First swing hose; 24. Fixing part; 241. Swing arm; 25. Second swing hose; 3. Power assembly; 31. Mounting box; 32. Slider; 321. Third connecting part; 322. First connecting part; 323. Second connecting part; 33. Slide rail; 34. Push-pull arm; 35. Turntable; 351. Adjustment plate; 36. Detection assembly; 361. Detection rod; 362. Sensor; 37. Motor; 4. Mounting frame; 41. Height adjustment plate; 411. Slide. DETAILED DESCRIPTION

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0034] Example 1:

[0035] A swing fatigue test device for swing hoses, such as Figures 1 to 4 As shown, it includes a base plate 1, a test component 2, a power component 3 and a mounting frame 4. The mounting frame 4 and a pair of power components 3 are fixed on the base plate 1. The mounting frame 4 is located between the pair of power components 3. The test component 2 is fixedly installed on the mounting frame 4. The test component 2 is connected to one of the power components 3. The swing hose that needs to be tested is installed on the test component 2. The test component 2 is driven to swing by the power component 3, and the quality of the swing hose is tested.

[0036] like Figure 2As shown, the mounting frame 4 is a door-type frame structure, and a pair of side rods of the mounting frame 4 are symmetrically fixed with vertically arranged slide grooves, and a height adjustment plate 41 is slidably installed between the pair of slide grooves, so that the height adjustment plate 41 can slide up and down along the slide grooves. When the height adjustment plate 41 moves to the specified position, it can be fixed by a limiting structure such as bolts; a number of longitudinally arranged slide rails 411 are arranged at intervals on the bottom end surface of the height adjustment plate 41, and the test component 2 is slidably installed on the slide rails 411, so that the test component 2 can adjust the installation position according to the test needs, and be fixed by a limiting structure such as bolts after moving to the specified position.

[0037] like Figure 3 As shown, the test assembly 2 includes a fixed portion 24, a mounting tube 22 and a swing hose that needs to be tested. The mounting tube 22 is fixed on the fixed portion 24, and two swing hoses are installed on the mounting tube 22; the fixed portion 24 is slidably installed on the slide 411, the upper portion of the fixed portion 24 is fixed with the upper end of the mounting tube 22, the bottom end of the fixed portion 24 is hinged to the top end of the swing arm 241, the bottom end of the swing arm 241 is fixed with the lower end of the mounting tube 22, the bottom end of the swing arm 241 is also hinged to one end of the connecting rod 21, and the other end of the connecting rod 21 is hinged to the power assembly 3; the swing arm 241, The mounting tubes 22 are all L-shaped structures and are relatively arranged. The first swing hose 23 is installed at the upper end of the mounting tube 22, and the second swing hose 25 is installed at the lower end of the mounting tube 22. When the power component 3 drives the connecting rod 21 to reciprocate, the connecting rod 21 drives the swing arm 241 to swing, and the mounting tube 22 also swings, causing the first swing hose 23 located at the upper end of the mounting tube 22 to twist and the second swing hose 25 located at the lower end of the mounting tube 22 to swing, thereby testing the flexibility, strength and other characteristics of the first swing hose 23 and the second swing hose 25.

[0038] like Figure 1 、 Figure 4As shown, the power assembly 3 includes an installation box 31, a slider 32, a slide rail 33, a detection assembly 36 and a turntable 35. The installation box 31 is fixedly installed on the base plate 1. A pair of slide rails 33 are fixedly installed on the top surface of the installation box 31. The sliders 32 are slidably installed on the pair of slide rails 33. The turntable 35 is rotatably installed on the installation box 31 at one end of the slide rails 33. The detection assembly 36 is installed on the installation box 31 at one side of the slide rails 33; a motor 37 is fixedly installed in the installation box 31, and the output shaft of the motor 37 is fixedly installed on the turntable 35. The top surface of the turntable 35 is made with a groove, and an adjustment plate 351 is slidably installed in the groove. Rulers are set on both sides of the adjustment plate 351 to facilitate precise movement and adjustment. The ends of the section plate 351 and the adjustment plate 351 are rotatably mounted on one end of the push-pull arm 34 through bearings. The other end of the push-pull arm 34 is hinged on the slider 32. The push-pull arm 34 can convert the rotation of the turntable 35 into periodic reciprocating motion, thereby driving the slider 32 to slide on the slide rail 33. One end of the slider 32 is fixedly mounted with a first connecting portion 322 for hinged mounting of the push-pull arm 34. The other end of the slider 32 is fixedly mounted with a second connecting portion 323 for hinged mounting of the connecting rod 21, so that the reciprocating motion of the slider 32 is transmitted to the swing arm 241 through the connecting rod 21. A third connecting portion 321 is also fixedly mounted on the side end surface of the slider 32 for mounting the detection assembly 36. Preferably, the pair of power assemblies 3 are symmetrically arranged and are equipped with motors 37 of different frequencies and turntables 35 of different sizes, so that the pair of power assemblies 3 can respectively perform tests of different swing angles and swing frequencies, thereby increasing the test range and being suitable for testing swing hoses of different standards.

[0039] The detection assembly 36 includes a detection rod 361 and a sensor 362. The sensor 362 is fixedly mounted on the mounting box 31. One end of the detection rod 361 is fixedly mounted on the third connecting portion 321 of the slider 32, and the other end of the detection rod 361 is mounted on the sensor 362. When the slider 32 reciprocates, the detection rod 361 moves. The sensor 362 detects the distance moved by the detection rod 361, and can obtain data such as the torsion angle of the first swing hose 23 and the swing amplitude of the second swing hose 25. Preferably, the sensor 362 is a displacement sensor, model LWH-0150.

[0040] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A swing fatigue test device for a swing hose, characterized in that: include: A test assembly (2) has one end slidably mounted on a mounting frame (4) and the other end connected to a power assembly (3), wherein the swing hose to be tested is mounted on the test assembly (2); The power assembly (3) is fixedly mounted on the base plate (1) and is suitable for driving the test assembly (2) to perform a cyclic swing motion, thereby driving the swing hose to perform a swing test; The power assembly (3) includes an installation box (31), a slider (32) and a turntable (35), wherein the slider (32) is slidably mounted on the installation box (31), and the turntable (35) is rotatably mounted on the installation box (31). The eccentric position of the turntable (35) is rotatably mounted on one end of a push-pull arm (34), and the other end of the push-pull arm (34) is hingedly mounted on the slider (32). The slider (32) is connected to the test assembly (2) and is suitable for driving the test assembly (2) to swing by rotating the turntable (35).

2. The swing fatigue test device for a swing hose according to claim 1, characterized in that: The mounting frame (4) is fixedly mounted on the base plate (1); a height adjustment plate (41) is vertically slidably mounted on the mounting frame (4); and the test assembly (2) is longitudinally slidably mounted on the bottom end surface of the height adjustment plate (41), suitable for adjusting the installation position of the test assembly (2).

3. The swing fatigue test device for a swing hose according to claim 2, characterized in that: The test assembly (2) includes a fixed portion (24), a swing arm (241) and a mounting tube (22), wherein the bottom end of the fixed portion (24) is hingedly mounted on the swing arm (241), one end of the mounting tube (22) is fixedly mounted on the fixed portion (24), and the other end of the mounting tube (22) is fixedly mounted on the swing arm (241).

4. The swing fatigue test device for a swing hose according to claim 3, characterized in that: The fixing portion (24) is a vertical structure, and the swing arm (241) and the mounting tube (22) are both L-shaped structures and are arranged relative to each other.

5. The swing fatigue test device for a swing hose according to claim 4, characterized in that: A first swing hose (23) is installed on the upper portion of the installation pipe (22), suitable for performing a torsion test; A second swing hose (25) is installed at the lower portion of the installation pipe (22), which is suitable for performing a swing test.

6. The swing fatigue test device for a swing hose according to claim 5, characterized in that: The bottom end of the swing arm (241) is hinged to one end of a connecting rod (21), and the other end of the connecting rod (21) is hinged to the slider (32).

7. The swing fatigue test device for a swing hose according to claim 6, characterized in that: A pair of slide rails (33) are fixedly mounted on the installation box (31), and the slider (32) is slidably mounted on the slide rails (33).

8. The swing fatigue test device for a swing hose according to claim 7, characterized in that: A detection assembly (36) is fixedly mounted on the installation box (31), and the detection assembly (36) comprises a detection rod (361) and a sensor (362). The sensor (362) is fixedly mounted on the installation box (31), one end of the detection rod (361) is fixedly mounted on the slider (32), and the other end of the detection rod (361) is inserted into the sensor (362).

9. The swing fatigue test device for a swing hose according to claim 8, characterized in that: An adjusting plate (351) is slidably mounted on the rotating disk (35), and the push-pull arm (34) is rotatably mounted on one side of the adjusting plate (351); A motor (37) is fixedly installed in the installation box (31), and the output shaft of the motor (37) is fixedly installed on the turntable (35).

10. The swing fatigue test device for a swing hose according to claim 9, characterized in that: Two power assemblies (3) are symmetrically arranged, the test assembly (2) is located between the two power assemblies (3), and the test assembly (2) is connected to one of the power assemblies (3); The turntables (35) of the two power assemblies (3) have different sizes and are suitable for testing the swing hoses of different specifications.

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