A continuous drop test device for wear-resistant steel balls

Abstract

The present application provides a continuous dropping test device for wear-resistant steel balls, which includes a frame, a lifting mechanism, a dropping pipeline, an impact force sensor, a conveying channel, a separating mechanism and a moving component. The lifting mechanism is connected to the frame. The dropping pipeline and the conveying channel are respectively communicated with both ends of the lifting mechanism. The lifting mechanism conveys the wear-resistant steel balls in the conveying channel into the dropping pipeline. The impact force sensor is connected to the frame. The separating mechanism includes a separating pipe and a bottom end plugging component. The separating pipe is located between the dropping pipeline and the impact force sensor. The moving component is connected to the frame, and the moving component drives the separating pipe to move so that the separating pipe is respectively docked with the dropping pipeline and the conveying channel. The bottom end plugging component is used to open and close the bottom end of the separating pipe. The present application can improve the influence of the rebound of the wear-resistant steel balls on the test results and reduce the additional wear of the impact force sensor caused by the rebound of the wear-resistant steel balls.

Description

Technical Field

[0001] This application relates to the technical field of steel ball drop tests, and particularly to a continuous drop test device for wear-resistant steel balls. Background Art

[0002] Wear-resistant steel balls are a kind of grinding medium used in ball mills, mainly for grinding materials to meet the usage 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, etc. Wear-resistant steel balls have high hardness, high wear resistance, high strength, and good anti-wear performance. Wear-resistant steel balls are widely used in industries such as metallurgy and mining, cement building materials, thermal power generation, chemical industry, water coal slurry, pellet ore, slag, ultrafine powder, fly ash, calcium carbonate, and quartz sand. In these industries, wear-resistant steel balls are used in grinding mills for grinding operations to achieve the purpose of grinding.

[0003] After the production of wear-resistant steel balls is completed, a wear-resistant steel ball drop test device is generally used to test the performance of wear-resistant steel balls. The wear-resistant steel ball drop test device in the related technology 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 communicated with 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 communicated with the bottom end of the drop pipe and the lifting mechanism respectively. The lifting mechanism transports the wear-resistant steel balls in the conveying channel into the drop pipe, and the wear-resistant steel balls freely fall in the drop pipe until they hit the impact force sensor. The impact force sensor can detect and record the impact force generated by the wear-resistant steel balls. Subsequently, the wear-resistant steel balls flow back into the lifting mechanism through the conveying channel, so that repeated drop tests can be carried out on the wear-resistant steel balls, and the conditions such as surface scratches, depressions, and surface spots of the wear-resistant steel balls can be observed during the drop test to evaluate the performance of the wear-resistant steel balls.

[0004] The wear-resistant steel balls will rebound after hitting the impact force sensor. Due to certain differences between individuals during the production of wear-resistant steel balls, the rebound height and the number of rebounds will also be different, thus affecting the consistency and accuracy of the detection. Moreover, since the wear-resistant steel balls will rebound multiple times during one drop, the wear-resistant steel balls 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 influence of the rebound of wear-resistant steel balls on the test results and reduce the additional wear of the rebound of wear-resistant steel balls on the impact force sensor, this application provides a continuous drop test device for wear-resistant steel balls.

[0006] This application provides a continuous drop test device for wear-resistant steel balls, adopting the following technical solutions:

[0007] A continuous drop test device for wear-resistant steel balls, comprising a frame, a lifting mechanism, a drop pipe, an impact force sensor, a conveying channel, a separating mechanism and a moving component. The lifting mechanism is connected to the frame. The drop pipe 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 drop pipe. The impact force sensor is connected to the frame. The drop pipe is vertically arranged and faces the impact force sensor.

[0008] The separating mechanism includes a separating pipe and a bottom sealing component. The moving component is connected to the frame. The separating pipe is located between the drop pipe and the impact force sensor. The moving component drives the separating pipe to move, so that the separating pipe is respectively docked with the drop pipe and the conveying channel. The bottom sealing component is used to open and close the bottom end of the separating pipe.

[0009] By adopting the above technical solution, during the dropping process of the wear-resistant steel ball, after hitting the impact force sensor, it rebounds into the separating pipe. Subsequently, the bottom sealing component seals the bottom end of the separating pipe, so that the wear-resistant steel balls are temporarily stored in the separating pipe, reducing the additional wear of the impact force sensor caused by multiple rebounds of the wear-resistant steel balls, and also improving the consistency and accuracy of the impact force sensor for detecting the wear-resistant steel balls. Subsequently, the moving component drives the separating pipe to be docked with the conveying channel, and the bottom sealing component opens the bottom end of the separating pipe to release the wear-resistant steel balls into the conveying channel. The wear-resistant steel balls enter the lifting mechanism along the conveying channel and can perform repeated drop tests.

[0010] Optionally, the bottom sealing component includes a support box, a sealing driving source and a sealing plate. The support box is connected to the separating pipe. The sealing driving source is connected to the support box. The sealing driving source drives the sealing plate to move, so that the sealing plate seals the bottom end of the separating pipe.

[0011] By adopting the above technical solution, when the wear-resistant steel ball rebounds into the separating pipe, the sealing driving source drives the sealing plate to move, so that the sealing plate seals the bottom end of the separating pipe, and the wear-resistant steel ball finally falls back onto the sealing plate, so that the sealing plate bears the wear-resistant steel ball.

[0012] Optionally, the bottom sealing component 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 sealing plate is connected to the slider. The sealing driving source drives the slider to slide along the slide rail.

[0013] By adopting the above technical solution, the cooperation of the slider and the slide rail enables the sealing plate to move stably along a predetermined path, ensuring that the sealing plate seals or opens the bottom end of the separating pipe, and improving the reliability and stability of the sealing plate during the moving process.

[0014] Optionally, a support ring groove is formed at the bottom end of the partition pipe. When the plugging plate plugs the bottom end of the partition pipe, the plugging plate is clamped with the support ring groove.

[0015] By adopting the above technical solution, when the plugging plate plugs the bottom end of the partition pipe, the plugging plate is clamped with the support ring groove, improving the stability of the force on the plugging plate.

[0016] Optionally, an electromagnetic coil is sleeved on the partition pipe, and the electromagnetic coil is used to slow down the rebounding speed of the wear-resistant steel ball in the partition pipe.

[0017] By adopting the above technical solution, when the wear-resistant steel ball rebounds in the partition pipe, the electromagnetic coil is turned on, making the moving speed of the wear-resistant steel ball in the partition pipe slower, reducing the impact force of the wear-resistant steel ball on the plugging plate and also reducing the additional wear of the wear-resistant steel ball.

[0018] Optionally, a plurality of partition mechanisms are provided, and a plurality of corresponding conveying channels are provided. Adjacent partition mechanisms are connected, and the moving component drives the plurality of partition mechanisms to move.

[0019] By adopting the above technical solution, setting a plurality of partition mechanisms and corresponding conveying channels can achieve alternating operation and improve the detection efficiency of the wear-resistant steel balls.

[0020] Optionally, the conveying channel includes a guiding groove body and a return channel. The guiding groove body is communicated with the return channel, the return channel is communicated with the lifting mechanism, the guiding groove body is used to be butted with the partition pipe, and a pushing component is arranged on the frame. The pushing component is used to push the wear-resistant steel ball in the guiding groove body into the return channel.

[0021] By adopting the above technical solution, after the partition pipe is butted with the guiding groove body, the wear-resistant steel ball enters the guiding groove body, the pushing component pushes the wear-resistant steel ball into the return channel, and the wear-resistant steel ball enters the lifting mechanism along the return channel, realizing a continuous drop test.

[0022] Optionally, the pushing component includes a pushing driving source and a pushing block. The pushing driving source is connected with the guiding groove body, and the pushing block is connected with the pushing driving source; the pushing driving source drives the pushing block to move, so that the pushing block pushes the wear-resistant steel ball in the guiding groove body into the return channel.

[0023] By adopting the above technical solution, the pushing driving source drives the pushing block to move, smoothly pushing the wear-resistant steel ball in the guiding groove body into the return channel. When the wear-resistant steel ball is in the guiding groove body, it is convenient to observe the damaged condition of the wear-resistant steel ball after impact.

[0024] Optionally, a photographing module and a rejecting component are arranged on the rack. The photographing module photographs an image of the wear-resistant steel balls in the guiding groove body, and the rejecting component is used to move the unqualified wear-resistant steel balls in the guiding groove body out.

[0025] By adopting the above technical solution, during the process of the wear-resistant steel balls moving in the guiding groove body, the photographing module can photograph the images of the wear-resistant steel balls, ensuring that the surface conditions of each wear-resistant steel ball can be recorded. For unqualified wear-resistant steel balls, the rejecting component promptly removes the unqualified wear-resistant steel balls, improving the detection efficiency.

[0026] Optionally, the rejecting component includes a moving slide and a clamping jaw. The moving slide is connected to the rack, the clamping jaw is connected to the moving slide, the moving slide drives the clamping jaw to move on a plane, and the clamping jaw is used to clamp the wear-resistant steel balls.

[0027] By adopting the above technical solution, the moving slide drives the clamping jaw to move on a vertical plane, which can control the position of the clamping jaw so that the clamping jaw reaches the designated position. Subsequently, the clamping jaw clamps the wear-resistant steel balls, and finally the moving slide and the clamping jaw drive the wear-resistant steel balls out of the guiding groove body, enabling the timely removal of unqualified wear-resistant steel balls and improving the detection efficiency.

[0028] In summary, the present application includes at least the following beneficial effects:

[0029] 1. After the wear-resistant steel ball rebounds into the partition pipe after hitting the impact force sensor, the bottom plugging component plugs the bottom end of the partition pipe, so that the wear-resistant steel ball is temporarily stored in the partition pipe, reducing the additional wear of the impact force sensor caused by the multiple rebounds of the wear-resistant steel ball; subsequently, the moving component drives the partition pipe to be docked with the conveying channel, and the bottom plugging component opens the bottom end of the partition pipe to release the wear-resistant steel ball into the conveying channel, and the wear-resistant steel ball enters the lifting mechanism along the conveying channel, enabling repeated drop tests;

[0030] 2. The moving component drives multiple partition mechanisms to be alternately docked with the drop pipe. When one partition mechanism stores the wear-resistant steel balls, the other partition mechanisms can release the wear-resistant steel balls into the guiding groove body, improving the detection efficiency of the wear-resistant steel balls;

[0031] 3. The arrangement of the photographing module and the rejecting component can photograph and inspect the state of the wear-resistant steel balls in real time during the test, promptly discover and remove unqualified wear-resistant steel balls, and further improve the effectiveness and reliability of the test data. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is the overall structural schematic diagram of the continuous drop test device for wear-resistant steel balls in the embodiment of the present application;

[0033] Figure 2This is a schematic diagram of the structure of the embodiment of the present application without the lifting mechanism;

[0034] Figure 3 It 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;

[0035] 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.

[0036] 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

[0037] The following combination Figures 1 to 4 This application is described in further detail.

[0038] An embodiment of the present application provides a wear-resistant steel ball continuous drop test device.

[0039] 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.

[0040] 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.

[0041] refer to Figure 2 andFigure 3 The separating mechanism 6 includes a separating pipe 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 separating pipe 61 is fixedly connected to the connecting rod 71, and the moving module 72 can drive the separating pipe 61 to move through the connecting rod 71. The separating pipe 61 can be docked and communicated with the dropping pipe 3.

[0042] Reference Figure 2 and Figure 3 The support box 621 is fixedly connected to the side wall of the separating pipe 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 plugging driving source 622 is specifically an electric push rod. The plugging driving source 622 is fixedly connected to the support box 621, and the moving end of the plugging driving source 622 is fixedly connected to the slider 624. The plugging driving source 622 drives the slider 624 to slide along the slide rail 625.

[0043] Reference Figure 2 and Figure 3 The plugging plate 623 is fixedly connected to the slider 624. The plugging plate 623 is horizontally arranged. The slider 624 drives the plugging plate 623 to move, so that the plugging plate 623 opens and closes the bottom end of the separating pipe 61. A support ring groove is provided at the bottom end of the separating pipe 61. The plugging plate 623 can be clamped in the support ring groove, and the support ring groove can improve the force stability of the plugging plate 623 when it is located at the bottom end of the separating pipe 61.

[0044] Reference Figure 2 and Figure 3 The wear-resistant steel ball drops from the dropping pipe 3. After the wear-resistant steel ball impacts the impact force sensor 4, it will rebound. The impact force sensor 4 detects the data of the impact of the wear-resistant steel ball. Subsequently, the plugging driving source 622 drives the plugging plate 623 to move through the slider 624, so that the plugging plate 623 plugs the bottom end of the separating pipe 61, and the wear-resistant steel ball finally falls back onto the plugging plate 623.

[0045] Reference Figure 2 and Figure 3 The plugging plate 623 is made of a flexible material, which can reduce the number of rebounds of the wear-resistant steel ball on the plugging plate 623 and also reduce the wear on the wear-resistant steel ball. The electromagnetic coil 63 is wound around the outside of the separating pipe 61. When the wear-resistant steel ball rebounds into the separating pipe 61, the electromagnetic coil 63 is started, and the electromagnetic coil 63 can reduce the moving speed of the wear-resistant steel ball in the separating pipe 61, which is beneficial to the wear-resistant steel ball falling back onto the plugging plate 623.

[0046] Reference Figure 1 and Figure 2, the conveying channel 5 includes a guiding trough body 51 and a reflux channel 52. There are two guiding trough bodies 51, both of which are communicated with the reflux channel 52, and the reflux channel 52 is communicated with the lifting mechanism 2.

[0047] Reference Figure 1 and Figure 2 , in this embodiment, there are two separating mechanisms 6. A connecting plate 64 is fixedly connected between the two separating pipes 61. The two separating mechanisms 6 correspond to the two guiding trough bodies 51 one by one. The moving assembly 7 enables the two separating pipes 61 to be respectively butted with the two guiding trough bodies 51, and enables the separating pipes 61 of the two separating mechanisms 6 to be alternately butted with the dropping pipeline 3, thereby improving the detection efficiency.

[0048] Reference Figure 2 and Figure 4 , a pushing assembly 8, a rejecting assembly 9 and a photographing module 100 are arranged on the frame 1. The pushing assembly 8 includes a pushing driving source 81 and a pushing block 82. The pushing driving source 81 is specifically an electric push rod. The pushing driving source 81 is connected to the frame 1, and the pushing block 82 is fixedly connected to the moving end of the pushing driving source 81. Both the guiding trough body 51 and the reflux channel 52 are inclined. When the wear-resistant steel ball moves in the guiding trough body 51 under the action of gravity to a position close to the pushing block 82, the pushing driving source 81 drives the pushing block 82 to move, so that the pushing block 82 pushes the wear-resistant steel ball in the guiding trough body 51 into the reflux channel 52, and the wear-resistant steel ball enters the lifting mechanism 2 along the reflux channel 52.

[0049] Reference Figure 2 and Figure 4 , the photographing module 100 is connected to the frame 1. There are multiple photographing modules 100. The multiple photographing modules 100 can photograph the images of the wear-resistant steel ball in the guiding trough body 51 and transmit the images back to the background, so as to facilitate the staff to view and record the appearance quality of the wear-resistant steel ball after impact.

[0050] Reference Figure 2 and Figure 4 , the rejecting assembly 9 includes a moving slide 91 and a clamping jaw 92. In this embodiment, the moving slide 91 is specifically a two-axis linear module, and the clamping jaw 92 is specifically an electric clamping jaw. The moving slide 91 is fixedly connected to the frame 1, and the clamping jaw 92 is fixedly connected to the moving end of the moving slide 91. The moving slide 91 can drive the clamping jaw 92 to move in the vertical plane, and the clamping jaw 92 can clamp the wear-resistant steel ball, so as to remove the unqualified wear-resistant steel balls in the guiding trough body 51, thereby timely rejecting the unqualified wear-resistant steel balls.

[0051] The implementation principle of a continuous drop test device for wear-resistant steel balls in an embodiment of this application is as follows: The wear-resistant steel balls fall from the drop pipe 3 and impact the impact force sensor 4. Subsequently, the wear-resistant steel balls rebound into the partition pipe 61, and the plugging drive source 622 causes the plugging plate 623 to plug the bottom end of the partition pipe 61. The moving assembly 7 moves the partition pipe 61 to be docked with the guiding groove body 51. The plugging drive source 622 causes the plugging plate 623 to open the bottom end of the partition pipe 61. The wear-resistant steel balls fall into the guiding groove body 51. The shooting module 100 shoots and records the images of the wear-resistant steel balls. The rejection assembly 9 rejects the unqualified wear-resistant steel balls. The pushing assembly 8 pushes the wear-resistant steel balls into the return channel 52. The wear-resistant steel balls enter the lifting mechanism 2 from the return channel 52, and the lifting mechanism 2 conveys the wear-resistant steel balls into the drop pipe 3, thus realizing the continuous drop test.

[0052] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this 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); the bottom end plugging assembly (62) is used to open and close the bottom end of the partition tube (61); 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).

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 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).

8. The wear-resistant steel ball continuous drop test device according to claim 1, 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).

9. The wear-resistant steel ball continuous drop test device according to claim 8, 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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