Impact strength testing machine

Abstract

The utility model discloses an impact strength testing machine which comprises a working table, the top of the working table is fixedly connected with a U-shaped seat, the top of the working table is fixedly connected with a concentric-square-shaped baffle, a building material sample to be subjected to an impact test and placed on the top of the working table is arranged in the concentric-square-shaped baffle, and a hydraulic cylinder is fixedly installed on the top of the U-shaped seat. The extending end of the hydraulic cylinder extends into the U-shaped base and is fixedly connected with a lifting plate, and the bottom of the lifting plate is fixedly connected with a pressure sensor. By arranging a series of structures, the impact hammer can be conveniently driven to move downwards to carry out impact strength test work on a building material sample to be subjected to impact test, the upper part of the concentric-square-shaped baffle can be safely covered and protected integrally and automatically when the impact hammer moves downwards to carry out impact test, and the phenomenon that disintegrating slag generated by the impact test splashes outwards to hurt personnel is avoided; and the use safety is improved, disintegrating slag can be automatically and rapidly cleaned, discharged and collected after use, workers do not need to conduct cleaning work independently, and the use convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of impact test equipment, in particular to an impact strength testing machine. Background Art

[0002] Impact test, also known as impact resistance test, is a commonly used quality inspection method for building materials. When conducting impact strength tests on building material samples, an impact strength tester is required. The impact hammer of the tester is used to impact the material with appropriate pressure to conduct impact resistance inspection.

[0003] When using the existing impact strength testing machine, 1. It often occurs that fragments are splashed outward due to unqualified materials, and the splashed fragments are easy to injure personnel, and the safety of use is not ideal; 2. After the impact test, the debris on the workbench of the testing machine cannot be automatically cleaned and collected, and personnel need to do the cleaning work separately, which is not convenient to use. In view of this, we propose an impact strength testing machine to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide an impact strength testing machine to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an impact strength testing machine, comprising a workbench, a U-shaped seat is fixedly connected to the top of the workbench, a round-shaped baffle is fixedly connected to the top of the workbench, a sample of building materials to be impact tested is arranged on the top of the workbench in the round-shaped baffle, a hydraulic cylinder is fixedly installed on the top of the U-shaped seat, the protruding end of the hydraulic cylinder extends into the U-shaped seat and is fixedly connected to a lifting plate, a pressure sensor is fixedly connected to the bottom of the lifting plate, an impact hammer is fixedly connected to the bottom of the pressure sensor, the impact hammer is located above the sample of building materials to be impact tested, the hydraulic cylinder is used to drive the lifting plate to move up and down, the lifting plate is used to drive the impact hammer to impact the sample of building materials to be impacted downward through the pressure sensor, the pressure sensor is used to detect the impact pressure, and the impact strength test is realized;

[0006] The top of the workbench is provided with a slag discharge hole located inside the circular baffle, and a scraping and pushing slag cleaning component is installed on the left side of the circular baffle, and the scraping and pushing slag cleaning component is used to scrape and push the broken slag in the circular baffle into the slag discharge hole after the impact test building material sample is taken out;

[0007] A circular support plate is fixedly sleeved on the circular baffle plate, a circular guard plate is arranged above the circular support plate, a lifting plate sliding sleeve is arranged in the circular guard plate, two elastic vertical guide pulling assemblies are fixedly connected to both sides of the top of the lifting plate, the elastic vertical guide pulling assemblies are fixedly connected to the top of the circular guard plate, the elastic vertical guide pulling assemblies are used to drive the circular guard plate downward to cover the top of the circular support plate and elastically tighten it when the lifting plate moves downward, so as to realize the shielding and splashing prevention of debris by the circular guard plate.

[0008] Preferably, the scraper and push slag cleaning assembly includes a multi-stage electric push rod fixedly installed on the left side of the circular baffle, a storage groove with an opening at the bottom is opened on the left inner wall of the circular baffle, a scraper and push plate movably sleeved in the storage groove is provided with a scraper and push plate movably contacting the top of the workbench, the protruding end of the multi-stage electric push rod extends into the storage groove and is fixedly connected to the left side of the scraper and push plate; the multi-stage electric push rod and the scraper and push plate cooperate, and the multi-stage electric push rod is used to drive the scraper and push plate to move right, and the scraper and push plate is used to push the impacted slag in the circular baffle to the right into the slag discharge hole for discharge.

[0009] The cam-shaped support plate is elastically tightened by the elastic force of the spring, thereby achieving the effect of integrally driving the return-shaped guard plate to move downward and elastically tightening the return-shaped guard plate when the lifting plate moves downward.

[0010] Preferably, four avoidance holes are provided in a rectangular shape on the top inner wall of the U-shaped seat, and the T-shaped guide rod is located in the corresponding avoidance holes and does not contact the inner walls of the avoidance holes.

[0011] Preferably, a circular elastic rubber pad is bonded and fixed to the top of the circular support plate.

[0012] Preferably, four corners of the bottom of the workbench are fixedly connected with supporting legs.

[0013] Preferably, a slag receiving box is placed below the workbench and below the slag discharge hole.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. This impact strength testing machine can drive the impact hammer to move downward to impact and detect the impact pressure through the cooperation of the set circular baffle, workbench, hydraulic cylinder, lifting plate, pressure sensor and impact hammer, which is convenient for impact strength testing of building material samples to be impact tested;

[0016] 2. This impact strength testing machine, through the cooperation of the set circular baffle, lifting plate, circular guard plate, circular support plate and elastic vertical guide pulling assembly, can automatically cover and protect the upper part of the circular baffle in a downward movement impact test, and can limit the debris inside the circular baffle and the circular guard plate, effectively avoiding the debris generated by the impact test from splashing outward, thereby avoiding the phenomenon of injury to personnel due to the splashing of debris, and improving the safety of use;

[0017] 3. This impact strength testing machine, through the cooperation of the circular baffle and the scraping and pushing slag removal component, can automatically and quickly clean, discharge and collect the broken slag after use, without the need for personnel to perform cleaning work separately, thereby improving the convenience of use.

[0018] The utility model is provided with a series of structures, which is convenient for driving the impact hammer to move downward to carry out the impact strength test of the building material sample to be impact tested. When moving downward for the impact test, the upper part of the circular baffle is automatically and safely covered and protected to avoid the phenomenon that the debris produced by the impact test is splashed outwards and injures personnel, thereby improving the safety of use. Moreover, the debris can be automatically and quickly cleaned, discharged and collected after use, without the need for personnel to perform the cleaning work alone, thereby improving the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional structural schematic diagram of an impact strength testing machine proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of the main cross-sectional structure of an impact strength testing machine proposed by the utility model;

[0021] Figure 3 For the utility model Figure 2 A schematic diagram of the enlarged structure of part A in the figure.

[0022] In the figure: 1. workbench; 2. U-shaped seat; 3. hydraulic cylinder; 4. lifting plate; 5. pressure sensor; 6. impact hammer; 7. circular baffle; 8. circular support plate; 9. slag discharge hole; 10. storage groove; 11. scraper and push plate; 12. multi-stage electric push rod; 13. circular guard plate; 14. L-shaped support block; 15. T-shaped guide rod; 16. spring; 17. avoidance hole; 18. circular elastic rubber pad. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figures 1 to 3 As shown, an impact strength testing machine proposed in this embodiment includes a workbench 1, a U-shaped seat 2 is fixedly connected to the top of the workbench 1, and legs are fixedly connected to the four corners of the bottom of the workbench 1 to support the workbench 1 at the bottom, a circular baffle 7 is fixedly connected to the top of the workbench 1, and a sample of building materials to be impact tested is placed on the top of the workbench 1 in the circular baffle 7, a hydraulic cylinder 3 is fixedly installed on the top of the U-shaped seat 2, and the protruding end of the hydraulic cylinder 3 extends into the U-shaped seat 2 and is fixedly connected to a lifting plate 4, a pressure sensor 5 is fixedly connected to the bottom of the lifting plate 4, and an impact hammer 6 is fixedly connected to the bottom of the pressure sensor 5, and the impact hammer 6 is located above the sample of building materials to be impacted. The hydraulic cylinder 3 is used to drive the lifting plate 4 to move up and down, and the lifting plate 4 is used to drive the impact hammer 6 to impact the sample of building materials to be impacted downward through the pressure sensor 5, and the pressure sensor 5 is used to detect the impact pressure to realize the impact strength experiment.

[0025] A slag discharge hole 9 located inside the circular baffle 7 is provided on the top of the workbench 1, a scraping and pushing slag cleaning component is installed on the left side of the circular baffle 7, and a slag receiving box located below the slag discharge hole 9 is placed below the workbench 1. The scraping and pushing slag cleaning component is used to scrape and push the broken slag in the circular baffle 7 into the slag discharge hole 9 after the impact test building material sample is taken out, and the provided slag receiving box is used to receive and collect the broken slag discharged from the slag discharge hole 9 at the bottom; a circular support plate 8 is fixedly sleeved on the circular baffle 7, a circular guard plate 13 is provided above the circular support plate 8, and the lifting plate 4 is slidably sleeved on the circular guard plate 13, two elastic vertical guide pulling components are fixedly connected to both sides of the top of the lifting plate 4, the elastic vertical guide pulling components are fixedly connected to the top of the circular guard plate 13, and a circular elastic rubber pad 18 is bonded and fixed to the top of the circular support plate 8. The elastic vertical guide pulling components are used to drive the circular guard plate 13 downward to cover the top of the circular support plate 8 and elastically tighten it when the lifting plate 4 moves downward, and the circular guard plate 13 is used to shield and prevent splashing of debris. The set circular elastic rubber pad 18 prevents the circular guard plate 13 from directly colliding with the circular support plate 8 when it moves downward.

[0026] Specifically, the scraping and pushing slag cleaning assembly includes a multi-stage electric push rod 12 fixedly installed on the left side of the circular baffle 7, a storage groove 10 with an open bottom is provided on the left inner wall of the circular baffle 7, a scraping and pushing plate 11 movably sleeved in the storage groove 10 and movably contacting the top of the workbench 1, the protruding end of the multi-stage electric push rod 12 extends into the storage groove 10 and is fixedly connected to the left side of the scraping and pushing plate 11, wherein the left inner wall of the storage groove 10 is provided with a movable through hole for the protruding end of the multi-stage electric push rod 12 to movably pass through; the multi-stage electric push rod 12 and the scraping and pushing plate 11 cooperate, and the multi-stage electric push rod 12 is used to drive the scraping and pushing plate 11 to move right, and the scraping and pushing plate 11 is used to push the impacted slag in the circular baffle 7 to the right to the slag discharge hole 9 for discharge.

[0027] Furthermore, the elastic vertical guide pulling assembly includes a T-shaped guide rod 15, and the top two sides of the lifting plate 4 are respectively fixedly connected to the bottom ends of the two corresponding T-shaped guide rods 15, and an L-shaped support block 14 is slidably sleeved on the T-shaped guide rod 15, wherein the top of the L-shaped support block 14 is provided with a vertical guide hole that is slidably sleeved with the outer side of the corresponding T-shaped guide rod 15, and the L-shaped support block 14 is slidably sleeved on the corresponding T-shaped guide rod 15 through the vertical guide hole, which plays the effect of vertical sliding guiding the T-shaped guide rod 15, and the bottom of the L-shaped support block 14 is fixedly connected to the top of the return guard plate 13, and a spring 16 is fixedly connected between the top of the L-shaped support block 14 and the top inner wall of the T-shaped guide rod 15, and the spring 16 is movably sleeved on the corresponding T-shaped guide rod 15, and four avoidance holes 17 are rectangularly opened on the top inner wall of the U-shaped seat 2. The T-shaped guide rod 15 is located in the corresponding avoidance hole 17 and does not contact the inner wall of the avoidance hole 17, which plays the effect of avoiding and preventing the T-shaped guide rod 15 from colliding at the top; the T-shaped guide rod 15, the L-shaped support block 14 and the spring 16 are arranged to cooperate, and when the lifting plate 4 moves downward, the L-shaped support block 14 will be driven downward by the T-shaped guide rod 15 and the spring 16 in turn. When the L-shaped support block 14 drives the return guard plate 13 to move down to the return support plate 8, it is blocked and restricted. The lifting plate 4 that continues to move downward drives the T-shaped guide rod 15 to slide downward in the vertical guide hole on the corresponding L-shaped support block 14, and compresses the spring 16. The elastic force of the spring 16 is used to realize the elastic tightening of the return guard plate 13 through the corresponding L-shaped support block 14, thereby realizing the effect of driving the return guard plate 13 to move downward and elastically tightening it as a whole when the lifting plate 4 moves downward.

[0028] The method of using the present embodiment is as follows: when in use, the building material sample to be impact tested is placed on the workbench 1 at the inner position of the circular baffle 7, the hydraulic cylinder 3 is started in the positive direction to drive the lifting plate 4 to move downward, the lifting plate 4 drives the impact hammer 6 to move downward through the pressure sensor 5, the lifting plate 4 drives the four L-shaped support blocks 14 to move downward through the four T-shaped guide rods 15 and the four springs 16 in turn, the four L-shaped support blocks 14 drive the circular guard plate 13 to move downward, when the circular guard plate 13 moves down to contact the top of the circular elastic rubber pad 18, it is blocked and restricted by it, at this time, the lifting plate 4 that continues to move downward drives the four T-shaped guide rods 15 to slide downward in the vertical guide holes on the corresponding L-shaped support blocks 14 respectively, and compresses the springs 16, and uses the elastic force to release the elastic force. The elastic force of the spring 16 realizes elastic tightening of the return guard plate 13 through the corresponding L-shaped support block 14, so as to realize the effect of driving the return guard plate 13 to move downward and elastically tightening it when the lifting plate 4 moves downward, wherein the lifting plate 4 that continues to move downward also drives the impact hammer 6 to impact the building material sample to be subjected to the impact test downward through the pressure sensor 5, and uses the pressure sensor 5 to detect the impact pressure to realize the impact strength test. By driving the return guard plate 13 to cover downward during the downward impact test, the effect of automatically shielding and protecting the upper part during the impact strength test is realized, effectively avoiding the phenomenon of debris generated by the impact test splashing outward, thereby avoiding the phenomenon of injury to personnel due to the splashing of debris, and improving the safety of use;

[0029] After the impact test is completed, the hydraulic cylinder 3 is started in the reverse direction to drive the lifting plate 4 to rise up. The lifting plate 4 drives the impact hammer 6 to move back and reset upward through the pressure sensor 5. The lifting plate 4 drives the T-shaped guide rod 15 to relax the compression force on the corresponding spring 16 upward. After the compression force is released, the T-shaped guide rod 15 that continues to move upward drives the return guard plate 13 to rise through the corresponding spring 16 and the L-shaped support block 14 in turn, and the blocked state is released, so that the tested building material sample can be taken out, and then the multi-stage electric push rod 12 is started forward to drive the scraper and push plate 11 to move right. The scraper and push plate 11 pushes the debris in the return baffle 7 to the right into the slag discharge hole 9. The debris is automatically discharged downward through the slag discharge hole 9 and collected in the slag receiving box, so as to achieve the effect of automatically and quickly cleaning, discharging and collecting the debris after use, without the need for personnel to perform cleaning work alone, thereby improving the convenience of use.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An impact strength testing machine, comprising a workbench (1), characterized in that: The top of the workbench (1) is fixedly connected to a U-shaped seat (2), the top of the workbench (1) is fixedly connected to a return baffle (7), a sample of building materials to be impact tested and placed on the top of the workbench (1) is arranged inside the return baffle (7), a hydraulic cylinder (3) is fixedly installed on the top of the U-shaped seat (2), the protruding end of the hydraulic cylinder (3) extends into the U-shaped seat (2) and is fixedly connected to a lifting plate (4), the bottom of the lifting plate (4) is fixedly connected to a pressure sensor (5), the bottom of the pressure sensor (5) is fixedly connected to an impact hammer (6), and the impact hammer (6) is located above the sample of building materials to be impact tested; The top of the workbench (1) is provided with a slag discharge hole (9) located inside the circular baffle (7), and a scraping and pushing slag removal component is installed on the left side of the circular baffle (7); A circular support plate (8) is fixedly sleeved on the circular baffle (7), a circular guard plate (13) is provided above the circular support plate (8), the lifting plate (4) is slidably sleeved in the circular guard plate (13), two elastic vertical guide pulling assemblies are fixedly connected to both sides of the top of the lifting plate (4), and the elastic vertical guide pulling assemblies are fixedly connected to the top of the circular guard plate (13).

2. An impact strength testing machine according to claim 1, characterized in that: The scraping and pushing slag cleaning assembly comprises a multi-stage electric push rod (12) fixedly mounted on the left side of the circular baffle (7); a receiving groove (10) with an open bottom is provided on the left inner wall of the circular baffle (7); a scraping and pushing plate (11) movably sleeved in the receiving groove (10) and in movably contact with the top of the workbench (1); and an extended end of the multi-stage electric push rod (12) extends into the receiving groove (10) and is fixedly connected to the left side of the scraping and pushing plate (11).

3. An impact strength testing machine according to claim 1, characterized in that: The elastic vertical guide pulling assembly comprises a T-shaped guide rod (15), the top two sides of the lifting plate (4) are respectively fixedly connected to the bottom ends of the two corresponding T-shaped guide rods (15), an L-shaped support block (14) is slidably sleeved on the T-shaped guide rod (15), the bottom of the L-shaped support block (14) is fixedly connected to the top of the return-shaped guard plate (13), a spring (16) is fixedly connected between the top of the L-shaped support block (14) and the top inner wall of the T-shaped guide rod (15), and the spring (16) is movably sleeved on the corresponding T-shaped guide rod (15).

4. An impact strength testing machine according to claim 3, characterized in that: Four avoidance holes (17) are provided in a rectangular shape on the inner wall of the top of the U-shaped seat (2), and the T-shaped guide rod (15) is located in the corresponding avoidance holes (17) and does not contact the inner wall of the avoidance holes (17).

5. The impact strength testing machine according to claim 1, characterized in that: A circular elastic rubber pad (18) is bonded and fixed to the top of the circular support plate (8).

6. An impact strength testing machine according to claim 1, characterized in that: The four corners of the bottom of the workbench (1) are all fixedly connected with supporting legs.

7. An impact strength testing machine according to claim 1, characterized in that: A slag receiving box is placed below the workbench (1) and is located below the slag discharge hole (9).

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