Drop hammer test bench

Abstract

The utility model relates to the technical field of test stands, and discloses a drop hammer test stand, which solves the problem that the existing drop hammer test stand is single in function, and comprises a support frame, a test piece support seat is fixedly arranged at the bottom end in the support frame, and a plurality of limiting guide upright posts are fixedly arranged on the side edge in the support frame. A lifting traction mechanism is arranged at the top end of the supporting frame, a hoisting mechanism fixedly connected with the lifting traction mechanism and slidably arranged on the limiting guide stand column in a sleeving mode is arranged at the top end in the supporting frame, and a hammering mechanism is arranged at the bottom end of the hoisting mechanism and arranged on the limiting guide stand column in a sleeving mode. The drop hammer test bench can reduce the load of the motor, has a labor-saving effect, can reduce the resistance when the hammering mechanism descends, improves the test accuracy, can change the balance weight of the hammering mechanism, and improves the applicability.

Description

Technical Field

[0001] The utility model belongs to the technical field of test benches, in particular to a drop weight test bench. Background Art

[0002] A drop hammer test bench is used for impact tests on materials to obtain the mechanical properties of the materials. The drop hammer test benches currently in use have the problem of single function. For example, a drop hammer impact test bench disclosed in authorization announcement No. CN202947853U has a wide placement position and is installed without interference from other components, so it can be used for testing test samples of various sizes; however, when the test bench is in use, it is more laborious for the fuselage lifting mechanism to lift the hammer body, and the impact height adjustment transmission device will be subject to resistance when it is freely descending, affecting the accuracy of the hammer test. At the same time, the weight of the hammer body of the test bench is fixed, which is not convenient for adjustment and has a limited use. Therefore, the present application improves it and proposes a drop hammer test bench. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a drop weight test bench, which effectively solves the problem of single function of the existing drop weight test bench.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a drop hammer test bench, comprising a support frame, a test piece support seat is fixedly arranged at the bottom end of the support frame, a plurality of limit guide columns are fixedly arranged on the sides of the support frame, a lifting and traction mechanism is arranged at the top of the support frame, a hoisting mechanism fixedly connected to the lifting and traction mechanism and slidably sleeved on the limit guide columns is arranged at the top of the support frame, a hammer mechanism is arranged at the bottom end of the hoisting mechanism, and the hammer mechanism is sleeved on the limit guide columns.

[0005] Preferably, the lifting and traction mechanism is composed of a traction motor, a rope pulley, a guide wheel, a traction rope and a labor-saving pulley group. The traction motor and the guide wheel are both connected to the top of one side of the support frame, the rope pulley is fixedly connected to the output shaft of the traction motor, the labor-saving pulley group is connected to the top of the inside of the support frame, the lifting mechanism is fixedly connected to the bottom end of the labor-saving pulley group, and the traction rope is connected between the rope pulley, the guide wheel and the labor-saving pulley group.

[0006] Preferably, the lifting mechanism consists of a lifting plate and an electromagnetic suction cup, the lifting plate is fixedly connected to the bottom end of the labor-saving pulley block and slidably sleeved on the limit guide column, a plurality of sliding holes matching the limit guide column are opened on the lifting plate, and the electromagnetic suction cup is fixedly connected to the bottom end of the lifting plate.

[0007] Preferably, the hammer mechanism is composed of a U-shaped limit frame, an arm, a hanging arm, a hammer chassis and a plurality of counterweight plates, the arm is fixedly connected to the inside of the U-shaped limit frame, the hanging arm is fixedly connected to the middle position of the bottom end of the U-shaped limit frame, the hammer chassis is fixedly connected to the bottom end of the hanging arm, and the counterweight plate is mounted on the hanging arm.

[0008] Preferably, a plurality of arc grooves matching the limiting guide columns are provided on the side of the U-shaped limiting frame, and a plurality of universal balls matching the limiting guide columns are rotatably arranged inside the arc grooves.

[0009] Preferably, the counterweight plate is composed of a first arc-shaped plate and a second arc-shaped plate, a plurality of limit blocks are fixedly provided on one side of the first arc-shaped plate, a plurality of limit slots matching the limit blocks are provided on one side of the second arc-shaped plate, threaded hole one is provided inside the first arc-shaped plate and the second arc-shaped plate, a plurality of threaded holes two are provided on the boom, and threaded hole one and threaded hole two are connected by a screw.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] (1) During operation, by setting a lifting and traction mechanism consisting of a traction motor, a rope wheel, a guide wheel, a traction rope and a labor-saving pulley group, it can play a labor-saving role, thereby reducing the load of the traction motor and increasing the service life of the traction motor. By setting a lifting mechanism consisting of a lifting plate and an electromagnetic suction cup, the hammer mechanism can be electromagnetically attracted, which is convenient for pulling and releasing the hammer mechanism, thereby improving the convenience of the test;

[0012] (2) By setting up a hammer mechanism consisting of a U-shaped limit frame, an arm, a hanging arm, a hammer chassis and a plurality of counterweight discs, a hammer test can be carried out. By setting up an arc groove and a universal ball, the U-shaped limit frame can be limited to improve the stability of the test. At the same time, the friction between the limit guide column and the limit guide column can be reduced to avoid affecting the test results. By setting up a counterweight disc consisting of a first arc disc and a second arc disc, assembly and disassembly can be achieved, thereby changing the hammer force and improving applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0014] In the attached picture:

[0015] Figure 1 This is one of the structural schematic diagrams of the drop weight test bench of the utility model;

[0016] Figure 2 This is the second structural schematic diagram of the drop weight test bench of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the lifting and traction mechanism of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the lifting mechanism of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the U-shaped limit frame of the utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the counterweight plate of the utility model;

[0021] In the figure: 1. support frame; 2. test piece support seat; 3. limit guide column; 4. lifting and traction mechanism; 5. hoisting mechanism; 6. hammer mechanism; 7. traction motor; 8. rope pulley; 9. guide wheel; 10. traction rope; 11. labor-saving pulley block; 12. hoisting plate; 13. electromagnetic suction cup; 14. sliding hole; 15. U-shaped limit frame; 16. armature; 17. lifting arm; 18. hammer chassis; 19. counterweight plate; 20. arc groove; 21. universal ball; 22. first arc plate; 23. second arc plate; 24. limit block; 25. limit slot; 26. threaded hole one; 27. threaded hole two. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] Depend on Figure 1 and Figure 2 The utility model provides a drop hammer test bench, comprising a support frame 1, a test piece support seat 2 is fixedly arranged at the bottom end of the support frame 1, a plurality of limit guide columns 3 are fixedly arranged on the side of the support frame 1, a lifting and traction mechanism 4 is arranged at the top of the support frame 1, a hoisting mechanism 5 fixedly connected with the lifting and traction mechanism 4 and slidably sleeved on the limit guide column 3 is arranged at the top of the support frame 1, a hammer mechanism 6 is arranged at the bottom end of the hoisting mechanism 5, and the hammer mechanism 6 is sleeved on the limit guide column 3;

[0024] When in use, the workpiece is placed on the top of the test piece support seat 2, and the lifting mechanism 5 is pulled by the lifting and traction mechanism 4, and the hammer mechanism 6 is pulled by the lifting mechanism 5, so that the hammer mechanism 6 rises to a specified height, and the hammer mechanism 6 is released to perform a hammer test;

[0025] Depend on Figures 1 to 3 It is given that the lifting and traction mechanism 4 is composed of a traction motor 7, a rope wheel 8, a guide wheel 9, a traction rope 10 and a labor-saving pulley group 11. The traction motor 7 and the guide wheel 9 are both connected to the top of one side of the support frame 1, the rope wheel 8 is fixedly connected to the output shaft of the traction motor 7, the labor-saving pulley group 11 is connected to the top of the inside of the support frame 1, the lifting mechanism 5 is fixedly connected to the bottom end of the labor-saving pulley group 11, the traction rope 10 is connected between the rope wheel 8, the guide wheel 9 and the labor-saving pulley group 11, the lifting mechanism 5 is composed of a lifting plate 12 and an electromagnetic suction cup 13, the lifting plate 12 is fixedly connected to the bottom end of the labor-saving pulley group 11 and is slidably sleeved on the limit guide column 3, and a plurality of sliding holes 14 matching the limit guide column 3 are opened on the lifting plate 12, and the electromagnetic suction cup 13 is fixedly connected to the bottom end of the lifting plate 12;

[0026] When the lifting and traction mechanism 4 is working, the traction motor 7 drives the rope wheel 8 to rotate, and the traction rope 10 is tightened or released through the rope wheel 8. At this time, the labor-saving pulley group 11 can play a labor-saving role. When lifting, only one-third of the force is needed to lift the hammer mechanism 6, which effectively reduces the load of the traction motor 7 and increases the service life of the traction motor 7. The hammer mechanism 6 can be magnetically attracted by the electromagnetic suction cup 13, thereby improving the convenience of attracting and releasing the hammer mechanism 6;

[0027] Depend on Figure 1 , Figure 4 , Figure 5 and Figure 6 The hammer mechanism 6 is composed of a U-shaped limit frame 15, an armature 16, a suspension arm 17, a hammer chassis 18 and a plurality of counterweight plates 19. The armature 16 is fixedly connected to the inside of the U-shaped limit frame 15, the suspension arm 17 is fixedly connected to the middle position of the bottom end of the U-shaped limit frame 15, the hammer chassis 18 is fixedly connected to the bottom end of the suspension arm 17, and the counterweight plate 19 is sleeved on the suspension arm 17. The side of the U-shaped limit frame 15 is provided with a plurality of arc grooves 20 matching the limit guide column 3, and the internal rotation of the arc groove 20 is provided with a plurality of The universal ball 21 matches the limit guide column 3, the counterweight plate 19 is composed of a first arc plate 22 and a second arc plate 23, a plurality of limit blocks 24 are fixedly arranged on one side of the first arc plate 22, a plurality of limit slots 25 matching the limit blocks 24 are opened on one side of the second arc plate 23, a threaded hole 26 is opened inside the first arc plate 22 and the second arc plate 23, a plurality of threaded holes 27 are opened on the boom 17, and the threaded holes 26 and 27 are connected by screws;

[0028] The armature 16 is connected to the electromagnetic suction cup 13, and the hammer chassis 18 and several counterweight plates 19 are hoisted through the U-shaped limit frame 15 and the suspension arm 17. The U-shaped limit frame 15 can be vertically limited by cooperating with the limit guide column 3 through the arc groove 20 and the universal ball 21 to improve stability. At the same time, the friction between the U-shaped limit frame 15 and the limit guide column 3 is reduced to avoid affecting the test results. According to different test objects, the counterweight of the hammer mechanism 6 can be changed by installing and disassembling the counterweight plate 19.

[0029] During operation, by setting up a lifting and traction mechanism composed of a traction motor, a rope pulley, a guide wheel, a traction rope and a labor-saving pulley group, it can play a labor-saving role, thereby reducing the load of the traction motor and increasing the service life of the traction motor; by setting up a lifting mechanism composed of a lifting plate and an electromagnetic suction cup, the hammer mechanism can be electromagnetically attracted, which is convenient for traction and release of the hammer mechanism and improves the convenience of the test; by setting up a hammer mechanism composed of a U-shaped limit frame, an armature, a hanging arm, a hammer chassis and a plurality of counterweight plates, a hammer test can be carried out; by setting up an arc groove and a universal ball, the U-shaped limit frame can be limited, the stability of the test can be improved, and at the same time, the friction between the limit guide column can be reduced to avoid affecting the experimental results; by setting up a counterweight plate composed of a first arc plate and a second arc plate, assembly and disassembly can be achieved, thereby changing the hammering force and improving applicability.

Claims

1. A drop weight test bench, comprising a support frame (1), characterized in that: A test piece support seat (2) is fixedly arranged at the bottom end of the support frame (1), a plurality of limit guide columns (3) are fixedly arranged at the side of the support frame (1), a lifting and traction mechanism (4) is arranged at the top end of the support frame (1), a hoisting mechanism (5) fixedly connected to the lifting and traction mechanism (4) and slidably sleeved on the limit guide column (3) is arranged at the top end of the support frame (1), and a hammering mechanism (6) is arranged at the bottom end of the hoisting mechanism (5), and the hammering mechanism (6) is sleeved on the limit guide column (3).

2. A drop weight test bench according to claim 1, characterized in that: The lifting and traction mechanism (4) is composed of a traction motor (7), a rope wheel (8), a guide wheel (9), a traction rope (10) and a labor-saving pulley group (11); the traction motor (7) and the guide wheel (9) are both connected to the top end of one side of the support frame (1); the rope wheel (8) is fixedly connected to the output shaft of the traction motor (7); the labor-saving pulley group (11) is connected to the top end inside the support frame (1); the lifting mechanism (5) is fixedly connected to the bottom end of the labor-saving pulley group (11); and the traction rope (10) is connected between the rope wheel (8), the guide wheel (9) and the labor-saving pulley group (11).

3. A drop weight test bench according to claim 2, characterized in that: The hoisting mechanism (5) is composed of a hoisting plate (12) and an electromagnetic suction cup (13); the hoisting plate (12) is fixedly connected to the bottom end of the labor-saving pulley block (11) and is slidably sleeved on the limit guide column (3); a plurality of sliding holes (14) matching the limit guide column (3) are provided on the hoisting plate (12); and the electromagnetic suction cup (13) is fixedly connected to the bottom end of the hoisting plate (12).

4. A drop weight test bench according to claim 1, characterized in that: The hammer mechanism (6) is composed of a U-shaped limit frame (15), an armature (16), a suspension arm (17), a hammer chassis (18) and a plurality of counterweight plates (19); the armature (16) is fixedly connected to the inside of the U-shaped limit frame (15); the suspension arm (17) is fixedly connected to the middle position of the bottom end of the U-shaped limit frame (15); the hammer chassis (18) is fixedly connected to the bottom end of the suspension arm (17); and the counterweight plate (19) is sleeved on the suspension arm (17).

5. A drop weight test bench according to claim 4, characterized in that: The side of the U-shaped limiting frame (15) is provided with a plurality of arc grooves (20) matching the limiting guide columns (3), and a plurality of universal balls (21) matching the limiting guide columns (3) are rotatably arranged inside the arc grooves (20).

6. A drop weight test bench according to claim 4, characterized in that: The counterweight plate (19) is composed of a first arc-shaped plate (22) and a second arc-shaped plate (23); a plurality of limit blocks (24) are fixedly arranged on one side of the first arc-shaped plate (22); a plurality of limit slots (25) matching the limit blocks (24) are provided on one side of the second arc-shaped plate (23); threaded holes (26) are provided inside the first arc-shaped plate (22) and the second arc-shaped plate (23); a plurality of threaded holes (27) are provided on the suspension arm (17); and the threaded holes (26) and the threaded holes (27) are connected via screws.

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