An impact tester for non-slip coatings

Abstract

The application belongs to the technical field of impact test, and particularly relates to an impact testing machine for anti-skid coating, which comprises a base and a guide cylinder, an impact hammer and an impact head are slidably arranged in the guide cylinder, a mounting bracket is rotatably arranged on the base, the guide cylinder is connected with the base through the mounting bracket, the mounting bracket comprises a mounting arm, a horizontal shaft and a tooth convex are arranged on the mounting arm; the impact testing machine for anti-skid coating is rotatably connected with the base through the mounting arm of the mounting bracket, cooperates with a screw rod, a threaded sleeve and a stretching mechanism of an adjusting mechanism, the angle of the guide cylinder can be adjusted, the switching between vertical impact and inclined impact can be completed, in the deflection process of the mounting arm, the tooth convex is engaged with a rack of a sliding seat, the impact seat can be synchronously moved along a sliding groove of the base, the impact head can be accurately abutted with a sample at all times, an H-shaped frame of a pressing mechanism is connected with the base through the horizontal shaft, cooperates with the elastic force of a torsional spring and the sliding adjustment of a sliding frame and a connecting plate, and the sample can be quickly pressed on the impact seat.

Description

Technical Field

[0001] This invention belongs to the field of impact testing technology, and specifically relates to an impact testing machine for an anti-slip coating. Background Technology

[0002] The anti-slip coating impact tester is a core testing device used to evaluate the impact resistance of anti-slip coatings. By simulating impact scenarios such as collisions and drops that the coating may withstand in actual applications, it accurately tests the integrity, adhesion, and stability of the anti-slip performance of the coating under specific impact energy.

[0003] Traditional impact testing machines generally suffer from fixed structures and insufficient adjustment flexibility, making it difficult to meet the testing requirements of both vertical and inclined impacts. Most devices can only perform impact tests at a single angle. Regarding specimen fixation, traditional equipment often uses bolt clamping or direct hand-held methods: bolt clamping is cumbersome and inefficient, while hand-held fixation can easily cause the specimen to shift during impact, thus affecting the accuracy of the test results. Summary of the Invention

[0004] The purpose of this invention is to provide an impact testing machine for an anti-slip coating with an adjustable tilt angle in order to solve the above-mentioned problems.

[0005] The present invention achieves the above objectives through the following technical solutions:

[0006] An impact testing machine for an anti-slip coating includes a base and a guide cylinder. An impact hammer and an impact head are slidably disposed inside the guide cylinder. A mounting frame is rotatably disposed on the base. The guide cylinder is connected to the base through the mounting frame. The mounting frame includes a mounting arm, and a horizontal shaft and toothed protrusions are disposed on the mounting arm.

[0007] It also includes:

[0008] A sliding seat is slidably mounted on a base, a rack is fixedly mounted on the sliding seat, the rack engages with a toothed protrusion, and an impact seat is mounted on the sliding seat;

[0009] An adjusting mechanism includes a lead screw and a threaded sleeve threadedly connected to the lead screw. The threaded sleeve is rotatably mounted on a mounting arm. A tensioning mechanism is provided at the lower end of the lead screw, and the tensioning mechanism is rotatably mounted on a base.

[0010] A pressing mechanism, comprising an H-shaped frame rotatably mounted on a horizontal axis, and a connecting plate slidably mounted on the H-shaped frame.

[0011] As a further optimization of the present invention, a handwheel is fixedly provided at the upper end of the lead screw, a rotating ring is rotatably provided on the lead screw, and crossbars are fixedly provided on both sides of the rotating ring.

[0012] As a further optimization of the present invention, the tensioning mechanism includes a spline, which is disposed on a lead screw. A hinge seat is rotatably disposed on the base, and a spline sleeve is rotatably disposed on the hinge seat. The spline sleeve is connected to the lead screw via the spline. A spring is disposed inside the spline sleeve, and both ends of the spring are respectively connected to the lead screw and the spline sleeve. A limiting ring is fixedly disposed on the lead screw, and the limiting ring movably abuts against the spline sleeve.

[0013] As a further optimization of the present invention, the mounting arm is rotatably mounted on the base via a horizontal axis, and an avoidance groove is provided on the mounting arm. The threaded sleeve is rotatably mounted in the avoidance groove, and the end of the mounting arm is configured as a semi-circular structure, with the toothed array provided on the semi-circular end.

[0014] As a further optimization of the present invention, a guide strip is provided on the inner surface of the H-shaped frame, a sliding frame is slidably disposed on the guide strip, a guide groove is provided on the sliding frame, the guide groove is sleeved on the guide strip, a connecting plate is fixedly disposed on the sliding frame, an arc-shaped groove is provided on the connecting plate, a crossbar is slidably disposed in the arc-shaped groove, a torsion spring is sleeved on the horizontal shaft, and the two ends of the torsion spring are respectively connected to the H-shaped frame and the base.

[0015] As a further optimization of the present invention, a sliding groove is provided on the base, and the sliding seat is slidably disposed in the sliding groove.

[0016] As a further optimization of the present invention, the guide cylinder includes a cylinder body, a movable groove is provided on the cylinder body, observation windows are provided on both sides of the cylinder body, an embedding groove is provided on the observation window, and a positioning ring is slidably sleeved on the cylinder body.

[0017] As a further optimization of the present invention, scales are fixedly provided on both sides of the impact head, and the scales are slidably disposed in the embedded groove.

[0018] As a further optimization of the present invention, a handle is fixedly provided on the impact hammer, and the handle is slidably disposed in the moving groove.

[0019] The beneficial effects of this invention are as follows:

[0020] 1. Unlike existing technologies, in actual use, the angle of the guide cylinder can be adjusted by rotating the mounting arm of the mounting bracket with the base, in conjunction with the lead screw, threaded sleeve and tensioning mechanism of the adjustment mechanism. The switching between vertical impact and tilting impact can be completed without disassembling the parts. During the deflection of the mounting arm, the toothed convex part meshes with the rack of the sliding seat, which can drive the impact seat to move synchronously along the slide groove of the base, ensuring that the impact head always accurately contacts the sample, greatly improving the testing flexibility and accuracy.

[0021] 2. Unlike existing technologies, in actual use, the H-shaped frame of the pressing mechanism is connected to the base through a horizontal shaft. With the elastic force of the torsion spring and the sliding adjustment of the sliding frame and connecting plate, the sample can be quickly pressed onto the impact seat, avoiding sample displacement during impact. At the same time, it simplifies the sample fixing operation and improves testing efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is the present invention. Figure 1 Enlarged structural diagram at point A in the middle;

[0024] Figure 3 This is the present invention. Figure 1 Explosion structure diagram;

[0025] Figure 4 This is an exploded view of the adjusting mechanism of the present invention;

[0026] Figure 5 This is an exploded structural diagram of the pressing mechanism of the present invention;

[0027] Figure 6 This is a schematic diagram of the exploded structure of the guide tube of the present invention;

[0028] Figure 7 This is the present invention. Figure 6 Enlarged structural diagram at point B;

[0029] Figure 8 This is a schematic diagram of the mounting bracket and sliding seat structure of the present invention.

[0030] In the diagram: 1. Base; 11. Slide groove; 2. Mounting bracket; 21. Mounting arm; 211. Horizontal axis; 212. Clearance groove; 22. Tooth protrusion; 3. Guide cylinder; 31. Cylinder body; 311. Embedded groove; 32. Moving groove; 33. Observation window; 4. Sliding seat; 41. Rack; 42. Impact seat; 5. Adjustment mechanism; 51. Lead screw; 511. Handwheel; 52. Threaded sleeve; 53. Tensioning mechanism; 53 1. Spline; 532. Spline sleeve; 533. Hinge seat; 534. Restriction ring; 535. Spring; 54. Rotating ring; 541. Crossbar; 6. Pressing mechanism; 61. H-shaped frame; 611. Guide bar; 62. Sliding frame; 621. Guide groove; 63. Connecting plate; 631. Arc groove; 64. Torsion spring; 7. Impact hammer; 71. Handle; 8. Impact head; 81. Scale; 9. Positioning ring. Detailed Implementation

[0031] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0032] Example 1, such as Figure 1 - Figure 8 As shown, an impact testing machine for an anti-slip coating includes a base 1 and a guide cylinder 3. An impact hammer 7 and an impact head 8 are slidably disposed inside the guide cylinder 3. The guide cylinder 3 includes a cylinder body 31 with a moving groove 32. Observation windows 33 are provided on both sides of the cylinder body 31, and embedded grooves 311 are provided on the observation windows 33. A positioning ring 9 is slidably disposed on the cylinder body 31, and a locking screw is provided on the positioning ring 9. Scales 81 are fixedly disposed on both sides of the impact head 8, which facilitates the determination of the impact head 8 relative to the ground. The distance of the impact hammer 7 is indicated by a scale 81 slidably set in the embedded groove 311. A handle 71 is fixedly set on the impact hammer 7 and slidably set in the moving groove 32. The moving groove 32 provides moving space for the handle 71, making it convenient for the operator to accurately control the movement of the impact hammer 7 through the handle 71. The observation window 33 facilitates the observation of the scale 81. The embedded groove 311 provides guidance for the scale 81 to prevent the scale 81 from deviating. The positioning ring 9 cooperates with the scale 81 to quickly and accurately determine the impact distance and improve the test accuracy.

[0033] like Figure 1 and Figure 8 As shown, a mounting bracket 2 is rotatably mounted on the base 1, and the guide cylinder 3 is connected to the base 1 through the mounting bracket 2. The mounting bracket 2 includes a mounting arm 21, and a horizontal shaft 211 is provided on the mounting arm 21. The mounting arm 21 is rotatably mounted on the base 1 through the horizontal shaft 211. An avoidance groove 212 is provided on the mounting arm 21, and the end of the mounting arm 21 is set as a semi-circular structure. The semi-circular end is provided with an array of toothed protrusions 22. The horizontal shaft 211 allows the mounting arm 21 to rotate flexibly, providing a basis for the guide cylinder 3 to deflect to adjust the impact direction.

[0034] like Figure 3 and Figure 8 As shown, a groove 11 is provided on the base 1, and a sliding seat 4 is slidably arranged in the groove 11. A rack 41 is fixedly arranged on the sliding seat 4, and the rack 41 meshes with the toothed protrusion 22. An impact seat 42 is provided on the sliding seat 4, and a groove is provided on the impact seat 42 so that the sample can deform after being impacted. The groove 11 provides a stable sliding guide for the sliding seat 4, ensuring that the sliding seat 4 moves smoothly without deviation. The meshing transmission between the rack 41 and the toothed protrusion 22 is precise and reliable, which enables the impact seat 42 to adjust its position synchronously with the rotation of the mounting arm 21, ensuring that the sample is always precisely aligned with the impact head 8. The impact seat 42 provides a platform for placing the sample.

[0035] like Figure 3 - Figure 4 As shown, the mounting bracket 2 is equipped with an adjustment mechanism 5, which includes a lead screw 51 and a threaded sleeve 52 threadedly connected to the lead screw 51. The threaded sleeve 52 is rotatably disposed in a clearance groove 212, which prevents interference between the mounting arm 21 and the threaded sleeve 52 when rotating, ensuring smooth movement. A handwheel 511 is fixedly disposed at the upper end of the lead screw 51, and a rotating ring 54 is rotatably disposed on the lead screw 51. Crossbars 541 are fixedly disposed on both sides of the rotating ring 54. A tensioning mechanism 53 is disposed at the lower end of the lead screw 51, which includes a spline 531 disposed on the lead screw 51. A hinge seat 533 is rotatably disposed on the base 1, and a spline sleeve 532 is rotatably disposed on the hinge seat 533. The spline sleeve 532 passes through the spline 531. A spring 535 is installed inside the spline sleeve 532 connected to the lead screw 51. The two ends of the spring 535 are connected to the lead screw 51 and the spline sleeve 532 respectively. A limiting ring 534 is fixedly installed on the lead screw 51. The limiting ring 534 is in movable contact with the spline sleeve 532. The handwheel 511 allows the operator to rotate the lead screw 51 easily, saving effort and making it easy to control the adjustment range. The threaded connection between the lead screw 51 and the threaded sleeve 52 has high transmission accuracy and can accurately adjust the rotation angle of the mounting arm 21, thereby accurately controlling the impact direction. The spline 531 and the spline sleeve 532 cooperate to ensure that the lead screw 51 can move axially and transmit torque. The spring 535 provides a restoring force for the lead screw 51, and the limiting ring 534 can prevent the lead screw 51 from moving too axially and excessively compressing the spring 535.

[0036] like Figure 2 , Figure 3 and Figure 5As shown, the mounting frame 2 is equipped with a pressing mechanism 6, which includes an H-shaped frame 61. The H-shaped frame 61 is rotatably mounted on the horizontal shaft 211. A connecting plate 63 is slidably mounted on the H-shaped frame 61. A guide strip 611 is provided on the inner surface of the H-shaped frame 61. A sliding frame 62 is slidably mounted on the guide strip 611. A guide groove 621 is provided on the sliding frame 62 and fits onto the guide strip 611. A connecting plate 63 is fixedly mounted on the sliding frame 62. An arc-shaped groove 631 is provided on the connecting plate 63. A crossbar 541 is slidably mounted in the arc-shaped groove 631. In this way, through the cooperation of the rotating ring 54 and the crossbar 541, the lifting motion of the lead screw 51 can be transmitted to the H-shaped frame 61. The H-shaped frame 61 can press the sample at any angle, so that the lead screw 51 can press the sample at any angle. A torsion spring 64 is sleeved on the horizontal shaft 211. The two ends of the torsion spring 64 are connected to the H-shaped frame 61 and the base 1 respectively. The H-shaped frame 61 is rotatably mounted on the horizontal shaft 211 and can be deflected independently. The guide bar 611 cooperates with the guide groove 621 to provide sliding guidance for the sliding frame 62 and avoid interference with the pressing mechanism 6 when the mounting arm 21 deflects. The arc groove 631 allows the cross bar 541 to slide flexibly when the mounting arm 21 rotates, ensuring that the pressing function of the pressing mechanism 6 is not affected. The torsion spring 64 provides a continuous and stable torque, which can force the H-shaped frame 61 to reset, ensuring that the sample is firmly pressed and preventing the sample from loosening during the test.

[0037] It should be noted that the working process of the impact testing machine for this anti-slip coating is as follows:

[0038] Before the test, the operator pulls the lead screw 51, which moves on the spline sleeve 532, causing the rotating ring 54 and the crossbar 541 to move. During this movement, the crossbar 541 moves the connecting plate 63. Since the connecting plate 63 is fixed to the sliding frame 62, the mounting arm 21 and the H-shaped frame 61 deflect simultaneously. During this process, the sliding frame 62 slides on the guide strip 611 inside the H-shaped frame 61 via the guide groove 621, preventing interference when the mounting arm 21 and the H-shaped frame 61 deflect. After the H-shaped frame 61 deflects, the sample is placed on the impact seat 42. During this process, the torsion spring 64 provides torque to force the H-shaped frame 61 to return to its original position, thus pressing and fixing the sample placed on the impact seat 42. At this time, the lower end of the impact head 8 abuts against the sample, completing the sample fixing process.

[0039] After the sample is fixed, according to the determined test position, the operator slides the positioning ring 9 along the cylinder 31 of the guide cylinder 3 to the specified height and fixes it. The scales 81 fixed on both sides of the impact head 8 are located in the embedded grooves 311 on the observation window 33. The positioning ring 9 and the scales 81 cooperate with each other to clearly and accurately determine the distance between the impact hammer 7 and the impact head 8, preparing for the subsequent impact test.

[0040] Once the test location is determined, the vertical impact test can be conducted. The operator pulls the impact hammer 7 using handle 71, causing it to rise along the moving groove 32 on the cylinder 31 to the designated height. Then, the operator releases handle 71, allowing the impact hammer 7 to fall freely. Under the influence of gravity, the impact hammer 7 accelerates downwards and collides with the impact head 8, transferring its kinetic energy to the impact head 8. After being impacted by the impact hammer 7, the impact head 8 strikes the sample below, simulating the vertical impact that the anti-slip coating might experience during actual use.

[0041] When a tilt test is required to more comprehensively evaluate the performance of the anti-slip coating, the operator rotates the lead screw 51. Since the lead screw 51 is threadedly connected to the threaded sleeve 52, rotating the lead screw 51 changes the position of the threaded sleeve 52 on the lead screw 51. The threaded sleeve 52 is rotatably positioned in the clearance groove 212 of the mounting arm 21, so the rotation of the lead screw 51 drives the mounting arm 21 to rotate around the horizontal axis 211, thereby causing the guide cylinder 3 to deflect along with the mounting arm 21, changing the impact direction. During the rotation of the mounting arm 21, the toothed protrusion 22 on its semi-circular end structure also rotates. The toothed protrusion 22 meshes with the rack 41 on the sliding seat 4. The rotation of the toothed protrusion 22 drives the rack 41 to move, thereby causing the sliding seat 4 to drive the impact seat 42 to move in the sliding groove 11 of the base 1. At the same time, the crossbar 541 slides in the arc-shaped groove 631 of the connecting plate 63 to accommodate the rotation of the mounting arm 21 and not interfere with the fixation of the sample by the H-shaped frame 61. After the guide cylinder 3 deflects, the impact head 8 will move down under the action of gravity until it comes into contact with the sample again. At this time, the scale 81 moves synchronously with the impact head 8 and, together with the forward-moving sliding seat 4, realizes the tilt detection of the sample. During the tilt detection process, the impact hammer 7 also pulls down and impacts the impact head 8, so that the impact head 8 hits the sample in the tilt direction, thereby completing the tilt test and obtaining the performance data of the anti-slip coating under tilt impact.

[0042] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. An impact testing machine for an anti-slip coating, comprising a base (1) and a guide cylinder (3), wherein an impact hammer (7) and an impact head (8) are slidably disposed within the guide cylinder (3), characterized in that: A mounting bracket (2) is rotatably mounted on the base (1). The guide cylinder (3) is connected to the base (1) through the mounting bracket (2). The mounting bracket (2) includes a mounting arm (21), and a horizontal shaft (211) and a toothed protrusion (22) are provided on the mounting arm (21). It also includes: A sliding seat (4) is slidably disposed on a base (1). A rack (41) is fixedly disposed on the sliding seat (4). The rack (41) meshes with a toothed protrusion (22). An impact seat (42) is disposed on the sliding seat (4). Adjustment mechanism (5), the adjustment mechanism (5) includes a lead screw (51) and a threaded sleeve (52) threadedly connected to the lead screw (51). The threaded sleeve (52) is rotatably mounted on the mounting arm (21). A tensioning mechanism (53) is provided at the lower end of the lead screw (51). The tensioning mechanism (53) is rotatably mounted on the base (1). The pressing mechanism (6) includes an H-shaped frame (61), which is rotatably mounted on a horizontal shaft (211), and a connecting plate (63) is slidably mounted on the H-shaped frame (61). A handwheel (511) is fixedly provided at the upper end of the lead screw (51), and a rotating ring (54) is rotatably provided on the lead screw (51). A crossbar (541) is fixedly provided on both sides of the rotating ring (54). The tensioning mechanism (53) includes a spline (531), which is mounted on a lead screw (51). A hinge seat (533) is rotatably mounted on the base (1), and a spline sleeve (532) is rotatably mounted on the hinge seat (533). The spline sleeve (532) is connected to the lead screw (51) via the spline (531). A spring (535) is provided inside the spline sleeve (532), and the two ends of the spring (535) are respectively connected to the lead screw (51) and the spline sleeve (532). A limiting ring (534) is fixedly mounted on the lead screw (51), and the limiting ring (534) movably abuts against the spline sleeve (532). The inner surface of the H-shaped frame (61) is provided with a guide strip (611), and a sliding frame (62) is slidably provided on the guide strip (611). A guide groove (621) is provided on the sliding frame (62), and the guide groove (621) is sleeved on the guide strip (611). The connecting plate (63) is fixedly provided on the sliding frame (62), and an arc groove (631) is provided on the connecting plate (63). The crossbar (541) is slidably provided in the arc groove (631). A torsion spring (64) is sleeved on the horizontal shaft (211), and the two ends of the torsion spring (64) are respectively connected to the H-shaped frame (61) and the base (1).

2. The impact testing machine for an anti-slip coating according to claim 1, characterized in that: The mounting arm (21) is rotatably mounted on the base (1) via a horizontal shaft (211). A clearance groove (212) is provided on the mounting arm (21). The threaded sleeve (52) is rotatably mounted in the clearance groove (212). The end of the mounting arm (21) is set as a semi-circular structure, and the tooth protrusion (22) array is provided on the semi-circular end.

3. The impact testing machine for an anti-slip coating according to claim 1, characterized in that: The base (1) is provided with a groove (11), and the sliding seat (4) is slidably disposed in the groove (11).

4. The impact testing machine for an anti-slip coating according to claim 1, characterized in that: The guide cylinder (3) includes a cylinder body (31), a moving groove (32) is provided on the cylinder body (31), observation windows (33) are provided on both sides of the cylinder body (31), an embedding groove (311) is provided on the observation window (33), and a positioning ring (9) is slidably sleeved on the cylinder body (31).

5. The impact testing machine for an anti-slip coating according to claim 4, characterized in that: The impact head (8) is fixedly provided with scales (81) on both sides, and the scales (81) are slidably disposed in the embedded groove (311).

6. The impact testing machine for an anti-slip coating according to claim 4, characterized in that: A handle (71) is fixedly provided on the impact hammer (7), and the handle (71) is slidably disposed in the moving groove (32).

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