Constrained release simulation test device

Abstract

The utility model relates to the technical field of pinning and releasing, and provides a pinning and releasing simulation test device which comprises a test protection box, a sealing door and a clamping block, a supporting base is installed at the bottom end of the test protection box, movable blocks are symmetrically arranged on the side walls of the supporting base, a movable groove is formed in the outer wall of the supporting base, and the clamping block is arranged in the movable groove. A second servo motor is installed on the inner wall of the bottom end of the test protection box, a driving shaft of the second servo motor is connected with a rotating rod through a movable groove, pull rods are symmetrically and movably installed at the two ends of the rotating rod through bearings, clamping blocks are movably installed at the ends, away from the rotating rod, of the pull rods, and limiting blocks are arranged at the bottom ends of the clamping blocks. The clamping block is movably installed on the outer wall of the top end of the movable block through a limiting block, a sealing door is movably installed on the side wall of the test protection box through a bearing, and the problems that in the prior art, a workpiece cannot be released in time, the flying track of the workpiece is affected by tension generated by straightening a rope, and wire arrangement is inconvenient are solved.

Description

Technical Field

[0001] This utility model relates to the field of restraint and release technology, specifically to a restraint and release simulation test device. Background Technology

[0002] Constraint-release simulation test devices are commonly used to simulate and evaluate the behavior of objects under stress, particularly in engineering, architecture, and materials science. The technical background of these devices involves principles and methods from multiple disciplines, including materials mechanics, structural engineering, and experimental mechanics.

[0003] Patent specification CN 105486493A discloses a restraint-release simulation test device. The device comprises a test fixture with an internal cavity for mounting a test piece; a tension system connected to the upper part of the fixture to simulate thrust during takeoff; a release mechanism connected to the lower part to control the release of the test fixture; a protection system to protect the test fixture and the test piece; and a measurement system to measure the response of the test piece during the test. The method involves installing the test piece, connecting the tension system and the release mechanism sequentially, and estimating a predetermined loading force. Upon receiving an unlocking signal, the release mechanism suddenly unlocks, releasing the lower end of the test fixture. The protection system restricts the test piece from continuing flight, and the measurement system records the overload, vibration, and strain responses at various measurement points on the test piece during the test. The advantages include: comprehensive simulation of overload and transient vibration during restraint-release of single-unit and section-level test pieces; low investment cost; and realistic simulation.

[0004] However, in implementing the relevant technology, the above-mentioned restraint and release simulation test device has the following problems: the release structure of the device locks the test fixture with a rope. During operation, the release mechanism may not be able to unlock and release the workpiece in time. At the same time, the tension generated when the rope is straightened may affect the flight trajectory of the workpiece. Moreover, the device does not have a corresponding rope winding mechanism, which makes it inconvenient to manage the rope. Therefore, we propose a restraint and release simulation test device. Utility Model Content

[0005] This invention proposes a restraint and release simulation test device, which solves the problems in related technologies such as the inability to receive and release workpieces in a timely manner, the tension generated by the straightening of the rope affecting the trajectory of the workpiece's flight, and the inconvenience of rope management.

[0006] The technical solution of this utility model is as follows:

[0007] A restraint-release simulation test device includes a test protection box, a sealed door, and clamping blocks. A support base is installed at the bottom of the test protection box. Movable blocks are symmetrically arranged on the side walls of the support base. A movable groove is provided on the outer wall of the support base. A second servo motor is installed on the inner wall of the bottom of the test protection box. The drive shaft of the second servo motor is connected to a rotating rod through the movable groove. Pull rods are symmetrically and movably installed at both ends of the rotating rod via bearings. Clamping blocks are movably installed at the ends of the pull rods away from the rotating rods. A limit block is provided at the bottom of each clamping block. The clamping blocks are movably installed on the outer wall of the top of the movable blocks via the limit block. A sealed door is movably installed on the side wall of the test protection box via bearings.

[0008] Preferably, the outer wall at the top of the movable block is provided with a limiting groove, the cross-section of the limiting block is trapezoidal, and the limiting block and the limiting groove fit together.

[0009] Preferably, the clamping block has an arched structure, and the top of the clamping block is provided with rounded corners.

[0010] Preferably, the top of the test protection box is provided with a reserved hole, and a first servo motor is installed on the outer wall of the top of the test protection box. The output shaft of the first servo motor is connected to a winding wheel, and a steel wire rope is installed on the outer wall of the winding wheel.

[0011] Preferably, a pulley is movably mounted at the center of the top of the test protection box via a mounting block, and one end of the steel wire rope extends through a reserved hole on the outer wall of the pulley into the interior of the test protection box and is connected to the test fixture.

[0012] Preferably, a tension sensor is installed at the top of the test fixture, and a limit ring is provided on the outer wall of the test fixture.

[0013] Preferably, the test fixture is a cavity, and the test piece is installed on the inner wall of the test fixture.

[0014] Preferably, the outer wall of the sealed door is provided with tempered glass, and a handle is welded to the side wall of the sealed door.

[0015] The working principle and beneficial effects of this utility model are as follows:

[0016] In this invention, a test protection box, a sealed door, and a second servo motor are used. The test protection box is opened using a handle on the outer wall of the sealed door, and the test piece is installed inside the test fixture. The second servo motor is started, which drives the rotating rod to rotate. The rotating rod then drives the pull rod, causing the pull rod to rotate around one end of its axis and pull the clamping block. The limiting block and the limiting groove limit the clamping block, causing it to move inward along the limiting groove at the top of the movable block, clamping it above the limiting ring and thus fixing the test fixture. This structure can stably clamp and fix the test fixture.

[0017] In this invention, a test fixture, a tension sensor, and a winding wheel are used. The winding wheel drives a first servo motor to rotate and wind up the wire rope. At the same time, a pulley is used to make the first servo motor work more efficiently when winding the wire rope, generating tension on the test fixture. By observing the data from the tension sensor, once the tension reaches the test level, the loading test begins. When it is confirmed that there is load redundancy, the first servo motor winds up to increase the load on the test fixture. After the workers have left, the rotating rod is reversed to expand the clamping blocks and loosen the test fixture, allowing the test piece to undergo a traction release test inside the test fixture. This structure facilitates the winding of the wire rope and can provide higher tension to the test fixture. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a schematic diagram of the main structure of the device proposed in this utility model;

[0020] Figure 2 This is a schematic diagram of the sealing door structure proposed in this utility model;

[0021] Figure 3 This is a schematic diagram of the clamping block structure proposed in this utility model;

[0022] Figure 4 This is a schematic diagram of the limiting groove structure proposed in this utility model;

[0023] Figure 5 This is a schematic diagram of the pulley structure proposed in this utility model.

[0024] In the diagram: 1. Test protection box; 2. Sealed door; 3. Support base; 4. Movable block; 5. Clamping block; 6. Test fixture; 7. Limiting ring; 8. Tension sensor; 9. Rewinding wheel; 10. First servo motor; 11. Steel wire rope; 12. Mounting block; 13. Pulley; 14. Reserved hole; 15. Second servo motor; 16. Rotating rod; 17. Pull rod; 18. Limiting block; 19. Limiting groove; 20. Movable groove; 21. Test piece. Detailed Implementation

[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0026] Example 1: As Figures 1-5 As shown, this embodiment proposes a restraint and release simulation test device, including a test protection box 1, a sealing door 2, and clamping blocks 5. A support base 3 is installed at the bottom of the test protection box 1. Movable blocks 4 are symmetrically arranged on the side wall of the support base 3. A movable groove 20 is provided on the outer wall of the support base 3. A second servo motor 15 is installed on the inner wall of the bottom of the test protection box 1. The drive shaft of the second servo motor 15 is connected to a rotating rod 16 through the movable groove 20. Pull rods 17 are symmetrically and movably installed at both ends of the rotating rod 16 through bearings. Clamping blocks 5 are movably installed at the ends of the pull rods 17 away from the rotating rods 16. A limit block 18 is provided at the bottom of the clamping block 5. The clamping block 5 is movably installed on the outer wall of the top of the movable block 4 through the limit block 18. A sealing door 2 is movably installed on the side wall of the test protection box 1 through bearings.

[0027] In this embodiment, a limiting groove 19 is provided on the outer wall of the top of the movable block 4, and the cross-section of the limiting block 18 is trapezoidal, with the limiting block 18 and the limiting groove 19 fitting together.

[0028] In this embodiment, the clamping block 5 has an arched structure, and the top of the clamping block 5 is provided with rounded corners.

[0029] In this embodiment, the outer wall of the sealing door 2 is provided with tempered glass, and a handle is welded to the side wall of the sealing door 2.

[0030] Specific examples Figure 1 , Figure 3 and Figure 4 As shown, when using this structure, open the test protection box 1, install the test piece 21 inside the test fixture 6, start the second servo motor 15, use the second servo motor 15 to drive the rotating rod 16 to rotate, and then drive the pull rod 17 through the rotating rod 16, so that the pull rod 17 rotates with one end as the axis and pulls the clamping block 5. The limiting effect of the limiting block 18 and the limiting groove 19 on the clamping block 5 makes it move inward along the limiting groove 19 at the top of the movable block 4, so that it is clamped above the limiting ring 7, thereby fixing the test fixture 6. This structure can form a stable clamping and fixing of the test fixture 6.

[0031] Example 2: The top of the test protection box 1 is provided with a reserved hole 14. The outer wall of the top of the test protection box 1 is equipped with a first servo motor 10. The output shaft of the first servo motor 10 is connected to a winding wheel 9. The outer wall of the winding wheel 9 is equipped with a wire rope 11.

[0032] In this embodiment, a pulley 13 is movably mounted at the center of the top of the test protection box 1 via a mounting block 12. One end of the steel wire rope 11 extends through the outer wall of the pulley 13 via a reserved hole 14 to the interior of the test protection box 1 and is connected to the test fixture 6.

[0033] In this embodiment, a tension sensor 8 is installed at the top of the test fixture 6, and a limit ring 7 is provided on the outer wall of the test fixture 6.

[0034] In this embodiment, the test fixture 6 is a cavity, and the test piece 21 is installed on the inner wall of the test fixture 6.

[0035] Specific examples Figure 1 , Figure 2 and Figure 5 As shown, when using this structure, the winding wheel 9 drives the first servo motor 10 to rotate and wind the wire rope 11. At the same time, the pulley 13 makes it easier for the first servo motor 10 to wind the wire rope 11, generating tension on the test fixture 6. By observing the data of the tension sensor 8, when the tension reaches the test level, the loading test is started. When it is confirmed that there is loading redundancy, the first servo motor 10 winds up to increase the load of the wire rope 11 on the test fixture 6. After the workers have left, the reverse rotating rod 16 causes the clamping block 5 to expand and loosen the test fixture 6, so that the test piece 21 can be subjected to traction release test inside the test fixture 6. This structure facilitates the winding of the wire rope 11 and can provide higher tension to the test fixture 6.

[0036] Working principle: In use, the test protection box 1 is opened through the handle on the outer wall of the sealed door 2. The test piece 21 is installed inside the test fixture 6. The second servo motor 15 is started, which drives the rotating rod 16 to rotate. The rotating rod 16 then drives the pull rod 17, causing the pull rod 17 to rotate around one end of its axis and pull the clamping block 5. The limiting block 18 and the limiting groove 19 limit the clamping block 5, causing it to move inward along the limiting groove 19 at the top of the movable block 4, clamping it above the limiting ring 7 to fix the test fixture 6. The sealed door 2 is closed, and the winding wheel 9 is started. The winding wheel 9 drives the first servo motor 10 to rotate, winding the wire rope 11. At the same time, the pulley 13 makes it easier for the first servo motor 10 to wind the wire rope 11, generating tension on the test fixture 6. The tension sensor 8 is observed to determine the tension level. When the force reaches the test level, the loading test begins. Once loading redundancy is confirmed, the first servo motor 10 winds up the increased steel wire rope 11 to apply load to the test fixture 6. After the workers have dispersed, the rotating rod 16 is reversed to loosen the clamping block 5 and release the test fixture 6, allowing the test piece 21 to undergo a traction release test inside the test fixture 6. The measurement system records the overload, vibration, and strain at various measurement points of the test piece 21 during the test, and the experimental data is collected by the data acquisition device. This device not only provides a stable clamping and fixing for the test fixture 6, but also avoids the tension caused by the extension and straightening of the rope during the traction release test, which would affect the flight trajectory of the test piece 21 and thus the experimental data. Furthermore, this device does not have a corresponding rope winding mechanism, making it inconvenient to manage the rope.

[0037] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A restraint-release simulation test device, comprising a test protection box (1), a sealing door (2), and a clamping block (5), characterized in that: The bottom of the test protection box (1) is equipped with a support base (3). The side wall of the support base (3) is symmetrically provided with movable blocks (4). The outer wall of the support base (3) is provided with a movable groove (20). The inner wall of the bottom of the test protection box (1) is equipped with a second servo motor (15). The drive shaft of the second servo motor (15) is connected to a rotating rod (16) through the movable groove (20). The two ends of the rotating rod (16) are symmetrically and movably equipped with pull rods (17) through bearings. The end of the pull rod (17) away from the rotating rod (16) is movably equipped with a clamping block (5). The bottom end of the clamping block (5) is provided with a limit block (18). The clamping block (5) is movably installed on the outer wall of the top of the movable block (4) through the limit block (18). The side wall of the test protection box (1) is movably equipped with a sealing door (2) through bearings.

2. The restraint-release simulation test device according to claim 1, characterized in that, The outer wall of the top of the movable block (4) is provided with a limiting groove (19), the cross-section of the limiting block (18) is trapezoidal, and the limiting block (18) and the limiting groove (19) fit together.

3. The restraint-release simulation test device according to claim 1, characterized in that, The clamping block (5) has an arched structure, and the top of the clamping block (5) is provided with rounded corners.

4. The restraint-release simulation test device according to claim 1, characterized in that, The test protection box (1) has a reserved hole (14) at the top. A first servo motor (10) is installed on the outer wall of the top of the test protection box (1). The output shaft of the first servo motor (10) is connected to a winding wheel (9). A wire rope (11) is installed on the outer wall of the winding wheel (9).

5. The restraint-release simulation test device according to claim 4, characterized in that, The test protection box (1) has a pulley (13) movably mounted at the center of the top of the box via a mounting block (12). One end of the wire rope (11) extends through the outer wall of the pulley (13) via a reserved hole (14) to the inside of the test protection box (1) and is connected to the test fixture (6).

6. The restraint-release simulation test device according to claim 5, characterized in that, A tension sensor (8) is installed at the top of the test fixture (6), and a limit ring (7) is provided on the outer wall of the test fixture (6).

7. The restraint-release simulation test device according to claim 6, characterized in that, The test fixture (6) is a cavity, and the test piece (21) is installed on the inner wall of the test fixture (6).

8. The restraint-release simulation test device according to claim 1, characterized in that, The outer wall of the sealed door (2) is provided with tempered glass, and a handle is welded to the side wall of the sealed door (2).

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