A drop hammer test machine

Abstract

This invention relates to the field of engineering mechanics testing technology, and in particular to a drop hammer testing machine, comprising a main base, a flip-type control lever mounted on the upper end of the main base, a counterweight, an electric lift, and an electric drive wheel. The drop hammer testing machine of this invention uses the lever principle to adjust the center of gravity of the flip-type control lever, thereby controlling the descent of a detachable metal hammer. It has low requirements for the overall height of the equipment and lower power consumption than vertical equipment. The internal limiting support rod, controlled by the electric lift, extends and retracts within the circular mounting through-hole at the center of the counterweight, allowing for automatic loading, unloading, and adjustment of the counterweight quantity. The operation is simple and convenient. A lateral electromagnetic bracket assembles and fixes the lateral counterweight mechanism, which not only secures the loading and unloading equipment but also magnetically limits one end of the flip-type control lever, improving stability.

Description

Technical Field

[0001] This invention relates to the field of engineering mechanics testing technology, and in particular to a drop hammer testing machine. Background Technology

[0002] A drop weight testing machine is a physical performance testing instrument used in the field of mechanical engineering. It can be used to determine the impact resistance of various pipes and plates. Current drop weight testing machines mainly employ a vertical structure design, adjusting the impact force by changing the height. This design has high height requirements, results in significant energy loss, and has a small impact area, leading to incomplete measurement data. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an improved drop hammer test machine to solve the problems existing in the above-mentioned background technology, which are that the current drop hammer test machines have high requirements for height, large kinetic energy loss, and small impact surface range, resulting in incomplete measurement data.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a drop hammer test machine, including a main base, a flip-type control rod installed on the upper end of the main base, a counterweight, an electric lift, and an electric drive wheel. The upper end of the flip-type control rod is fixedly equipped with a top sliding guide rail. A sliding adjustment seat for installing the counterweight and the electric lift is slidably installed inside the top sliding guide rail. A detachable metal hammer is fixedly installed at the top of the lower end of the flip-type control rod. A lateral counterweight mechanism for stacking counterweights is fixedly installed on the outer side of the main base through a lateral electromagnetic bracket. The electric drive wheel is installed inside the flip-type control rod through a lateral shock-absorbing seat. The electric drive wheel is connected to the sliding adjustment seat through an internal conveyor belt mechanism located inside the flip-type control rod.

[0005] The sliding adjustment seat is movably mounted with a lateral transmission wheel at the bottom of the top sliding guide rail assembly surface. A top telescopic blind hole for installing an electric lift is opened on the inner top surface of the sliding adjustment seat. An internal limiting support rod controlled by the electric lift is slidably mounted inside the upper opening of the top telescopic blind hole.

[0006] The counterweight has a circular assembly through hole at its center that matches the internal limiting support rod, and the lower end of the circular assembly through hole has an flared hole that gradually increases in size from top to bottom.

[0007] The lateral counterweight mechanism includes an outer frame fixed to a lateral electromagnetic support, a lateral guardrail fixed to the outer side of the outer frame, and multiple inclined support plates fixed inside the outer frame.

[0008] The inclined support plate has an internal loading and unloading port that cooperates with the internal limiting support rod.

[0009] The lower surface of the counterweight has downward-protruding bottom guide strips on both sides of the circular assembly through hole.

[0010] The upper end of the flip-type control lever has lateral transmission grooves on both sides for installing the internal conveyor belt mechanism. The internal conveyor belt mechanism includes a main drive wheel that is movably sleeved on the outside of the electric drive wheel, a secondary driven wheel that is movably assembled inside the lateral transmission groove, and a flexible transmission belt that is sleeved on the outside of the main drive wheel and the secondary driven wheel. The two sides of the flexible transmission belt are respectively fixed to the outside of the sliding adjustment seat.

[0011] The inner walls on both sides of the lateral transmission groove are provided with lateral transition grooves for internal installation of elastic lateral damping seats.

[0012] An external protective mesh frame is fixed to the upper surface of the sliding adjustment seat around the counterweight block, and the lateral guardrail is arranged opposite to the lateral opening of the external protective mesh frame.

[0013] An infrared positioning module is fixed on the inner side of the internal loading and unloading port.

[0014] The beneficial effects of this invention are:

[0015] (1) The drop hammer test machine of the present invention uses the lever principle to adjust the center of gravity of the flip-type control rod, thereby controlling the detachable metal hammer to fall. The requirements for the height of the entire equipment are not high, and the power consumption requirements are less than those of the vertical equipment.

[0016] (2) The internal limit support rod controlled by the electric lift extends and retracts inside the circular assembly through hole at the center of the counterweight, thereby automatically loading, unloading, increasing or decreasing the number of counterweights. The operation is simple and convenient.

[0017] (3) The lateral counterweight mechanism is assembled and fixed by the lateral electromagnetic bracket, which can not only fix the loading and unloading equipment, but also magnetically limit one end of the flip-type control rod to improve stability.

[0018] (4) The electric drive wheel is installed inside the flip-type control rod through the side shock absorber seat, and is connected to the sliding adjustment seat through the internal conveyor belt mechanism. This not only reduces the impact of shock on the drive equipment, but also facilitates later maintenance and reduces later use costs.

[0019] (5) The detachable metal hammer is controlled by swinging, which reduces the limitation on the impact surface of the detachable metal hammer, allows for a wider range of impact surfaces, more diverse measurement methods, and richer experimental data. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram of the structure of the present invention.

[0022] Figure 2 This is a partial schematic diagram of the present invention.

[0023] Figure 3 This is a schematic diagram of the counterweight block in this invention. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0025] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] Figure 1 , Figure 2 and Figure 3 The drop hammer test machine shown includes a main base 1, a flip-type control lever 2 mounted on the upper end of the main base 1, a counterweight 3, an electric lift 4, and an electric drive wheel 5. The upper end of the flip-type control lever 2 is fixedly equipped with a top sliding guide rail 6. The top sliding guide rail 6 is slidably equipped with a sliding adjustment seat 7 for mounting the counterweight 3 and the electric lift 4. The lower end of the flip-type control lever 2 is fixedly equipped with a detachable metal hammer body 8. The outer side of the main base 1 is fixedly equipped with a lateral counterweight mechanism for stacking the counterweight 3 through a lateral electromagnetic bracket 9. The electric drive wheel 5 is installed inside the flip-type control lever 2 through a lateral shock absorber 10. The electric drive wheel 5 is connected to the sliding adjustment seat 7 through an internal conveyor belt mechanism located inside the flip-type control lever 2.

[0027] The electric lifting platform 4, the electric drive wheel 5, and the lateral electromagnetic support 9 are existing technologies. The lateral electromagnetic support 9 is a fixed support with an electromagnet installed at the top. The drive motor 5 drives the sliding adjustment seat 7 to slide and adjust on the upper surface of the top sliding guide rail 6 through the internal conveyor belt mechanism, thereby changing the angle of the flip control lever 2. When the left side of the flip control lever 2 is down and the right side is up, the iron suction cup at the bottom left side of the flip control lever 2 is magnetically attracted to the lateral electromagnetic support 9. At this time, the drive motor 5 drives the sliding adjustment seat 7 to move from left to right. The speed and impact force of the flip hammer can be changed by the translation distance.

[0028] When it is necessary to add or remove counterweight 3, simply move the sliding adjustment seat 7 to the left side of the flip control lever 2. The flip control lever 2 will then flip to the left due to the change in gravity. Then, move the sliding adjustment seat 7 to the far left. Adding counterweight 3 simply requires controlling the electric lift 4 to extend, while removing counterweight 3 requires controlling the electric lift to retract.

[0029] The lateral counterweight mechanism is slidably assembled with the lateral electromagnetic support 9 on the inclined surface via a lateral guide seat. Then, the adjustment motor on the left side wall of the lateral electromagnetic support 9, in conjunction with the lead screw, drives the entire lateral counterweight mechanism to rise and fall, thereby assembling the counterweight block onto the sliding adjustment seat 7. The adjustment motor is also existing technology.

[0030] To facilitate sliding assembly and internal installation, the sliding adjustment seat 7 is movably equipped with a lateral transmission wheel 11 at the bottom of the mounting surface of the top sliding guide rail 6. The top surface of the sliding adjustment seat 7 is provided with a top telescopic blind hole 12 for installing the electric lift 4. The upper opening of the top telescopic blind hole 12 is slidably equipped with an internal limit support rod 13 controlled by the electric lift 4.

[0031] To facilitate installation and positioning, a circular mounting through hole 14 is provided at the center of the counterweight block 3 to cooperate with the internal positioning support rod 13. The lower end of the circular mounting through hole 14 is provided with an flared hole that gradually increases in size from top to bottom.

[0032] To facilitate the storage of the remaining counterweights 3, the lateral counterweight mechanism includes an outer frame 15 fixed to the lateral electromagnetic support 9, a lateral guardrail 16 fixed to the outer side of the outer frame 15, and eight inclined support plates 17 fixed inside the outer frame 15.

[0033] In order to ensure that the internal limiting support rod 13 is not affected during loading and unloading, the inclined support plate 17 has an internal loading and unloading port that cooperates with the internal limiting support rod 13.

[0034] To facilitate guidance during loading and unloading, the lower surface of the counterweight 3 has downward-protruding bottom guide strips 18 on both sides of the circular assembly through hole 14.

[0035] To facilitate internal transmission, the upper ends of the flip-type control lever 2 are provided with lateral transmission grooves 19 for installing the internal conveyor belt mechanism. The internal conveyor belt mechanism includes a main drive wheel 20 movably sleeved on the outside of the electric drive wheel 5, a secondary driven wheel 21 movably assembled inside the lateral transmission groove 19, and a flexible transmission belt 22 sleeved on the outside of the main drive wheel 20 and the secondary driven wheel 21. The flexible transmission belt 22 is fixed on both sides of the sliding adjustment seat 7.

[0036] To facilitate lateral assembly, lateral transition grooves 23 are provided on the inner walls of both sides of the lateral transmission groove 19 for internal installation of elastic lateral damping seats 10.

[0037] In order to improve safety during impact and reduce the lateral impact force on the internal limiting support rod 13, an external protective net frame 24 is fixed on the upper surface of the sliding adjustment seat 7 around the counterweight block, and the lateral guardrail 16 is set opposite to the lateral opening of the external protective net frame 24.

[0038] In order to automatically monitor the number of counterweights 3 during loading and unloading, an infrared positioning module 25 is fixed on the inner side of the internal loading and unloading port.

[0039] The infrared positioning module 25 is existing technology. It detects the lifting height of the internal limiting support rod 13 by emitting infrared signals laterally, and uses the lifting height of the internal limiting support rod 13 to determine the number of counterweights 3 on the outside of the internal limiting support rod 13.

[0040] This invention discloses a drop hammer testing machine that uses a lever principle to adjust the center of gravity of a flip-type control rod 2, thereby controlling the descent of a detachable metal hammer 8. This design has low requirements for overall equipment height and lower power consumption than vertical equipment. An internal limiting support rod 13, controlled by an electric lift 4, extends and retracts within a circular mounting through-hole 14 at the center of the counterweight 3, automatically adjusting the quantity of counterweights 3. The operation is simple and convenient. A lateral electromagnetic bracket 9 assembles and fixes the lateral counterweight mechanism, not only securing the loading and unloading equipment but also magnetically limiting one end of the flip-type control rod 2, improving stability. An electric drive wheel 5 is installed inside the flip-type control rod 2 via a lateral shock absorber 10 and is connected to a sliding adjustment seat 7 via an internal conveyor belt mechanism. This reduces the impact on the drive equipment, facilitates maintenance, and lowers operating costs. The oscillating control method for the detachable metal hammer 8 provides less restriction on the impact surface, allowing for a wider impact range, more diverse measurement methods, and richer experimental data.

[0041] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A drop hammer test machine, comprising a main base (1), a flip-type control lever (2) mounted on the upper end of the main base (1), a counterweight (3), an electric lift (4), and an electric drive wheel (5), characterized in that: The upper end of the flip-type control lever (2) is fixedly equipped with a top sliding guide rail (6). The top sliding guide rail (6) is slidably equipped with a sliding adjustment seat (7) for installing the counterweight (3) and the electric lift (4). The top end of the flip-type control lever (2) is fixedly equipped with a detachable metal hammer (8). The outer side of the main base (1) is fixedly equipped with a lateral counterweight mechanism for stacking the counterweight (3) through a lateral electromagnetic bracket (9). The electric drive wheel (5) is installed inside the flip-type control lever (2) through a lateral shock absorber seat (10). The electric drive wheel (5) is connected to the sliding adjustment seat (7) through an internal conveyor belt mechanism located inside the flip-type control lever (2).

2. The drop weight testing machine according to claim 1, characterized in that: The sliding adjustment seat (7) is located at the bottom of the mounting surface of the top sliding guide rail (6) and is movably equipped with a lateral transmission wheel (11). The top surface of the sliding adjustment seat (7) is provided with a top telescopic blind hole (12) for installing the electric lift (4). The upper opening of the top telescopic blind hole (12) is slidably equipped with an internal limiting support rod (13) controlled by the electric lift (4).

3. The drop weight testing machine according to claim 2, characterized in that: The counterweight (3) has a circular assembly through hole (14) at its center that matches the internal limiting support rod (13). The lower end of the circular assembly through hole (14) has an flared hole that gradually increases in size from top to bottom.

4. The drop hammer testing machine according to claim 2, characterized in that: The lateral counterweight mechanism includes an outer frame (15) fixed on a lateral electromagnetic support (9), a lateral guardrail (16) fixed on the outer side of the outer frame (15), and multiple inclined support plates (17) fixed inside the outer frame (15).

5. The drop weight testing machine according to claim 4, characterized in that: The inclined support plate (17) has an internal loading and unloading port that cooperates with the internal limiting support rod (13).

6. The drop weight testing machine according to claim 5, characterized in that: The lower surface of the counterweight (3) has downward-protruding bottom guide strips (18) on both sides of the circular assembly through hole (14).

7. A drop weight testing machine according to claim 2, characterized in that: The flip-type control lever (2) has lateral transmission grooves (19) on both sides of its upper end for installing the internal conveyor belt mechanism. The internal conveyor belt mechanism includes a main drive wheel (20) movably sleeved on the outside of the electric drive wheel (5), a secondary driven wheel (21) movably assembled inside the lateral transmission groove (19), and a flexible transmission belt (22) sleeved on the outside of the main drive wheel (20) and the secondary driven wheel (21). The flexible transmission belt (22) is fixed on both sides of the sliding adjustment seat (7).

8. A drop weight testing machine according to claim 7, characterized in that: The lateral transmission groove (19) has lateral transition grooves (23) on the inner walls of both sides for internal installation of elastic lateral damping seats (10).

9. A drop weight testing machine according to claim 4, characterized in that: The upper surface of the sliding adjustment seat (7) is fixed with an external protective net frame (24) around the counterweight block (3), and the lateral guardrail (16) is arranged opposite to the lateral opening of the external protective net frame (24).

10. A drop weight testing machine according to claim 5, characterized in that: An infrared positioning module (25) is fixed on the inner side of the internal loading and unloading port.

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