High and low temperature drop hammer impact testing device
By combining the design of a drop channel and a height control unit within a temperature-controlled chamber, the problem of accuracy in impact resistance testing of polymer materials at high or low temperatures is solved, and impact resistance testing of polymer materials at high or low temperatures is realized, ensuring test accuracy and simplicity.
Patent Information
- Application Number
- CN202422552211.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-10-22
AI Technical Summary
When existing polymer material impact resistance testing equipment is tested in high or low temperature environments, the exchange of sample temperature with the ambient temperature during transportation causes the test accuracy to decrease, and the impact resistance under high or low temperature cannot be accurately evaluated.
A high and low temperature drop hammer impact test device was designed, which combines a temperature control box, a falling channel, a height control unit and an impact hammer. By adjusting the temperature in the temperature control box and completing the impact test of the sample in no more than 10 seconds, temperature exchange during sample transportation is avoided. Openable and closable sealing parts and a height control unit are used to ensure test accuracy.
It achieves high-precision impact resistance testing of polymer materials at high or low temperatures, is easy to operate, avoids sample temperature exchange, ensures that the test process is completed within 10 seconds, and improves test accuracy.
Smart Images
Figure CN223346645U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of polymer material testing, in particular to a high and low temperature drop hammer impact testing device. Background Art
[0002] Polymer materials are composed of compounds with relatively high molecular weights. Many common natural materials (such as natural rubber and cotton) are typically composed of polymers, as are synthetic chemical fibers, plastics, and rubber. Polymers that are widely used in everyday life and have reached industrial production scale are generally referred to as general-purpose polymers, while those with specialized uses and functions are referred to as functional polymers. Furthermore, general-purpose polymers are generally divided into five categories based on their intended use: plastics, rubber, fibers, coatings, and adhesives.
[0003] When polymer materials are tested for impact resistance, they are generally placed in an open environment, and the test temperature will vary with the ambient temperature, so it is impossible to evaluate the impact resistance at high or low temperatures. To address this, the impact resistance testing devices on the market are separately equipped with temperature control boxes. When testing polymer materials, the samples are first placed in the temperature control box for heating or cooling. When the required temperature is reached, workers quickly transfer the samples to the testing device for testing. However, during the process of taking the samples out of the temperature control box and transferring them to the testing device, the samples will exchange temperature with the ambient temperature. If the test cannot be completed within 10 seconds, the accuracy of the test will be reduced, resulting in inaccurate high-temperature or low-temperature impact resistance tests of polymer materials. Therefore, the existing impact resistance testing devices need to be improved. Utility Model Content
[0004] The purpose of the utility model is to provide a high and low temperature drop hammer impact testing device which is simple to operate and has high testing accuracy.
[0005] In order to solve the above technical problems, the present invention can be implemented by adopting the following technical solutions:
[0006] A high and low temperature drop hammer impact testing device includes a temperature control box, a falling channel, a height control unit and an impact hammer. The falling channel is arranged longitudinally and passes through the temperature control box, and an impact hole is formed at the penetration point, and the impact hole is provided with an openable / closable sealing member. An impact platform and an impact member are provided in the temperature control box. The impact platform is located below the falling channel, and the impact member is arranged between the impact platform and the falling channel through a limiting unit. The impact hammer is arranged in the falling channel, and the height control unit penetrates from the top of the falling channel to cooperate with the impact hammer and adjust and control the height of the impact hammer.
[0007] In one embodiment, the height control unit includes a winder, a guide wheel and an adjustment rope. The winder is arranged on the top of the temperature control box and has a winder. The guide wheel is installed at the top of the falling channel. One end of the adjustment rope is connected to the winder, and the other end passes through the guide wheel and is placed in the falling channel.
[0008] In one embodiment, one end of the adjustment rope is placed in the falling channel, and the end portion is connected to an electromagnet.
[0009] In one embodiment, the winder is further provided with a control handle.
[0010] In one embodiment, a proximity switch is provided at the upper end of the falling channel.
[0011] In one embodiment, the falling channel is formed by three guide pillars.
[0012] In one embodiment, the limiting unit includes a column and a cross bar. The column is installed on the impact platform. One end of the cross bar is sleeved on the column and locked by a fastening screw. The other end of the cross bar is provided with a limiting hole. The impact member is placed in the limiting hole and can move up and down along the limiting hole.
[0013] In one embodiment, an impact head is provided at the bottom of the impact member.
[0014] In one embodiment, the temperature control box is provided with a sealed door.
[0015] In one embodiment, the sealed door has a transparent window. Beneficial effects
[0016] The utility model discloses a high and low temperature drop hammer impact testing device. When performing an impact resistance test on a polymer material, the test sample is placed on the impact platform and the test sample is placed below the impact piece. At the same time, the height of the impact hammer in the falling channel is controlled by a height control unit. At this time, the temperature of the test sample is regulated by a temperature control box. When the required temperature is reached and the temperature is kept constant for a certain period of time, the worker quickly removes the sealing piece in the impact hole and controls the impact hammer to make it slide freely downward along the falling channel. The impact hammer will act on the impact piece, causing the impact piece to impact the test sample. Whether the test sample is qualified is judged by the impact result, thereby realizing high temperature or low temperature testing of the polymer material, making the test operation simple, and ensuring the accuracy of the test. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the structure of the high and low temperature drop hammer impact test device of the utility model;
[0018] Figure 2This is a schematic diagram of the height control unit structure of the high and low temperature drop hammer impact test device of the present invention;
[0019] Figure 3 This is a schematic diagram of the structure of the falling channel of the high and low temperature drop hammer impact test device of the present invention;
[0020] Figure 4 This is a schematic diagram of the impact member structure of the high and low temperature drop hammer impact test device of the present invention;
[0021] Figure 5 This is a schematic diagram of the limit unit structure of the high and low temperature drop hammer impact testing device of the present invention.
[0022] As shown in the attached figure:
[0023] 100, temperature control box; 200, falling channel; 210, guide column; 220, proximity switch; 300, height control unit; 310, winder; 320, guide wheel; 330, adjustment rope; 340, winder; 350, electromagnet; 360, control handle; 400, impact hammer; 500, impact hole; 600, impact platform; 700, impact piece; 710, impact head; 800, adjustment unit; 810, column; 820, cross bar; 830, fastening screw; 840, limit hole. DETAILED DESCRIPTION
[0024] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0025] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time. In contrast, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only."
[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit this invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0027] See also Figures 1 to 5 A high and low temperature drop hammer impact testing device includes a temperature control box 100, a falling channel 200, a height control unit 300 and an impact hammer 400. The falling channel 200 is longitudinally arranged to penetrate the temperature control box 100, and an impact hole 500 is formed at the penetration point, and the impact hole 500 is provided with an openable / closable blocking member (not shown in the figure). An impact platform 600 and an impact member 700 are provided in the temperature control box 100. The impact platform 600 is located below the falling channel 200, and the impact member 700 is provided between the impact platform 600 and the falling channel 200 through a limiting unit 800. The impact hammer 400 is arranged in the falling channel 200, and the height control unit 300 penetrates from the top of the falling channel 200 to cooperate with the impact hammer 400 and adjust and control the height of the impact hammer 400.
[0028] Specifically, in this embodiment, when conducting an impact resistance test on a polymer material, the test sample is placed in a temperature control box 100 and placed on an impact platform 600, and the test sample is located below the impact member 700. At the same time, the height of the impact hammer 400 in the falling channel 200 is regulated by the height control unit 300 to reach the height required for the test. After the test sample is placed and the height of the impact hammer 400 is regulated, the temperature control box 100 is started, and the temperature inside the temperature control box 100 is adjusted to reach the required temperature. At this time, the worker quickly removes the sealing member (not shown in the figure) at the impact hole 500. The sealing member can be made of high-temperature resistant plastic material or wood material, which is not limited here. The height control unit 300 is controlled to separate the height control unit 300 from the impact hammer 400, and the impact hammer 400 is then Under its own gravity, it falls freely downward along the falling channel 200, and when it falls to the bottom, it will act on the impact piece 700, causing the impact piece 700 to impact the test sample, and then judge whether the test sample is qualified based on the impact state. If the impact state is that the groove has no cracks, it is a qualified product. If the impact state is that the groove has cracks, it is a defective product. Finally, the impact resistance test of the polymer material is achieved, and the test process only needs to adjust the impact hammer 400 to the set height and open the impact hole 500, so that the polymer material is easy to operate during the test. At the same time, since there is no need to transport the test sample during the test, the exchange of the test sample with the ambient temperature can be effectively avoided, and the process from opening the sealing piece to the impact hammer 400 falling test will not exceed 10 seconds, thereby ensuring the accuracy of the test of the polymer material in high or low temperature states (-40℃~100℃).
[0029] In addition, in order to ensure the impact test of the impact piece 700 on the test sample, an impact head 710 is provided at the bottom of the impact piece 700. When the impact hammer 400 acts on the impact piece 700, the impact head 710 at the bottom of the impact piece 700 will impact the test sample, thereby realizing the test of the polymer material and ensuring the accuracy of the impact test.
[0030] In order to facilitate the removal or sealing of the blocking piece in the impact hole 500, the falling channel 200 in this embodiment is formed by three guide pillars 210. Therefore, the blocking piece can be taken and placed through the gaps between the guide pillars 210, so that the impact hole 500 can be quickly opened, so that the test process does not exceed 10 seconds, thereby ensuring the accuracy of the test.
[0031] At the same time, in order to place the test sample into the temperature control box 100 and observe the test in real time, the temperature control box 100 in this embodiment is provided with a sealed door (not shown in the figure), and the sealed door has a transparent window (not shown in the figure). After the test sample is placed in the temperature control box 100, the sealed door can be closed to achieve sealing inside the temperature control box 100 to prevent the temperature from escaping to the outside. During the test, it can be viewed through the transparent window, so that the test process can be monitored and observed in real time.
[0032] See also Figure 2 and Figure 3 In order to achieve the height control of the impact hammer 400, in this embodiment, the height control unit 300 includes a winder 310, a guide wheel 320 and an adjustment rope 330. The winder 310 is arranged on the top of the temperature control box 100 and has a winder wheel 340. The guide wheel 320 is installed at the top of the falling channel 200. One end of the adjustment rope 330 is connected to the winder wheel 340, and the other end passes through the guide wheel 320 and is placed in the falling channel 200. The end of the adjustment rope 330 is placed in the falling channel 200, and its end is connected to the electromagnet 350.
[0033] When the height of the impact hammer 400 in the falling channel 200 is adjusted, the electromagnet 350 magnetizes the impact hammer 400, and the impact hammer 400 is made of a magnetically attractive material, such as iron. After the impact hammer 400 is magnetized, the winding machine 310 drives the winding wheel 340 to rotate, so that the winding wheel 340 reels or unreels the adjustment rope 330, and the adjustment rope 330 slides along the guide wheel 320. The electromagnet 350 at the end drives the impact hammer 400 to slide up and down, thereby adjusting the height of the impact hammer 400 so that its height reaches the height required for testing.
[0034] In order to facilitate the winding or unwinding of the adjustment rope 330 , a control handle 360 is further provided on the winder 310 . By rotating the control handle 360 , the winding wheel 340 is rotated to achieve the winding and unwinding of the adjustment rope 330 .
[0035] Of course, in order to prevent the winding wheel 340 from over-winding the adjustment rope 330 and causing damage to the test device, a proximity switch 220 is provided at the upper end of the falling channel 200. When the electromagnet 350 moves the impact hammer 400 to the highest point, it will cooperate with the proximity switch 220, and the proximity switch 220 will provide signal feedback to remind that the impact hammer 400 has been pulled to the highest point, thereby avoiding damage to the test device caused by excessive winding.
[0036] Finally, see Figure 4 and Figure 5To test samples of varying thicknesses, the limiting unit 800 in this embodiment includes a column 810 and a crossbar 820. The column 810 is mounted on the impact platform 600. One end of the crossbar 820 is sleeved onto the column 810 and secured by a fastening screw 830. The other end of the crossbar 820 defines a limiting hole 840. The impact member 700 is positioned within the limiting hole 840 and is movable up and down along the limiting hole 840. By turning the fastening screw 830, the height of the crossbar 820 can be adjusted. This allows the impact member 700 to automatically adjust its vertical position along the limiting hole 840 according to the thickness of the test sample. This ensures that the impact head 710 and the test sample are properly matched, enabling impact resistance testing of test samples of varying thicknesses and improving the overall practical performance of the testing device.
[0037] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Any person skilled in the art can smoothly implement the present invention according to the drawings and the above description. However, any person skilled in the art who, without departing from the scope of the present invention, makes slight changes, modifications and equivalent changes based on the above disclosed technical content shall be an equivalent embodiment of the present invention. At the same time, any equivalent changes, modifications and equivalent changes made to the above embodiments based on the essential technology of the present invention shall still fall within the scope of protection of the technical solution of the present invention.
Claims
1. A high and low temperature drop hammer impact test device, characterized by: The device comprises a temperature control box, a drop channel, a height control unit and an impact hammer. The drop channel is longitudinally arranged to penetrate the temperature control box and an impact hole is formed at the penetration point. The impact hole is provided with an openable / closable blocking member. An impact platform and an impact piece are provided in the temperature control box. The impact platform is located below the falling channel, and the impact piece is provided between the impact platform and the falling channel through a limiting unit. The impact hammer is arranged in the falling channel, and the height control unit penetrates from the top of the falling channel to cooperate with the impact hammer and adjust and control the height of the impact hammer.
2. The high and low temperature drop hammer impact testing device according to claim 1, characterized in that: The height control unit includes a winder, a guide wheel and an adjustment rope. The winder is arranged on the top of the temperature control box and has a winder. The guide wheel is installed at the top of the falling channel. One end of the adjustment rope is connected to the winder, and the other end passes through the guide wheel and is placed in the falling channel.
3. The high and low temperature drop hammer impact testing device according to claim 2, characterized in that: One end of the adjusting rope is placed in the falling channel, and the end portion is connected with an electromagnet.
4. The high and low temperature drop hammer impact testing device according to claim 2, characterized in that: The winder is also provided with a control handle.
5. The high and low temperature drop hammer impact testing device according to claim 1, characterized in that: A proximity switch is provided at the upper end of the falling channel.
6. The high and low temperature drop hammer impact testing device according to claim 1, characterized in that: The falling channel is formed by three guide pillars.
7. The high and low temperature drop hammer impact testing device according to claim 1, characterized in that: The limiting unit includes a column and a cross bar. The column is installed on the impact platform. One end of the cross bar is sleeved on the column and locked by a fastening screw. The other end of the cross bar is provided with a limiting hole. The impact piece is placed in the limiting hole and can move up and down along the limiting hole.
8. The high and low temperature drop hammer impact testing device according to claim 7, characterized in that: An impact head is provided at the bottom of the impact piece.
9. The high and low temperature drop hammer impact testing device according to claim 1, characterized in that: The temperature control box is provided with a sealed door.
10. The high and low temperature drop hammer impact testing device according to claim 9, characterized in that: The sealed door is provided with a transparent window.