A wear-resistant metal abrasion testing device and method

Abstract

The present application relates to a kind of abrasion-resistant metal abrasion testing device and test method, it relates to abrasion-resistant metal production technical field, including the polishing platform of horizontal arrangement, be set to the polishing platform upper end and two arc-shaped movement slide rails of mutual parallel, respectively along two the reciprocating sliding of the arc-shaped movement slide rail extension direction metal casting mounting seat, be connected to the polishing platform upper end and be assembled with the two half polishing cover of the arc-shaped movement slide rail opposite rotation and assemble cover, and be set to the arc-shaped abrasion testing block of the polishing cover inner wall and be polished to metal casting, two the arc-shaped movement slide rail section perpendicular to extension direction is circular, the axis of two the arc-shaped movement slide rail is horizontal, the metal casting mounting seat sliding is sleeved on the arc-shaped movement slide rail, metal casting is fixed between two the metal casting mounting seat.It has beneficial effect to make metal casting abrasion-resistant test more convenient.

Description

Technical Field

[0001] This invention relates to the field of wear-resistant metal production technology, and in particular to a wear-resistant metal wear testing device and testing method. Background Technology

[0002] Wear-resistant alloys are alloys developed to improve the wear resistance of mechanical equipment and are the most commonly used alloys for certain typical friction pairs. They have a wide range of applications, including various tool steels, bearing steels, as well as high-manganese steel and various types of wear-resistant cast iron used in rock drilling and crushing machinery.

[0003] Wear-resistant alloy steel is used in abrasive wear conditions with certain impact loads. It refers to steel with other elements added purposefully to meet specific performance requirements. Elements added to improve hardness, toughness, hardenability, and other comprehensive performance indicators are called alloying elements. Examples of alloying elements include chromium (Cr), nickel (Ni), molybdenum (Mo), copper (Cu), silicon (Si), manganese (Mn), vanadium (V), titanium (Ti), rare earth elements (Re), tungsten (W), and boron (B). Even some harmful elements, such as sulfur (S) and phosphorus (P), can be called alloying elements under specific environmental conditions to meet special requirements. Wear-resistant alloy steel is broadly classified into five categories: austenitic manganese steel, medium chromium steel, low alloy steel, and graphite steel, each suitable for different working conditions.

[0004] After obtaining wear-resistant metal castings through casting, wear tests need to be conducted on the metal castings to test their wear resistance characteristics. Manual wear testing is not only inconsistent with actual applications, making the test results inaccurate, but also very inconvenient. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a wear-resistant metal wear testing device and testing method, which solves the technical problem of inconvenient testing of wear-resistant metal casting wear characteristics.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the main technical solutions adopted by the present invention include:

[0009] In a first aspect, embodiments of the present invention provide a wear-resistant metal wear testing device, comprising a horizontally arranged grinding platform, two parallel arc-shaped sliding rails disposed on the upper end of the grinding platform, metal casting mounting seats that reciprocate along the extension directions of the two arc-shaped sliding rails, two halves of a grinding cover rotatably connected to the upper end of the grinding platform and assembled to cover the arc-shaped sliding rails, and an arc-shaped wear test block disposed on the inner wall of the grinding cover for grinding the metal casting. The cross-section of the two arc-shaped sliding rails perpendicular to the extension direction is circular, and the axes of the two arc-shaped sliding rails are horizontal. The metal casting mounting seats are slidably fitted onto the arc-shaped sliding rails, and the metal casting is fixed between the two metal casting mounting seats.

[0010] This invention provides a wear-resistant metal wear testing device. After the production of a metal casting is completed, a metal casting is selected for wear testing. The metal casting is fixed between two metal casting mounting seats, and then the two halves of the grinding cover are rotated and closed, so that the two halves of the grinding cover completely cover the arc-shaped moving slide rail. Then, the two metal casting mounting seats drive the metal casting to move back and forth rapidly along the length of the arc-shaped moving slide rail. During the movement, the metal casting will rub against the arc-shaped wear test block on the inner wall of the grinding cover. The test is conducted continuously for a certain period of time. After the test, the metal casting is removed, and the wear resistance of the metal casting is obtained based on the wear condition. This solution makes wear resistance testing of metal castings more convenient.

[0011] Optionally, the two arc-shaped sliding rails are coaxial, and two drive motors are provided on the upper surface of the grinding platform corresponding to the two arc-shaped sliding rails. A connecting rod is vertically provided on the output shaft of the drive motor, and the other end of the connecting rod drives the metal casting mounting base to reciprocate along the arc-shaped sliding rails.

[0012] The drive motor on the grinding platform drives the linkage rod to rotate, which in turn drives the metal casting mounting base to move back and forth along the arc-shaped sliding rail, making the movement of the metal casting mounting base faster and thus improving the testing efficiency of the metal wear testing device.

[0013] Optionally, the metal casting mounting base has an arc-shaped sliding hole in the middle, and a traveling steel ball is rolled and embedded inside the sliding hole.

[0014] By opening a sliding hole in the middle of the metal casting mounting base and rolling steel balls embedded in the inner wall of the sliding hole, the relative movement between the metal casting mounting base and the arc-shaped moving slide rail is made by rolling friction. On the one hand, this can increase the moving speed of the metal casting mounting base, making the testing efficiency of the metal wear testing device higher, and on the other hand, it can increase the service life of the metal wear testing device.

[0015] Optionally, the output shafts of the two drive motors are horizontal and inclined to the axis of the arc-shaped sliding rail. A lever is horizontally arranged at the ends of the two metal casting mounting seats that are far apart from each other. The lever is parallel to the axis of the arc-shaped sliding rail. The output shafts of the two drive motors rotate in opposite directions. The two connecting rods abut against the sides of the two levers that are far apart from each other and push the metal casting mounting seats to move. As the levers rotate, they move relative to each other along the length of the levers away from the metal casting mounting seats. The upper surface of the grinding platform has a through hole on the outer side of the two arc-shaped sliding rails for the connecting rods to rotate through.

[0016] The reciprocating movement of the metal casting mounting base is directly controlled by a drive motor. The drive motor rotates back and forth during operation, and decelerates when it reaches its limit in one direction, resulting in a low moving speed for the metal casting mounting base. In this design, a lever is installed on the side of the metal casting mounting base, and the output shaft of the drive motor is inclined to the axis of the arc-shaped sliding rail. When the drive motor operates, it drives a connecting rod to rotate, causing the connecting rod to contact the lever and rotate. Simultaneously, the connecting rod, while moving the lever, also interacts with the lever. When the linkage moves relative to the actuating rod, it will move away from the metal casting mounting base until it disengages from the actuating rod. At this point, the linkage will directly rotate and insert into the through hole. Simultaneously, the two drive motors drive the linkage to rotate in opposite directions, so that when one linkage disengages from the actuating rod, the other linkage will contact the actuating rod and drive the metal casting mounting base to move in the opposite direction. The two drive motors work together to make the metal casting mounting base with the metal casting installed move back and forth quickly at a relatively fast speed, thereby improving the testing efficiency of the metal wear testing device.

[0017] Optionally, a buffer groove is provided on one side of the actuating rod that abuts against the connecting rod. The buffer groove is elongated along the length of the actuating rod. A buffer spring is vertically embedded in the buffer groove. A ball seat is provided at the end of the buffer spring away from the bottom of the buffer groove. A ball bearing protruding from the buffer groove is rolled and embedded at the end of the ball seat away from the buffer spring.

[0018] By creating a buffer groove on the side of the actuating lever and installing a buffer spring, ball seat, and ball bearing, when the connecting rod contacts the actuating lever, the connecting rod will abut against the ball bearing and compress the buffer spring. Subsequently, it will move relative to the actuating lever along its length, changing the sliding friction between the connecting rod and the actuating lever into rolling friction. At the same time, the buffer spring will buffer the contact between the actuating lever and the connecting rod, thereby extending the service life of the testing device.

[0019] Optionally, both ends of the arc-shaped sliding rail are coaxially fitted with compression springs.

[0020] By coaxially sleeved compression springs at both ends of the arc-shaped sliding rail, when the metal casting mounting seat moves rapidly to one side, it will contact the compression spring. At this time, the metal casting mounting seat will decelerate rapidly, and its kinetic energy will be converted into the potential energy of the compression spring. When the metal casting mounting seat stops moving, the potential energy of the compression spring will be converted back into the kinetic energy of the metal casting. At this moment, the connecting rod will contact the actuating rod, thereby accelerating the metal casting mounting seat. On the one hand, this allows the metal casting mounting seat to move back and forth at a faster speed, thereby improving the detection efficiency. On the other hand, it reduces the probability of violent collisions between the connecting rod and the actuating rod, thus increasing the service life of the metal wear testing device.

[0021] Optionally, the inner walls of the two halves of the grinding cover are provided with grinding mounting seats. The arc-shaped wear test block is detachably connected to the grinding mounting seats. Multiple insertion slots are opened on the end faces of the two grinding mounting seats that are close to each other. The multiple insertion slots are arranged along the length direction of the grinding mounting seats. An adjusting spring is coaxially inserted into the insertion slot. Multiple insertion rods are provided on the arc-shaped wear test block and inserted into the insertion slots. The end of the insertion rod away from the arc-shaped wear test block abuts against the end of the adjusting spring away from the bottom of the insertion slot.

[0022] By setting grinding mounting seats on the inner walls of the two halves of the grinding cover, the arc-shaped wear test block can be detachably connected to the grinding mounting seats. This allows for replacement of the arc-shaped wear test block according to its usage, ensuring high accuracy in metal wear testing. The arc-shaped wear test block is detachably connected to the grinding mounting seats by inserting it into the insertion slot via an insertion rod. Simultaneously, one end of the adjusting spring abuts against the bottom of the insertion slot, and the other end abuts against the insertion rod, allowing for a certain degree of relative movement between the arc-shaped wear test block and the grinding mounting seats. This ensures that when the metal casting mounting seat drives the metal casting to move back and forth rapidly, the friction generated between the metal casting and the arc-shaped wear test block is not a rigid collision, but rather becomes friction with a certain pressure under the action of the adjusting spring, thus ensuring the safety of the test.

[0023] Optionally, a wear groove is formed between the two arc-shaped wear test blocks for the metal casting to slide through, and the two ends of the wear groove are flared.

[0024] By setting the two ends of the wear groove to be flared, when the metal casting mounting base drives the metal casting to move back and forth quickly, the metal casting will be inserted along the flared opening at one end of the wear groove, thus avoiding violent collision with the arc-shaped wear test block and ensuring the safety of the test.

[0025] Optionally, the grinding mounting base includes a base seat sleeved on the arc-shaped moving slide rail and a rotating seat rotatably connected to one end of the base seat. The two ends of the metal casting are detachably connected to the two rotating seats respectively. The grinding platform is coaxially provided with an arc-shaped rack on the inner side of the arc-shaped moving slide rail, and the peripheral end of the rotating seat is provided with a gear meshing with the arc-shaped rack.

[0026] When the base moves rapidly along the arc-shaped sliding rail under the drive of the motor, the gear on the side of the rotating seat meshes with the arc-shaped rack, causing the rotating seat to rotate while moving. The direction of rotation is towards its own moving direction, allowing the metal casting installed between the two rotating seats to rotate rapidly and come into contact with the arc-shaped wear test block, thereby improving the efficiency of the wear test.

[0027] Secondly, embodiments of the present invention provide a method for testing the wear resistance of metal, comprising: Step 1, rotating and opening the two halves of the grinding cover, fixing the metal casting in the metal casting mounting base, and then rotating and fastening the two halves of the grinding cover; Step 2, rapidly reciprocating the metal casting mounting base along the extension direction of the arc-shaped sliding rail, during which the metal casting rubs against the arc-shaped wear test blocks on both sides; Step 3, after a certain period of time, stopping the movement of the metal casting mounting base, rotating and opening the two halves of the grinding cover and removing the metal casting, and obtaining the wear resistance performance of the wear-resistant metal casting by observation or other instruments.

[0028] This method allows for the determination of the wear resistance of metal castings, making wear resistance testing of metal castings more convenient.

[0029] (III) Beneficial Effects

[0030] The beneficial effects of this invention are as follows: The wear-resistant metal wear testing device and method of this invention, after the production of a metal casting is completed, takes one metal casting for wear testing. The metal casting is fixed between two metal casting mounting seats, and then the two halves of the grinding cover are rotated and closed, so that the two halves of the grinding cover completely cover the arc-shaped moving slide rail. Then, the two metal casting mounting seats drive the metal casting to move rapidly back and forth along the length of the arc-shaped moving slide rail. During the movement, the metal casting will rub against the arc-shaped wear test block on the inner wall of the grinding cover. The test is conducted continuously for a certain period of time. After the test, the metal casting is removed, and the wear resistance of the metal casting is obtained based on the wear condition. This solution makes wear resistance testing of metal castings more convenient. Attached Figure Description

[0031] Figure 1 This is a cross-sectional view of an embodiment of the present invention;

[0032] Figure 2 This is an exploded view diagram of an embodiment of the present invention;

[0033] Figure 3 This is a partial explosion diagram of an embodiment of the present invention;

[0034] Figure 4 for Figure 3 Enlarged view of point A.

[0035] [Explanation of Labels in the Attached Image]

[0036] 1. Grinding platform; 11. Drive motor; 12. Linkage rod; 13. Through hole; 14. Arc-shaped rack; 2. Arc-shaped sliding rail; 21. Compression spring; 3. Metal casting mounting base; 31. Base base; 311. Sliding hole; 312. Traveling steel ball; 313. Actuating rod; 3131. Buffer groove; 3132. Buffer spring; 3133. Ball seat; 3134. Ball bearing; 32. Rotating seat; 321. Gear; 322. Connecting column; 323. Connecting plate; 324. Adjusting screw; 325. Clamping plate; 4. Grinding cover; 41. Grinding mounting base; 411. Insertion groove; 412. Adjusting spring; 5. Arc-shaped wear test block; 51. Insertion rod; 52. Wear groove. Detailed Implementation

[0037] To better explain and facilitate understanding of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] The wear-resistant metal wear testing device and method proposed in this invention involves taking a metal casting for wear testing after the metal casting production is completed. The metal casting is fixed between two metal casting mounting seats, and then the two halves of the grinding cover are rotated and closed, so that the two halves of the grinding cover completely cover the arc-shaped moving slide rail. Then, the two metal casting mounting seats drive the metal casting to move back and forth quickly along the length of the arc-shaped moving slide rail. During the movement, the metal casting will rub against the arc-shaped wear test block on the inner wall of the grinding cover. The test is conducted continuously for a certain period of time. After the test, the metal casting is removed, and the wear resistance of the metal casting is obtained based on the wear condition. This scheme makes the wear resistance testing of metal castings more convenient.

[0039] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.

[0040] Reference Figure 1 and Figure 2A wear-resistant metal wear testing device includes a horizontally arranged grinding platform 1, two parallel arc-shaped sliding rails 2 welded to the upper end of the grinding platform 1, a metal casting mounting base 3 that slides back and forth along the length of the two arc-shaped sliding rails 2, two grinding covers 4 rotatably connected to the upper end of the grinding platform 1 via rotating shafts and assembled to cover the arc-shaped sliding rails 2, and an arc-shaped wear test block 5 disposed on the inner wall of the grinding covers 4 for grinding the metal casting.

[0041] The cross-sections of the two arc-shaped sliding rails 2 perpendicular to their own length direction are circular, and the axes of the two arc-shaped sliding rails 2 are horizontal.

[0042] See Figure 2 , Figure 3 and Figure 4 The metal casting mounting base 3 includes a base 31 fitted on an arc-shaped sliding rail 2 and a rotating base 32 rotatably connected to one end of the base 31 via a rotating shaft. An arc-shaped sliding hole 311 is provided in the middle of the base 31. The base 31 is slidably fitted onto the arc-shaped sliding rail 2 through the sliding hole 311. A traveling steel ball 312 is rolled and embedded in the inner wall of the sliding hole 311 of the base 31, so that the metal casting mounting base 3 can move more smoothly along the arc-shaped sliding rail 2.

[0043] A drive motor 11 is bolted to the upper end of the grinding platform 1 at the axis of the two arc-shaped sliding rails 2. A connecting rod 12 is vertically welded to the output shaft of the drive motor 11. The output shafts of the two drive motors 11 are horizontal and inclined to the axis of the arc-shaped sliding rails 2. A lever 313 is horizontally welded to the ends of the two bases 31 that are far apart from each other. The lever 313 is parallel to the axis of the arc-shaped sliding rails 2. The output shafts of the two drive motors 11 rotate in opposite directions. The two connecting rods 12 abut against the two levers 313 on the opposite sides and push the metal casting mounting base 3 to move. As the connecting rods 12 rotate, they move relative to each other along the length of the levers 313 to the side away from the metal casting mounting base 3. A through hole 13 is opened on the outer side of the two arc-shaped sliding rails 2 on the upper end of the grinding platform 1 for the connecting rods 12 to rotate through. When the drive motor 11 is working, it drives the connecting rod 12 to rotate, causing the connecting rod 12 to contact the actuating rod 313 and drive the actuating rod 313 to rotate. At the same time, while driving the actuating rod 313 to move, the connecting rod 12 will also move relative to the actuating rod 313. The connecting rod 12 will move away from the metal casting mounting base 3 relative to the actuating rod 313 until it disengages from the actuating rod 313. At this time, the connecting rod 12 will directly rotate and insert into the through hole 13. Meanwhile, the two drive motors 11 drive the connecting rods 12 to rotate in opposite directions, so that when one connecting rod 12 disengages from the actuating rod 313, the other connecting rod 12 will contact the actuating rod 313 and drive the metal casting mounting base 3 to move in the opposite direction. When the two drive motors 11 work together, the metal casting mounting base 3 with the metal casting installed will move back and forth quickly at a relatively fast speed.

[0044] A buffer groove 3131 is provided on one side of the actuating rod 313 that abuts against the connecting rod 12. The buffer groove 3131 is elongated along the length of the actuating rod 313. A buffer spring 3132 is vertically welded inside the buffer groove 3131. A ball seat 3133 is welded to the end of the buffer spring away from the bottom of the buffer groove 3131. A ball bearing 3134 protruding from the buffer groove 3131 is rolled and embedded at the end of the ball seat 3133 away from the buffer spring 3132. When the connecting rod 12 contacts the actuating rod 313, the connecting rod 12 will abut against the ball bearing 3134 and compress the buffer spring 3132. Then, it will move relative to the actuating rod 313 along its length, changing the sliding friction between the connecting rod 12 and the actuating rod 313 into rolling friction. At the same time, the buffer spring 3132 buffers the contact between the actuating rod 313 and the connecting rod 12, thereby extending the service life of the testing device.

[0045] Both ends of the arc-shaped sliding rail 2 are coaxially fitted with compression springs 21. When the metal casting mounting seat 3 moves rapidly to one side, it will contact the compression springs 21, causing it to decelerate rapidly. The kinetic energy of the metal casting mounting seat 3 will be converted into the potential energy of the compression springs 21. When the metal casting mounting seat 3 stops moving, the potential energy of the compression springs 21 will be converted back into the kinetic energy of the metal casting. At this moment, the connecting rod 12 will contact the actuating rod 313, thus accelerating the metal casting mounting seat 3. This allows the metal casting mounting seat 3 to move back and forth at a faster speed, thereby improving detection efficiency. On the other hand, it reduces the probability of violent collisions between the connecting rod 12 and the actuating rod 313, thus increasing the service life of the metal wear testing device.

[0046] The rotation axis of the rotating seat 32 is horizontal and perpendicular to the arc-shaped sliding rail 2. An arc-shaped rack 14 is coaxially welded to the inner side of the grinding platform 1 and the arc-shaped sliding rail 2. A gear 321 meshing with the arc-shaped rack 14 is provided on the peripheral end of the rotating seat 32. This allows the rotating seat 32 to rotate while moving, with its rotation direction towards its own moving direction. The metal casting installed between the two rotating seats 32 can rotate quickly and come into contact with the arc-shaped wear test block 5, thereby improving the efficiency of the wear test.

[0047] A connecting column 322 is vertically welded to the end of the rotating base 32 away from the base 31. A connecting plate 323 is vertically welded to the end of the connecting column 322 away from the rotating base 32. Adjusting screws 324 are vertically connected to the corners of the connecting plate 323 via threads. A clamping plate 325 for clamping the metal casting is welded to the end of the adjusting screw 324 away from the rotating base 32. This allows the distance between the clamping plate 325 and the rotating base 32 to be adjusted by adjusting the screws 324, thereby firmly fixing the metal casting between the two rotating bases 32 by the two clamping plates 325.

[0048] The inner walls of the two halves of the grinding cover 4 are fixed with grinding mounting bases 41 by bolts. The arc-shaped wear test block 5 is detachably connected to the grinding mounting base 41. Multiple insertion slots 411 are opened on the end faces of the two grinding mounting bases 41 that are close to each other. The multiple insertion slots 411 are arranged along the length of the grinding mounting base 41. An adjusting spring 412 is coaxially inserted and fixed in the insertion slot 411. Multiple insertion rods 51 are welded on the arc-shaped wear test block 5 and inserted into the insertion slots 411. The end of the insertion rod 51 away from the arc-shaped wear test block 5 abuts against the end of the adjusting spring 412 away from the bottom of the insertion slot 411. A wear groove 52 is formed between the two arc-shaped wear test blocks 5 for the metal casting to slide through. The two ends of the wear groove 52 are flared. When the metal casting mounting base 3 drives the metal casting to move back and forth rapidly, the metal casting will be inserted along the flared opening at one end of the wear groove 52. At the same time, one end of the adjusting spring 412 abuts against the bottom of the insertion groove 411, and the other end abuts against the insertion rod 51, so that the arc-shaped wear test block 5 and the grinding mounting base 41 can move relative to each other to a certain extent. This ensures that when the metal casting mounting base 3 drives the metal casting to move back and forth rapidly, the friction generated between the metal casting and the arc-shaped wear test block 5 is not a rigid collision, but becomes a friction with a certain pressure under the action of the adjusting spring 412, thereby ensuring the safety of the test.

[0049] When conducting tests using this wear-resistant metal wear testing device, the first step is to rotate and open the two halves of the grinding cover 4, and rotate the adjusting screw 324 to adjust the distance between the clamping plate 325 and the rotating seat 32. This secures the metal casting between the two rotating seats 32 via the two clamping plates 325. Then, the two halves of the grinding cover 4 are rotated and closed. The second step involves the drive motor 11 rotating the connecting rod 12, causing the connecting rod 12 to contact the actuating rod 313 and drive the actuating rod 313. When 13 rotates, the connecting rod 12 moves relative to the actuating rod 313 while simultaneously driving the actuating rod 313 to move. When the connecting rod 12 contacts the actuating rod 313, it will abut against the ball 3134 and compress the buffer spring 3132. Subsequently, it moves relative to the actuating rod 313 along its length, causing the sliding friction between the connecting rod 12 and the actuating rod 313 to become rolling friction. The connecting rod 12 moves away from the metal casting mounting base 3 relative to the actuating rod 313. The metal casting mounting base 3 moves to one side until it disengages from the lever 313. At this time, the connecting rod 12 will directly rotate and insert into the through hole 13. At the same time, the two drive motors 11 drive the connecting rod 12 to rotate in opposite directions. When one connecting rod 12 disengages from the lever 313, the other connecting rod 12 will contact the lever 313 and drive the metal casting mounting base 3 to move in the opposite direction. When the two drive motors 11 work together, the metal casting mounting base 3 with the metal casting installed will move back and forth quickly at a relatively fast speed. The metal casting will be inserted along the flared opening at one end of the wear groove 52. At the same time, one end of the adjusting spring 412 abuts against the bottom of the insertion groove 411, and the other end abuts against the insertion rod 51, so that the arc-shaped wear test block 5 and the grinding mounting base 41 can move relative to each other to a certain extent. Step 3: After a certain period of time, stop the drive motor 11, rotate to open the two halves of the grinding cover 4 and take out the metal casting. The wear resistance of the wear-resistant metal casting is obtained by observation or measurement by other instruments.

[0050] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0051] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0052] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," or "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0053] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0054] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A wear-resistant metal wear testing device, characterized in that: The system includes a horizontally arranged grinding platform (1), two parallel arc-shaped sliding rails (2) located on the upper end of the grinding platform (1), a metal casting mounting base (3) that slides back and forth along the extension direction of the two arc-shaped sliding rails (2), two grinding covers (4) that are rotatably connected to the upper end of the grinding platform (1) and assembled to cover the arc-shaped sliding rails (2), and an arc-shaped wear test block (5) set on the inner wall of the grinding cover (4) for grinding the metal casting. The cross-section of the two arc-shaped sliding rails (2) perpendicular to the extension direction is shown in the figure. The two arc-shaped sliding rails (2) are circular and their axes are horizontal. The metal casting mounting base (3) is slidably fitted onto the arc-shaped sliding rails (2). The metal casting is fixed between the two metal casting mounting bases (3). The two arc-shaped sliding rails (2) are coaxial. The upper end face of the grinding platform (1) is provided with two drive motors (11) corresponding to the two arc-shaped sliding rails (2). A connecting rod (12) is vertically arranged on the output shaft of the drive motor (11). The other end of the connecting rod (12) drives the metal casting mounting base (3). 3) The metal casting mounting base (3) moves back and forth along the arc-shaped sliding rail (2). An arc-shaped sliding hole (311) is provided in the middle of the metal casting mounting base (3). A traveling steel ball (312) is rolled and embedded in the sliding hole (311) of the metal casting mounting base (3). The output shafts of the two drive motors (11) are horizontal and inclined to the axis of the arc-shaped sliding rail (2). A toggle rod (313) is horizontally arranged at the ends of the two metal casting mounting bases (3) that are far apart from each other. The toggle rod (313) is parallel to the arc-shaped sliding rail (2). The axis of the two drive motors (11) rotates in opposite directions. The two connecting rods (12) abut against the two actuating rods (313) on opposite sides and push the metal casting mounting base (3) to move. The connecting rods (12) rotate relative to each other along the length of the actuating rods (313) to the side away from the metal casting mounting base (3). The upper surface of the grinding platform (1) has through holes (13) on the outer side of the two arc-shaped sliding rails (2) for the connecting rods (12) to rotate through.

2. The wear-resistant metal wear testing device as described in claim 1, characterized in that: The actuating lever (313) abuts against one side of the connecting rod (12) and has a buffer groove (3131). The buffer groove (3131) is elongated along the length of the actuating lever (313). A buffer spring (3132) is vertically embedded in the buffer groove (3131). A ball seat (3133) is provided at one end of the buffer spring (3132) away from the bottom of the buffer groove (3131). A ball (3134) protruding from the buffer groove (3131) is rolled and embedded at the other end of the ball seat (3133) away from the buffer spring (3132).

3. The wear-resistant metal wear testing device as described in claim 1, characterized in that: Both ends of the arc-shaped sliding rail (2) are coaxially fitted with compression springs (21).

4. The wear-resistant metal wear testing device as described in claim 1, characterized in that: The inner walls of the two halves of the grinding cover (4) are provided with grinding mounting seats (41). The arc-shaped wear test block (5) is detachably connected to the grinding mounting seats (41). The two grinding mounting seats (41) are provided with multiple insertion slots (411) on their respective end faces. The multiple insertion slots (411) are arranged along the length of the grinding mounting seats (41). An adjusting spring (412) is coaxially inserted in the insertion slot (411). The arc-shaped wear test block (5) is provided with multiple insertion rods (51) inserted into the insertion slots (411). The end of the insertion rod (51) away from the arc-shaped wear test block (5) abuts against the end of the adjusting spring (412) away from the bottom of the insertion slot (411).

5. The wear-resistant metal wear testing device as described in claim 4, characterized in that: A wear groove (52) is formed between the two arc-shaped wear test blocks (5) for the metal casting to slide through, and the two ends of the wear groove (52) are flared.

6. The wear-resistant metal wear testing device as described in claim 1, characterized in that: The metal casting mounting base (3) includes a base base (31) sleeved on the arc-shaped moving slide rail (2) and a rotating base (32) rotatably connected to one end of the base base (31). The two ends of the metal casting are detachably connected to the two rotating bases (32). The grinding platform (1) is coaxially provided with an arc-shaped rack (14) on the inner side of the arc-shaped moving slide rail (2). The circumferential end of the rotating base (32) is provided with a gear (321) meshing with the arc-shaped rack (14).

7. A method for testing wear-resistant metals using the wear-resistant metal wear testing apparatus according to any one of claims 1-6, characterized in that: include, Step 1: Rotate to open the two halves of the grinding cover (4), fix the metal casting in the metal casting mounting base (3), and then rotate to close the two halves of the grinding cover (4); Step 2: Move the metal casting mounting base (3) back and forth quickly along the extension direction of the arc-shaped moving slide rail (2), and the metal casting will rub against the arc-shaped wear test blocks (5) on both sides during the movement; Step 3: After a certain period of time, stop moving the metal casting mounting base (3), rotate to open the two halves of the grinding cover (4) and take out the metal casting, and obtain the wear resistance of the wear-resistant metal casting by observation or other instrument measurement.

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