A dynamic impact force acquisition test device

Abstract

The present application discloses a dynamic impact force acquisition test device, including: a test platform is arranged horizontally and has through holes thereon; a cage is arranged below the through holes and can pass through the through holes. The side wall of the cage has openings that can penetrate horizontally, and the lower end of the cage has a hook for hanging heavy objects; a lifting mechanism can drive the cage to move up and down in the through holes; a support plate is installed on the test platform, and the support plate can penetrate through the openings of the cage; a dynamic impact force sensor is fixed on the support plate; a lateral driving mechanism can drive the support plate to move laterally. When the support plate moves laterally, the dynamic impact force sensor can be located below the cage. When the lifting mechanism drives the cage to descend, the cage can press on the dynamic impact force sensor; a controller is connected to the dynamic impact force sensor through a signal line. This dynamic impact force acquisition test device can easily obtain the dynamic impact force information of heavy objects, and the test results are relatively accurate.

Description

Technical Field

[0001] This application relates to the technical field of impact force testing equipment, and particularly to a dynamic impact force acquisition test device. Background Art

[0002] When a heavy object is applied to a device, a dynamic impact force will be generated. Usually, it is necessary to collect the dynamic impact force and conduct a test on the dynamic mechanical properties of this dynamic impact force. However, in the prior art, there is no dedicated device for collecting the dynamic impact force of a heavy object. It is difficult to collect the dynamic impact force of a heavy object, not easy to conduct tests, the collection equipment is not professional, the collection test results are affected by external forces, the test results are inaccurate, and there are large deviations; after the impact test, it is necessary to manually measure and record, resulting in time-consuming and laborious test work.

[0003] In summary, how to effectively solve the problems such as the difficulty in collecting the dynamic impact force of a heavy object and the inaccuracy of test results is an urgent problem that those skilled in the art need to solve currently.

[0004] Application Content

[0005] The purpose of this application is to provide a dynamic impact force acquisition test device, which can easily obtain the dynamic impact force information of a heavy object and the test results are relatively accurate.

[0006] To solve the above technical problems, this application provides the following technical solutions:

[0007] A dynamic impact force acquisition test device, comprising:

[0008] A test platform, which is arranged horizontally and has through holes thereon;

[0009] A cage, which is arranged below the through hole and can pass through the through hole. The side wall of the cage has openings that can penetrate horizontally, and the lower end of the cage has a hook for hanging a heavy object;

[0010] A lifting mechanism, which can drive the cage to move up and down in the through hole;

[0011] A support plate, which is installed on the test platform and can penetrate through the opening of the cage;

[0012] A dynamic impact force sensor, which is fixed on the support plate;

[0013] A lateral driving mechanism, which can drive the support plate to move laterally. When the support plate moves laterally, the dynamic impact force sensor can be located below the cage. When the lifting mechanism drives the cage to descend, the cage can press on the dynamic impact force sensor;

[0014] A controller is connected to the dynamic impact sensor through a signal line.

[0015] Preferably, it further includes a first guide rail and a second guide rail fixed on the test platform. The first guide rail and the second guide rail are aligned and are respectively arranged on both sides of the through hole. The pallet can be stuck in the first guide rail and the second guide rail.

[0016] Preferably, the shape of the cage is a trapezoidal column shape with a round top and a square bottom. The shape of the through hole is square. The lower part of the cage is in clearance fit with the through hole.

[0017] Preferably, the outer edges of the trapezoidal column of the cage and the corners of the through hole have rounded corners.

[0018] Optionally, the cage has two pairs of openings.

[0019] Preferably, the cage has upper and lower guide rails, and chucks that can slide up and down along them are installed on the upper and lower guide rails. The chucks can be aligned with the first guide rail and the second guide rail.

[0020] Preferably, a pressure column is fixed at the top end inside the cage, and the pressure column can press on the dynamic impact sensor.

[0021] Preferably, the lifting mechanism includes a lifting motor and a connecting rope with its upper end connected to the lifting motor and its lower end connected to the upper end of the cage.

[0022] Preferably, the lateral driving mechanism includes a driving motor with a threaded hole and a screw rod connected in the threaded hole of the driving motor. The front end of the screw rod is fixedly connected to the pallet.

[0023] Preferably, the hook is a lifting hook.

[0024] The dynamic impact acquisition test device provided by this application includes a test platform, a cage, a lifting mechanism, a pallet, a dynamic impact sensor, a lateral driving mechanism and a controller. The test platform is arranged horizontally. There is a through hole on the test platform. The cage is arranged below the through hole. Start the lifting mechanism to drive the cage to move upward along the through hole until the bottom of the cage passes through the through hole and rises to the locking position.

[0025] When the cage rises to the locking position, start the lateral driving mechanism. The lateral driving mechanism drives the pallet to move laterally towards one side of the cage. There are openings on the side wall of the cage. Drive the pallet to pass through the openings of the cage and make the dynamic impact sensor exactly located below the cage.

[0026] Drive the lifting mechanism in the reverse direction, and the cage moves downward to make the cage contact with the dynamic impact sensor. At this time, the cage presses the dynamic impact sensor, the dynamic impact sensor presses the pallet, and the pallet presses the test platform.

[0027] Suddenly apply a heavy object to the hook at the lower end of the cage, such as applying a 100 Kg heavy object, to generate a dynamic impact force. The dynamic impact force sensor can measure the magnitude of the impact force. The controller is connected to the dynamic impact force sensor through a signal line, and the magnitude of the impact force can be displayed and recorded through the controller.

[0028] Start the lifting mechanism. As the cage moves upward, the weight pressing on the dynamic impact force sensor, the support plate, and the test platform disappears, and the cage no longer contacts the dynamic impact force sensor. The lateral drive mechanism operates, and the support plate retracts to the initial position and completely exits the cage. Start the lifting mechanism and lower the cage until it reaches the ground to end the operation.

[0029] The dynamic impact force acquisition test device provided by this application can conduct heavy object dynamic impact force tests, is convenient to operate, and is easy to repeat the test; the heavy object dynamic impact force data is easy to collect, the acquisition test results are less affected by external forces, and the test results are accurate; after the impact test, it is necessary to automatically measure and record the heavy object dynamic impact force data through the dynamic impact force sensor and the controller. Although the test work is time-consuming and laborious, the accuracy is relatively high. Description of the Drawings

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0031] Figure 1 It is a schematic diagram of the initial state of the dynamic impact force acquisition test device provided by a specific embodiment in the present application;

[0032] Figure 2 It is a schematic diagram of the intermediate state of the dynamic impact force acquisition test device;

[0033] Figure 3 It is a schematic diagram of the dynamic impact force sensor located directly below the pressure column in the dynamic impact force acquisition test device;

[0034] Figure 4 It is a schematic diagram of the pressure column pressing on the dynamic impact force sensor in the dynamic impact force acquisition test device.

[0035] The markings in the drawings are as follows:

[0036] 1 - lifting motor, 2 - fixed seat, 3 - connecting rope, 4 - cage, 5 - pressing column, 6 - dynamic impact force sensor, 7 - test platform, 8 - driving motor, 9 - screw, 10 - first guide rail, 11 - through hole, 12 - hook, 13 - second guide rail, 14 - support plate. Specific implementation manner

[0037] The core of this application is to provide a dynamic impact force acquisition test device, which can easily obtain the dynamic impact force information of heavy objects and the test results are relatively accurate.

[0038] Next, the technical solutions in the embodiments of this application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

[0039] Please refer to Figures 1 to 4 , Figure 1 which is a schematic diagram of the initial state of the dynamic impact force acquisition test device provided by a specific implementation manner in this application; Figure 2 which is a schematic diagram of the intermediate state of the dynamic impact force acquisition test device; Figure 3 which is a schematic diagram of the dynamic impact force sensor being directly below the pressing column in the dynamic impact force acquisition test device; Figure 4 which is a schematic diagram of the pressing column pressing on the dynamic impact force sensor in the dynamic impact force acquisition test device.

[0040] In a specific implementation manner, the dynamic impact force acquisition test device provided by this application includes:

[0041] The test platform 7 is arranged horizontally and has a through hole 11 thereon;

[0042] The cage 4 is arranged below the through hole 11 and can pass through the through hole 11. The side wall of the cage 4 has an opening that can penetrate horizontally, and the lower end of the cage 4 has a hook 12 for hanging heavy objects;

[0043] The lifting mechanism can drive the cage 4 to move up and down in the through hole 11;

[0044] The support plate 14 is installed on the test platform 7 and can penetrate through the opening of the cage 4;

[0045] The dynamic impact force sensor 6 is fixed on the support plate 14;

[0046] A lateral driving mechanism that can drive the pallet 14 to move laterally. The lateral movement of the pallet 14 can position the dynamic impact force sensor 6 below the cage 4. When the lifting mechanism drives the cage 4 to descend, the cage 4 can be pressed onto the dynamic impact force sensor 6.

[0047] A controller, connected to the dynamic impact force sensor 6 via a signal line.

[0048] In the above structure, the dynamic impact force acquisition test device provided by this application includes a test platform 7, a cage 4, a lifting mechanism, a pallet 14, a dynamic impact force sensor 6, a lateral driving mechanism, and a controller.

[0049] The test platform 7 is arranged horizontally. There is a through hole 11 on the test platform 7. The cage 4 is arranged below the through hole 11. Start the lifting mechanism to drive the cage 4 to move upward along the through hole 11 until the bottom of the cage 4 passes through the through hole 11 and rises to the locking position, as Figure 1 shown.

[0050] When the cage 4 rises to the locking position, start the lateral driving mechanism. The lateral driving mechanism drives the pallet 14 to move laterally towards one side of the cage 4. There is an opening on the side wall of the cage 4. Drive the pallet 14 to pass through the opening of the cage 4 and make the dynamic impact force sensor 6 exactly located below the cage 4, as Figure 3 shown.

[0051] Drive the lifting mechanism in reverse. The cage 4 moves downward so that the cage 4 contacts the dynamic impact force sensor 6. At this time, the cage 4 presses the dynamic impact force sensor 6, the dynamic impact force sensor 6 presses the pallet 14, and the pallet 14 presses the test platform 7.

[0052] Suddenly apply a heavy object, such as a 100 Kg heavy object, to the hook 12 at the lower end of the cage 4 to generate a dynamic impact force. The dynamic impact force sensor 6 can measure the magnitude of the impact force. The controller is connected to the dynamic impact force sensor 6 via a signal line, and the magnitude of the impact force can be displayed and recorded through the controller.

[0053] Start the lifting mechanism. When the cage 4 moves upward, the weights pressing on the dynamic impact force sensor 6, the pallet 14, and the test platform 7 disappear. The cage 4 no longer contacts the dynamic impact force sensor 6. The lateral driving mechanism operates, and the pallet 14 withdraws to the initial position and completely withdraws from the cage 4. Start the lifting mechanism and lower the cage 4 until it reaches the ground to end the operation.

[0054] The dynamic impact force collection test device provided in the present application can carry out dynamic impact force tests on heavy objects. It is easy to operate and easy to repeat tests. The dynamic impact force data of heavy objects are easy to collect, and the collected test results are less affected by external forces, and the test results are accurate. After the impact test, the dynamic impact force sensor 6 and the controller are required to automatically measure and record the dynamic impact force data of the heavy object. The testing work is time-consuming and labor-intensive, and the accuracy is relatively high.

[0055] On the basis of the above specific embodiment, it also includes a first guide rail 10 and a second guide rail 13. The first guide rail 10 and the second guide rail 13 are fixed on the test platform 7. The first guide rail 10 and the second guide rail 13 are aligned and respectively arranged on both sides of the through hole 11, for example, the first guide rail 10 is close to the transverse drive mechanism, and the second guide rail 13 is far away from the transverse drive mechanism. In the initial state, the support plate 14 is stuck in the first guide rail 10. When the support plate 14 passes through the opening of the cage 4, the support plate 14 is stuck in the second guide rail 13. During the movement of the support plate 14, the support plate 14 moves along the first guide rail 10 and the second guide rail 13. The first guide rail 10 and the second guide rail 13 have a guiding and positioning effect on the support plate 14, reducing the left and right shaking of the support plate 14 and ensuring the stable movement of the support plate 14. At the same time, the support plate 14 is stuck in the grooves of the first guide rail 10 and the second guide rail 13, which has a limiting effect on the support plate 14 in the vertical direction, preventing the support plate 14 from jumping up and down due to excessive dynamic impact force, thereby ensuring the accuracy of the test data.

[0056] In another more reliable embodiment, based on any of the above embodiments, the shape of the cage 4 is a ladder-shaped column with a round upper part and a round lower part, that is, the lower part of the cage 4 is square and the upper part is round, and the size of the upper round part is smaller than that of the lower square part, and gradually increases from top to bottom.

[0057] Through-hole 11 is square in shape, and the lower portion of cage 4 has a clearance fit within through-hole 11, meaning the upper circular portion of cage 4 is smaller than through-hole 11. As cage 4 moves upward, the upper circular portion of cage 4 smoothly enters through-hole 11. As the lower square portion of cage 4 enters through-hole 11, if the positions of the two mismatch, the square shape of through-hole 11 generates torque on the lower square portion of cage 4, driving cage 4 to automatically align and center, preventing the cage 4 and through-hole 11 from becoming stuck, allowing the lower portion of cage 4 to smoothly enter through-hole 11.

[0058] Based on the above-mentioned specific embodiments, the trapezoidal outer edges of the cage 4 and the corners of the through hole 11 have rounded corners, which facilitates the rotation of the cage 4 relative to the through hole 11 during the automatic direction calibration process and is not easy to get stuck.

[0059] Based on the above-mentioned specific embodiments, the cage 4 has two pairs of openings, that is, there are openings on all four sides of the cage 4. During the automatic calibration direction, no matter which side of the cage 4 faces the support plate 14, there are openings, and there is always one side through which the support plate 14 can pass, and the test can be carried out, thereby improving work efficiency.

[0060] On the basis of the above-mentioned specific embodiments, the cage 4 has upper and lower guide rails, and the upper and lower guide rails are equipped with a card slot, which can slide up and down along the upper and lower guide rails. When the cage 4 is pressed down on the dynamic impact force sensor 6, the card slot in the cage 4 is just aligned with the first guide rail 10 and the second guide rail 13, and the support plate 14 is simultaneously snapped into the card slot, and the first guide rail 10 and the second guide rail 13 are aligned. The support plate 14, the first guide rail 10 and the second guide rail 13 have a limiting effect on the cage 4, preventing the cage 4 from shaking and maintaining the stability of the cage 4.

[0061] Based on the aforementioned specific embodiments, a pressure column 5 is fixed to the top of the interior of cage 4. When cage 4 descends to press down on dynamic impact force sensor 6, pressure column 5 in cage 4 contacts dynamic impact force sensor 6. At this point, pressure column 5 presses dynamic impact force sensor 6, which in turn presses support plate 14, which in turn presses test platform 7. Pressure column 5 presses the entire cage 4 against dynamic impact force sensor 6, minimizing the contact area and enhancing dynamic impact force sensitivity. This reduces interference from cage 4 and allows for more accurate testing.

[0062] In another more reliable embodiment, based on any of the above embodiments, the lifting mechanism includes a lifting motor 1 and a connecting rope 3. The lifting motor 1 provides power and can be fixed to a fixing base 2. The upper end of the connecting rope 3 is connected to the lifting motor 1 and the lower end is connected to the upper end of the cage 4. The lifting motor 1 can drive the connecting rope 3 to retract and unreel, thereby driving the cage 4 to rise and fall, which is convenient to operate. Preferably, the connecting rope 3 can be a steel wire rope, which is relatively strong and sturdy.

[0063] In another more reliable embodiment, based on any of the above embodiments, the transverse drive mechanism includes a drive motor 8 and a screw 9, the drive motor 8 provides power, the drive motor 8 has a threaded hole, the screw 9 is connected to the threaded hole of the drive motor 8, the screw 9 cooperates with the threaded hole, and the drive motor 8 can drive the screw 9 to move transversely in the threaded hole. The transverse drive mechanism has a simple structure, convenient connection, and easy control. The front end of the screw 9 is fixedly connected to the support plate 14. Specifically, the end of the screw 9 can be provided with a guide block, and the guide block is fixedly connected to the support plate 14. The transverse movement of the screw 9 drives the support plate 14 to move transversely, thereby driving the front end of the support plate 14 through the opening of the cage 4 to the other end of the opening, so that the dynamic impact force sensor 6 is located just below the pressure column 5 so that the pressure column 5 presses on the dynamic impact force sensor 6.

[0064] In another relatively reliable embodiment, based on any of the above embodiments, the hook 12 is a lifting hook, which has an anti - detachment function. Hanging a heavy object on the lifting hook is relatively safe.

[0065] In this specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other.

[0066] The dynamic impact force acquisition test device provided by the present application has been introduced in detail above. Specific examples are used herein to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A dynamic impact force collection test device, characterized in that: include: A test platform (7), the test platform (7) is arranged in a horizontal direction and has a through hole (11) thereon; A cage (4), the cage (4) being arranged below the through hole (11) and capable of passing through the through hole (11), the side wall of the cage (4) having an opening capable of passing through laterally, and the lower end of the cage (4) having a hook (12) for hanging a heavy object; A lifting mechanism capable of driving the cage (4) to move up and down in the through hole (11); a support plate (14), the support plate (14) being mounted on the test platform (7), the support plate (14) being capable of passing through the opening of the cage (4); a dynamic impact force sensor (6), wherein the dynamic impact force sensor (6) is fixed on the supporting plate (14); A transverse driving mechanism, wherein the transverse driving mechanism is capable of driving the support plate (14) to move transversely, wherein the transverse movement of the support plate (14) is capable of positioning the dynamic impact force sensor (6) below the cage (4), and wherein the lifting mechanism drives the cage (4) to descend so that the cage (4) is pressed against the dynamic impact force sensor (6); The controller is connected to the dynamic impact force sensor (6) via a signal line, The method for conducting a heavy object dynamic impact force test using the dynamic impact force acquisition test device comprises: Start the lifting mechanism to drive the cage to move upward along the through hole until the bottom of the cage passes through the through hole and rises to the locking position; When the cage rises to the locking position, the transverse driving mechanism is activated, and the transverse driving mechanism drives the support plate to move laterally toward one side of the cage, drives the support plate to pass through the opening of the cage, and makes the dynamic impact force sensor just below the cage; The lifting mechanism is driven in reverse, and the cage moves downward, so that the cage contacts the dynamic impact force sensor; A heavy object is suddenly applied to the hook at the lower end of the cage, generating a dynamic impact force.

2. The dynamic impact force collection test device according to claim 1, characterized in that: The test platform (7) further comprises a first guide rail (10) and a second guide rail (13) fixed on the test platform (7); the first guide rail (10) and the second guide rail (13) are aligned and respectively arranged on both sides of the through hole (11); and the support plate (14) can be clamped in the first guide rail (10) and the second guide rail (13).

3. The dynamic impact force collection test device according to claim 1, characterized in that: The cage (4) is in the shape of a ladder column with a round upper part and a lower part, the through hole (11) is in the shape of a square, and the lower part of the cage (4) is in clearance fit with the through hole (11).

4. The dynamic impact force collection test device according to claim 3, characterized in that: The trapezoidal outer edges of the cage (4) and the corners of the through hole (11) have rounded corners.

5. The dynamic impact force collection test device according to claim 3, characterized in that: The cage (4) has two pairs of openings.

6. The dynamic impact force collection test device according to claim 3, characterized in that: The cage (4) has upper and lower guide rails, and the upper and lower guide rails are provided with slots that can slide up and down along the slots, and the slots can be aligned with the first guide rail (10) and the second guide rail (13).

7. The dynamic impact force collection test device according to claim 3, characterized in that: A pressure column (5) is fixed to the inner top end of the cage (4), and the pressure column (5) can press on the dynamic impact force sensor (6).

8. The dynamic impact force collection test device according to any one of claims 1 to 7, characterized in that: The lifting mechanism comprises a lifting motor (1), and a connecting rope (3) whose upper end is connected to the lifting motor (1) and whose lower end is connected to the upper end of the cage (4).

9. The dynamic impact force collection test device according to any one of claims 1 to 7, characterized in that: The transverse drive mechanism comprises a drive motor (8) having a threaded hole, a screw rod (9) connected to the threaded hole of the drive motor (8), and a front end of the screw rod (9) is fixedly connected to a support plate (14).

10. The dynamic impact force collection test device according to any one of claims 1 to 7, characterized in that: The hook (12) is a hanging hook.

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