A ball mode wear resistance testing device with adjustable friction point

Abstract

The utility model relates to ball mould wear resistance test technical field, and disclose a kind of ball mould wear resistance test device of adjustable friction point, including rack, ball head measured piece and counterweight weight;The top of rack is fixedly connected with multiple guide rods, the surface of guide rod is slidably connected with rotating platform, the both sides of rotating platform are symmetrically provided with sliding slot, the inner chamber of sliding slot is slidably matched with sliding rod, and one end of sliding rod is threadedly connected with locking knob, the surface of sliding rod is fixedly connected with connecting plate, and the end of connecting plate is equipped with recessed plate;Sliding rod is along the arc of sliding slot Sliding, cooperate locking knob locking, realize the friction point adjustment of recessed plate relative to ball head measured piece, through the arc adjustment structure of semicircular sliding slot and sliding rod, angle scale and alignment mark are combined, the angle adjustment of recessed plate can be realized, make friction point along ball head measured piece spherical surface dynamic change, cover the multiple friction angles that can appear in actual working condition.

Description

Technical Field

[0001] This utility model relates to the field of ball mold wear resistance testing technology, specifically a ball mold wear resistance testing device with adjustable friction points. Background Technology

[0002] A ball mold abrasion resistance testing device is a testing instrument used to evaluate the abrasion resistance of materials or coatings. This equipment is typically used to analyze the wear of materials under repeated contact and friction with a ball or other hard object. Under specific conditions, this type of testing device simulates wear conditions in real-world applications by controlling parameters such as loading force, test time, and sample loading method, thereby testing the abrasion resistance of the material or coating.

[0003] Currently, in the wear resistance test of ball molds and ball head test pieces, the position of the friction surface (groove) of the ball mold is fixed, resulting in a single friction point for each test. This makes it impossible to simulate the friction and wear conditions at different angles in actual working conditions, resulting in insufficient test data and difficulty in accurately evaluating the wear resistance performance of the ball mold.

[0004] In view of this, the present invention solves the above-mentioned technical problems by proposing a ball mold wear resistance testing device with adjustable friction points. Utility Model Content

[0005] To address the shortcomings of the aforementioned background technology, this utility model provides a technical solution for a ball mold wear resistance testing device with adjustable friction points. Firstly, through the semi-circular sliding groove and the arc-shaped adjustment structure of the sliding rod, combined with angle scales and alignment marks, the angle of the groove plate can be adjusted, allowing the friction point to dynamically change along the spherical surface of the ball head test piece. This covers various friction angles that may occur in actual working conditions, solving the defects of "single test point and incomplete working condition coverage," significantly improving the comprehensiveness and scenario adaptability of test data. Secondly, the detachable bolt connection design of the groove plate and the connecting plate supports quick replacement of groove plates with different curvatures and materials. This allows for adaptation to the testing needs of ball head test pieces of various specifications without replacing the entire device, reducing equipment investment costs. Finally, the radial opening design of the sliding groove facilitates quick installation and removal of the sliding rod, the damping rotation shaft of the dust cover and the anti-slip handle enable rapid opening and closing of the test area, and the threaded connection structure of the limiting block facilitates the disassembly and maintenance of the rotary table. The overall operation process is simplified, improving testing efficiency.

[0006] This utility model provides the following technical solution: a ball mold wear resistance testing device with adjustable friction points, including a frame, a ball head to be tested, and counterweights;

[0007] The top of the frame is fixedly connected to multiple guide rods, and a rotating platform is slidably sleeved on the surface of the guide rods. Sliding grooves are symmetrically opened on both sides of the rotating platform. A sliding rod is slidably fitted inside the sliding groove. A locking knob is threaded to one end of the sliding rod. A connecting plate is fixedly connected to the surface of the sliding rod. A grooved plate is provided at the end of the connecting plate.

[0008] The sliding rod slides along the arc of the sliding groove and is locked in place with the locking knob, thereby adjusting the friction point position of the groove plate relative to the ball-shaped test piece.

[0009] As a preferred technical solution of this utility model, one end of the guide rod is threadedly connected to a limit block, the sliding groove has an opening in the radial direction of the rotary table, and the groove plate is fixedly connected to the connecting plate by bolts.

[0010] As a preferred embodiment of this utility model, a servo motor is fixedly connected to the top of the frame via a bracket, and the inner cavity of the ball-head test piece is threadedly connected to the surface of the output shaft of the servo motor.

[0011] As a preferred embodiment of this utility model, the counterweight is located above the rotating platform, and the sliding groove is semi-circular with its center coaxial with the rotation center of the ball-shaped test piece.

[0012] As a preferred technical solution of this utility model, the surface of the ball-head test piece is adapted to the inner curved surface of the groove plate.

[0013] As a preferred technical solution of this utility model, a dust collection box is provided on the top of the frame below the ball head test piece, and a dust cover is hinged to the top of the frame through a damping rotation shaft, and an anti-slip handle is fixedly connected to the outer surface.

[0014] As a preferred embodiment of this utility model, the inner wall of the sliding groove is engraved with angle scales, and the surface of the sliding rod is provided with alignment marks.

[0015] As a preferred embodiment of this utility model, a spring washer is provided between the locking knob and the rotating table.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This device, through the semi-circular sliding groove and the arc-shaped adjustment structure of the sliding rod, combined with the angle scale and alignment mark, can realize the angle adjustment of the groove plate, so that the friction point changes dynamically along the spherical surface of the ball head test piece, covering a variety of friction angles that may occur in actual working conditions. It solves the defects of "single test point and incomplete working condition coverage", and significantly improves the comprehensiveness of test data and the adaptability of scenarios.

[0018] 2. The detachable bolt connection design of the groove plate and the connecting plate of this utility model supports the quick replacement of groove plates with different curvatures and materials. It can adapt to the testing needs of ball head test pieces of various specifications without replacing the entire set of equipment, thus reducing the equipment investment cost.

[0019] 3. The radial opening design of the sliding groove of this utility model facilitates the quick installation and removal of the sliding rod. The damping rotation shaft of the dust cover and the anti-slip handle enable the rapid opening and closing of the test area. The threaded connection structure of the limit block facilitates the disassembly and maintenance of the rotary table. The overall operation process is simplified and the testing efficiency is improved. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a cross-sectional view of the present invention;

[0022] Figure 3 This is a partially enlarged view of the present invention;

[0023] Figure 4 This is an exploded view of the present invention;

[0024] Figure 5 This is a schematic diagram of the locking knob structure of this utility model.

[0025] In the diagram: 1. Frame; 101. Ball head to be tested; 102. Counterweight; 2. Guide rod; 201. Rotary table; 202. Sliding groove; 203. Sliding rod; 204. Locking knob; 205. Connecting plate; 206. Groove plate; 3. Limit block; 4. Servo motor; 5. Dust collection box; 501. Dust cover; 502. Anti-slip handle. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5 As shown, a ball mold wear resistance testing device with adjustable friction points includes a frame 1, a ball head to be tested 101, and a counterweight 102.

[0028] Multiple guide rods 2 are fixedly connected to the top of the frame 1. A rotating table 201 is slidably sleeved on the surface of the guide rod 2. Sliding grooves 202 are symmetrically opened on both sides of the rotating table 201. A sliding rod 203 is slidably fitted in the inner cavity of the sliding groove 202. A locking knob 204 is threaded to one end of the sliding rod 203. A connecting plate 205 is fixedly connected to the surface of the sliding rod 203. A grooved plate 206 is provided at the end of the connecting plate 205.

[0029] The sliding rod 203 slides along the arc of the sliding groove 202 and is locked in place with the locking knob 204, thereby adjusting the friction point position of the groove plate 206 relative to the ball head test piece 101.

[0030] One end of the guide rod 2 is threadedly connected to the limit block 3 to limit the sliding stroke of the rotary table 201; the sliding groove 202 has an opening in the radial direction of the rotary table 201 for the sliding rod 203 to be inserted; the groove plate 206 is fixedly connected to the connecting plate 205 by bolts, which facilitates the replacement of groove plates 206 with different curvatures.

[0031] The top of the frame 1 is fixedly connected to the servo motor 4 via a bracket, and the inner cavity of the ball-head test piece 101 is threadedly connected to the surface of the output shaft of the servo motor 4.

[0032] Servo motor 4 is used to drive the ball head test piece 101 to rotate at high speed;

[0033] The counterweight 102 is located above the rotary table 201 and is used to apply a constant test pressure to the groove plate 206; the sliding groove 202 is semi-circular, and its center is coaxial with the rotation center of the ball-head test piece 101 to ensure the symmetry of the angle adjustment.

[0034] The surface of the ball-head test piece 101 is adapted to the inner curved surface of the groove plate 206 to ensure the fit of the frictional contact.

[0035] A dust collection box 5 is provided on the top of the frame 1 below the ball head test piece 101. A dust cover 501 is hinged to the top of the frame 1 through a damping rotation shaft, and an anti-slip handle 502 is fixedly connected to the outer surface.

[0036] Angle graduations are engraved on the inner wall of the sliding groove 202, and alignment marks are provided on the surface of the sliding rod 203;

[0037] Angle scales and alignment marks are used for visual adjustment of the angle of groove plate 206;

[0038] A spring washer is placed between the locking knob 204 and the rotary table 201;

[0039] Spring washers are used to prevent locking failure due to vibration during testing.

[0040] Friction point adjustment mechanism (core innovation)

[0041] Trajectory Design:

[0042] The semi-circular sliding grooves 202 on both sides of the rotary table 201 are opened with the rotation center of the ball-head test piece 101 as the center, providing an arc-shaped adjustment trajectory for the sliding rod 203, ensuring that the adjustment of the groove plate 206 changes symmetrically around the center of the ball-head test piece 101.

[0043] Visual adjustment:

[0044] Angle scales are engraved on the inner wall of the sliding groove 202, and alignment marks are set on the surface of the sliding rod 203. Operators can align the marks with the scales to accurately set the tilt angle of the groove plate 206 (such as ±5°~±45°) and achieve quantitative adjustment of the friction point.

[0045] When the locking knob 204 is loosened, the sliding rod 203 slides along the arc groove, causing the connecting plate 205 and the groove plate 206 to deflect synchronously; when the locking knob 204 is tightened, the spring washer is compressed and deformed to offset the test vibration, prevent locking failure, and ensure angular stability.

[0046] Quick-change expansion:

[0047] The groove plate 206 is detachably connected to the connecting plate 205 by bolts, supporting quick replacement of groove plates 206 with different curvatures / materials, and adapting to the testing needs of ball head test pieces 101 of various specifications.

[0048] Abrasion resistance test execution procedure

[0049] Power and load configuration:

[0050] Drive end: The output shaft of servo motor 4 is threadedly connected to the ball head test piece 101, driving the ball head test piece 101 to rotate at high speed (simulating the motion rate under actual working conditions).

[0051] Load end: The counterweight 102 is pressed on the top of the rotary table 201. Through the sliding sleeve characteristics of the rotary table 201, the gravity is converted into a constant positive pressure of the groove plate 206 on the ball head, simulating the contact load during actual service.

[0052] Friction and Environmental Control:

[0053] Contact friction: The spherical surface of the ball head test piece 101 is fitted and conforms to the inner curved surface of the groove plate 206. When the two rotate relative to each other, sliding friction is generated to simulate the wear process of the ball mold.

[0054] Protection closed loop:

[0055] The dust cover 501 closes via a damping rotating shaft, forming a sealed space to prevent dust from spilling out.

[0056] The debris generated by friction falls to the dust collection box 5 below by gravity, and the non-slip handle 502 facilitates quick opening and closing for observation during the test.

[0057] Stroke limit: The limit block 3 at the top of the guide rod 2 limits the sliding stroke of the rotary table 201 to prevent the structure from detaching from the guide rod due to excessive load, thus ensuring test safety. At the same time, when the rotary table 201 is not in use, the limit block 3 can be unscrewed to disassemble the rotary table 201.

[0058] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Additionally, in the accompanying drawings of this utility model, the fill patterns are merely for distinguishing layers and do not constitute any other limitation.

[0059] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A ball mold wear resistance testing device with adjustable friction point position, comprising: The frame (1), the ball head to be tested (101), and the counterweight (102) are all included. The features are as follows: a plurality of guide rods (2) are fixedly connected to the top of the frame (1), a rotating table (201) is slidably sleeved on the surface of the guide rods (2), sliding grooves (202) are symmetrically opened on both sides of the rotating table (201), a sliding rod (203) is slidably fitted in the inner cavity of the sliding groove (202), a locking knob (204) is threaded to one end of the sliding rod (203), a connecting plate (205) is fixedly connected to the surface of the sliding rod (203), and a groove plate (206) is provided at the end of the connecting plate (205); The sliding rod (203) slides along the arc of the sliding groove (202) and is locked in place with the locking knob (204) to realize the adjustment of the friction point of the groove plate (206) relative to the ball head test piece (101).

2. The ball mold wear resistance testing device with adjustable friction point position according to claim 1, characterized in that: One end of the guide rod (2) is threadedly connected to a limit block (3), the sliding groove (202) has an opening in the radial direction along the rotary table (201), and the groove plate (206) is fixedly connected to the connecting plate (205) by bolts.

3. The ball mold wear resistance testing device with adjustable friction point position according to claim 1, characterized in that: The top of the frame (1) is fixedly connected to a servo motor (4) via a bracket, and the inner cavity of the ball-head test piece (101) is threadedly connected to the surface of the output shaft of the servo motor (4).

4. The ball mold wear resistance testing device with adjustable friction point position according to claim 1, characterized in that: The counterweight (102) is located above the rotating platform (201), and the sliding groove (202) is semi-circular with its center coaxial with the rotation center of the ball-head test piece (101).

5. The ball mold wear resistance testing device with adjustable friction point position according to claim 1, characterized in that: The surface of the ball-shaped test piece (101) is adapted to the inner curved surface of the groove plate (206).

6. The ball mold wear resistance testing device with adjustable friction point position according to claim 1, characterized in that: A dust collection box (5) is provided on the top of the frame (1) below the ball head test piece (101). A dust cover (501) is hinged to the top of the frame (1) through a damping rotation shaft, and an anti-slip handle (502) is fixedly connected to the outer surface.

7. The ball mold wear resistance testing device with adjustable friction point position according to claim 1, characterized in that: The inner wall of the sliding groove (202) is engraved with angle scales, and the surface of the sliding rod (203) is provided with alignment marks.

8. The ball mold wear resistance testing device with adjustable friction point position according to claim 1, characterized in that: A spring washer is placed between the locking knob (204) and the rotating table (201).

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