Wear-resistant steel ball production process and surface treatment equipment thereof

Abstract

The invention discloses a wear-resistant steel ball production process and surface treatment equipment thereof, and belongs to the technical field of wear-resistant balls, and the wear-resistant steel ball production process comprises the following steps: step 1, weighing raw materials, smelting the raw materials, and casting into a continuous casting billet; (2) the continuous casting billet obtained in the step (1) is placed in a steel rolling heating furnace to be heated to 1120-1250 DEG C, heat preservation and thorough burning are conducted, and then the continuous casting billet enters a continuous rolling unit to be rolled into a round steel bar; 3, the round steel bar is sent to a heating furnace to be heated to 1030 DEG C to 1100 DEG C, heat preservation is conducted, the round steel bar is taken out of the furnace after thorough burning, then the round steel bar is rolled into steel balls on a ball rolling machine, and the rolling temperature is 940 DEG C to 960 DEG C; 4, the steel balls with the waste heat enter a quenching water tank along a roller way to be subjected to water-cooling quenching, and the water entering temperature of the steel balls during quenching is 830-860 DEG C; and 5, tempering is conducted after quenching of the steel ball, the tempering temperature ranges from 160 DEG C to 200 DEG C, surface treatment is conducted after cooling, and finally the high-abrasion-resistance steel ball is obtained. The wear-resistant steel ball is high in production efficiency and high in quality; and the steel balls are uniform, high in core hardness, low in breakage rate and excellent in wear resistance.

Description

Technical Field

[0001] The present invention relates to the technical field of wear-resistant balls, and particularly relates to a production process of wear-resistant steel balls and a surface treatment device therefor. Background Art

[0002] Wear-resistant steel balls, also known as wear-resistant media for grinders, are consumables. Their main use is to grind materials to make them finer to meet the usage standards. They are mainly used in fields such as mines, power plants, cement plants, steel plants, and coal chemical industries, and the annual demand is very large.

[0003] Currently, some steel balls have low core hardness, are easy to break, and have poor wear resistance. At the same time, automated surface treatment cannot be carried out.

[0004] Based on this, the present invention designs a production process of wear-resistant steel balls and a surface treatment device to solve the above problems. Summary of the Invention

[0005] In view of the above-mentioned drawbacks of the prior art, the present invention provides a production process of wear-resistant steel balls and a surface treatment device therefor.

[0006] To achieve the above object, the present invention is realized through the following technical solutions:

[0007] A production process of wear-resistant steel balls includes the following steps:

[0008] Step 1: Weigh the raw materials, smelt the raw materials and cast them into continuous casting billets;

[0009] Step 2: Place the continuous casting billet obtained in Step 1 in a rolling heating furnace, heat it to 1120 - 1250 °C, hold it for complete penetration, and then enter a continuous rolling mill to be rolled into round steel bars;

[0010] Step 3: Send the round steel bars to a heating furnace, heat them to 1030 - 1100 °C, hold them for complete penetration, then take them out of the furnace, and then roll them into steel balls on a ball rolling machine. The rolling temperature is 940 - 960 °C;

[0011] Step 4: Send the steel balls with residual heat along the roller path into a quenching water tank for water cooling quenching. When quenching, the water inlet temperature of the steel balls is 830 - 860 °C;

[0012] Step 5: After quenching, the steel balls are tempered. The tempering temperature is 160 - 200 °C. After cooling, surface treatment is carried out through surface treatment, and finally high wear-resistant steel balls are obtained.

[0013] High wear-resistant steel balls, the chemical composition of the raw materials is calculated by mass percentage as follows: C: 0.85 - 0.93%, Si: 0.10 - 0.19%, Mn: 0.85 - 1.03%, P 0.023 - 0.030%, S 0.018 - 0.024%, Cr: 0.35 - 0.45%, Ti: 0.01 - 0.015%, Ni 0.12 - 0.25%, and the balance is Fe and inevitable impurity elements.

[0014] A surface treatment device for a wear-resistant steel ball production process, including an equiangular rotation assembly. The rotation end of the equiangular rotation assembly is provided with first straight holes at equal intervals along the circumferential direction.

[0015] The rotation end of the equiangular rotation assembly is connected with a support carrier for supporting wear-resistant steel balls at the top of the first straight holes.

[0016] The side wall of the equiangular rotation assembly is connected with a feeding assembly for feeding and an upper and lower end synchronous grinding assembly for grinding wear-resistant steel balls. The upper and lower end synchronous grinding assembly is also connected with an unlocking assembly for unlocking the support carrier. When the support carrier contacts the unlocking assembly at the grinding position and the discharging position, the support carrier is in an unlocked state and the support carrier does not vertically limit the wear-resistant steel balls. During grinding, the support carrier contacts the upper and lower ends of the wear-resistant steel balls. When the support carrier does not contact the unlocking assembly, the support carrier vertically limits the wear-resistant steel balls.

[0017] Furthermore, the equiangular rotation assembly includes a motor and a first turntable. The driving end of the motor is fixedly installed with a first turntable. The first turntable is provided with first straight holes at equal intervals along the circumferential direction. The support carrier is fixedly installed on the first turntable.

[0018] Furthermore, the support carrier includes a support block, a second wedge block, a spring, a straight block, a second straight hole, an upper circular plate, a lower circular plate, a second slider, a second guide rail and a sliding rod. The side walls at both ends of the upper circular plate are fixedly connected with support blocks. The support blocks are fixedly connected with the first turntable. The second guide rail is fixedly installed on the inner wall of the support block. The second slider is slidably connected with the second guide rail in a limiting manner. The lower circular plate is fixedly connected between the second sliders. Both the lower circular plate and the upper circular plate are provided with second straight holes. One side wall of the lower circular plate is fixedly connected with a second wedge block. The other side wall of the lower circular plate is fixedly connected with a sliding rod. The outer end of the sliding rod is fixedly connected with the outer end of the spring. The inner end of the spring is fixedly connected with the straight block. And the straight block is fixedly installed on the first turntable. The sliding hole opened in the straight block is in sliding fit with the sliding rod. When the unlocking assembly contacts the sliding rod, the second straight hole of the lower circular plate completely coincides with the second straight hole of the upper circular plate. When the unlocking assembly does not contact the sliding rod, the second straight hole of the lower circular plate is misaligned with the second straight hole of the upper circular plate.

[0019] Furthermore, the diameter of the second straight hole is larger than the diameter of the wear-resistant steel ball.

[0020] Further, the feeding component includes a second support frame, a rotating feeding component, and a material distributing component. The top of the second support frame is connected with the rotating feeding component and the material distributing component. The rotating feeding component rotates along the central axis of the upper circular plate, and the rotating feeding component is connected with the material distributing component.

[0021] Further, the rotating feeding component includes a third gear ring, a third motor, a straight cylinder, a fourth gear ring, and an S-shaped pipe. The third motor is fixedly installed at the inner top of the transverse part of the second support frame. The driving end of the second support frame is fixedly connected with a third gear ring. The third gear ring is meshed and connected with the third motor. The upright part at the upper end of the S-shaped pipe is installed in the fourth gear ring. The top of the S-shaped pipe is rotationally connected with the bottom of the straight cylinder through a bearing. The straight cylinder is fixedly connected with the transverse part of the second support frame. The straight cylinder is coaxially arranged with the lower circular plate at the feeding position. The straight cylinder is connected with the material distributing component. The discharge port of the S-shaped pipe is located above the second straight hole opened on the lower circular plate.

[0022] Further, the material distributing component includes a cylinder, a first baffle, a second baffle, and a connecting block. The cylinder is fixedly installed at the top of the transverse part of the second support frame. The driving end of the cylinder is fixedly connected with the connecting block. The upper end of the connecting block is fixedly connected with a first baffle. The lower end of the connecting block is fixedly connected with a second baffle. The first baffle and the second baffle are arranged oppositely. When the first baffle is separated from the wear-resistant steel ball above it, the second baffle is located in the straight cylinder. When the second baffle is separated from the wear-resistant steel ball below it, the first baffle is in contact with the wear-resistant steel ball above it. The distance between the bottom of the first baffle and the top of the second baffle is the diameter size of the wear-resistant steel ball.

[0023] The first motor of the scraper is arranged staggeredly with the second motor of the steel needle.

[0024] Further, the depth adjustment component includes a first cross plate of the second support frame, a guide rail component first wedge block, a second cross plate of the hydraulic cylinder, a connecting cross plate, a top plate, and a side plate. The first cross plate of the second support frame is fixedly installed at the top of the equal-angle rotation component of the first support frame. The side wall of the installation groove at the upper end of the first cross plate of the second support frame is fixedly connected with the guide rail of the guide rail component first wedge block. The slider of the guide rail component first wedge block is fixedly connected with the side plate. The top of the side plate is fixedly connected with the connecting cross plate. The top plate is fixedly installed at the top of the first cross plate of the second support frame. The second cross plate of the hydraulic cylinder is fixedly installed at the top of the top plate. The driving end of the second cross plate of the hydraulic cylinder is fixedly connected with the connecting cross plate.

[0025] Furthermore, the double-position driving assembly includes a crankshaft, a sliding plate, a guide rod, a second pulley assembly, a first connecting plate, a second motor, a third pulley assembly and a second connecting plate. The second motor is fixedly installed on the top of the connecting cross plate. The output end of the second motor is connected to a group of crankshafts through the third pulley assembly. A group of crankshafts is connected to another group of crankshafts through the second pulley assembly. The crankshaft is rotatably connected to the side plate through a bearing. A second connecting plate is rotatably connected to the bent part of the crankshaft. The bottom of the second connecting plate is rotatably connected to the first connecting plate. The first connecting plate is fixedly installed on the top of the sliding plate. Both ends of the sliding plate are slidably connected to the guide rod in a limited manner, and the guide rod is fixedly installed on the inner wall of the first cross plate of the second support frame.

[0026] Furthermore, the quick-release raising component includes a mounting plate, a needle, a connecting shaft, a baffle, a limiting slot, a limiting plug and a connecting seat. A limiting slot is opened at the front end of the sliding plate. A limiting plug is inserted into the limiting slot in a limited manner. The bottom of the limiting plug is fixedly connected to the mounting plate. Needles are evenly connected to the bottom of the mounting plate. A connecting seat is fixedly connected to the top of the opening end of the limiting slot of the sliding plate. The connecting seat is fixedly connected to the connecting shaft. The connecting shaft is rotatably connected to the limiting slot. The inner wall of the limiting slot is in sliding connection with the outer side wall of the limiting plug in a fitting manner.

[0027] Beneficial effects

[0028] The wear-resistant steel balls of the present invention not only have high production efficiency, but also have high steel ball quality; and the steel balls are uniform, with high hardness at the core, low breakage rate and excellent wear resistance.

[0029] The equal-angle rotation assembly of the present invention drives the empty support carrier to rotate to the feeding position of the feeding assembly for processing. The feeding assembly fills the support carrier with wear-resistant steel balls, and the support carrier vertically limits the wear-resistant steel balls. The support carrier filled with wear-resistant steel balls rotates to the grinding position. The unlocking assembly contacts the support carriers at the grinding position and the discharging position. The support carriers at the grinding position and the discharging position do not vertically limit the wear-resistant steel balls. The unlocking assembly contacts the upper and lower ends of the wear-resistant steel balls at the grinding position in a fitting manner. The unlocking assembly grinds the wear-resistant steel balls. The wear-resistant steel balls in the support carrier at the discharging position are discharged from the first straight hole at the discharging position by their own gravity, realizing automatic feeding, automatic grinding and automatic discharging, realizing automatic surface treatment. At the same time, feeding, grinding and discharging can be operated simultaneously, and the overall working efficiency is high. Description of the drawings

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0031] Figure 1 Three-dimensional view of the surface treatment equipment for the production process of wear-resistant steel balls of the present invention Figure 1 ;

[0032] Figure 2 Front view of the surface treatment equipment for the production process of wear-resistant steel balls of the present invention;

[0033] Figure 3 Top view of the surface treatment equipment for the production process of wear-resistant steel balls of the present invention;

[0034] Figure 4 Three-dimensional view of the surface treatment equipment for the production process of wear-resistant steel balls of the present invention Figure 2 ;

[0035] Figure 5 Is the sectional view along the A-A direction of Figure 3 ;

[0036] Figure 6 Three-dimensional view of the upper and lower end face synchronous grinding assembly Figure 1 ;

[0037] Figure 7 Three-dimensional view of the upper and lower end face synchronous grinding assembly Figure 2 ;

[0038] Figure 8 Partial sectional view of the straight cylinder and its connection structure;

[0039] Figure 9 Is Figure 5 Enlarged view of the structure at B;

[0040] The reference numerals in the figure respectively represent:

[0041] 1. Equal-angle rotation assembly 11. Motor 12. First turntable 2. First straight hole 3. Upper and lower end face synchronous grinding assembly 31. Symmetric threaded rod 32. First guide rail 33. First slider 34. First support frame 35. First motor 36. Second motor 37. Cross plate 38. Polygonal rod 39. First gear ring 310. First straight shaft 311. Second straight shaft 312. Disc 313. Synchronous belt assembly 314. Second gear ring 315. Second turntable 316. Grinding sand disc 4. Unlocking assembly 41. First cross plate 42. First wedge block 43. Second cross plate 5. Feeding assembly 51. Second support frame 52. Third gear ring 53. Third motor 54. Cylinder 55. Straight cylinder 56. Fourth gear ring 57. S-shaped pipe 58. First baffle 59. Second baffle 510. Connecting block 6. Support carrier 61. Support block 62. Second wedge block 63. Spring 64. Straight block 65. Second straight hole 66. Upper circular plate 67. Lower circular plate 68. Second slider 69. Second guide rail 610. Slide bar. Detailed implementation manners

[0042] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0043] The following further describes the present invention in conjunction with embodiments.

[0044] The "left", "right", "front", "rear", "upper", and "lower" mentioned in the following description are oriented in the perspective direction of the front view.

[0045] Embodiment 1

[0046] This embodiment discloses a production process for wear-resistant steel balls, including the following steps:

[0047] Step 1: Weigh the raw materials, smelt the raw materials, and cast them into continuous casting billets;

[0048] Step 2: Place the continuous casting billet obtained in Step 1 in a rolling mill heating furnace, heat it to 1120°C, hold it for complete penetration, and then enter a continuous rolling mill to roll it into round steel bars;

[0049] Step 3: Send the round steel bars to a heating furnace, heat them to 1070°C, hold them for complete penetration, then take them out of the furnace, and then roll them into steel balls on a ball rolling machine, with a rolling temperature of 950°C;

[0050] Step 4: Send the steel balls with residual heat along the roller path into a quenching water tank for water cooling quenching, with the water inlet temperature of the steel balls during quenching being 845°C;

[0051] Step 5: After quenching the steel balls, perform tempering at a tempering temperature of 190°C. After cooling, perform surface treatment through surface treatment, and finally obtain high wear-resistant steel balls.

[0052] The chemical composition of the raw materials is as follows by mass percentage: C: 0.93%, Si: 0.10%, Mn: 1.03%, P 0.027%, S 0.018%, Cr: 0.45%, Ti: 0.010%, Ni 0.22%, and the balance is Fe and inevitable impurity elements.

[0053] Embodiment 2

[0054] This embodiment discloses a production process for wear-resistant steel balls, including the following steps:

[0055] Step 1: Weigh the raw materials, smelt the raw materials, and cast them into continuous casting billets;

[0056] Step 2: The continuous casting billet obtained in Step 1 is placed in a steel rolling heating furnace, heated to 1250 °C, held until thoroughly burned through, and then enters a continuous rolling mill to be rolled into round steel bars;

[0057] Step 3: The round steel bars are sent to a heating furnace, heated to 1030 °C, held until thoroughly burned through, then taken out of the furnace, and then rolled into steel balls on a ball rolling machine, with the rolling temperature being 940 °C;

[0058] Step 4: The steel balls with residual heat enter a quenching water tank along a roller path for water cooling quenching, and the water inlet temperature of the steel balls during quenching is 860 °C;

[0059] Step 5: After quenching, the steel balls are tempered at a tempering temperature of 200 °C. After cooling, surface treatment is carried out through surface treatment, and finally high-wear-resistant steel balls are obtained.

[0060] The chemical composition of the raw materials is as follows by mass percentage: C: 0.85%, Si: 0.17%, Mn: 0.85%, P 0.030%, S 0.022%, Cr: 0.35%, Ti: 0.015%, Ni 0.12%, and the balance is Fe and unavoidable impurity elements.

[0061] Example 3

[0062] This example discloses a production process of wear-resistant steel balls, including the following steps:

[0063] Step 1: Weigh the raw materials, and the raw materials are smelted and cast into continuous casting billets;

[0064] Step 2: The continuous casting billet obtained in Step 1 is placed in a steel rolling heating furnace, heated to 1180 °C, held until thoroughly burned through, and then enters a continuous rolling mill to be rolled into round steel bars;

[0065] Step 3: The round steel bars are sent to a heating furnace, heated to 1100 °C, held until thoroughly burned through, then taken out of the furnace, and then rolled into steel balls on a ball rolling machine, with the rolling temperature being 960 °C;

[0066] Step 4: The steel balls with residual heat enter a quenching water tank along a roller path for water cooling quenching, and the water inlet temperature of the steel balls during quenching is 830 °C;

[0067] Step 5: After quenching, the steel balls are tempered at a tempering temperature of 160 °C. After cooling, surface treatment is carried out through surface treatment, and finally high-wear-resistant steel balls are obtained.

[0068] The chemical composition of the raw materials is as follows by mass percentage: C: 0.89%, Si: 0.19%, Mn: 0.92%, P 0.030%, S 0.024%, Cr: 0.38%, Ti: 0.013%, Ni 0.25%, and the balance is Fe and unavoidable impurity elements.

[0069] The wear-resistant steel balls not only have high production efficiency, but also have relatively high quality; the steel balls are uniform, with high hardness at the core, low breakage rate, and excellent wear resistance.

[0070] Example 4

[0071] Please refer to Figures 1-9 , this embodiment discloses a surface treatment device for a wear-resistant steel ball production process, including an equiangular rotation assembly 1. The rotation end of the equiangular rotation assembly 1 is provided with first straight holes 2 at equal intervals along the circumferential direction;

[0072] The rotation end of the equiangular rotation assembly 1 is connected with a support carrier 6 for supporting the wear-resistant steel balls at the top of the first straight holes 2;

[0073] The side wall of the equiangular rotation assembly 1 is connected with a feeding assembly 5 for feeding and an upper and lower end synchronous grinding assembly 3 for grinding the wear-resistant steel balls. The upper and lower end synchronous grinding assembly 3 is also connected with an unlocking assembly 4 for unlocking the support carrier 6. When the support carrier 6 at the grinding position and the discharging position contacts the unlocking assembly 4, the support carrier 6 is in an unlocked state and the support carrier 6 does not vertically limit the wear-resistant steel balls. During grinding, the support carrier 6 contacts the upper and lower ends of the wear-resistant steel balls. When the support carrier 6 does not contact the unlocking assembly 4, the support carrier 6 vertically limits the wear-resistant steel balls.

[0074] The equiangular rotation assembly 1 drives the empty support carrier 6 to rotate to the feeding position of the feeding assembly 5 for processing. The feeding assembly 5 fills the support carrier 6 with wear-resistant steel balls, and the support carrier 6 vertically limits the wear-resistant steel balls. The support carrier 6 filled with wear-resistant steel balls rotates to the grinding position. The unlocking assembly 4 contacts the support carrier 6 at the grinding position and the discharging position. The support carrier 6 at the grinding position and the discharging position does not vertically limit the wear-resistant steel balls. The unlocking assembly 4 contacts and fits with the upper and lower ends of the wear-resistant steel balls at the grinding position. The unlocking assembly 4 grinds the wear-resistant steel balls. The wear-resistant steel balls in the support carrier 6 at the discharging position are discharged from the first straight holes 2 at the discharging position by their own gravity, realizing automatic feeding, automatic grinding, and automatic discharging, achieving automatic surface treatment. At the same time, feeding, grinding, and discharging can be operated simultaneously, and the overall working efficiency is high.

[0075] The equiangular rotation assembly 1 includes a motor 11 and a first turntable 12. The driving end of the motor 11 is fixedly installed with the first turntable 12. The first turntable 12 is provided with first straight holes 2 at equal intervals along the circumferential direction. The support carrier 6 is fixedly installed on the first turntable 12.

[0076] The motor 11 of the equiangular rotation assembly 1 drives the first turntable 12, and the first turntable 12 drives the support carrier 6 and the first straight holes 2 to rotate at equal angles.

[0077] The support carrier 6 includes a support block 61, a second wedge block 62, a spring 63, a straight block 64, a second straight hole 65, an upper circular plate 66, a lower circular plate 67, a second slider 68, a second guide rail 69, and a slide rod 610. At both ends of the side wall of the upper circular plate 66, there are fixedly connected support blocks 61, and the support blocks 61 are fixedly connected to the first turntable 12. The second guide rail 69 is fixedly installed on the inner wall of the support block 61. The second slider 68 is slidably connected to the second guide rail 69 in a limited manner. A lower circular plate 67 is fixedly connected between the second sliders 68. Both the lower circular plate 67 and the upper circular plate 66 are provided with second straight holes 65. On one side wall of the lower circular plate 67, there is fixedly connected a second wedge block 62. On the other side wall of the lower circular plate 67, there is fixedly connected a slide rod 610. The outer end of the slide rod 610 is fixedly connected to the outer end of the spring 63. The inner end of the spring 63 is fixedly connected to the straight block 64, and the straight block 64 is fixedly installed on the first turntable 12. The slide hole opened in the straight block 64 is in sliding fit with the slide rod 610. When the unlocking assembly 4 contacts the slide rod 610, the second straight hole 65 of the lower circular plate 67 completely coincides with the second straight hole 65 of the upper circular plate 66. When the unlocking assembly 4 does not contact the slide rod 610, the second straight hole 65 of the lower circular plate 67 is misaligned with the second straight hole 65 of the upper circular plate 66;

[0078] The diameter of the second straight hole 65 is larger than the diameter of the wear-resistant steel ball.

[0079] The support block 61 is located outside the first straight hole 2.

[0080] When the unlocking assembly 4 contacts the slide rod 610 of the support carrier 6 and the spring 63 is in a stretched state, the slide rod 610 pushes the lower circular plate 67 to move under the cooperation of the second slider 68 and the second guide rail 69, and the second straight hole 65 of the lower circular plate 67 is pushed to completely coincide with the second straight hole 65 of the upper circular plate 66. The wear-resistant steel ball can rotate in the second straight hole 65 of the lower circular plate 67 and the second straight hole 65 of the upper circular plate 66. At the grinding position, the upper and lower ends of the wear-resistant steel ball are convenient to contact the unlocking assembly 4. The unlocking assembly 4 grinds the wear-resistant steel ball simultaneously from above and below, improving the grinding efficiency. At the blanking position, the wear-resistant steel ball in the second straight hole 65 is discharged from the first straight hole 2 at the blanking position by its own gravity, realizing automatic blanking.

[0081] When the unlocking assembly 4 does not contact the slide rod 610 of the support carrier 6, the spring 63 returns to its original state. The second straight hole 65 of the lower circular plate 67 is misaligned with the second straight hole 65 of the upper circular plate 66. The lower circular plate 67 supports the wear-resistant steel ball in the second straight hole 65 of the upper circular plate 66, providing horizontal limit for the wear-resistant steel ball and facilitating the rotational support of the wear-resistant steel ball.

[0082] The feeding assembly 5 includes a second support frame 51, a rotating feeding assembly, and a material distributing assembly. At the top of the second support frame 51, there are connected a rotating feeding assembly and a material distributing assembly. The rotating feeding assembly rotates along the central axis of the upper circular plate 66, and the rotating feeding assembly is connected to the material distributing assembly.

[0083] The rotating feeding assembly includes a third gear ring 52, a third motor 53, a straight tube 55, a fourth gear ring 56 and an S-shaped tube 57. The third motor 53 is fixedly installed at the inner top of the horizontal part of the second support frame 51. The driving end of the third motor 53 is fixedly connected with the third gear ring 52. The third gear ring 52 is meshed with the fourth gear ring 56. The upright part at the upper end of the S-shaped tube 57 is installed in the fourth gear ring 56. The top of the S-shaped tube 57 is rotationally connected with the bottom of the straight tube 55 through a bearing. The straight tube 55 is fixedly connected with the horizontal part of the second support frame 51. The straight tube 55 is coaxially arranged with the lower circular plate 67 at the feeding position. The straight tube 55 is connected with the material distribution assembly. The discharge port of the S-shaped tube 57 is located above the second straight hole 65 opened on the lower circular plate 67.

[0084] The material distribution assembly includes a cylinder 54, a first baffle 58, a second baffle 59 and a connecting block 510. The cylinder 54 is fixedly installed at the top of the horizontal part of the second support frame 51. The driving end of the cylinder 54 is fixedly connected with the connecting block 510. The upper end of the connecting block 510 is fixedly connected with the first baffle 58. The lower end of the connecting block 510 is fixedly connected with the second baffle 59. The first baffle 58 and the second baffle 59 are arranged oppositely. When the first baffle 58 is separated from the wear-resistant steel ball above it, the second baffle 59 is located in the straight tube 55. When the second baffle 59 is separated from the wear-resistant steel ball below it, the first baffle 58 contacts the wear-resistant steel ball above it. The distance between the bottom of the first baffle 58 and the top of the second baffle 59 is the diameter size of the wear-resistant steel ball.

[0085] When the equal-angle rotating assembly 1 drives the empty support carrier 6 to rotate to the feeding position, the third motor 53 of the rotating feeding assembly of the feeding assembly 5 drives the third gear ring 52 to rotate. The third gear ring 52 drives the third motor 53 to rotate. The fourth gear ring 56 drives the S-shaped tube 57 to rotate. The fourth gear ring 56 rotates the discharge to above the second straight hole 65. The cylinder 54 drives the connecting block 510 to move towards the cylinder 54. The connecting block 510 drives the first baffle 58 and the second baffle 59 to move towards the cylinder 54 until the first baffle 58 is separated from the wear-resistant steel ball above it. At the same time, the connecting block 510 is located in the straight tube 55. The wear-resistant steel ball above the first baffle 58 falls onto the second baffle 59. The cylinder 54 drives the connecting block 510 to move in the direction away from the cylinder 54. The connecting block 510 drives the first baffle 58 and the second baffle 59 to move away from the cylinder 54 until the first baffle 58 contacts the wear-resistant steel ball above it. At the same time, the second baffle 59 is separated from the wear-resistant steel ball below it. The wear-resistant steel ball below the first baffle 58 falls into the second straight hole 65 of the lower circular plate 67 through the S-shaped tube 57. Then repeat the above actions until all the second straight holes 65 on the lower circular plate 67 at the feeding position are filled, realizing automatic feeding.

[0086] The upper and lower end surface synchronous grinding assembly 3 includes a synchronous adjustment component and a double-sided grinding component. The synchronous adjustment component is located on one side of the first turntable 12. The synchronous adjustment component is connected to the double-sided grinding component. The double-sided grinding component contacts the upper and lower ends of the wear-resistant steel ball. The unlocking component 4 is connected to the synchronous adjustment component.

[0087] The synchronous adjustment component includes a symmetric threaded rod 31, a first guide rail 32, a first slider 33, a first support frame 34, and a first motor 35. The side wall of the first support frame 34 is fixedly connected with the first guide rail 32. The first motor 35 is fixedly installed on the top of the first support frame 34. The driving end of the first motor 35 is fixedly connected with the symmetric threaded rod 31. The symmetric threaded rod 31 is symmetrically thread-connected with a cross plate 37. The cross plate 37 is fixedly connected with a first slider 33 that is limited and slidably connected to the first guide rail 32 on the side wall close to the first support frame 34. And the first support frame 34 and the cross plate 37 are connected to the double-sided grinding component.

[0088] The cross plate 37 at the upper end is connected to the unlocking component 4.

[0089] The symmetric threaded rod 31 is rotatably connected to the first support frame 34 through a bearing.

[0090] The double-sided grinding component includes a second motor 36, a cross plate 37, a polygonal rod 38, a first gear ring 39, a first straight shaft 310, a second straight shaft 311, a disc 312, a synchronous belt assembly 313, a second gear ring 314, a second turntable 315, and a grinding sand disc 316. The second motor 36 is fixedly installed on the top of the first support frame 34. The second motor 36 is rotationally connected with the polygonal rod 38. The top of the cross plate 37 at the lower end is rotatably connected to the first gear ring 39 through a bearing. The bottom of the cross plate 37 at the upper end is rotatably connected to the second turntable 315 through a bearing. Both the second turntable 315 and the first gear ring 39 are in sliding fit with the polygonal rod 38 through sliding holes. The first gear ring 39 is meshed and connected with the second gear ring 314. The first straight shaft 310 is installed in the installation hole opened in the second gear ring 314. The first straight shaft 310 is rotatably connected to the cross plate 37 at the lower end through a bearing. Both the first straight shaft 310 and the second turntable 315 are fixedly connected with a set of belt pulleys of the synchronous belt assembly 313. The other set of belt pulleys of the synchronous belt assembly 313 is fixedly connected with the second straight shaft 311. The second straight shaft 311 is rotatably connected to the cross plate 37. The bottom of the second straight shaft 311 at the upper end and the top of the second straight shaft 311 at the lower end are both fixedly connected with a disc 312. The bottom of the disc 312 at the upper end and the top of the disc 312 at the lower end are both fixedly connected with a grinding sand disc 316.

[0091] And the number of teeth of the first gear ring 39 is greater than the number of teeth of the second gear ring 314.

[0092] The polygonal rod 38 is rotatably connected to the first support frame 34 through a bearing.

[0093] During grinding, the first motor 35 drives the symmetric threaded rod 31 to rotate. Under the cooperation of the first slider 33 and the first guide rail 32, the cross plate 37 moves towards each other. The cross plate 37 at the upper end drives the unlocking component 4 to contact the second wedge-shaped block 62, aligning the second straight hole 65 of the lower circular plate 67 with the second straight hole 65 of the upper circular plate 66. Then, the cross plate 37 continues to drive the grinding sand disk 316 to contact the upper and lower ends of the wear-resistant steel ball at the grinding position. The second motor 36 drives the polygonal rod 38 to rotate. The polygonal rod 38 drives the first gear ring 39 and the second turntable 315. The first gear ring 39 drives the second gear ring 314 to rotate. The second gear ring 314 drives the first straight shaft 310 to rotate. Both the first straight shaft 310 and the second turntable 315 drive the second straight shaft 311 to rotate through the synchronous belt assembly 313. The second straight shaft 311 drives the disk 312 to rotate. The disk 312 drives the grinding sand disk 316 to rotate. Since the first gear ring 39 and the second gear ring 314 cooperate to adjust the rotation direction of the lower second straight shaft 311 to be opposite to that of the upper second straight shaft 311, the rotation directions of the two groups of grinding sand disks 316 are realized. The grinding sand disks 316 rotating in opposite directions help drive the wear-resistant steel ball to rotate. At the same time, since the number of teeth of the first gear ring 39 is greater than that of the second gear ring 314, differential rotation of the two groups of grinding sand disks 316 is achieved, further improving the grinding effect of the wear-resistant steel ball.

[0094] The unlocking component 4 includes a first cross plate 41, a first wedge-shaped block 42, and a second cross plate 43. The side walls at the upper ends of the cross plates 37 at the upper end are fixedly connected to the first cross plate 41 and the second cross plate 43. Both the first cross plate 41 and the second cross plate 43 are fixedly connected with first wedge-shaped blocks 42 that cooperate with the second straight hole 65.

[0095] The cross plate 37 at the upper end moves downward. The cross plate 37 at the upper end drives the first cross plate 41 and the second cross plate 43 to move downward. Both the first cross plate 41 and the second cross plate 43 drive the first wedge-shaped block 4 to move downward. The first wedge-shaped block 42 connected to the second cross plate 43 contacts the second wedge-shaped block 62 at the grinding position, pushing the second straight hole 65 of the lower circular plate 67 at the feeding position and the second straight hole 65 of the upper circular plate 66, which can prevent the lower circular plate 67 from affecting the rotation of the wear-resistant steel ball. The first wedge-shaped block 42 connected to the first cross plate 41 contacts the second wedge-shaped block 62 at the discharging position, pushing the second straight hole 65 of the lower circular plate 67 at the discharging position and the second straight hole 65 of the upper circular plate 66. The wear-resistant steel ball can automatically fall through the second straight hole 65 of the lower circular plate 67, realizing automatic feeding.

[0096] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A production process of wear-resistant steel balls, characterized in that, It includes the following steps: Step 1: Weigh the raw materials, smelt the raw materials and cast them into continuous casting billets. Step 2: Place the continuous casting billet obtained in Step 1 in a rolling heating furnace, heat it to 1120 - 1250 °C, keep it warm and burn it through, and then enter a continuous rolling mill to roll it into round steel bars. Step 3: Send the round steel bars to a heating furnace, heat them to 1030 - 1100 °C, keep them warm and burn them through, then take them out of the furnace, and then roll them into steel balls on a ball rolling machine, and the rolling temperature is 940 - 960 °C. Step 4: Send the steel balls with residual heat along the roller path into a quenching water tank for water cooling quenching, and the water inlet temperature of the steel balls during quenching is 830 - 860 °C. Step 5: After the steel balls are quenched, they are tempered, the tempering temperature is 160 - 200 °C, and after cooling, surface treatment is carried out through surface treatment, and finally high wear-resistant steel balls are obtained.

2. The high wear-resistant steel ball according to claim 1, wherein: The chemical composition of the raw materials is calculated by mass percentage as follows: C: 0.85 - 0.93%, Si: 0.10 - 0.19%, Mn: 0.85 - 1.03%, P 0.023 - 0.030%, S 0.018 - 0.024%, Cr: 0.35 - 0.45%, Ti: 0.01 - 0.015%, Ni 0.12 - 0.25%, and the balance is Fe and unavoidable impurity elements.

3. A surface treatment device for the production of wear-resistant steel balls according to claim 1, comprising an equiangular rotation assembly (1), characterized in that: The rotating end of the equal-angle rotating assembly (1) is provided with first straight holes (2) at equal intervals along the circumferential direction. At the top of the first straight holes (2) on the rotating end of the equal-angle rotating assembly (1), a support carrier (6) for supporting wear-resistant steel balls is connected. The side wall of the equal-angle rotating assembly (1) is connected with a feeding assembly (5) for feeding and an upper and lower end synchronous grinding assembly (3) for grinding wear-resistant steel balls. The upper and lower end synchronous grinding assembly (3) is also connected with an unlocking assembly (4) for unlocking the support carrier (6). When the support carrier (6) is in contact with the unlocking assembly (4) at the grinding position and the discharging position, the support carrier (6) is in an unlocked state and the support carrier (6) does not vertically limit the wear-resistant steel balls. During grinding, the support carrier (6) contacts the upper and lower ends of the wear-resistant steel balls. When the support carrier (6) is not in contact with the unlocking assembly (4), the support carrier (6) vertically limits the wear-resistant steel balls.

4. The surface treatment equipment for producing wear-resistant steel balls according to claim 3, characterized in that, The equal-angle rotating assembly (1) includes a motor (11) and a first turntable (12). The driving end of the motor (11) is fixedly installed with a first turntable (12). The first turntable (12) is provided with first straight holes (2) at equal intervals along the circumferential direction, and the support carrier (6) is fixedly installed on the first turntable (12).

5. The surface treatment equipment for producing wear-resistant steel balls according to claim 4, characterized in that, The support vehicle (6) includes a support block (61), a second wedge block (62), a spring (63), a straight block (64), a second straight hole (65), an upper circular plate (66), a lower circular plate (67), a second slider (68), a second guide rail (69) and a slide rod (610). Support blocks (61) are fixedly connected to the side walls at both ends of the upper circular plate (66). The support blocks (61) are fixedly connected to the first turntable (12). The second guide rail (69) is fixedly installed on the inner wall of the support block (61). The second slider (68) is connected to the second guide rail (69) in a limiting sliding manner. A lower circular plate (67) is fixedly connected between the second sliders (68). Both the lower circular plate (67) and the upper circular plate (66) are provided with second straight holes (65). A second wedge block (62) is fixedly connected to one side wall of the lower circular plate (67). A slide rod (610) is fixedly connected to the other side wall of the lower circular plate (67). The outer end of the slide rod (610) is fixedly connected to the outer end of the spring (63). The inner end of the spring (63) is fixedly connected to the straight block (64). And the straight block (64) is fixedly installed on the first turntable (12). The slide hole opened in the straight block (64) is in sliding fit connection with the slide rod (610). When the unlocking assembly (4) contacts the slide rod (610), the second straight holes (65) of the lower circular plate (67) and the upper circular plate (66) are completely coincident. When the unlocking assembly (4) does not contact the slide rod (610), the second straight holes (65) of the lower circular plate (67) and the upper circular plate (66) are offset.

6. The surface treatment equipment for producing wear-resistant steel balls according to claim 5, characterized in that, The diameter of the second straight hole (65) is larger than the diameter of the wear-resistant steel ball.

7. The surface treatment equipment for the production of wear-resistant steel balls according to claim 6, characterized in that, The feeding assembly (5) includes a second support frame (51), a rotating feeding assembly and a material distributing assembly. The top of the second support frame (51) is connected with the rotating feeding assembly and the material distributing assembly. The rotating feeding assembly rotates along the central axis of the upper circular plate (66). The rotating feeding assembly is connected with the material distributing assembly.

8. The surface treatment equipment for the production of wear-resistant steel balls according to claim 7, characterized in that, The rotating feeding assembly includes a third gear ring (52), a third motor (53), a straight cylinder (55), a fourth gear ring (56) and an S-shaped pipe (57). The third motor (53) is fixedly installed on the inner top of the transverse part of the second support frame (51). The driving end of the second support frame (51) is fixedly connected with a third gear ring (52). The third gear ring (52) is meshed and connected with the third motor (53). The upper upright part of the S-shaped pipe (57) is installed in the fourth gear ring (56). The top of the S-shaped pipe (57) is rotationally connected with the bottom of the straight cylinder (55) through a bearing. The straight cylinder (55) is fixedly connected with the transverse part of the second support frame (51). The straight cylinder (55) is coaxially arranged with the lower circular plate (67) at the feeding position. The straight cylinder (55) is connected with the material distributing assembly. The discharge port of the S-shaped pipe (57) is located above the second straight hole (65) opened in the lower circular plate (67).

9. The surface treatment equipment for the production of wear-resistant steel balls according to claim 8, characterized in that, The material distribution component includes a cylinder (54), a first baffle (58), a second baffle (59), and a connecting block (510). The cylinder (54) is fixedly installed at the top of the lateral part of the second support frame (51). The driving end of the cylinder (54) is fixedly connected to the connecting block (510). The upper end of the connecting block (510) is fixedly connected to the first baffle (58), and the lower end of the connecting block (510) is fixedly connected to the second baffle (59). The first baffle (58) and the second baffle (59) are arranged oppositely. When the first baffle (58) is separated from the wear-resistant steel ball above it, the second baffle (59) is located inside the straight cylinder (55). When the second baffle (59) is separated from the wear-resistant steel ball below it, the first baffle (58) contacts the wear-resistant steel ball above it. The distance between the bottom of the first baffle (58) and the top of the second baffle (59) is the diameter size of the wear-resistant steel ball.

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