Drop hammer impact test equipment

Abstract

The utility model discloses drop hammer impact test equipment, which relates to the technical field of impact tests and comprises a placing groove, two supporting rods are fixedly mounted at the top of the placing groove, a top plate is fixedly mounted at the top ends of the two supporting rods, a first double-shaft motor is fixedly mounted at the top of the top plate, and a second double-shaft motor is fixedly mounted at the top of the first double-shaft motor. Winding rods are fixedly mounted on two output shafts of the first double-shaft motor correspondingly, pull ropes are wound on the two winding rods correspondingly, the two pull ropes penetrate through the top plate and are slidably connected with the top plate, a mounting box is fixedly mounted at the bottom ends of the two pull ropes, and a fixed U-shaped plate is arranged in the mounting box; and two rotating rods are rotationally mounted in the mounting box. The drop hammer impact test equipment provided by the utility model has the advantages that the use is convenient, and proper impact force can be adjusted according to different samples.

Description

Technical Field

[0001] The utility model relates to the technical field of impact test, in particular to a drop hammer impact test device. Background Technique

[0002] The drop hammer impact test device is mainly used to test the impact resistance of products. During the test, the specimen is first fixed below the drop hammer, and then the drop hammer is lifted to a preset height by the clamping structure on the drop hammer impact test device, and then the clamping structure is opened to make the drop hammer freely fall and impact the specimen. The degree of deformation of the specimen after being impacted can reflect its impact resistance.

[0003] However, the lifting height of the clamping structure on the existing drop hammer impact test device is fixed, resulting in a fixed impact force of the drop hammer impact test device on the sample each time. Therefore, the drop hammer impact test device cannot adjust an appropriate impact force according to different specimens for the impact test, which has certain limitations. Content of the Utility Model

[0004] The purpose of the utility model is to provide a drop hammer impact test device to solve at least any one of the problems mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A drop hammer impact test device includes a placement groove. Two support rods are fixedly installed at the top of the placement groove. The top ends of the two support rods are fixedly installed with a top plate. A first double-shaft motor is fixedly installed on the top of the top plate. Winding rods are respectively fixedly installed on the two output shafts of the first double-shaft motor. Pulling ropes are respectively wound on the two winding rods, and both pulling ropes penetrate through the top plate and are slidably connected to the top plate. The bottom ends of the two pulling ropes are fixedly installed with an installation box. A fixed U-shaped plate is arranged in the installation box. Two rotating rods are rotatably installed in the installation box. A worm gear and a rotating U-shaped plate are respectively fixedly installed and sleeved on the two rotating rods. The two worm gears are respectively located in the corresponding rotating U-shaped plates, and one side of each of the two rotating U-shaped plates extends into the fixed U-shaped plate. A second double-shaft motor is fixedly installed on the inner wall of the top of the installation box. Worms are respectively fixedly installed on the two output shafts of the second double-shaft motor, and the two worms are respectively meshed with the corresponding worm gears. An installation plate is fixedly installed at the bottom of the fixed U-shaped plate. A drop hammer body is fixedly installed on the top of the installation plate.

[0006] Preferably, cross plates are respectively fixedly installed on the outer walls of both sides of the installation box. Two guiding and stabilizing rods are fixedly installed at the bottom of the top plate, and the two guiding and stabilizing rods respectively penetrate through the two cross plates and the installation plate and are respectively slidably connected to the cross plates and the installation plate.

[0007] Preferably, two through holes are formed in the top plate, linear bearings are fixedly installed in the two through holes respectively, and the two pull ropes pass through the linear bearings and are respectively slidably connected to the inner walls of the two linear bearings.

[0008] Preferably, two stabilizing plates are fixedly installed on the top of the top plate, and the two stabilizing plates are respectively rotatably connected to the two winding rods.

[0009] Preferably, two rotating grooves are respectively formed in the inner walls on both sides of the installation box, both ends of the two rotating rods respectively extend into the two rotating grooves and are respectively fixedly sleeved with bearings, and the outer rings of the two bearings are respectively fixedly connected to the inner walls of the two rotating grooves.

[0010] Preferably, the top plate is fixedly installed at the tops of the two support rods by welding.

[0011] Preferably, a plurality of friction stripes are formed at the bottom of the placement groove.

[0012] The beneficial effects of the present utility model are as follows:

[0013] In the present utility model, first, the product is placed in the placement groove. By rotating the second double-shaft motor, the rotating U-shaped plate is driven to rotate downward and finally separated from the fixed U-shaped plate. Under the action of gravity, the fixed U-shaped plate and the drop hammer body perform free fall motion to impact the product, thereby completing the impact test of the product.

[0014] When it is necessary to perform impact tests on different products with different impact force magnitudes, first start the first double-shaft motor to drive the two winding rods to rotate to wind up the pull ropes, thereby driving the drop hammer body to move upward to different position heights. Then, through the above operations, the two rotating U-shaped plates are rotated to make the drop hammer body fall. Thus, the device can perform impact tests on products by releasing the drop hammer body at different heights to generate different impact forces, greatly improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of a preferred embodiment of the drop hammer impact test device provided by the present utility model;

[0016] Figure 2 is Figure 1 the enlarged schematic view of part A shown in;

[0017] Figure 3 is Figure 1 the upward view assembly exploded view of the cross plate, the fixed U-shaped plate and the rotating U-shaped plate shown in;

[0018] Figure 4 is a perspective view of the drop hammer impact test device provided by the present utility model.

[0019] In the figure: 1, placing groove; 2, support rod; 3, top plate; 4, first double-shaft motor; 5, winding rod; 6, stabilizing plate; 7, pulling rope; 8, mounting box; 9, second double-shaft motor; 10, worm; 11, rotating rod; 12, rotating U-shaped plate; 13, fixed U-shaped plate; 14, worm gear; 15, mounting plate; 16, drop hammer body; 17, cross plate; 18, guiding and stabilizing rod. Specific embodiments

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] The present invention provides as Figures 1-4A drop hammer impact test device shown in the figure includes a placement groove 1. In order to make the device more stable when placed on the ground, a number of friction stripes are provided at the bottom of the placement groove 1. Two support rods 2 are fixedly installed at the top of the placement groove 1. The tops of the two support rods 2 are fixedly installed with a top plate 3. The top plate 3 is fixedly installed at the tops of the two support rods 2 by welding. A first double-shaft motor 4 is fixedly installed on the top of the top plate 3. Winding rods 5 are respectively fixedly installed on the two output shafts of the first double-shaft motor 4. In order to support the winding rods 5 and make the winding rods 5 rotate more stably, two stabilizing plates 6 are fixedly installed on the top of the top plate 3. The two stabilizing plates 6 are respectively rotationally connected to the two winding rods 5. Pulling ropes 7 are respectively wound on the two winding rods 5, and the two pulling ropes 7 both penetrate through the top plate 3 and are slidably connected to the top plate 3. In order to reduce the friction between the pulling ropes 7 and the top plate 3, thereby reducing the wear degree of the pulling ropes 7 and increasing the service life of the pulling ropes 7, two through holes are provided on the top plate 3. Linear bearings are respectively fixedly installed in the two through holes. The two pulling ropes 7 penetrate through the linear bearings and are respectively slidably connected to the inner walls of the two linear bearings. The bottom ends of the two pulling ropes 7 are fixedly installed with an installation box 8. A fixed U-shaped plate 13 is arranged in the installation box 8. Two rotating rods 11 are rotatably installed in the installation box 8. In order to rotatably install the rotating rods 11 in the installation box 8, two rotating grooves are respectively provided on the inner walls of the two sides of the installation box 8. The two ends of the two rotating rods 11 respectively extend into the two rotating grooves and are respectively fixedly sleeved with bearings, and the outer rings of the two bearings are respectively fixedly connected to the inner walls of the two rotating grooves. The bearings make the rotating rods 11 rotate more stably in the installation box 8. Worms 14 and rotating U-shaped plates 12 are respectively fixedly installed and sleeved on the two rotating rods 11. The two worms 14 are respectively located in the corresponding rotating U-shaped plates 12, and one side of each of the two rotating U-shaped plates 12 extends into the fixed U-shaped plate 13. A second double-shaft motor 9 is fixedly installed on the inner wall of the top of the installation box 8. Worms 10 are respectively fixedly installed on the two output shafts of the second double-shaft motor 9, and the two worms 10 are respectively meshed with the corresponding worms 14. A mounting plate 15 is fixedly installed at the bottom of the fixed U-shaped plate 13. A drop hammer body 16 is fixedly installed on the top of the mounting plate 15.

[0022] In order to limit the cross plate 17 and the mounting plate 15 and make the installation box 8 and the drop hammer body 16 more stable when falling, cross plates 17 are respectively fixedly installed on the outer walls of the two sides of the installation box 8. Two guiding and stabilizing rods 18 are fixedly installed at the bottom of the top plate 3, and the two guiding and stabilizing rods 18 respectively penetrate through the two cross plates 17 and the mounting plate 15 and are respectively slidably connected to the cross plates 17 and the mounting plate 15.

[0023] The working principle of the drop hammer impact test equipment provided by the utility model is as follows: In the initial state, both rotating U-shaped plates 12 are in a horizontal state and in contact with the inner wall of the top of the fixed U-shaped plate 13. Due to the self-locking property between the worm gear 14 and the worm 10, the worm gear 14 cannot drive the worm 10 to rotate, and the worm 10 locks the worm gear 14. Therefore, the rotating U-shaped plate 12 will not rotate and lift the fixed U-shaped plate 13. When the device is needed to conduct an impact test on a product, first place the product into the placement groove 1, start the second double-shaft motor 9. The second double-shaft motor 9 rotates to drive the worm 10 to rotate, the worm 10 rotates to drive the worm gear 14 to rotate, the worm gear 14 rotates to drive the rotating rod 11 to rotate, and the rotating rod 11 rotates to drive the rotating U-shaped plate 12 to rotate downward and finally separate from the fixed U-shaped plate 13. Under the action of gravity, the fixed U-shaped plate 13 and the drop hammer body 16 perform free fall motion to impact the product, thereby completing the impact test of the product. When it is necessary to conduct impact tests with different impact force magnitudes on different products, first start the first double-shaft motor 4. The first double-shaft motor 4 rotates to drive the two winding rods 5 to rotate, the winding rods 5 rotate to wind up the pull rope 7 and thereby drive the installation box 8 to move upward. The installation box 8 moves to drive the rotating rod 11, the rotating U-shaped plate 12, and the fixed U-shaped plate 13 to move upward, and finally drive the drop hammer body 16 to move upward to different position heights. Then, through the above operations, the two rotating U-shaped plates 12 are rotated to make the drop hammer body 16 fall. Thus, the device can conduct impact tests on products by releasing the drop hammer body 16 at different heights to generate different impact forces, greatly improving the applicability of the device.

[0024] Compared with the related technology, the drop hammer impact test equipment provided by the utility model has the following beneficial effects:

[0025] The utility model provides a drop hammer impact test equipment. First, place the product into the placement groove 1. The second double-shaft motor 9 rotates to drive the rotating U-shaped plate 12 to rotate downward and finally separate from the fixed U-shaped plate 13. Under the action of gravity, the fixed U-shaped plate 13 and the drop hammer body 16 perform free fall motion to impact the product, thereby completing the impact test of the product.

[0026] When it is necessary to conduct impact tests with different impact force magnitudes on different products, first start the first double-shaft motor 4 to drive the two winding rods 5 to rotate to wind up the pull rope 7 and thereby drive the drop hammer body 16 to move upward to different position heights. Then, through the above operations, the two rotating U-shaped plates 12 are rotated to make the drop hammer body 16 fall. Thus, the device can conduct impact tests on products by releasing the drop hammer body 16 at different heights to generate different impact forces, greatly improving the applicability of the device.

[0027] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A drop weight impact test device, comprising a placement slot, characterized in that: Two supporting rods are fixedly installed on the top of the placement groove, and a top plate is fixedly installed on the top of the two supporting rods, and a first double-axis motor is fixedly installed on the top of the top plate, and winding rods are respectively fixedly installed on the two output shafts of the first double-axis motor, and pull ropes are respectively wound on the two winding rods, and the two pull ropes pass through the top plate and are slidably connected to the top plate, and an installation box is fixedly installed on the bottom ends of the two pull ropes, a fixed U-shaped plate is arranged in the installation box, and two rotating rods are rotatably installed in the installation box, and worm gears and rotating U-shaped plates are respectively fixedly installed on the two rotating rods, and the two worm gears are respectively located in the corresponding rotating U-shaped plates, and one side of the two rotating U-shaped plates extends into the fixed U-shaped plate, and a second double-axis motor is fixedly installed on the top inner wall of the installation box, and worms are respectively fixedly installed on the two output shafts of the second double-axis motor, and the two worms are respectively meshed with the corresponding worm gears, and a mounting plate is fixedly installed on the bottom of the fixed U-shaped plate, and a drop hammer body is fixedly installed on the top of the mounting plate.

2. A drop weight impact test device according to claim 1, characterized in that: The outer walls on both sides of the installation box are respectively fixedly installed with transverse plates, and the bottom of the top plate is fixedly installed with two guide stabilizing rods, and the two guide stabilizing rods respectively penetrate the two transverse plates and the installation plate and are respectively slidably connected with the transverse plates and the installation plate.

3. A drop weight impact test device according to claim 1, characterized in that: The top plate is provided with two through holes, in which linear bearings are respectively fixedly installed, and the two pull ropes penetrate the linear bearings and are respectively slidably connected with the inner walls of the two linear bearings.

4. The drop weight impact test equipment according to claim 1, characterized in that: Two stabilizing plates are fixedly mounted on the top of the top plate, and the two stabilizing plates are rotatably connected to the two winding rods respectively.

5. The drop weight impact test equipment according to claim 1, characterized in that: Two rotation grooves are respectively provided on the inner walls on both sides of the installation box, the two ends of the two rotation rods respectively extend into the two rotation grooves and are respectively fixedly sleeved with bearings, and the outer rings of the two bearings are respectively fixedly connected to the inner walls of the two rotation grooves.

6. The drop weight impact test equipment according to claim 1, characterized in that: The top plate is fixedly mounted on the top ends of the two support rods by welding.

7. The drop weight impact test equipment according to claim 1, characterized in that: A plurality of friction stripes are arranged at the bottom of the placement groove.

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