Drop hammer type impact test device

Abstract

The utility model discloses a drop hammer type impact test device, which comprises a bottom plate, an impact test device and a control device, and is characterized in that the bottom plate is horizontally arranged; the connecting seat is fixedly mounted on the bottom plate; one end of the impact hammer supporting rod is rotationally connected to the connecting seat through a pin shaft; the impact hammer is connected to the other end of the impact hammer supporting rod; the limiting baffle is fixedly connected to the bottom plate; the limiting baffle is vertically arranged, located on the back side of a hammer head of the impact hammer and used for limiting the initial position of the impact hammer. The magnetic coupling comprises a first magnetic rotating shaft and a second magnetic rotating shaft which are arranged at an interval; wherein the first magnetic rotating shaft is coaxially and fixedly connected with a pin shaft of the impact hammer supporting rod; a power output shaft of the motor is coaxially and fixedly connected with the second magnetic rotating shaft; the translation mechanism is fixedly mounted on the bottom plate; wherein the motor is fixedly mounted at the moving end of the translation mechanism, and the translation mechanism can drive the motor to move horizontally to drive the second magnetic rotating shaft to be close to or away from the first magnetic rotating shaft.

Description

Technical Field

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

[0002] Impact strength or impact toughness is one of the important mechanical properties of materials, which is used to measure the impact resistance and toughness of materials. Currently, the commonly used methods for testing the impact strength of materials are pendulum impact test and drop hammer impact test. Drop hammer impact test is a method in which a drop hammer is dropped freely from a certain height to impact the sample, and the various mechanical parameters of the sample are tested to obtain the sample's ability to withstand impact loads. The device used is a drop hammer impact tester.

[0003] At present, the existing drop hammer generally realizes the position limitation or release of the impact hammer by plugging and pulling out the release rod, which requires manual operation and is inefficient. In addition, there are some automatic drop hammer test devices, but these automatic drop hammer test devices are generally large equipment, occupy a large space, and are not easy to move. Utility Model Content

[0004] The utility model aims to provide a drop hammer impact test device, which can improve the efficiency of the drop hammer test and has a simple structure and is easy to carry.

[0005] The technical solution provided by the utility model is:

[0006] A drop hammer impact test device, comprising:

[0007] a base plate, which is arranged horizontally;

[0008] A connecting seat, which is fixedly mounted on the bottom plate;

[0009] An impact hammer support rod, one end of which is rotatably connected to the connecting seat via a pin;

[0010] An impact hammer connected to the other end of the impact hammer support rod;

[0011] A limit baffle, which is fixedly connected to the bottom plate; the limit baffle is vertically arranged and located on the back side of the hammer head of the impact hammer, and is used to limit the initial position of the impact hammer;

[0012] The magnetic coupling comprises a first magnetic shaft and a second magnetic shaft coaxially spaced apart from each other;

[0013] Wherein, the first magnetic rotating shaft is coaxially fixedly connected with the pin shaft of the impact hammer support rod;

[0014] A motor, whose power output shaft is coaxially fixedly connected with the second magnetic rotating shaft;

[0015] A translation mechanism, which is fixedly mounted on the bottom plate;

[0016] The motor is fixedly mounted on the moving end of the translation mechanism, and the translation mechanism can drive the motor to move horizontally, thereby driving the second magnetic rotation axis to move closer to or away from the first magnetic rotation axis.

[0017] Preferably, the translation mechanism adopts a pneumatic linear slide or an electric linear slide, and the translation mechanism is arranged along the axial direction of the power output shaft of the motor.

[0018] Preferably, the drop hammer impact test device further comprises:

[0019] Two support and protection beams are symmetrically arranged on both sides of the impact hammer support rod; one end of the support and protection beam is fixedly connected to the limit baffle, and the other end is fixedly connected to the bottom plate;

[0020] Wherein, there is a gap between the supporting protection beam and the impact hammer supporting rod.

[0021] Preferably, the supporting protection beam is a curved beam.

[0022] Preferably, a limiting block is arranged on the limiting baffle; the limiting block faces the impact hammer support rod and is arranged close to the top of the limiting baffle.

[0023] Preferably, the drop hammer impact test device further comprises:

[0024] A buffer block is fixedly arranged on the bottom plate and located between the two supporting protection beams.

[0025] Preferably, the connecting seat is a U-shaped seat, the bottom of which is fixedly connected to the base plate by bolts, through holes are respectively provided on the two vertical plates of the U-shaped seat, and pins are respectively provided on both sides of the impact hammer support rod; the pins are rotatably supported in the through holes in a one-to-one manner.

[0026] Preferably, a bearing is provided in the through hole, and the pin shaft cooperates with the through hole through the bearing.

[0027] The beneficial effects of the utility model are:

[0028] The drop hammer impact test device provided by the utility model does not require manual operation, can improve the efficiency of the drop hammer test, and has a simple structure and is easy to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 The utility model is a schematic diagram of the overall structure of the drop hammer impact test device.

[0030] Figure 2 It is a front view of the drop hammer impact test device described in the utility model.

[0031] Figure 3 It is a side schematic diagram of the drop hammer impact test device described in the utility model. DETAILED DESCRIPTION

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0033] like Figure 1-3 As shown, the utility model provides a drop hammer impact test device, which includes: a base plate 110, a connecting seat 120, an impact hammer support rod 130, an impact hammer 140, a limit baffle 150, a magnetic coupling 160, a motor 170 and a translation mechanism 180.

[0034] The bottom plate 110 is horizontally arranged, and the connecting seat 120 is fixedly mounted on the bottom plate 110. One end of the impact hammer support rod 130 is rotatably connected to the connecting seat 120 through a pin shaft 131, and the other end is connected to the impact hammer 140. The limit baffle 150 is fixedly connected to the bottom plate 110; the limit baffle 150 is vertically arranged and located on the back side of the hammer head of the impact hammer 140, and is used to limit the initial position of the impact hammer 140.

[0035] In this embodiment, the connecting seat 120 is a U-shaped seat, the bottom of which is fixedly connected to the base plate 110 by bolts or positioning pins, and through holes are respectively opened on the two vertical plates of the U-shaped seat 120, and pins 131 are respectively arranged on both sides of the impact hammer support rod 130 (lower end); the pins 131 are rotatably supported in the through holes one by one.

[0036] As a preferred embodiment, a bearing is provided in the through hole, and the pin 131 cooperates with the through hole through the bearing to ensure the stability of the operation of the test device.

[0037] The magnetic coupling 160 adopts an axial magnetic coupling, including a first magnetic shaft 161 and a second magnetic shaft 162 arranged at an interval; the first magnetic shaft 161 is coaxially fixedly connected to the pin shaft 131 of the impact hammer support rod 130, and the second magnetic shaft 162 is coaxially fixedly connected to the power output shaft of the motor 170.

[0038] The translation mechanism 180 is fixedly mounted on the bottom plate 110. The motor 170 is fixedly mounted on the moving end of the translation mechanism 180. The translation mechanism 180 can drive the motor 170 to move horizontally along the axial direction of the power output shaft of the motor 170, driving the second magnetic shaft 162 to approach or move away from the first magnetic shaft 161. When the first magnetic shaft 161 and the second magnetic shaft 162 are close to each other so that the distance between them meets the distance (air gap) requirement for transmitting torque, the first magnetic shaft 161 and the second magnetic shaft 162 are coupled, and when the motor 170 rotates, it can drive the first magnetic shaft 161 and the second magnetic shaft 162 to rotate synchronously, transmitting power to the pin shaft 131, thereby driving the impact hammer support rod 130 to rotate, so that the impact hammer returns to the initial position close to the limit baffle 150. When the distance between the first magnetic shaft 161 and the second magnetic shaft 162 increases to a point where the distance requirement for torque transmission cannot be met, the first magnetic shaft 161 and the second magnetic shaft 162 are decoupled, the impact hammer support rod 130 flips freely, and the impact hammer 140 falls, thereby realizing the impact test process.

[0039] The translation mechanism 180 adopts a pneumatic linear slide or an electric linear slide, and the translation mechanism 180 is arranged along the axial direction of the power output shaft of the motor 170 .

[0040] As a preferred embodiment, the drop hammer impact test device is further provided with two support protection beams 190, which are symmetrically arranged on both sides of the impact hammer support rod 130; one end of the support protection beam 190 is fixedly connected to the limit baffle 150, and the other end is fixedly connected to the bottom plate 110. There is a gap between the support protection beam 190 and the impact hammer support rod 130, and there is no contact between the two.

[0041] As a further preference, the supporting protection beam 190 is a curved beam, which has better stability.

[0042] A limiting block 151 is disposed on the limiting baffle 150; the limiting block 151 faces the impact hammer support rod 130 and is disposed near the top of the limiting baffle 150. When the impact hammer 140 returns to the initial position, the impact hammer support rod 130 abuts against the limiting block 151. As a preferred embodiment, the limiting block 151 is made of rubber or polyurethane to avoid a hard collision with the impact hammer support rod 130.

[0043] A buffer block 111 is fixedly arranged on the bottom plate 110, and the buffer block 111 is located between the two supporting protection beams 190. The buffer block 111 can prevent the impact hammer 140 from hard collision with the bottom plate 110 when it drops to the lowest point; the limit block 111 is made of rubber or polyurethane.

[0044] The working process of the drop hammer impact test device provided by the utility model is as follows: when the moving end of the translation mechanism 180 drives the second magnetic rotating shaft 162 to move toward the first magnetic rotating shaft 161 to the front dead point, the second magnetic rotating shaft 162 is coupled with the first magnetic rotating shaft 161 for transmission, and the rotation of the motor 170 can drive the impact hammer support rod 130 to flip to the initial position; when the moving end of the translation mechanism 180 drives the second magnetic rotating shaft 162 to move away from the first magnetic rotating shaft 161 to the rear dead point, the second magnetic rotating shaft 162 is decoupled from the first magnetic rotating shaft 161, and the impact hammer 140 falls freely to realize the impact process.

[0045] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A drop hammer impact test device, characterized in that: include: a base plate, which is arranged horizontally; A connecting seat, which is fixedly mounted on the bottom plate; An impact hammer support rod, one end of which is rotatably connected to the connecting seat via a pin; An impact hammer connected to the other end of the impact hammer support rod; A limit baffle, which is fixedly connected to the bottom plate; the limit baffle is vertically arranged and located on the back side of the hammer head of the impact hammer, and is used to limit the initial position of the impact hammer; The magnetic coupling comprises a first magnetic shaft and a second magnetic shaft coaxially spaced apart from each other; Wherein, the first magnetic rotating shaft is coaxially fixedly connected with the pin shaft of the impact hammer support rod; A motor, whose power output shaft is coaxially fixedly connected with the second magnetic rotating shaft; A translation mechanism, which is fixedly mounted on the bottom plate; The motor is fixedly mounted on the moving end of the translation mechanism, and the translation mechanism can drive the motor to move horizontally, thereby driving the second magnetic rotation axis to move closer to or away from the first magnetic rotation axis.

2. The drop weight impact test device according to claim 1, characterized in that: The translation mechanism adopts a pneumatic linear slide or an electric linear slide, and the translation mechanism is arranged along the axial direction of the power output shaft of the motor.

3. The drop weight impact test device according to claim 2, characterized in that: Also includes: Two support and protection beams are symmetrically arranged on both sides of the impact hammer support rod; one end of the support and protection beam is fixedly connected to the limit baffle, and the other end is fixedly connected to the bottom plate; Wherein, there is a gap between the supporting protection beam and the impact hammer supporting rod.

4. The drop weight impact test device according to claim 3, characterized in that: The supporting protection beam is a curved beam.

5. The drop weight impact test device according to claim 4, characterized in that: A limiting block is arranged on the limiting baffle; the limiting block faces the impact hammer support rod and is arranged close to the top of the limiting baffle.

6. The drop weight impact test device according to any one of claims 3 to 5, characterized in that: Also includes: A buffer block is fixedly arranged on the bottom plate and located between the two supporting protection beams.

7. The drop weight impact test device according to claim 6, characterized in that: The connecting seat is a U-shaped seat, the bottom of which is fixedly connected to the base plate by bolts, through holes are respectively opened on the two vertical plates of the U-shaped seat, and pins are respectively arranged on both sides of the impact hammer support rod; the pins are rotatably supported in the through holes in a one-to-one manner.

8. The drop weight impact test device according to claim 7, characterized in that: A bearing is arranged in the through hole, and the pin shaft cooperates with the through hole through the bearing.

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