Impact test device for explosion-proof equipment

Abstract

The utility model belongs to the technical field of impact test devices for explosion-proof equipment, and particularly relates to an impact test device for explosion-proof equipment, which comprises a frame, a fixed pulley is fixedly connected to the inner wall of the top end of the frame, a steel cable is arranged on the fixed pulley, one end of the steel cable is fixedly connected with a moving block, and the other end of the steel cable is connected with a traction device. A punch is arranged under the movable block, a fixed block is fixedly connected to the outer wall of the punch, and a clamping mechanism is arranged on the movable block. According to the impact test device for the explosion-proof equipment, in the process that the moving block descends and makes contact with the punch, the clamping jaw can automatically adapt to and firmly clamp the punch without manual intervention, meanwhile, clamping on the punch can be smoothly relieved at a designated position through ingenious cooperation of the inclined block and the rod body, the punch can fall down for an impact test, and the impact test efficiency is improved. The design not only simplifies the operation process, but also ensures the accuracy and safety of the test.

Description

Technical Field

[0001] This utility model relates to the technical field of impact testing devices for explosion-proof equipment, specifically an impact testing device for explosion-proof equipment. Background Technology

[0002] Impact testing equipment for explosion-proof equipment is used to simulate impact conditions that may be encountered in actual environments. It tests the impact resistance of key components such as cable entry devices or explosion-proof product housings of explosion-proof equipment to evaluate the impact resistance performance of the products.

[0003] Currently, most existing impact testing devices require manual clamping and release of the impactor. This not only consumes manpower and time, reducing testing efficiency, but also poses certain safety risks due to direct human contact with the equipment. Furthermore, manual operation is less stable and prone to problems such as untimely release, affecting the accuracy and stability of test results. Therefore, we propose an impact testing device for explosion-proof equipment. Utility Model Content

[0004] The main objective of this invention is to provide an impact testing device for explosion-proof equipment, which can solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model proposes an impact testing device for explosion-proof equipment, comprising a frame, a fixed pulley fixedly connected to the inner wall of the top of the frame, a steel cable mounted on the fixed pulley, a movable block fixedly connected to one end of the steel cable, and a traction device connected to the other end of the steel cable. The traction device consists of a drive motor and a winding roller, with the steel cable wound around the winding roller. Simultaneously, the drive motor drives the rotation of the winding roller, achieving the purpose of winding and unwinding the steel cable. A punch is located directly below the movable block, a fixed block fixedly connected to the outer wall of the punch, and a clamping mechanism is provided on the movable block. The clamping mechanism includes:

[0006] The claw is slidably connected to the inner wall of the moving block. One end of a spring is fixedly connected to the outer wall of the claw, and the other end of the spring is fixedly connected to the inner wall of the moving block. A protrusion is fixedly connected to the side wall of the claw, and the claw has an inclined surface so that the fixed plate can press it, causing the claw to move to both sides.

[0007] A rod body, which passes through the moving block and the pawl and is slidably connected to the moving block and the pawl, and a frame body is fixedly connected to the end of the rod body.

[0008] Preferably, the movable block has a through groove, and the through groove is slidably connected to the protrusion.

[0009] Preferably, a guide rod is fixedly connected to the inner wall of the frame, and the guide rod passes through the moving block and the punch and is slidably connected to the moving block and the punch.

[0010] Preferably, a motor is fixedly connected to the outer wall of the frame, and the motor is driven by a reciprocating screw.

[0011] Preferably, the reciprocating screw passes through the frame and is rotatably connected to the frame, and the reciprocating screw passes through the threaded sleeve and is threadedly connected to the threaded sleeve.

[0012] Preferably, a square sleeve is fixedly connected to the outer wall of the threaded sleeve, the square sleeve is slidably connected to the frame, and an inclined block is fixedly connected to the outer wall of the square sleeve.

[0013] This utility model provides an impact testing device for explosion-proof equipment. It has the following beneficial effects:

[0014] (1) The impact testing device of the explosion-proof equipment realizes the rapid clamping and stable release of the punch. During the process of the moving block descending and contacting the punch, the chuck can automatically adapt and firmly clamp the punch without manual intervention. At the same time, through the clever cooperation of the inclined block and the rod, the clamping of the punch can be smoothly released at the designated position, so that the punch can fall freely for impact testing. This efficient clamping and release mechanism not only simplifies the operation process, but also ensures the accuracy and safety of the test.

[0015] (2) The impact testing device for explosion-proof equipment achieves precise adjustment of the impact height through a combination of a reciprocating screw and a threaded sleeve driven by a motor. Users can set the drop height of the punch by adjusting the position of the square sleeve on the frame and recording the corresponding scale value according to the test requirements. During the test, when the moving block rises to the designated position, the inclined block will precisely trigger the release mechanism of the pawl to ensure that the punch falls freely at the predetermined height. In addition, by comparing the recorded scale value with the thickness of the punch, users can easily calculate the actual drop height. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0018] Figure 2 This is a three-dimensional front view of the present invention.

[0019] Figure 3 This is a partial three-dimensional structural diagram of the present utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the movable block and punch of this utility model;

[0021] Figure 5 This is a schematic diagram of the three-dimensional structure of the movable block of this utility model.

[0022] Explanation of icon numbers:

[0023] 1. Frame; 10. Guide rod; 11. Motor; 12. Reciprocating screw; 13. Threaded sleeve; 14. Square sleeve; 15. Wedge block; 2. Fixed pulley; 3. Steel cable; 4. Traction device; 5. Moving block; 51. Through slot; 52. Claw; 53. Protrusion; 54. Rod body; 55. Spring; 56. Frame body; 6. Punch; 61. Fixing block.

[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

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

[0026] Please see Figures 1-5This utility model proposes an impact testing device for explosion-proof equipment, comprising a frame 1, a fixed pulley 2 fixedly connected to the inner wall of the top of the frame 1, a steel cable 3 mounted on the fixed pulley 2, a movable block 5 fixedly connected to one end of the steel cable 3, and a traction device 4 connected to the other end of the steel cable 3. A punch 6 is located directly below the movable block 5, and a fixed block 61 is fixedly connected to the outer wall of the punch 6. A guide rod 10 is fixedly connected to the inner wall of the frame 1, passing through the movable block 5 and the punch 6 and slidably connected to them. A clamping mechanism is provided on the movable block 5. It should be noted that this device should withstand the impact of a test object with a mass of 1 kg falling vertically from a height H. The diameter of the punch 6 is (25 ± 0.5) μm. The diameter of the test object should not be significantly larger than the diameter of the punch 6. Therefore, the contact between the punch 6 and the impacted part of the test device is not restricted, and the impact point should be selected at what is considered the weakest part. Before the experiment, the surface of the punch 6 should be checked to see if it is intact. The test device is fixed on the base of the frame 1, where the base of the frame 1 is a steel base, and the weight of the base is at least 20KG. When the test surface is a plane, the impact direction should be perpendicular to this plane. When the test surface is not a plane, the impact direction should be perpendicular to the tangential surface in contact with the impact point. During the impact of the punch 6 on the sample, the punch 6 may "bounce" once or multiple times. It should not be removed from the sample surface before it returns to rest.

[0027] In an embodiment of this utility model, in order to clamp the punch 6, the clamping mechanism specifically includes a claw 52, ​​which is slidably connected to the inner wall of the moving block 5. The moving block 5 has a through groove 51, which is slidably connected to a protrusion 53. One end of a spring 55 is fixedly connected to the outer wall of the claw 52, ​​and the other end of the spring 55 is fixedly connected to the inner wall of the moving block 5. A protrusion 53 is fixedly connected to the side wall of the claw 52. A rod 54 passes through the moving block 5 and the claw 52 and is slidably connected to the moving block 5 and the claw 52. A frame 56 is fixedly connected to the end of the rod 54.

[0028] Furthermore, a motor 11 is fixedly connected to the outer wall of the frame 1, and a reciprocating screw 12 is driven by the motor 11. The reciprocating screw 12 passes through the frame 1 and is rotatably connected to the frame 1. The reciprocating screw 12 passes through the threaded sleeve 13 and is threadedly connected to the threaded sleeve 13. A square sleeve 14 is fixedly connected to the outer wall of the threaded sleeve 13. The square sleeve 14 is slidably connected to the frame 1. An inclined block 15 is fixedly connected to the outer wall of the square sleeve 14. A synchronous pulley is fixedly connected to the output end of the motor 11 and the end of the reciprocating screw 12, and both are connected to the synchronous belt drive.

[0029] In this utility model, when in use, such as Figure 2As shown, the outer wall of frame 1 has scale lines. First, the motor 11 is started. At this time, through the transmission of the synchronous pulley and synchronous belt, the reciprocating screw 12 rotates. At this time, the threaded sleeve 13, which is threaded to the reciprocating screw 12, will drive the square sleeve 14 and the inclined block 15 to move on the outer wall of frame 1. When the square sleeve 14 is adjusted to the specified position, the motor 11 is turned off, and the scale of the square sleeve 14 is recorded. Then, the traction device 4 is started to release the steel cable 3. At this time, the moving block 5 will move downward under the action of gravity. When the moving block 5 has moved a certain distance, it will contact the punch 6. At this time, under the action of the moving block 5, the fixed block 61 will squeeze the claw 52, ​​causing the two sets of claws 52 to move to both sides. At the same time, the spring 55 undergoes elastic deformation. When the force between the fixed block 61 and the claw 52 disappears, the claw 52 will reset under the action of the spring 55, so that the claw 52 is stuck on the outer wall of the fixed block 61. Then, the traction device is started again. 4. Retract the steel cable 3, causing the punch 6 and the moving block 5 to move upward synchronously. Then, place the explosion-proof equipment directly below the punch 6. When the moving block 5 moves upward a certain distance, the inclined block 15 will penetrate the frame 56 and compress it. When the frame 56 is compressed, the rod 54, fixedly connected to the frame 56, will pull the claw 52 to both sides. It should be noted that the diameter of the end of the rod 54 that penetrates the claw 52 is larger than the diameter of the rod 54 itself. Therefore, when the rod 54... When moving to both sides, the pawl 52 moves to both sides simultaneously. When the bottom end of the inclined block 15 contacts the outer wall of the punch 6, the engagement between the pawl 52 and the punch 6 is released, and the traction device 4 is closed. At this time, the punch 6 will move downward under the action of gravity and smash into the explosion-proof equipment, thereby testing the impact resistance of the explosion-proof equipment. It should be noted that the bottom end of the inclined block 15 is flush with the bottom end of the square sleeve 14. Then, by subtracting the thickness of the punch 6 from the recorded scale, the specific height can be calculated.

[0030] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A shock test device for explosion-protected equipment comprising a frame (1), characterized in that: The frame (1) top end inner wall is fixedly connected with a fixed pulley (2), the fixed pulley (2) is equipped with a steel cable (3), one end of the steel cable (3) is fixedly connected with a moving block (5), the other end of the steel cable (3) is connected with a traction device (4), the moving block (5) is equipped with a punch (6) below, the punch (6) outer wall is fixedly connected with a fixed block (61), the moving block (5) is equipped with a clamping mechanism, the clamping mechanism comprises: The pawl (52) is slidably connected with the inner wall of the moving block (5), one end of the pawl (52) is fixedly connected with the outer wall of the spring (55), the other end of the spring (55) is fixedly connected with the inner wall of the moving block (5), the side wall of the pawl (52) is fixedly connected with the protruding block (53); The rod body (54) penetrates the moving block (5) and the pawl (52) and is slidably connected with the moving block (5) and the pawl (52), and the end of the rod body (54) is fixedly connected with the frame body (56).

2. The impact testing device for an explosion-proof apparatus according to claim 1, characterized by: The moving block (5) is provided with a through groove (51), and the through groove (51) is slidably connected with the protruding block (53).

3. The impact testing device for an explosion-proof apparatus according to claim 1, characterized by: The inner wall of the frame (1) is fixedly connected with a guide rod (10), the guide rod (10) penetrates the moving block (5) and the punch (6) and is slidably connected with the moving block (5) and the punch (6).

4. The impact testing device for an explosion-proof apparatus according to claim 1, characterized by: The outer wall of the frame (1) is fixedly connected with a motor (11), and the motor (11) is drivingly connected with a reciprocating screw (12).

5. The impact testing device for an explosion-proof apparatus according to claim 4, characterized by: The reciprocating screw (12) penetrates the frame (1) and is rotatably connected with the frame (1), and the reciprocating screw (12) penetrates the threaded sleeve (13) and is threadedly connected with the threaded sleeve (13).

6. The impact testing device for an explosion-proof apparatus according to claim 5, characterized by: The outer wall of the threaded sleeve (13) is fixedly connected with a square sleeve (14), the square sleeve (14) is slidably connected with the frame (1), and the outer wall of the square sleeve (14) is fixedly connected with an inclined block (15).

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