Impact fatigue resistance testing machine for grinding ball

Abstract

The utility model discloses an impact fatigue resistance testing machine for a grinding ball, which relates to the technical field of grinding ball performance testing and comprises a driving device, a transmission device, a feeding device, a falling ball testing device and a steel structure rack, and the driving device, the transmission device, the feeding device and the falling ball testing device are all mounted in the steel structure rack. The falling ball experiment device comprises a top chute, a plurality of falling ball pipes and a bottom chute, the upper ends and the lower ends of the falling ball pipes are communicated with the top chute and the bottom chute respectively, and the top chute is located at a discharge port in the upper end of the feeding device; according to the utility model, the plurality of ball falling pipes with different diameters are arranged, so that one experiment machine can be conveniently used for testing the impact fatigue resistance of grinding balls with different models, and the device has the advantages of simplicity and easiness in operation, low cost and easiness in manufacturing, so that the experiment detection cost is greatly saved, and reliable detection data is provided for improving the quality of grinding ball products.

Description

Technical Field

[0001] This utility model relates to the field of grinding ball performance testing technology, and more specifically to a grinding ball impact fatigue performance testing machine. Background Technology

[0002] Grinding balls are mainly used in ball mills and are one of the main grinding parts. They experience significant wear and are considered consumable parts, therefore requiring high wear resistance and impact resistance. Currently, devices for testing the impact fatigue resistance of grinding balls generally use a slide structure, simulating the actual working conditions of the grinding balls by subjecting them to reciprocating impact and rolling.

[0003] However, existing grinding ball impact fatigue performance testing machines have the following problems during use: the same testing machine is usually used to test grinding balls of a single specification and model. When testing grinding balls of different specifications and sizes, different ball drop channels need to be changed, which reduces the efficiency of grinding ball impact fatigue performance testing. Therefore, it is necessary to design a testing machine that can test the impact fatigue performance of grinding balls of multiple specifications and models. Utility Model Content

[0004] The purpose of this utility model is to provide a grinding ball impact fatigue performance testing machine in order to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a ball impact fatigue performance testing machine, comprising a drive device, a transmission device, a feeding device, a ball dropping test device, and a steel structure frame. The drive device, transmission device, feeding device, and ball dropping test device are all installed inside the steel structure frame. The ball dropping test device includes a top chute, multiple ball dropping pipes, and a bottom chute. The upper and lower ends of the multiple ball dropping pipes are respectively connected to the top chute and the bottom chute. The top chute is located at the upper discharge port of the feeding device.

[0006] To facilitate the driving device in providing power to the overall testing machine, in a preferred embodiment of the grinding ball impact fatigue performance testing machine of this utility model, the output end of the driving device is installed with the transmission device, which includes a large pulley, a V-belt, and a small pulley, and the large pulley and the small pulley are connected by a V-belt drive.

[0007] In order to feed grinding balls to the upper part of the testing machine, as a preferred embodiment of the grinding ball impact fatigue performance testing machine of this utility model, the feeding device includes a bottom roller, a rubber belt, a head roller, and buckets. The bottom roller is driven by a small pulley, and the bottom roller and the head roller are driven by a rubber belt. Multiple buckets are fixedly installed on the outside of the rubber belt.

[0008] In order to limit the movement of the rubber belt, as a preferred embodiment of the grinding ball impact fatigue performance testing machine of this utility model, two protective plates are fixedly installed on the steel structure frame. The two protective plates are located on the front and rear sides of the rubber belt, respectively, and angle steel is fixed on the opposite side of the two protective plates. Anti-deviation wheels are rotatably connected to the two angle steels, and the two anti-deviation wheels are in contact with the two edges of the rubber belt respectively.

[0009] In order to achieve a buffering effect on the falling grinding balls, as a preferred embodiment of the grinding ball impact fatigue performance testing machine of this utility model, a bottom ball-blocking device is installed at the bottom outlet of each of the multiple ball-dropping tubes. The bottom ball-blocking device includes a blocking plate and a hinge mechanism.

[0010] To facilitate the recording of experimental data, as a preferred embodiment of the grinding ball impact fatigue performance testing machine of this utility model, the testing machine further includes a counting system. The counting system includes a sensing baffle, a pin, a sensing plate, and a proximity switch. The sensing baffle is installed inside the top chute via the pin, the sensing plate is installed at one end of the pin, and the proximity switch is located outside the sensing plate.

[0011] The beneficial effects of this invention are as follows: During the impact fatigue performance test of grinding balls, the drive device starts the transmission device to drive the overall testing machine. During operation, the feeding device sequentially transports the grinding balls to the ball dropping test device, where they fall into the ball dropping tube of the corresponding size, and finally into the bottom chute of the steel structure support. This process is repeated to complete the test. By setting multiple ball dropping tubes of different diameters, it is convenient to use one testing machine to test the impact fatigue performance of different types of grinding balls. This testing machine has the advantages of being simple to operate, low in cost, and easy to manufacture. It uses a simple mechanical principle to complete the fatigue testing of grinding balls, greatly saving experimental testing costs and providing reliable test data to improve product quality. It can be widely used in fields such as fatigue life testing of wear-resistant steel balls and has great promotional value. Attached Figure Description

[0012] Figure 1 This is a front view of the falling ball testing machine in this invention;

[0013] Figure 2 This is a left view of the falling ball testing machine in this invention;

[0014] Figure 3 This is a front view of the belt misalignment device in this invention;

[0015] Figure 4 This is a right view of the belt misalignment device in this invention;

[0016] Figure 5 This is a front view of the ball-blocking device in this invention;

[0017] Figure 6 This is a top view of the chute in this invention;

[0018] Figure 7 This is the front view of the counting system in this invention.

[0019] Reference numerals: 1. Drive unit; 2. Transmission unit; 3. Feeding device; 4. Ball dropping test device; 5. Steel structure frame; 6. Counting system; 7. Large pulley; 8. V-belt; 9. Small pulley; 10. Bottom roller; 11. Rubber belt; 12. Head roller; 13. Bucket; 14. Top chute; 15. Ball dropping pipe; 16. Bottom chute; 17. Protective plate; 18. Angle steel; 19. Anti-deviation wheel; 20. Bottom ball blocking device; 21. Blocking plate; 22. Hinge mechanism; 23. Induction baffle; 24. Pin; 25. Induction plate; 26. Proximity switch. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Example 1:

[0023] refer to Figure 1-7 The grinding ball impact fatigue performance testing machine includes a drive unit 1, a transmission unit 2, a feeding unit 3, a ball dropping test device 4, and a steel structure frame 5. The drive unit 1, transmission unit 2, feeding unit 3, and ball dropping test device 4 are all installed inside the steel structure frame 5. The ball dropping test device 4 includes a top chute 14, multiple ball dropping tubes 15, and a bottom chute 16. The upper and lower ends of the multiple ball dropping tubes 15 are connected to the top chute 14 and the bottom chute 16, respectively. The top chute 14 is located at the upper discharge port of the feeding unit 3. The drive unit 1 starts the transmission unit 2 to drive the entire testing machine. During operation, the feeding unit 3 sequentially conveys grinding balls to the ball dropping test device 4, from where they fall into the corresponding sized ball dropping tubes 15, and finally into the bottom chute 16 of the steel structure frame 5. This process is repeated to complete the test. By setting multiple ball dropping tubes 15 with different diameters, this testing machine can conveniently test the impact fatigue performance of different types of grinding balls using a single machine.

[0024] Specifically, the output end of the drive device 1 is installed with the transmission device 2. The transmission device 2 includes a large pulley 7, a V-belt 8, and a small pulley 9. The large pulley 7 and the small pulley 9 are connected by the V-belt 8. The feeding device 3 includes a bottom roller 10, a rubber belt 11, a head roller 12, and buckets 13. The bottom roller 10 is connected to the small pulley 9, and the bottom roller 10 and the head roller 12 are connected by the rubber belt 11. Multiple buckets 13 are fixedly installed on the outside of the rubber belt 11. The drive device 1 motor reducer drives the large pulley 7, which drives the small pulley 9 through the V-belt 8. The rotation of the small pulley drives the transmission device 2. The bottom roller 10 in the transmission device drives the head roller 12 through the rubber belt 11, and the buckets 13 on the rubber belt send the grinding balls to the ball dropping test device 4.

[0025] Specifically, two protective plates 17 are fixedly installed on the steel frame 5. The two protective plates 17 are located on the front and rear sides of the rubber belt 11, respectively, and angle steel 18 is fixed on the opposite side of each of the two protective plates 17. Anti-deviation wheels 19 are rotatably connected to the two angle steel 18, and the two anti-deviation wheels 19 contact the two edges of the rubber belt 11. The anti-deviation wheels 19 on both sides contact the two edges of the rubber belt 11, thereby positioning the rubber belt 11 to ensure stable operation. The overall anti-deviation structure not only achieves the anti-deviation effect but also facilitates the replacement of the rubber belt 11 by the staff.

[0026] Specifically, a bottom ball-blocking device 20 is installed at the bottom discharge port of multiple ball drop tubes 15. The bottom ball-blocking device 20 includes a blocking plate 21 and a hinge mechanism 22. Different ball drop tubes 15 of different models are equipped with ball-blocking devices 20 of different sizes at the bottom. In order to allow the grinding balls to fully collide during the drop, a blocking plate 21 that is sealed by its own weight is added in front of the ball-blocking device 20.

[0027] Specifically, the experimental machine also includes a counting system 6, which includes a sensing baffle 23, a pin 24, a sensing plate 25, and a proximity switch 26. The sensing baffle 23 is installed inside the top chute 14 via the pin 24, the sensing plate 25 is installed at one end of the pin 24, and the proximity switch 26 is located outside the sensing plate 25. The grinding ball passes through the sensing plate 25, which rotates via the pin 24, causing it to reciprocate, thus triggering the proximity switch 26 to detect and begin counting. Simultaneously, multiple small ball-blocking plates of different sizes can be installed on both sides of the inner side of the top chute 14. These plates are located on one side above the corresponding ball-dropping pipes 15 of different sizes. During the experiment, for large-diameter grinding balls, the small ball-blocking plates are inserted into the top chute 14; for small-diameter grinding balls, the corresponding small ball-blocking plates are installed on the feed pipe 15 to close the unused opening at the top of the feed pipe 15, allowing the small-diameter balls to pass smoothly, and so on.

[0028] The technical solutions provided by the embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the embodiments of this utility model. The description of the above embodiments is only for helping to understand the principles of the embodiments of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the embodiments of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A ball impact fatigue performance testing machine, comprising a drive device (1), a transmission device (2), a feeding device (3), a ball dropping test device (4), and a steel structure frame (5), wherein the drive device (1), the transmission device (2), the feeding device (3), and the ball dropping test device (4) are all installed inside the steel structure frame (5), characterized in that: The ball dropping test device (4) includes a top chute (14), multiple ball dropping tubes (15), and a bottom chute (16). The upper and lower ends of the multiple ball dropping tubes (15) are respectively connected to the top chute (14) and the bottom chute (16). The top chute (14) is located at the upper outlet of the feeding device (3).

2. The grinding ball impact fatigue performance testing machine according to claim 1, characterized in that: The output end of the drive device (1) is installed with the transmission device (2). The transmission device (2) includes a large pulley (7), a V-belt (8), and a small pulley (9). The large pulley (7) and the small pulley (9) are connected by the V-belt (8).

3. The grinding ball impact fatigue performance testing machine according to claim 1, characterized in that: The feeding device (3) includes a bottom roller (10), a rubber belt (11), a head roller (12), and buckets (13). The bottom roller (10) is connected to a small pulley (9) for transmission. The bottom roller (10) and the head roller (12) are connected to each other through the rubber belt (11). Multiple buckets (13) are fixedly installed on the outside of the rubber belt (11).

4. The grinding ball impact fatigue performance testing machine according to claim 1, characterized in that: Two protective plates (17) are fixedly installed on the steel structure frame (5). The two protective plates (17) are located on the front and rear sides of the rubber belt (11) respectively, and angle steel (18) is fixed on the opposite side of the two protective plates (17). Anti-deviation wheels (19) are rotatably connected to the two angle steels (18), and the two anti-deviation wheels (19) are in contact with the two edges of the rubber belt (11) respectively.

5. The grinding ball impact fatigue performance testing machine according to claim 1, characterized in that: Each of the ball drop tubes (15) has a bottom ball blocking device (20) installed at its bottom outlet. The bottom ball blocking device (20) includes a blocking plate (21) and a hinge mechanism (22).

6. The grinding ball impact fatigue performance testing machine according to claim 1, characterized in that: The experimental machine also includes a counting system (6), which includes a sensing baffle (23), a pin (24), a sensing plate (25), and a proximity switch (26). The sensing baffle (23) is installed inside the top chute (14) via the pin (24), the sensing plate (25) is installed at one end of the pin (24), and the proximity switch (26) is located outside the sensing plate (25).

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