A kind of mill ball fatigue resistance test testing machine

Abstract

This utility model discloses a fatigue testing machine for grinding balls, belonging to the technical field of fatigue testing equipment. The grinding ball fatigue testing machine includes a rotating body, a test frame, a power system, and a control system. The power system drives the rotating body to rotate, and the control system is connected to the power system. A cover plate is provided on the outer side of the rotating body, and the rotating body is rotatably mounted on the test frame. A feed inlet is provided inside the rotating body, and a feed baffle, an elastic component, and a feed frame are provided at the position of the feed inlet. The feed baffle cooperates with the feed inlet, and the feed frame is installed on the inner wall of the rotating body. A guide groove cooperating with the feed baffle is provided inside the feed frame, and an elastic component is installed between the feed baffle and the feed frame. A conveying device is provided on the outer side of the rotating body. This utility model provides a grinding ball fatigue testing machine that tests the fatigue life of grinding balls inside the rotating body, suitable for testing both large and small-sized grinding balls.

Description

Technical Field

[0001] This utility model belongs to the technical field of fatigue resistance testing equipment, specifically relating to a grinding ball fatigue resistance testing machine. Background Technology

[0002] Grinding balls are a type of grinding media used in ball mills, primarily for crushing and grinding materials such as ores, cement, and ceramics.

[0003] Traditional equipment for testing the fatigue life of grinding balls is a drop ball testing machine. The disadvantage of this testing machine is that it cannot perform fatigue testing on small-sized products. Therefore, this application proposes a grinding ball fatigue testing machine with a rotatable rotating body inside. The grinding balls are tested for fatigue life inside the rotating body, which can be applied to the testing of large and small-sized grinding balls. Utility Model Content

[0004] The purpose of this invention is to provide a grinding ball fatigue testing machine to solve the problem mentioned in the background art that traditional equipment for testing the fatigue life of grinding balls cannot perform fatigue testing on small-sized products.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a grinding ball fatigue resistance testing machine, comprising a rotating body, a test frame, a power system, and a control system. The power system is used to drive the rotating body to rotate, and the control system is connected to the power system. A cover plate is provided on the outer side of the rotating body, and the rotating body is rotatably mounted on the test frame.

[0006] The rotating body is provided with a feed inlet, and a feed baffle, an elastic component, and a feed frame are provided at the position of the feed inlet. The feed baffle cooperates with the feed inlet, and the feed frame is installed on the inner wall of the rotating body. The feed frame is provided with a guide groove that cooperates with the feed baffle. An elastic component is installed between the feed baffle and the feed frame.

[0007] A conveying device is provided on the outside of the rotating body. The conveying device includes a grinding ball feed pipe and a grinding ball discharge pipe. A baffle opening and closing power mechanism is provided on the outside of the conveying device.

[0008] The baffle opening and closing power mechanism is used to drive the grinding ball feeding pipe to squeeze the feeding baffle, giving the feeding baffle a force to move along the guide groove towards the inside of the rotating body.

[0009] Preferably, the rotating body and the cover plate are fixedly connected by bolts, and a number of ribs are provided on the outer wall of the rotating body.

[0010] Preferably, ribs are provided on both sides of the rib plate, the ribs are installed on the outer wall of the rotating body, and multiple rib plates are distributed in a circumferential array around the center line of the rotating body.

[0011] Preferably, there are two test frames, which are located on opposite sides of the rotating body.

[0012] Preferably, the test frame is provided with a bearing housing, and the rotating body is inserted into the bearing housing.

[0013] Preferably, the test frame is a trapezoidal frame made of channel steel spliced ​​together, and the bottom of the test frame is provided with several inclined plates and several bases.

[0014] Preferably, four bases are provided, which are respectively located on the front and rear sides of the test frame, with the two bases on the same side symmetrically distributed around the center line of the test frame.

[0015] Preferably, a limiting plate is provided at the feed baffle, the limiting plate is located inside the rotating body, and the size of the limiting plate is larger than the size of the feed inlet.

[0016] Preferably, the conveying device includes a conveying housing, a conveying shaft, conveying blades, and a conveying motor. The conveying housing is inclined, the conveying blades are mounted on the conveying shaft, the conveying shaft is rotatably mounted inside the conveying housing, the conveying shaft is connected to the output end of the conveying motor, and the conveying motor is connected to the control system.

[0017] Preferably, the outer side of the rotating body is provided with a base plate, and the base plate is provided with a sliding groove, into which a slider is inserted, and the slider is installed at the bottom of the conveying housing.

[0018] Beneficial effects:

[0019] This utility model provides a grinding ball fatigue testing machine. The grinding balls are tested for fatigue life inside the rotating body. It is suitable for testing large and small grinding balls. The baffle opening and closing power mechanism drives the grinding ball feeding pipe to squeeze the feeding baffle, giving the feeding baffle a force to move along the guide groove towards the inside of the rotating body. When the feeding baffle is squeezed, it enters the rotating body, and the feeding port leaks out. At this time, the elastic component accumulates elastic potential energy. When the feeding baffle loses pressure, the elastic component will squeeze the feeding baffle, causing the feeding baffle to block the feeding port again. At this time, the grinding ball feeding pipe is inserted into the rotating body. The rotation of the conveying motor in the conveying device can drive the conveying shaft and conveying blades to rotate. The conveying blades can push the grinding balls that enter through the grinding ball feeding pipe, transporting the grinding balls to the position of the grinding ball feeding pipe, and finally sending the grinding balls into the rotating body, realizing the grinding ball feeding function. Compared with manual feeding, the movement of components such as the baffle opening and closing power mechanism can significantly reduce the workload of the workers. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the fatigue resistance testing machine for grinding balls in this utility model;

[0021] Figure 2This is a side view of the grinding ball fatigue resistance testing machine of this utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the grinding ball fatigue resistance testing machine in this utility model;

[0023] Figure 4 This is a schematic diagram of the feeding frame and guide groove in this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Rotating body; 2. Cover plate; 3. Test frame; 4. Rib plate; 5. Rib; 6. Inclined plate; 7. Base; 8. Conveying shell; 9. Conveying blade; 10. Conveying motor; 11. Grinding ball feed pipe; 12. Grinding ball discharge pipe; 13. Feed baffle; 14. Feeding frame; 15. Guide groove; 16. Limiting plate; 17. Baffle opening and closing power mechanism; 18. Sliding block; 19. Base plate. Detailed Implementation

[0026] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0027] like Figures 1-4 As shown in the figure, the present invention provides a grinding ball fatigue testing machine, including a rotating body 1, a test frame 3, a power system, and a control system. The power system is used to drive the rotating body 1 to rotate. The control system is connected to the power system and is used to control the rotation of the rotating body 1. A cover plate 2 is provided on the outer side of the rotating body 1. The rotating body 1 and the cover plate 2 are fixedly connected by bolts. Several ribs 4 are provided on the outer wall of the rotating body 1. Ribs 5 are provided on both sides of the ribs 4. The ribs 5 are installed on the outer wall of the rotating body 1. The multiple ribs 4 are arranged in a circumferential array around the center line of the rotating body 1.

[0028] Multiple ribs 4 and ribs 5 are provided on the outer wall of the rotating body 1, which can greatly improve the strength of the rotating body 1. In this way, when the grinding ball enters the rotating body 1 and rotates and collides with each other and wears each other inside the rotating body 1, the rotating body 1 can withstand the impact force.

[0029] It should be noted that the rotating body 1 is rotatably mounted on the test frame 3. There are two test frames 3, which are located on both sides of the rotating body 1. Specifically, the test frame 3 is equipped with bearing seats, and the rotating body 1 is inserted into the bearing seats.

[0030] To improve the strength of the test frame 3, the test frame 3 is made of channel steel spliced ​​into a trapezoidal frame. Several inclined plates 6 are set at the bottom of the test frame 3, and several bases 7 are set at the bottom of the test frame 3. There are four bases 7, which are respectively set on the front and rear sides of the test frame 3. The two bases 7 on the same side are symmetrically distributed around the center line of the test frame 3.

[0031] To facilitate the feeding of grinding balls into the interior of the rotating body 1, a feed inlet is provided inside the rotating body 1. At the location of the feed inlet, a feed baffle 13, an elastic component, and a feed frame 14 are provided. The feed baffle 13 cooperates with the feed inlet, and the feed frame 14 is installed on the inner wall of the rotating body 1. The feed frame 14 is provided with a guide groove 15 that cooperates with the feed baffle 13. An elastic component is installed between the feed baffle 13 and the feed frame 14. When the feed baffle 13 is squeezed, it enters the rotating body 1, and the feed inlet is exposed. At this time, the elastic component accumulates elastic potential energy. When the feed baffle 13 loses pressure, the elastic component will squeeze the feed baffle 13, causing the feed baffle 13 to block the feed inlet again. The elastic component can be a common spring, and multiple KH08x15 springs can be used.

[0032] It should be noted that a limiting plate 16 is provided at the feed baffle 13. The limiting plate 16 is located inside the rotating body 1, and the size of the limiting plate 16 is larger than the size of the feed inlet. The setting of the limiting plate 16 ensures that the feed baffle 13 will not detach from the feed inlet, and the elastic component is connected to the limiting plate 16.

[0033] In order to transport the grinding balls from the bottom into the interior of the rotating body 1, a conveying device is provided on the outside of the rotating body 1. The conveying device includes a grinding ball feed pipe 11 and a grinding ball discharge pipe 12. A baffle opening and closing power mechanism 17 is provided on the outside of the conveying device.

[0034] The baffle opening and closing power mechanism 17 is used to drive the grinding ball feeding pipe 12 to squeeze the feeding baffle 13, giving the feeding baffle 13 a force to move along the guide groove 15 toward the inside of the rotating body 1. The baffle opening and closing power mechanism 17 can be a common hydraulic cylinder.

[0035] Specifically, the conveying device includes a conveying housing 8, a conveying shaft, conveying blades 9, and a conveying motor 10. The conveying housing 8 is inclined, and the conveying blades 9 are mounted on the conveying shaft. The conveying shaft is rotatably mounted inside the conveying housing 8. The conveying shaft is connected to the output end of the conveying motor 10, and the conveying motor 10 is connected to the control system. When the conveying motor 10 rotates, it drives the conveying shaft and the conveying blades 9 to rotate. The conveying blades 9 can push the grinding balls that enter through the grinding ball feed pipe 11, transporting the grinding balls to the position of the grinding ball discharge pipe 12.

[0036] In order to support and guide the movement of the conveying device, a base plate 19 is provided on the outside of the rotating body 1. A sliding groove is provided in the base plate 19, and a slider 18 is inserted into the sliding groove. The slider 18 is installed at the bottom of the conveying housing 8.

[0037] In summary: This utility model embodiment provides a grinding ball fatigue testing machine. The baffle opening and closing power mechanism 17 is used to drive the grinding ball feeding tube 12 to squeeze the feeding baffle 13, giving the feeding baffle 13 a force to move along the guide groove 15 towards the inside of the rotating body 1. When the feeding baffle 13 is squeezed, it will enter the rotating body 1 and the feed port will leak out. At this time, the elastic component accumulates elastic potential energy. When the feeding baffle 13 loses pressure, the elastic component will squeeze the feeding baffle 13, allowing the feeding baffle 13 to block the feed port again. At this time, the grinding ball feeding tube 12 is inserted into the rotating body 1.

[0038] The conveyor motor 10 in the conveying device rotates, which drives the conveyor shaft and conveyor blades 9 to rotate. The conveyor blades 9 can push the grinding balls that enter through the grinding ball feed pipe 11, transport the grinding balls to the position of the grinding ball discharge pipe 12, and finally send the grinding balls into the rotating body 1, realizing the function of feeding grinding balls. Compared with manual feeding, the movement of components such as the baffle opening and closing power mechanism 17 can greatly reduce the workload of the staff.

[0039] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A fatigue testing machine for grinding balls, comprising a rotating body (1), a test frame (3), a power system, and a control system, wherein the power system is used to drive the rotating body (1) to rotate, and the control system is connected to the power system, characterized in that, The rotating body (1) is provided with a cover plate (2) on the outside, and the rotating body (1) is rotatably mounted on the test frame (3); The rotating body (1) is provided with a feed inlet. At the position of the feed inlet, a feed baffle (13), an elastic component, and a feed frame (14) are provided. The feed baffle (13) cooperates with the feed inlet. The feed frame (14) is installed on the inner wall of the rotating body (1). The feed frame (14) is provided with a guide groove (15) that cooperates with the feed baffle (13). An elastic component is installed between the feed baffle (13) and the feed frame (14). A conveying device is provided on the outside of the rotating body (1). The conveying device includes a grinding ball feed pipe (11) and a grinding ball discharge pipe (12). A baffle opening and closing power mechanism (17) is provided on the outside of the conveying device. The baffle opening and closing power mechanism (17) is used to drive the grinding ball feeding pipe (12) to squeeze the feeding baffle (13) and give the feeding baffle (13) a force to move along the guide groove (15) towards the inside of the rotating body (1).

2. The grinding ball fatigue resistance testing machine as described in claim 1, characterized in that, The rotating body (1) and the cover plate (2) are fixedly connected by bolts, and a number of ribs (4) are provided on the outer wall of the rotating body (1).

3. The grinding ball fatigue resistance testing machine as described in claim 2, characterized in that, Ribs (5) are provided on both sides of the rib plate (4), and the ribs (5) are installed on the outer wall of the rotating body (1). Multiple rib plates (4) are arranged in a circular array around the center line of the rotating body (1).

4. The grinding ball fatigue resistance testing machine as described in claim 1, characterized in that, There are two test frames (3), which are located on both sides of the rotating body (1).

5. The grinding ball fatigue resistance testing machine as described in claim 4, characterized in that, The test frame (3) is equipped with a bearing seat, and the rotating body (1) is inserted into the bearing seat.

6. The grinding ball fatigue resistance testing machine as described in claim 1, characterized in that, The test frame (3) is a trapezoidal frame made of channel steel. Several inclined plates (6) are provided at the bottom of the test frame (3), and several bases (7) are provided at the bottom of the test frame (3).

7. The grinding ball fatigue resistance testing machine as described in claim 6, characterized in that, The base (7) is provided in four parts, and the four bases (7) are respectively located on the front and rear sides of the test frame (3). The two bases (7) on the same side are symmetrically distributed with respect to the center line of the test frame (3).

8. The grinding ball fatigue resistance testing machine as described in claim 1, characterized in that, A limiting plate (16) is provided at the feed baffle (13). The limiting plate (16) is located inside the rotating body (1), and the size of the limiting plate (16) is larger than the size of the feed inlet.

9. The grinding ball fatigue resistance testing machine as described in claim 1, characterized in that, The conveying device includes a conveying housing (8), a conveying shaft, conveying blades (9), and a conveying motor (10). The conveying housing (8) is inclined, the conveying blades (9) are mounted on the conveying shaft, the conveying shaft is rotatably mounted inside the conveying housing (8), the conveying shaft is connected to the output end of the conveying motor (10), and the conveying motor (10) is connected to the control system.

10. The grinding ball fatigue resistance testing machine as described in claim 1, characterized in that, The outer side of the rotating body (1) is provided with a base plate (19), and a sliding groove is provided in the base plate (19). A slider (18) is inserted into the sliding groove and is installed at the bottom of the conveying housing (8).

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