Continuous drop test device for wear-resistant steel balls

Abstract

The invention provides a wear-resistant steel ball continuous drop test device, which comprises a rack, a lifting mechanism, a drop pipeline, an impact force sensor, a conveying channel, a separation mechanism and a moving assembly, and is characterized in that the lifting mechanism is connected with the rack, and the drop pipeline and the conveying channel are respectively communicated with two ends of the lifting mechanism; the lifting mechanism conveys the wear-resistant steel balls in the conveying channel into the falling pipeline, and the impact force sensor is connected with the rack; the separation mechanism comprises a separation pipe and a bottom end plugging assembly, and the separation pipe is located between the falling pipeline and the impact force sensor; the moving assembly is connected with the rack and drives the separation pipe to move, so that the separation pipe is in butt joint with the falling pipeline and the conveying channel. The bottom end plugging assembly is used for opening and closing the bottom end of the separation pipe. The impact force sensor can improve the influence of the rebound of the wear-resistant steel ball on the test result, and reduce the additional wear of the rebound of the wear-resistant steel ball on the impact force sensor.

Description

Technical Field

[0001] The present application relates to the technical field of steel ball drop tests, and in particular to a wear-resistant steel ball continuous drop test device. Background Art

[0002] Wear-resistant steel balls are a type of crushing media used in ball mills, mainly used to grind materials to meet the use standards. Wear-resistant steel balls are usually made of materials with high hardness and high wear resistance, such as chromium alloy cast iron, ductile iron, forged steel balls and hot-rolled steel balls. Wear-resistant steel balls have high hardness, high wear resistance, high strength and good wear resistance. Wear-resistant steel balls are widely used in metallurgical mining, cement building materials, thermal power generation, chemical industry, water-coal slurry, pelletized ore, slag, ultrafine powder, fly ash, calcium carbonate and quartz sand industries. In these industries, wear-resistant steel balls are used in grinding operations in grinding mills to achieve the purpose of grinding.

[0003] After the wear-resistant steel balls are produced, a wear-resistant steel ball drop test device is generally used to test the performance of the wear-resistant steel balls. The wear-resistant steel ball drop test device in the related art includes a frame, a lifting mechanism, a drop pipe, an impact force sensor and a conveying channel. The lifting mechanism is connected to the frame, the drop pipe is fixedly connected to the frame, the drop pipe is connected to the lifting mechanism, the drop pipe is vertically arranged, the impact force sensor is located at the bottom end of the drop pipe, and the conveying channel is respectively connected to the bottom end of the drop pipe and the lifting mechanism. The lifting mechanism transports the wear-resistant steel balls in the conveying channel to the drop pipe, and the wear-resistant steel balls fall freely in the drop pipe until they hit the impact force sensor, which can detect and record the impact force generated by the wear-resistant steel balls. Subsequently, the wear-resistant steel balls flow back to the lifting mechanism through the conveying channel, so that the wear-resistant steel balls can be repeatedly dropped. In the drop test, the surface scratches, depressions and surface spots of the wear-resistant steel balls are observed to evaluate the performance of the wear-resistant steel balls.

[0004] After hitting the impact force sensor, the wear-resistant steel ball will rebound. Due to the differences between wear-resistant steel balls during production, the rebound height and rebound times will also be different, thus affecting the consistency and accuracy of the detection. In addition, since the wear-resistant steel ball will rebound multiple times in one fall, the wear-resistant steel ball will cause additional wear to the impact force sensor, affecting the service life of the impact force sensor. Summary of the invention

[0005] In order to improve the impact of the rebound of the wear-resistant steel ball on the test results and reduce the additional wear of the impact force sensor caused by the rebound of the wear-resistant steel ball, the present application provides a wear-resistant steel ball continuous drop test device.

[0006] The present application provides a wear-resistant steel ball continuous drop test device, which adopts the following technical solution: A wear-resistant steel ball continuous drop test device, comprising a frame, a lifting mechanism, a drop pipe, an impact force sensor, a conveying channel, a partition mechanism and a moving assembly, wherein the lifting mechanism is connected to the frame, the drop pipe and the conveying channel are respectively connected to two ends of the lifting mechanism, and the lifting mechanism conveys the wear-resistant steel balls in the conveying channel to the drop pipe; the impact force sensor is connected to the frame, the drop pipe is vertically arranged, and the drop pipe faces the impact force sensor; The separation mechanism includes a separation tube and a bottom sealing assembly. The moving assembly is connected to the frame. The separation tube is located between the drop pipe and the impact force sensor. The moving assembly drives the separation tube to move so that the separation tube is respectively connected to the drop pipe and the conveying channel. The bottom sealing assembly is used to open and close the bottom end of the separation tube.

[0007] By adopting the above technical solution, the wear-resistant steel ball hits the impact force sensor during the falling process and then rebounds into the separation tube. Then the bottom end blocking component blocks the bottom end of the separation tube, so that the wear-resistant steel ball is temporarily stored in the separation tube, reducing the additional wear of the impact force sensor caused by the multiple rebounds of the wear-resistant steel ball, and also improving the consistency and accuracy of the impact force sensor in detecting the wear-resistant steel ball. Then the moving component drives the separation tube to dock with the conveying channel, and the bottom end blocking component opens the bottom end of the separation tube to release the wear-resistant steel ball into the conveying channel. The wear-resistant steel ball enters the lifting mechanism along the conveying channel, and repeated drop tests can be performed.

[0008] Optionally, the bottom sealing assembly includes a support box, a sealing drive source and a sealing plate, the support box is connected to the separation tube, the sealing drive source is connected to the support box, and the sealing drive source drives the sealing plate to move so that the sealing plate seals the bottom end of the separation tube.

[0009] By adopting the above technical solution, when the wear-resistant steel ball rebounds into the separation tube, the sealing drive source drives the sealing plate to move, so that the sealing plate blocks the bottom end of the separation tube, and the wear-resistant steel ball finally falls back onto the sealing plate, so that the sealing plate carries the wear-resistant steel ball.

[0010] Optionally, the bottom blocking assembly further includes a slider and a slide rail, the slide rail is connected to the support box, the slider is slidably connected to the slide rail, the blocking plate is connected to the slider, and the blocking drive source drives the slider to slide along the slide rail.

[0011] By adopting the above technical solution, the cooperation of the slider and the slide rail enables the blocking plate to move stably along the predetermined path, ensuring that the blocking plate blocks or opens the bottom end of the partition tube, thereby improving the reliability and stability of the blocking plate during movement.

[0012] Optionally, a supporting ring groove is formed at the bottom end of the separation tube, and when the sealing plate seals the bottom end of the separation tube, the sealing plate is engaged with the supporting ring groove.

[0013] By adopting the above technical solution, when the blocking plate blocks the bottom end of the partition tube, the blocking plate is engaged with the supporting ring groove, thereby improving the stability of the blocking plate under stress.

[0014] Optionally, the separation tube sleeve is provided with an electromagnetic coil, and the electromagnetic coil is used to slow down the rebound speed of the wear-resistant steel ball in the separation tube.

[0015] By adopting the above technical solution, when the wear-resistant steel ball rebounds in the separation tube, the electromagnetic coil is turned on, so that the movement speed of the wear-resistant steel ball in the separation tube is slowed down, the impact force of the wear-resistant steel ball on the sealing plate is reduced, and the additional wear of the wear-resistant steel ball is also reduced.

[0016] Optionally, a plurality of the partitioning mechanisms are provided, a plurality of the conveying channels are correspondingly provided, adjacent partitioning mechanisms are connected, and the moving component drives the plurality of partitioning mechanisms to move.

[0017] By adopting the above technical solution, multiple separation mechanisms and corresponding conveying channels are provided to achieve alternating operation and improve the detection efficiency of wear-resistant steel balls.

[0018] Optionally, the conveying channel includes a guide groove body and a reflux channel, the guide groove body is connected to the reflux channel, the reflux channel is connected to the lifting mechanism, the guide groove body is used to dock with the separator tube, and a pushing assembly is provided on the frame, and the pushing assembly is used to push the wear-resistant steel balls in the guide groove body into the reflux channel.

[0019] By adopting the above technical solution, after the separation tube is connected to the guide groove body, the wear-resistant steel ball enters the guide groove body, the push-in component pushes the wear-resistant steel ball into the reflux channel, and the wear-resistant steel ball enters the lifting mechanism along the reflux channel, thereby realizing a continuous drop test.

[0020] Optionally, the pushing component includes a pushing drive source and a pushing block, the pushing drive source is connected to the guide groove body, and the pushing block is connected to the pushing drive source; the pushing drive source drives the pushing block to move, so that the pushing block pushes the wear-resistant steel ball in the guide groove body into the reflux channel.

[0021] By adopting the above technical solution, the driving source is pushed in to drive the pushing block to move, and the wear-resistant steel ball in the guide groove body is smoothly pushed into the reflux channel. When the wear-resistant steel ball is in the guide groove body, it is easy to observe the damage of the wear-resistant steel ball after the impact.

[0022] Optionally, a shooting module and a rejection component are provided on the frame, the shooting module captures the image of the wear-resistant steel balls in the guide groove body, and the rejection component is used to remove unqualified wear-resistant steel balls in the guide groove body.

[0023] By adopting the above technical solution, the camera module can capture the image of the wear-resistant steel ball while the wear-resistant steel ball moves in the guide groove, ensuring that the surface condition of each wear-resistant steel ball can be recorded. For unqualified wear-resistant steel balls, the rejection component will promptly reject the unqualified wear-resistant steel balls, thereby improving the detection efficiency.

[0024] Optionally, the rejection component includes a movable slide and a clamp, the movable slide is connected to the frame, the clamp is connected to the movable slide, the movable slide drives the clamp to move on a plane, and the clamp is used to clamp the wear-resistant steel ball.

[0025] By adopting the above technical solution, the mobile slide drives the clamp to move on the vertical plane, and the position of the clamp can be controlled so that the clamp reaches the specified position. The clamp then clamps the wear-resistant steel ball. Finally, the mobile slide and the clamp drive the wear-resistant steel ball to move out of the guide groove, so that unqualified wear-resistant steel balls can be removed in time, thereby improving the detection efficiency.

[0026] In summary, the present application includes at least one of the following beneficial effects: 1. After hitting the impact force sensor, the wear-resistant steel ball rebounds into the separation tube, and the bottom end blocking component blocks the bottom end of the separation tube, so that the wear-resistant steel ball is temporarily stored in the separation tube, reducing the additional wear of the impact force sensor caused by the multiple rebounds of the wear-resistant steel ball; then the moving component drives the separation tube to dock with the conveying channel, and the bottom end blocking component opens the bottom end of the separation tube to release the wear-resistant steel ball into the conveying channel. The wear-resistant steel ball enters the lifting mechanism along the conveying channel, and repeated drop tests can be performed; 2. The moving assembly drives multiple partition mechanisms to alternately dock with the falling pipes. When one of the partition mechanisms is storing wear-resistant steel balls, the other partition mechanisms can release the wear-resistant steel balls into the guide groove, thereby improving the detection efficiency of the wear-resistant steel balls; 3. The setting of the shooting module and the rejection component can shoot and check the status of the wear-resistant steel balls in real time during the test, and promptly detect and reject unqualified wear-resistant steel balls, further improving the validity and reliability of the test data. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the wear-resistant steel ball continuous drop test device of the embodiment of the present application; Figure 2 This is a schematic diagram of the structure of the embodiment of the present application without the lifting mechanism; Figure 3It is a schematic diagram of the exploded structure of the bottom end plugging assembly and the separation tube after the support box of the embodiment of the present application is cut; Figure 4 It is a schematic diagram of the structure of the conveying channel, the pushing component, the rejecting component and the shooting module of the embodiment of the present application.

[0028] Explanation of the accompanying drawings: 1. Frame; 2. Lifting mechanism; 3. Drop pipe; 4. Impact force sensor; 5. Conveying channel; 51. Guide trough; 52. Return channel; 6. Partitioning mechanism; 61. Partitioning tube; 62. Bottom end blocking assembly; 621. Support box; 622. Blocking drive source; 623. Blocking plate; 624. Slider; 625. Slide rail; 63. Electromagnetic coil; 64. Connecting plate; 7. Moving assembly; 71. Connecting rod; 72. Moving module; 8. Pushing assembly; 81. Pushing drive source; 82. Pushing block; 9. Rejecting assembly; 91. Moving slide; 92. Clamp; 100. Shooting module. DETAILED DESCRIPTION

[0029] The following combination Figures 1 to 4 This application is described in further detail.

[0030] An embodiment of the present application provides a wear-resistant steel ball continuous drop test device.

[0031] refer to Figure 1 and Figure 2 The wear-resistant steel ball continuous drop test device includes a frame 1, a lifting mechanism 2, a drop pipe 3, an impact force sensor 4 and a conveying channel 5. The frame 1 is fixed on the ground, and the lifting mechanism 2 specifically adopts a screw conveyor, and the lifting mechanism 2 is connected to the frame 1. The drop pipe 3 is fixedly connected to the frame 1, and the drop pipe 3 is vertically arranged. The drop pipe 3 is connected to the lifting mechanism 2. The lifting mechanism 2 can convey the wear-resistant steel ball into the drop pipe 3, and the wear-resistant steel ball performs free fall motion in the drop pipe 3. The impact force sensor 4 is fixedly connected to the frame 1, and the drop pipe 3 faces the impact force sensor 4.

[0032] refer to Figure 1 and Figure 2 The wear-resistant steel ball continuous drop test device also includes a moving component 7 and a separation mechanism 6. The moving component 7 includes a connecting rod 71 and a moving module 72. The moving module 72 specifically adopts a linear module. The moving module 72 is fixedly connected to the frame 1. The connecting rod 71 is fixedly connected to the moving end of the moving module 72. The moving module 72 can drive the connecting rod 71 to move along a straight line.

[0033] refer to Figure 2 and Figure 3The partition mechanism 6 includes a partition tube 61, a bottom plugging assembly 62 and an electromagnetic coil 63. The bottom plugging assembly 62 includes a support box 621, a plugging driving source 622, a plugging plate 623, a slider 624 and a slide rail 625. The partition tube 61 is fixedly connected to the connecting rod 71. The moving module 72 can drive the partition tube 61 to move through the connecting rod 71. The partition tube 61 can be docked and connected with the drop pipe 3.

[0034] refer to Figure 2 and Figure 3 The support box 621 is fixedly connected to the side wall of the partition tube 61, the slide rail 625 is fixedly connected to the support box 621, and the slider 624 is slidably connected to the slide rail 625. The blocking drive source 622 is specifically an electric push rod, the blocking drive source 622 is fixedly connected to the support box 621, the moving end of the blocking drive source 622 is fixedly connected to the slider 624, and the blocking drive source 622 drives the slider 624 to slide along the slide rail 625.

[0035] refer to Figure 2 and Figure 3 The blocking plate 623 is fixedly connected to the slider 624, the blocking plate 623 is horizontally arranged, and the slider 624 drives the blocking plate 623 to move, so that the blocking plate 623 opens and closes the bottom end of the partition tube 61. A support ring groove is provided at the bottom end of the partition tube 61, and the blocking plate 623 can be clamped in the support ring groove. The support ring groove can improve the force stability of the blocking plate 623 when it is located at the bottom end of the partition tube 61.

[0036] refer to Figure 2 and Figure 3 The wear-resistant steel ball falls from the falling pipe 3, and will rebound after hitting the impact force sensor 4. The impact force sensor 4 detects the impact data of the wear-resistant steel ball. Then the blocking driving source 622 drives the blocking plate 623 to move through the slider 624, so that the blocking plate 623 blocks the bottom end of the partition tube 61, and the wear-resistant steel ball finally falls back onto the blocking plate 623.

[0037] refer to Figure 2 and Figure 3 The blocking plate 623 is made of a flexible material, which can reduce the number of rebounds of the wear-resistant steel ball on the blocking plate 623 and reduce the wear of the wear-resistant steel ball. The electromagnetic coil 63 is wound around the outside of the separation tube 61. When the wear-resistant steel ball rebounds into the separation tube 61, the electromagnetic coil 63 is activated. The electromagnetic coil 63 can reduce the moving speed of the wear-resistant steel ball in the separation tube 61, which is conducive to the wear-resistant steel ball falling back onto the blocking plate 623.

[0038] refer to Figure 1 and Figure 2 The conveying channel 5 includes a guide groove body 51 and a reflux channel 52 . Two guide groove bodies 51 are provided. Both guide groove bodies 51 are connected to the reflux channel 52 . The reflux channel 52 is connected to the lifting mechanism 2 .

[0039] refer to Figure 1 and Figure 2 In the present embodiment, two partition mechanisms 6 are provided, and a connecting plate 64 is fixedly connected between the two partition tubes 61. The two partition mechanisms 6 correspond one to one with the two guide groove bodies 51. The moving component 7 enables the two partition tubes 61 to dock with the two guide groove bodies 51 respectively, and enables the partition tubes 61 of the two partition mechanisms 6 to dock with the drop pipe 3 alternately, thereby improving the detection efficiency.

[0040] refer to Figure 2 and Figure 4 The frame 1 is provided with a push-in assembly 8, a rejection assembly 9 and a shooting module 100, and the push-in assembly 8 includes a push-in drive source 81 and a push block 82. The push-in drive source 81 specifically adopts an electric push rod, the push-in drive source 81 is connected to the frame 1, and the push block 82 is fixedly connected to the moving end of the push-in drive source 81. The guide groove body 51 and the reflux channel 52 are both inclinedly arranged. When the wear-resistant steel ball moves to a position close to the push block 82 in the guide groove body 51 under the action of gravity, the push-in drive source 81 drives the push block 82 to move, so that the push block 82 pushes the wear-resistant steel ball in the guide groove body 51 into the reflux channel 52, and the wear-resistant steel ball enters the lifting mechanism 2 along the reflux channel 52.

[0041] refer to Figure 2 and Figure 4 The shooting module 100 is connected to the frame 1, and multiple shooting modules 100 are provided. The multiple shooting modules 100 can shoot the image of the wear-resistant steel ball in the guide groove 51 and transmit the image back to the background so that the staff can view and record the appearance quality of the wear-resistant steel ball after impact.

[0042] refer to Figure 2 and Figure 4 The rejection component 9 includes a movable slide 91 and a clamp 92. In the present embodiment, the movable slide 91 specifically adopts a two-axis linear module, and the clamp 92 specifically adopts an electric clamp. The movable slide 91 is fixedly connected to the frame 1, and the clamp 92 is fixedly connected to the movable end of the movable slide 91. The movable slide 91 can drive the clamp 92 to move on a vertical plane, and the clamp 92 can clamp the wear-resistant steel balls, so that the unqualified wear-resistant steel balls in the guide groove 51 can be moved out, thereby timely rejecting the unqualified wear-resistant steel balls.

[0043] The implementation principle of the wear-resistant steel ball continuous drop test device of the embodiment of the present application is as follows: the wear-resistant steel ball falls from the drop pipe 3 and hits the impact force sensor 4, and then the wear-resistant steel ball rebounds into the partition tube 61, and the blocking drive source 622 causes the blocking plate 623 to block the bottom end of the partition tube 61. The moving component 7 moves the partition tube 61 to dock with the guide groove body 51, and the blocking drive source 622 causes the blocking plate 623 to open the bottom end of the partition tube 61, and the wear-resistant steel ball falls into the guide groove body 51, and the shooting module 100 shoots and records the image of the wear-resistant steel ball, the rejection component 9 rejects the unqualified wear-resistant steel ball, and the push component 8 pushes the wear-resistant steel ball into the return channel 52, and the wear-resistant steel ball enters the lifting mechanism 2 from the return channel 52, and the lifting mechanism 2 transports the wear-resistant steel ball to the drop pipe 3, thereby realizing the continuous drop test.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A wear-resistant steel ball continuous drop test device, characterized in that: The invention comprises a frame (1), a lifting mechanism (2), a drop pipe (3), an impact force sensor (4), a conveying channel (5), a partition mechanism (6) and a moving assembly (7), wherein the lifting mechanism (2) is connected to the frame (1), the drop pipe (3) and the conveying channel (5) are respectively connected to two ends of the lifting mechanism (2), and the lifting mechanism (2) conveys the wear-resistant steel balls in the conveying channel (5) into the drop pipe (3); the impact force sensor (4) is connected to the frame (1), the drop pipe (3) is vertically arranged, and the drop pipe (3) faces the impact force sensor (4); The partition mechanism (6) comprises a partition tube (61) and a bottom end plugging assembly (62), wherein the partition tube (61) is located between the drop pipe (3) and the impact force sensor (4); the moving assembly (7) is connected to the frame (1), and the moving assembly (7) drives the partition tube (61) to move, so that the partition tube (61) is respectively connected to the drop pipe (3) and the conveying channel (5); and the bottom end plugging assembly (62) is used to open and close the bottom end of the partition tube (61).

2. A wear-resistant steel ball continuous drop test device according to claim 1, characterized in that: The bottom end blocking component (62) comprises a support box (621), a blocking drive source (622) and a blocking plate (623); the support box (621) is connected to the separation tube (61); the blocking drive source (622) is connected to the support box (621); the blocking drive source (622) drives the blocking plate (623) to move, so that the blocking plate (623) blocks the bottom end of the separation tube (61).

3. A wear-resistant steel ball continuous drop test device according to claim 2, characterized in that: The bottom end blocking component (62) further comprises a slider (624) and a slide rail (625); the slide rail (625) is connected to the support box (621); the slider (624) is slidably connected to the slide rail (625); the blocking plate (623) is connected to the slider (624); and the blocking drive source (622) drives the slider (624) to slide along the slide rail (625).

4. A wear-resistant steel ball continuous drop test device according to claim 2, characterized in that: A supporting ring groove is provided at the bottom end of the separation tube (61); when the blocking plate (623) blocks the bottom end of the separation tube (61), the blocking plate (623) is engaged with the supporting ring groove.

5. The wear-resistant steel ball continuous drop test device according to claim 1, characterized in that: The separation tube (61) is sleeved with an electromagnetic coil (63), and the electromagnetic coil (63) is used to slow down the rebound speed of the wear-resistant steel ball in the separation tube (61).

6. The wear-resistant steel ball continuous drop test device according to claim 1, characterized in that: A plurality of the partitioning mechanisms (6) are provided, and a plurality of the conveying channels (5) are correspondingly provided. Adjacent partitioning mechanisms (6) are connected, and the moving assembly (7) drives the plurality of partitioning mechanisms (6) to move.

7. The wear-resistant steel ball continuous drop test device according to claim 1, characterized in that: The conveying channel (5) comprises a guide groove body (51) and a return channel (52); the guide groove body (51) is in communication with the return channel (52); the return channel (52) is in communication with the lifting mechanism (2); the guide groove body (51) is used for docking with the partition tube (61); a push-in assembly (8) is provided on the frame (1); the push-in assembly (8) is used for pushing the wear-resistant steel ball in the guide groove body (51) into the return channel (52).

8. The wear-resistant steel ball continuous drop test device according to claim 7, characterized in that: The push-in assembly (8) comprises a push-in drive source (81) and a push block (82); the push-in drive source (81) is connected to the guide groove body (51), and the push block (82) is connected to the push-in drive source (81); the push-in drive source (81) drives the push block (82) to move, so that the push block (82) pushes the wear-resistant steel ball in the guide groove body (51) into the reflux channel (52).

9. The wear-resistant steel ball continuous drop test device according to claim 7, characterized in that: The frame (1) is provided with a shooting module (100) and a rejection component (9), wherein the shooting module (100) shoots images of the wear-resistant steel balls in the guide slot (51), and the rejection component (9) is used to remove unqualified wear-resistant steel balls in the guide slot (51).

10. The wear-resistant steel ball continuous drop test device according to claim 9, characterized in that: The rejecting assembly (9) comprises a movable slide (91) and a clamp (92), wherein the movable slide (91) is connected to the frame (1), and the clamp (92) is connected to the movable slide (91), and the movable slide (91) drives the clamp (92) to move on a plane, and the clamp (92) is used to clamp the wear-resistant steel ball.

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