Pendulum impact testing machine

Abstract

A pendulum impact testing machine relates to the technical field of metal material impact test detection and comprises a base, a pendulum shaft frame is arranged on the base, a transmission shaft is arranged at the upper end of the pendulum shaft frame, a sample support is arranged at the lower end of the pendulum shaft frame, a pendulum shaft is arranged on the transmission shaft, a pendulum is connected to the pendulum shaft, one end of the transmission shaft is connected with a motor and a clutch, and the other end of the transmission shaft is connected with a motor. According to the utility model, through the arrangement of the brake device, braking at any time can be realized, and the pendulum shaft can be tightly held at any angle when the pendulum shaft is suddenly stopped, so that the safety of test equipment is improved, and the test efficiency is improved; meanwhile, the motor is matched with the brake device, and the purpose of multi-angle impact test can be achieved through software control.

Description

Technical Field

[0001] The utility model relates to the technical field of metal material impact test detection, in particular to a pendulum impact testing machine. Background Art

[0002] The pendulum impact tester is a type of impact tester. It is currently mainly used to measure the performance of some metal materials under dynamic load and impact resistance, so as to determine the quality of the material under dynamic load. In existing pendulum impact testers, the pendulum will swing repeatedly after the impact, and the pendulum swing time is relatively long. It takes a long time to stop the pendulum. During the pendulum swing, the tester cannot collect the broken samples or replace the samples to be tested, which greatly reduces the efficiency of sample testing. Moreover, when the pendulum suddenly loses power during high-speed impact, the existing clutch and reducer cannot meet the emergency braking requirements. Utility Model Content

[0003] In view of the above deficiencies in the prior art, the purpose of the present invention is to provide a pendulum impact testing machine that can solve the above technical problems.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A pendulum impact testing machine comprises a base, a pendulum shaft frame is arranged on the base, a transmission shaft is arranged at the upper end of the pendulum shaft frame, a sample support is arranged at the lower end of the pendulum shaft frame, a pendulum is connected to the pendulum shaft, a motor and a clutch are connected to one end of the transmission shaft, and a brake device is connected to the pendulum shaft frame at the other end, and the brake device is fixedly connected to the pendulum shaft frame through a support frame;

[0006] The brake device comprises an air source gourd, a compression spring and a suction cup are arranged in the air source gourd, one end of the compression spring is connected to the inner wall of the air source gourd, and the other end is connected to the suction cup, an end of the suction cup away from the compression spring is connected to an ejector pin, the ejector pin penetrates the air source gourd and abuts against the blocking pin, and the ejector pin is slidably connected to the air source gourd, a left bracket is fixedly connected to the blocking pin, a right bracket is fixedly connected to the air source gourd, brake pads are arranged at the front ends of the left bracket and the right bracket, a brake disc is arranged between the two brake pads, the brake disc is fixedly connected to the flange, and the flange is connected to the transmission shaft through a double key;

[0007] The left bracket and the right bracket are connected by a connecting plate, and pins are respectively provided at both ends of the connecting plate. The two pins respectively penetrate the pin holes on the left bracket and the right bracket and are connected to the mounting seat, and the mounting seat is installed on the support frame.

[0008] Preferably, the gas source gourd is provided with a gas source interface, and the gas source interface is connected to an external gas source.

[0009] Preferably, the rear ends of the left bracket and the right bracket are both provided with tension spring bolts, and a tension spring is provided between the two tension spring bolts.

[0010] Preferably, the brake pads are fixedly connected to the front ends of the left bracket and the right bracket by bolts.

[0011] Preferably, the brake disc is fixedly connected to the flange by bolts.

[0012] Preferably, the swing shaft and the transmission shaft are connected by a double-key connection.

[0013] Preferably, an indicating device is provided on one side of the swing shaft frame, and the indicating device comprises a pointer plate and a pointer, the pointer is fixedly connected to the transmission shaft, the pointer plate is fixedly connected to the swing shaft frame, and the pointer plate is provided with scales.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: when the pendulum of the utility model is subjected to an impact test on a sample, air needs to be supplied to the air source gourd. After the air enters the air source gourd, the compression spring is compressed, driving the suction cup and the ejection pin to move to the right. Under the action of the tension spring, the blocking pin also moves to the right to achieve the left bracket and the rear end of the right bracket being tightly clamped. Under the action of the connecting plate and the pin shaft, the brake pads at the front end of the left bracket and the right bracket are opened, and the pendulum swings under the drive of the transmission shaft. When a sudden power failure occurs, the clutch cannot achieve a shutdown action. At this time, the gas in the air source gourd is released, the compression spring is reset, and the suction cup and the ejection pin are pushed to move to the left. The ejection pin pushes the blocking pin and also moves to the left. The tension spring is stretched at this time. Under the action of the connecting plate and the pin shaft, the brake pads at the front end of the left bracket and the right bracket clamp the brake disc to achieve emergency braking, thereby achieving a shutdown. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the brake device structure of the utility model.

[0018] Description of reference numerals:

[0019] 1-base, 2-swing shaft frame, 3-transmission shaft, 4-sample support, 5-swing shaft, 6-pendulum, 7-support frame, 8-air source hoist, 9-ejection pin, 10-blocking pin, 11-left bracket, 12-right bracket, 13-brake pad, 14-brake disc, 15-flange, 16-connecting plate, 17-pin shaft, 18-mounting seat, 19-air source interface, 20-tension spring, 21-pointer plate, 22-pointer. DETAILED DESCRIPTION

[0020] The following is a detailed description of the invention of the utility model by way of examples in conjunction with the accompanying drawings of the specification. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments.

[0021] like Figure 1 to Figure 2 As shown, the utility model provides a pendulum impact tester, comprising a base 1, a pendulum shaft frame 2 is provided on the base 1, a transmission shaft 3 is provided at the upper end of the pendulum shaft frame 2, a sample support 4 is provided at the lower end, a pendulum shaft 5 is provided on the transmission shaft 3, a pendulum 6 is connected to the pendulum shaft 5, one end of the transmission shaft 3 is connected to a motor and a clutch, and the other end is connected to a brake device, and the brake device is fixedly connected to the pendulum shaft frame 2 through a support frame 7;

[0022] The brake device includes an air source hoist 8, in which a compression spring and a suction cup are arranged, one end of the compression spring is connected to the inner wall of the air source hoist 8, and the other end is connected to the suction cup, and the end of the suction cup away from the compression spring is connected to an ejector pin 9, the ejector pin 9 penetrates the air source hoist 8 and abuts against a blocking pin 10, and the ejector pin 9 is slidably connected to the air source hoist 8, a left bracket 11 is fixedly connected to the blocking pin 10, and a right bracket 12 is fixedly connected to the air source hoist 8, and brake pads 13 are arranged at the front ends of the left bracket 11 and the right bracket 12, a brake disc 14 is arranged between the two brake pads 13, and the brake disc 14 is fixedly connected to a flange 15, and the flange 15 is connected to the transmission shaft 3 through a double key;

[0023] The left bracket 11 and the right bracket 12 are connected by a connecting plate 16 , and pins 17 are respectively provided at both ends of the connecting plate 16 . The two pins 17 respectively penetrate the pin holes on the left bracket 11 and the right bracket 12 and are connected to the mounting seat 18 , and the mounting seat 18 is installed on the support frame 7 .

[0024] The utility model can realize braking at any time by arranging the brake device, and can hold the swing shaft 5 tightly at any angle when emergency stopping, thereby increasing the safety of the test equipment and improving the test efficiency; at the same time, the motor and the brake device cooperate, and the purpose of multi-angle impact test can be achieved through software control.

[0025] Furthermore, in this embodiment, the gas source gourd 8 is provided with a gas source interface 19, and the gas source interface 19 is connected to an external gas source.

[0026] Furthermore, in this embodiment, the rear ends of the left bracket 11 and the right bracket 12 are provided with tension spring bolts, and a tension spring 20 is provided between the two tension spring bolts. The tension spring 20 can drive the left bracket 11 to move right when the ejection pin 9 moves right, thereby realizing the opening of the brake pad 13.

[0027] Furthermore, in this embodiment, the brake pad 13 is fixedly connected to the front ends of the left bracket 11 and the right bracket 12 by bolts.

[0028] Furthermore, in this embodiment, the brake disc 14 is fixedly connected to the flange 15 by bolts.

[0029] Furthermore, in this embodiment, the swing shaft 5 and the transmission shaft 3 are connected by a double-key connection.

[0030] Furthermore, in this embodiment, an indicating device is provided on one side of the swing shaft frame 2, and the indicating device includes a pointer plate 21 and a pointer 22, the pointer 22 is fixedly connected to the transmission shaft 3, the pointer plate 21 is fixedly connected to the swing shaft frame 2, and the pointer plate 21 is provided with scales.

[0031] Working principle: The sample is installed on the sample support 4, and the transmission shaft 3 is driven by the motor and rotates in coordination with the clutch to achieve the purpose of taking, placing and impacting. When the pendulum 6 performs an impact test on the sample, it is necessary to supply air to the air source gourd 8. After the air enters the air source gourd 8, the compression spring is compressed, driving the suction cup and the ejector pin 9 to move to the right. Under the action of the tension spring 20, the blocking pin 10 also moves to the right to achieve the left bracket 11 and the rear end of the right bracket 12 are tightly embraced. Under the action of the connecting plate 16 and the pin 17, the brake pads 13 at the front ends of the left bracket 11 and the right bracket 12 are opened. At this time, the pendulum 6 swings driven by the transmission shaft 3; when a sudden power failure occurs, the clutch cannot achieve the shutdown action. At this time, the gas in the air source gourd 8 is released, the compression spring is reset, and the suction cup and the ejector pin 9 are pushed to move to the left. The ejector pin 9 resists the blocking pin 10 and also moves to the left. The tension spring 20 is stretched at this time. Under the action of the connecting plate 16 and the pin 17, the brake pads 13 at the front ends of the left bracket 11 and the right bracket 12 hold the brake disc 14 tightly to achieve emergency braking, thereby achieving shutdown.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the present invention according to the technical solution and application concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pendulum impact testing machine, comprising a base (1), characterized in that: The base (1) is provided with a swing shaft frame (2), the upper end of the swing shaft frame (2) is provided with a transmission shaft (3), the lower end is provided with a sample support (4), the transmission shaft (3) is provided with a swing shaft (5), the swing shaft (5) is connected to a pendulum (6), one end of the transmission shaft (3) is connected to a motor and a clutch, and the other end is connected to a brake device, and the brake device is fixedly connected to the swing shaft frame (2) via a support frame (7); The brake device comprises an air source gourd (8), wherein a compression spring and a suction cup are arranged inside the air source gourd (8), wherein one end of the compression spring is connected to the inner wall of the air source gourd (8), and the other end is connected to the suction cup, and the end of the suction cup away from the compression spring is connected to an ejector pin (9), wherein the ejector pin (9) passes through the air source gourd (8) and abuts against a blocking pin (10), and the ejector pin (9) is slidably connected to the air source gourd (8), wherein a left bracket (11) is fixedly connected to the blocking pin (10), and a right bracket (12) is fixedly connected to the air source gourd (8), and brake pads (13) are arranged at the front ends of the left bracket (11) and the right bracket (12), and a brake disc (14) is arranged between the two brake pads (13), and the brake disc (14) is fixedly connected to a flange (15), and the flange (15) is connected to the transmission shaft (3) through a double key; The left bracket (11) and the right bracket (12) are connected via a connecting plate (16), and pins (17) are respectively provided at both ends of the connecting plate (16). The two pins (17) respectively penetrate through pin holes on the left bracket (11) and the right bracket (12) to be connected to a mounting seat (18), and the mounting seat (18) is mounted on the support frame (7).

2. A pendulum impact testing machine as claimed in claim 1, characterized in that: The gas source gourd (8) is provided with a gas source interface (19), and the gas source interface (19) is connected to an external gas source.

3. A pendulum impact testing machine as claimed in claim 1, characterized in that: The rear ends of the left bracket (11) and the right bracket (12) are both provided with tension spring bolts, and a tension spring (20) is provided between the two tension spring bolts.

4. A pendulum impact testing machine as claimed in claim 1, characterized in that: The brake pad (13) is fixedly connected to the front ends of the left bracket (11) and the right bracket (12) by means of bolts.

5. A pendulum impact testing machine as claimed in claim 1, characterized in that: The brake disc (14) is fixedly connected to the flange (15) by means of bolts.

6. A pendulum impact testing machine as claimed in claim 1, characterized in that: The swing shaft (5) and the transmission shaft (3) are connected by a double-key connection.

7. A pendulum impact testing machine as claimed in claim 1, characterized in that: An indicating device is provided on one side of the swing shaft frame (2), the indicating device comprising a pointer disk (21) and a pointer (22), the pointer (22) being fixedly connected to the transmission shaft (3), the pointer disk (21) being fixedly connected to the swing shaft frame (2), and the pointer disk (21) being provided with a scale.

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