Spraying pipe tensile strength testing device

Abstract

The utility model discloses a spray pipe tensile strength testing device which comprises a base, a plurality of first fixing frames and a plurality of second fixing frames are movably arranged on the base, and fixing structures are arranged on the first fixing frames and the second fixing frames. The fixing structure comprises a fixing block, a threaded pipe and a fixing needle, and the spraying pipe is fixed through the fixing structure; and the first fixing frame and the second fixing frame are each provided with a moving structure, each moving structure comprises an electric push rod, a mounting frame and a rotating wheel, the mounting frames are fixedly arranged on the electric push rods, the rotating wheels are arranged on the mounting frames, and therefore the spraying pipe can be conveniently and rapidly moved.

Description

Technical Field

[0001] The utility model relates to the field of nozzle production, and in particular to a nozzle tensile strength testing device. Background Art

[0002] The nozzle is an important part of the engine. It is a device that accelerates the airflow by changing the geometric shape of the inner wall of the pipe section. After the nozzle is produced, a tensile strength test is required to ensure the quality of the nozzle. During the test, the two ends of the nozzle need to be fixed on a fixed structure. After the test is completed, the nozzle is removed from the fixed structure. In the prior art, it is not convenient to quickly disassemble the nozzle after it is fixed, which increases the time required for the test and reduces the test efficiency. In addition, if the fixing strength of the two ends of the nozzle is not enough during the stretching process, the fixed structure will separate from the nozzle, thereby affecting the test. Utility Model Content

[0003] In view of the problems existing in the prior art, the utility model provides a nozzle tensile strength testing device to solve the technical problems mentioned in the background technology.

[0004] To achieve the above object, the utility model provides the following technical solutions: a nozzle tensile strength test device, comprising a base, on which a first fixing frame and a second fixing frame are movably arranged, a plurality of the first fixing frame and the second fixing frame are arranged, and a fixing structure is arranged on the first fixing frame and the second fixing frame, and the fixing structure comprises a fixing block, a threaded tube and a fixing needle, and the nozzle is fixed by the fixing structure;

[0005] The first fixed frame and the second fixed frame are both provided with a movable structure, and the movable structure includes an electric push rod, a mounting frame and a rotating wheel. The mounting frame is fixedly provided on the electric push rod, and the rotating wheel is provided on the mounting frame. There are multiple rotating wheels, so as to facilitate the rapid movement of the nozzle.

[0006] The utility model is further configured such that the threaded tube is arranged to pass through the first fixing frame and the second fixing frame, the threaded tube is arranged on the fixing block, and is rotatably connected to the fixing block through a bearing, the interior of the threaded tube is provided with a thread, and the outer wall of the fixing needle is provided with a thread, so as to facilitate fixing the nozzle through the fixing block.

[0007] The utility model is further configured such that the threaded tube is threadedly connected to the first fixing frame and the second fixing frame, the fixing needle is arranged inside the threaded tube and threadedly connected to the inside of the threaded tube, a protruding block is fixedly provided on the fixing block, and a plurality of protruding blocks are provided, so as to facilitate re-fixing the nozzle by the fixing needle.

[0008] The utility model is further configured such that a connecting frame is detachably provided on the first fixing frame and the second fixing frame, a threaded rod and a sliding rod are provided on the base, the threaded rod and the sliding rod both pass through the connecting frame, and notches matching with the threaded rod are provided on the first fixing frame and the second fixing frame, thereby constituting the main structure of the entire test device.

[0009] The utility model is further configured such that mounting posts are provided on both the first fixing frame and the second fixing frame, a sliding groove cooperating with the mounting posts is provided on the connecting frame, a thread is provided on the top of the mounting post, a limit plate is detachably provided on the mounting post, and the limit plate is threadedly connected to the mounting post, thereby facilitating the connection between the connecting frame and the first fixing frame and the second fixing frame.

[0010] The utility model is further configured such that the threaded rod is rotatably connected to the base via a bearing, threads are provided at both ends of the sliding rod, the sliding rod is threadedly connected to the base, the threaded rod is threadedly connected to the connecting frame, and the sliding rod is slidably connected to the connecting frame, thereby facilitating the movement of the connecting frame by the rotation of the threaded rod.

[0011] The utility model is further configured such that connecting columns are fixedly provided on the upper ends of the first fixing frame and the second fixing frame, and a hook is rotatably provided on the connecting column of the second fixing frame, and the hook cooperates with the connecting column provided on the first fixing frame, thereby facilitating the connection between the first fixing frame and the second fixing frame through the cooperation between the hook and the connecting column.

[0012] The utility model is further configured such that the electric push rod is fixedly arranged on the first fixing frame and the second fixing frame, the rotating wheel is rotatably connected to the mounting frame through a bearing, a motor is fixedly arranged on the mounting frame, and the output end of the motor is connected to the rotating wheel, thereby facilitating rapid movement of the nozzle.

[0013] Compared with the prior art, this utility model has the following beneficial effects:

[0014] 1. In the utility model, a connecting column and a hook are provided on the first fixing frame and the second fixing frame, and the first fixing frame and the second fixing frame are connected by the cooperation of the connecting column and the hook, and the first fixing frame and the second fixing frame are driven to move together by the threaded connection between the threaded rod and the connecting frame; when the test is completed and the nozzle needs to be disassembled, the cooperation between the hook and the connecting column is separated, and the first fixing frame and the second fixing frame are pulled apart by the cooperation of the mounting columns on the first fixing frame and the second fixing frame and the sliding groove of the connecting frame, so as to facilitate the rapid disassembly of the nozzle.

[0015] 2. In the utility model, a first fixing frame, a second fixing frame and a fixing structure are provided. The fixing block is driven to move by the rotation of the threaded tube so that the fixing block contacts the surface of the nozzle. The nozzle fixing column and the fixing needle are connected with the threads of the threaded tube through the cooperation of a plurality of fixing blocks. The fixing needle extends out of the threaded rod and contacts the surface of the nozzle, and contacts the nozzle again, thereby ensuring the stability of the connection between the nozzle and the entire device during the test.

[0016] 3. When a tensile strength test is required for different positions of a long nozzle, the mounting frame and the rotating wheel are moved by extending the electric push rod, so that the surface of the rotating wheel contacts the surface of the nozzle, and the rotating wheel is driven by the motor to rotate, thereby driving the nozzle to move, which is convenient for quickly changing the position of the nozzle and increasing the convenience of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of a nozzle tensile strength test device;

[0018] Figure 2 It is a schematic diagram of the matching structure of a first fixing frame and a second fixing frame of a nozzle tensile strength test device;

[0019] Figure 3 It is a schematic diagram of the matching structure of a first fixing frame and a fixing structure of a nozzle tensile strength test device;

[0020] Figure 4 It is a structural schematic diagram of a fixing structure of a nozzle tensile strength test device;

[0021] Figure 5 The figure is a schematic diagram of the structure of a moving structure of a nozzle tensile strength testing device.

[0022] In the figure: 1. base; 2. first fixing frame; 3. second fixing frame; 4. fixing block; 5. threaded tube; 6. fixing pin; 7. electric push rod; 8. mounting frame; 9. rotating wheel; 10. protruding block; 11. connecting frame; 12. threaded rod; 13. sliding rod; 14. notch; 15. mounting column; 16. sliding groove; 17. limiting piece; 18. connecting column; 19. hook; 20. motor. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0025] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0026] See also Figure 1-5 A nozzle tensile strength test device comprises a base 1, a first fixing frame 2 and a second fixing frame 3 are movably arranged on the base 1, a plurality of the first fixing frame 2 and the second fixing frame 3 are arranged, and a fixing structure is arranged on the first fixing frame 2 and the second fixing frame 3, and the fixing structure comprises a fixing block 4, a threaded tube 5 and a fixing needle 6;

[0027] A movable structure is provided on the first fixed frame 2 and the second fixed frame 3, and the movable structure includes an electric push rod 7, a mounting frame 8 and a rotating wheel 9. The mounting frame 8 is fixedly provided on the electric push rod 7, and the rotating wheel 9 is provided on the mounting frame 8. There are multiple rotating wheels 9. The electric push rod 7 is fixedly provided on the first fixed frame 2 and the second fixed frame 3. The rotating wheel 9 is rotatably connected to the mounting frame 8 through a bearing. A motor 20 is fixedly provided on the mounting frame 8, and the output end of the motor 20 is connected to the rotating wheel 9.

[0028] In this embodiment, the main structure of the entire test device is formed by the cooperation of the base 1 and the plurality of first fixing frames 2 and second fixing frames 3, and the nozzle is fixed to the first fixing frames 2 and the second fixing frames 3 by the fixing structure.

[0029] More specifically, when it is necessary to perform a tensile strength test on different positions of the long nozzle, the mounting frame 8 and the rotating wheel 9 are moved by extending the electric push rod 7, so that the surface of the rotating wheel 9 contacts the surface of the nozzle, and the rotating wheel 9 is rotated by the motor 20 to drive the nozzle to move.

[0030] See also Figure 1-Figure 5 As an implementation method for fixing the nozzle: a threaded tube 5 is arranged to pass through the first fixing frame 2 and the second fixing frame 3, the threaded tube 5 is arranged on the fixing block 4, and is rotatably connected to the fixing block 4 through a bearing, the inside of the threaded tube 5 is provided with a thread, the outer wall of the fixing needle 6 is provided with a thread, the threaded tube 5 and the first fixing frame 2 and the second fixing frame 3 are both threadedly connected, the fixing needle 6 is arranged inside the threaded tube 5, and is threadedly connected to the inside of the threaded tube 5, and a protruding block 10 is fixedly arranged on the fixing block 4, and a plurality of protruding blocks 10 are provided;

[0031] Specifically, after the first fixing frame 2 and the second fixing frame 3 are connected, the nozzle is placed between the first fixing frame 2 and the second fixing frame 3, and the threaded tube 5 is rotated so that the threaded tube 5 is threadedly connected to the first fixing frame 2 and the second fixing frame 3, thereby driving the fixing block 4 to extend and contact the surface of the nozzle, and the friction between the nozzle and the fixing block 4 is increased by the protruding block 10. By the threaded connection between the fixing needle 6 and the threaded tube 5, the fixing needle 6 is rotated to extend out of the fixing block 4, so that the front end of the fixing needle 6 contacts the surface of the nozzle, thereby completing the fixation of the nozzle.

[0032] Please refer to Figure 1-5 As an implementation method for stretching and quickly disassembling the nozzle: a connecting frame 11 is detachably provided on the first fixing frame 2 and the second fixing frame 3, a threaded rod 12 and a sliding rod 13 are provided on the base 1, the threaded rod 12 and the sliding rod 13 both pass through the connecting frame 11, a notch 14 matching with the threaded rod 12 is provided on the first fixing frame 2 and the second fixing frame 3, a mounting column 15 is provided on the first fixing frame 2 and the second fixing frame 3, a sliding groove 16 matching with the mounting column 15 is provided on the connecting frame 11, a thread is provided on the top of the mounting column 15, and a detachable mounting is provided on the mounting column 15. A limit plate 17 is provided, the limit plate 17 is threadedly connected to the mounting column 15, the threaded rod 12 is rotatably connected to the base 1 through a bearing, both ends of the slide rod 13 are provided with threads, the slide rod 13 is threadedly connected to the base 1, the threaded rod 12 is threadedly connected to the connecting frame 11, the slide rod 13 is slidably connected to the connecting frame 11, the upper ends of the first fixing frame 2 and the second fixing frame 3 are fixedly provided with a connecting column 18, the connecting column 18 of the second fixing frame 3 is rotatably provided with a hook 19, and the hook 19 cooperates with the connecting column 18 provided on the first fixing frame 2;

[0033] Specifically, before fixing the nozzle, the first fixing frame 2 and the second fixing frame 3 are pushed closer to each other so that the first fixing frame 2 and the second fixing frame 3 are in contact with each other, and the hook 19 of the connecting column 18 on the second fixing frame 3 is rotated. Through the cooperation between the hook 19 and the connecting column 18 on the first fixing frame 2, the first fixing frame 2 and the second fixing frame 3 are connected and cannot be separated. The threaded rod 12 is driven to rotate by an external motor provided on the base 1, so that the first fixing frame 2 and the second fixing frame 3 are driven to move through the cooperation between the threaded rod 12 and the connecting frame 11, and the two screw rods provided on the threaded rod 12 are connected to the first fixing frame 2 and the second fixing frame 3. The threads with opposite rotation directions make the combination of the two groups of first fixing frames 2 and second fixing frames 3 move away from each other, thereby completing the tensile test of the nozzle. After the test is completed, when the nozzle needs to be quickly disassembled, the hook 19 is rotated to separate the connection between the first fixing frame 2 and the second fixing frame 3, and the first fixing frame 2 and the second fixing frame 3 are pulled to move to both sides through the sliding cooperation between the mounting columns 15 provided on the first fixing frame 2 and the second fixing frame 3 and the sliding grooves 16 provided on the connecting frame 11, so that the contact between the fixing structure and the nozzle is separated, and the nozzle falls off quickly, so that the nozzle can be quickly removed.

[0034] Working principle:

[0035] When fixing the nozzle, before fixing the nozzle, push the first fixing frame 2 and the second fixing frame 3 closer together so that the first fixing frame 2 and the second fixing frame 3 contact each other, rotate the hook 19 of the connecting column 18 on the second fixing frame 3, and connect the first fixing frame 2 and the second fixing frame 3 through the cooperation between the hook 19 and the connecting column 18 on the first fixing frame 2, so that they cannot be separated. After the first fixing frame 2 and the second fixing frame 3 are connected, place the nozzle between the first fixing frame 2 and the second fixing frame 3, and rotate the threaded tube 5, which is threadedly connected to the first fixing frame 2 and the second fixing frame 3, so that the fixing block 4 is extended to contact the surface of the nozzle, and the friction between the nozzle and the fixing block 4 is increased by the protruding block 10. Through the threaded connection between the fixing needle 6 and the threaded tube 5, the fixing needle 6 is rotated to extend out of the fixing block 4, so that the front end of the fixing needle 6 contacts the surface of the nozzle, thereby completing the fixing of the nozzle.

[0036] When the test is being carried out and after the test is completed, the threaded rod 12 is driven to rotate by an external motor arranged on the base 1, so that the first fixing frame 2 and the second fixing frame 3 are driven to move through the cooperation of the threaded rod 12 and the connecting frame 11, and the two sets of first fixing frames 2 and second fixing frames 3 are separated from each other by the two threads arranged on the threaded rod 12 with opposite rotation directions, so as to complete the tensile test of the nozzle. After the test is completed, when the nozzle needs to be quickly disassembled, the hook 19 is rotated to separate the connection between the first fixing frame 2 and the second fixing frame 3, and the first fixing frame 2 and the second fixing frame 3 are pulled to move to both sides through the sliding cooperation between the mounting column 15 arranged on the first fixing frame 2 and the second fixing frame 3 and the sliding groove 16 opened on the connecting frame 11, so that the contact between the fixed structure and the nozzle is separated, and the nozzle falls off quickly, so that the nozzle can be quickly removed.

[0037] When it is necessary to perform a tensile strength test on the long nozzle at different positions, the mounting frame 8 and the rotating wheel 9 are moved by extending the electric push rod 7, so that the surface of the rotating wheel 9 contacts the surface of the nozzle, and the rotating wheel 9 is rotated by the motor 20 to drive the nozzle to move.

[0038] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A nozzle tensile strength test device, comprising a base (1), characterized in that: The base (1) is movably provided with a first fixing frame (2) and a second fixing frame (3), a plurality of the first fixing frame (2) and the second fixing frame (3) are provided, and a fixing structure is provided on the first fixing frame (2) and the second fixing frame (3), and the fixing structure comprises a fixing block (4), a threaded tube (5) and a fixing needle (6); The first fixed frame (2) and the second fixed frame (3) are both provided with a movable structure, the movable structure comprising an electric push rod (7), a mounting frame (8) and a rotating wheel (9), the mounting frame (8) being fixedly arranged on the electric push rod (7), the rotating wheel (9) being arranged on the mounting frame (8), and a plurality of the rotating wheels (9) being arranged.

2. The nozzle tensile strength test device according to claim 1, characterized in that: The threaded tube (5) is arranged to pass through the first fixing frame (2) and the second fixing frame (3); the threaded tube (5) is arranged on the fixing block (4) and is rotatably connected to the fixing block (4) via a bearing; a thread is arranged inside the threaded tube (5); and a thread is arranged on the outer wall of the fixing needle (6).

3. A nozzle tensile strength test device according to claim 2, characterized in that: The threaded tube (5) is threadedly connected to the first fixing frame (2) and the second fixing frame (3); the fixing needle (6) is arranged inside the threaded tube (5) and threadedly connected to the inside of the threaded tube (5); a protruding block (10) is fixedly arranged on the fixing block (4); and a plurality of protruding blocks (10) are arranged.

4. The nozzle tensile strength test device according to claim 1, characterized in that: The first fixing frame (2) and the second fixing frame (3) are detachably provided with a connecting frame (11), the base (1) is provided with a threaded rod (12) and a sliding rod (13), both of which pass through the connecting frame (11), and the first fixing frame (2) and the second fixing frame (3) are provided with a notch (14) that matches the threaded rod (12).

5. The nozzle tensile strength testing device according to claim 4, characterized in that: The first fixing frame (2) and the second fixing frame (3) are both provided with a mounting column (15), the connecting frame (11) is provided with a sliding groove (16) cooperating with the mounting column (15), the top end of the mounting column (15) is provided with a thread, the mounting column (15) is detachably provided with a limit plate (17), and the limit plate (17) is threadedly connected to the mounting column (15).

6. The nozzle tensile strength testing device according to claim 4, characterized in that: The threaded rod (12) is rotatably connected to the base (1) via a bearing, both ends of the slide rod (13) are provided with threads, the slide rod (13) is threadedly connected to the base (1), the threaded rod (12) is threadedly connected to the connecting frame (11), and the slide rod (13) is slidably connected to the connecting frame (11).

7. The nozzle tensile strength testing device according to claim 4, characterized in that: A connecting column (18) is fixedly provided at the upper end of each of the first fixing frame (2) and the second fixing frame (3); a hook (19) is rotatably provided on the connecting column (18) of the second fixing frame (3); and the hook (19) cooperates with the connecting column (18) provided on the first fixing frame (2).

8. The nozzle tensile strength testing device according to claim 1, characterized in that: The electric push rod (7) is fixedly mounted on a first fixed frame (2) and a second fixed frame (3); the rotating wheel (9) is rotatably connected to a mounting frame (8) via a bearing; a motor (20) is fixedly mounted on the mounting frame (8); and an output end of the motor (20) is connected to the rotating wheel (9).

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