Buffer mechanism of secondary impact test device

Abstract

According to the technical scheme, the buffering mechanism of the secondary impact test device comprises a workbench, a sliding rod is arranged in the workbench, a connecting disc is arranged on the sliding rod in a sliding mode, and one end of the sliding rod and one end of the connecting disc are provided with pressure springs wound on the sliding rod. A placing plate located at the top of the workbench and slidably connected with the workbench is fixed to the top of the connecting disc, a rotating rod penetrating through the workbench is rotationally arranged on one side of the connecting disc, and a supporting rod located between the end, away from the pressure spring, of the connecting disc and the end, away from the pressure spring, of the sliding rod is fixed to the end of the rotating rod; and an impact ball for impact is arranged between the two vertical plates in a sliding manner. Force generated during impact of the impact ball drives the placing plate to press downwards so as to drive the connecting disc to press downwards, at the moment, the supporting rod is separated from the limit and rotates to a horizontal state, and then the placing plate is driven to rebound through resilience force of the pressure spring so as to complete buffering.

Description

TECHNICAL FIELD

[0001] The utility model relates to impact test device technical field, concretely is a kind of buffer mechanism of secondary impact test device. BACKGROUND

[0002] Impact testing machine refers to the material testing machine for applying impact test force to sample and conducting impact test. Impact testing machine is divided into hand-operated pendulum impact testing machine, semi-automatic impact testing machine, digital impact testing machine, microcomputer-controlled impact testing machine, falling weight impact testing machine and non-metallic impact testing machine. By replacing pendulum and sample base, the test of simply supported beam and cantilever beam can be realized. The falling weight impact testing machine is another kind of impact testing machine, which is suitable for falling weight impact test of ferrite steel.

[0003] However, the existing impact testing machine does not have a buffer mechanism, and when the impact structure impacts the test product, a large rebound force is generated. When the impact structure is used for a long time, fatigue state occurs, which easily reduces the service life of the impact testing machine. UTILITY MODEL CONTENT

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a buffer mechanism of secondary impact test device.

[0005] In order to achieve the above-mentioned purpose, the utility model is technical scheme as follows:

[0006] A buffer mechanism of secondary impact test device, comprising a workbench, a sliding rod is arranged in the workbench, a connecting disc is slidably arranged on the sliding rod, and a compression spring is wound on the sliding rod at one end of the sliding rod and one end of the connecting disc, a placement plate is fixed on the top of the connecting disc and is slidably connected with the workbench, a rotating rod is rotatably arranged on one side of the connecting disc and penetrates the workbench, and a support rod is fixed at the end of the rotating rod and is located between the end of the connecting disc away from the compression spring and the end of the sliding rod away from the compression spring, vertical plates are arranged on both sides of the top of the workbench, and an impact ball for impact is slidably arranged between the two vertical plates.

[0007] Preferably, in normal state, the end of the connecting disc away from the compression spring is attached to the end of the sliding rod away from the compression spring.

[0008] Preferably, when the support rod abuts against the end of the sliding rod away from the compression spring, the support rod is in an inclined state.

[0009] Preferably, when the support rod abuts against the end of the sliding rod away from the compression spring, the linear distance between the support rod and the connecting disc is not greater than 3 cm.

[0010] Preferably, the included angle between the inclined support rod and the vertical direction is 1-3°, and the support rod and the slide rod are in surface contact when the support rod is in contact with the end of the slide rod away from the pressure spring.

[0011] Preferably, the rotatable angle of the support rod rotating from the horizontal direction is less than 90°.

[0012] Preferably, the indicating rod is fixed on one side of the workbench outside the rotating rod, and the angle of the indicating rod is the same as the angle of the support rod based on the rotating rod.

[0013] Preferably, the side of the facing surface of the two vertical plates is provided with a sliding groove in sliding connection with the impact ball and a placing groove for placing the impact ball.

[0014] Compared with the prior art, the device has the advantages that:

[0015] 1. The force generated when the impact ball impacts drives the placing plate to press down, thereby driving the connecting disc to press down, at this time, the support rod is disengaged from the limit and rotates to the horizontal state, and then the rebounding force of the pressure spring drives the placing plate to rebound, thereby completing the buffering and improving the service life of the device.

[0016] 2. The inclined support rod is used for supporting, which is beneficial to quickly rotating to the horizontal state when the support rod is disengaged from the limit, and the stability of the inclined support rod is increased through the surface contact, thereby ensuring the stable buffering work. BRIEF DESCRIPTION OF DRAWINGS

[0017] The disclosure of the present application will be described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes, and are not intended to limit the scope of protection of the present application. In the drawings, the same reference numerals are used to refer to the same parts. Among them:

[0018] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0019] Figure 2 It is a schematic diagram of the structure of the placing plate of the present application Figure 1 ;

[0020] Figure 3 It is a schematic diagram of the structure of the placing plate of the present application Figure 2 ;

[0021] Figure 4 It is a schematic diagram of the structure of the workbench of the present application.

[0022] In the drawings, the annotations are as follows: 1, workbench; 2, placing plate; 3, slide rod; 4, pressure spring;

[0023] 5, connecting disc; 6, support rod; 7, rotating rod; 8, vertical plate; 9, impact ball. DETAILED DESCRIPTION

[0024] It is easy to understand that according to the technical scheme of the utility model, a person skilled in the art can propose a plurality of structure modes and implementation modes which can be replaced with each other without changing the essential spirit of the utility model. Therefore, the following specific embodiments and drawings are only exemplary description of the technical scheme of the utility model, and should not be regarded as the whole or regarded as the limitation or restriction of the technical scheme of the utility model.

[0025] As shown in Figure 1 , the buffer mechanism of the secondary impact test device of the utility model comprises a workbench 1, both sides of the top of the workbench 1 are provided with vertical plates 8, as shown in Figure 4 , the side of the facing surface of the two vertical plates 8 is provided with a sliding groove, the upper side of the sliding groove is provided with a placing groove in communication, the two vertical plates 8 are provided with impact balls 9 which are slidingly connected with the sliding groove, the impact balls 9 are used for falling along the sliding groove to impact test the object, and the impact balls 9 are placed through the placing groove to avoid affecting the installation of the object on the placing plate 2.

[0026] As shown in Figure 2 , the workbench 1 is provided with a sliding rod 3, the sliding rod 3 is slidingly provided with a connecting disc 5, one end of the sliding rod 3 and one end of the connecting disc 5 are provided with a compression spring 4 which is wound on the sliding rod 3, the top of the connecting disc 5 is fixed with a placing plate 2 which is located at the top of the workbench 1 and is slidingly connected with the workbench 1, one side of the connecting disc 5 is rotatably provided with a rotating rod 7 which penetrates the workbench 1, and the end of the rotating rod 7 is fixed with a supporting rod 6 which is located between the end of the connecting disc 5 which is away from the compression spring 4 and the end of the sliding rod 3 which is away from the compression spring 4, the object is installed on the placing plate 2 through a bandage or other fixing structure, the object is impacted by the falling of the impact ball 9, the force generated by the impact drives the placing plate 2 to press down, thereby driving the connecting disc 5 to press down, so that the supporting rod 6 is out of limit, and the supporting rod 6 is rotated to be horizontal after being out of limit, thereby driving the connecting disc 5 and the placing plate 2 to rise through the rebound force of the compression spring 4, and the buffering work is completed, thereby improving the service life of the device.

[0027] As shown in Figure 3 , under normal circumstances, the end of the connecting disc 5 which is away from the compression spring 4 is attached to the end of the sliding rod 3 which is away from the compression spring 4, so as to ensure that the compression spring 4 has sufficient rebound force, thereby ensuring the stability of the buffering work, when the supporting rod 6 contacts the end of the sliding rod 3 which is away from the compression spring 4, the supporting rod 6 is in an inclined state, and the included angle between the inclined state and the vertical direction is set to 2°, the inclined state of the supporting rod 6 is conducive to the rapid rotation of the supporting rod 6 to the horizontal state when the supporting rod 6 is out of limit, thereby being conducive to the development of the buffering work, and the supporting rod 6 and the end of the sliding rod 3 which is away from the compression spring 4 are in surface contact when they contact, so as to ensure the stability of the supporting work of the supporting rod 6.

[0028] As Figure 2 shown, the support rod 6 is rotated by less than 90° in the horizontal direction, so that the tilting direction of the support rod 6 is tilted towards the direction of the slot on the connecting disc 5 for the insertion of the support rod 6, thereby facilitating the quick rotation of the placing plate 2 into the slot, the slot is rotationally connected with the rotating rod 7, and the slot is not in contact with the support rod 6, the indicating rod is fixed on the side of the rotating rod 7 outside the workbench 1, and the angle of the indicating rod based on the rotating rod 7 is the same as the angle of the support rod 6 based on the rotating rod 7, so that the tilting angle of the support rod 6 at this time can be easily known through the indicating rod, when the support rod 6 abuts against the end of the sliding rod 3 away from the pressure spring 4, the linear distance of the support rod 6 protruding from the connecting disc 5 is not greater than 3cm, so as to avoid the excessive distance of the placing plate 2 and the connecting disc 5 rebounded by the pressure spring 4, thereby causing the instability of the position of the object on the placing plate 2.

[0029] The technical scope of the utility model is not only limited to the contents in the above description, and the person skilled in the art can make various deformations and modifications to the above embodiment without departing from the technical thought of the utility model, and these deformations and modifications should all belong to the protection scope of the utility model.

Claims

1. A cushioning mechanism for a secondary impact test device, characterized by: The utility model provides a workbench, which comprises a workbench (1), a sliding rod (3) arranged in the workbench (1), a connecting disc (5) slidably arranged on the sliding rod (3), a compression spring (4) arranged at one end of the sliding rod (3) and the connecting disc (5) and wound on the sliding rod (3), a placement plate (2) fixed on the top of the connecting disc (5) and slidably connected with the workbench (1), a rotating rod (7) rotatably arranged on one side of the connecting disc (5) and penetrating through the workbench (1), a support rod (6) fixed at the end of the rotating rod (7) and located between the end of the connecting disc (5) away from the compression spring (4) and the end of the sliding rod (3) away from the compression spring (4), and an impact ball (9) slidably arranged between the two vertical plates (8) on the top of the workbench (1).

2. The shock absorber according to claim 1, wherein: In normal state, the end of the connecting disc (5) away from the compression spring (4) is attached to the end of the sliding rod (3) away from the compression spring (4).

3. A cushioning mechanism for a secondary impact test device according to claim 2, wherein: When the support rod (6) contacts the end of the sliding rod (3) away from the compression spring (4), the support rod (6) is in an inclined state.

4. The shock absorber according to claim 3, wherein: When the support rod (6) contacts the end of the sliding rod (3) away from the compression spring (4), the protruding distance of the support rod (6) from the connecting disc (5) is not greater than 3 cm.

5. A cushioning mechanism for a secondary impact test device according to claim 4, wherein: The angle between the support rod (6) in the inclined state and the vertical direction is 1-3°, and the support rod (6) contacts the end of the sliding rod (3) away from the compression spring (4) in a surface contact mode.

6. A cushioning mechanism for a secondary impact test device according to claim 5, wherein: The rotatable angle of the support rod (6) rotating from the horizontal direction is less than 90°.

7. The shock test apparatus of claim 1 wherein: The indicating rod is fixed on one side of the rotating rod (7) outside the workbench (1), and the angle of the indicating rod based on the angle of the rotating rod (7) is the same as the angle of the support rod (6) based on the angle of the rotating rod (7).

8. The shock test apparatus of claim 1, wherein: The opposite sides of the two vertical plates (8) are provided with a sliding groove slidably connected with the impact ball (9) and a placement groove for placing the impact ball (9).

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