Ball mill capable of grinding various powder materials

Abstract

The invention relates to the field of ball mills for powder grinding, in particular to a ball mill capable of achieving grinding of multiple kinds of powder, which comprises a support cylinder, a ball milling cylinder is rotatably connected in the support cylinder, a belt driver is movably connected between the left end of the ball milling cylinder and the surface of the support cylinder, and the ball mill further comprises a filter ring, and the filter ring is movably connected to the right side of the inner wall of the ball milling cylinder. According to the ball mill capable of realizing grinding of various powder materials, through cooperative use of a filtering ring, an adjusting disc, a ball changing mechanism and other parts, when sticky materials are ground and a ball pasting phenomenon occurs, a transmission motor is started to drive the ball changing mechanism to operate, and large grinding balls at the position of a fine grinding cavity of a ball milling barrel are guided into the positions of corresponding arc-shaped ball storage sleeves; and the small grinding balls are conveyed to the fine grinding chamber of the ball-milling cylinder, and grading is optimized by reducing the large grinding balls and increasing the small grinding balls, so that the grinding capacity is balanced, the phenomenon of ball pasting is effectively reduced, and the processing quality is improved.

Description

Technical Field

[0001] This invention relates to the field of ball mills for powder grinding, specifically to ball mills capable of grinding multiple types of powders. Background Technology

[0002] Ball mills are key equipment for further pulverizing materials after they have been crushed. They are widely used in coal-fired power plants, cement, silicate industry, new building materials, refractory materials, fertilizers, non-ferrous metal ore beneficiation, and glass and ceramics production industries.

[0003] The following problems exist in the existing technology that have not been well resolved: 1. During the grinding of viscous materials, the grinding balls in the ball mill may become mushy. In actual operation, the problem is usually reduced by decreasing the number of large grinding balls and increasing the number of small grinding balls to change the ratio. However, in the operation of the existing ball mill, the number of grinding balls needs to be adjusted after the machine is stopped. During the shutdown process, abnormal movement and gradation of the grinding balls may occur, and material agglomeration may also occur, affecting the processing quality. It is difficult to adjust the number of grinding balls in the existing ball mill while it is in operation. Summary of the Invention

[0004] The purpose of this invention is to provide a ball mill capable of grinding multiple types of powders, thereby solving the problems mentioned in the background art: 1. Existing ball mill mechanisms have difficulty adjusting the number of grinding balls during operation, affecting processing quality. To achieve the above objective, this invention provides the following technical solution: a ball mill capable of grinding multiple types of powders, comprising a support cylinder, a grinding cylinder rotatably connected inside the support cylinder, and a belt drive movably connected between the left end of the grinding cylinder and the surface of the support cylinder;

[0005] It also includes: a filter ring, which is movably connected to the right side of the inner wall of the ball mill cylinder, and a ball changing mechanism is movably connected between the surface of the filter ring and the surface of the support cylinder. The ball changing mechanism is used to replace the grinding balls inside the ball mill cylinder.

[0006] A discharge bracket is movably connected to the bottom right side of the support cylinder, and a vibration mechanism is movably connected to the surface of the discharge bracket. The vibration mechanism is used to reduce the occurrence of material sticking to the conveyor belt.

[0007] Preferably, the ball-changing mechanism includes: an adjusting disc, rotatably connected to the inner ring of the filter ring;

[0008] An electric push rod has an adjustment disc fixedly connected to its left end and a rotatable connection to the surface of the support cylinder at its right end.

[0009] An adjusting ring is slidably sleeved on the surface of an electric push rod, and a connecting rod is hinged to the outer ring of the adjusting ring.

[0010] One end of the connecting rod is hinged to an adjusting plate, and the adjusting plate has symmetrical adjusting grooves on its surface.

[0011] The movable groove is formed on the surface of the adjustment plate and cooperates with the adjustment plate.

[0012] Multiple sets of L-shaped positioning rods, two in each set, are slidably connected in the movable groove and slidably inserted into the adjustment grooves of adjacent adjustment plates respectively;

[0013] An arc-shaped guide plate is fixedly connected to the left side of the filter ring and cooperates with the L-shaped positioning rod.

[0014] The L-shaped ball guide tube is fixedly connected to the upper part of the filter ring and cooperates with the arc-shaped guide plate;

[0015] A pair of ball delivery tubes are symmetrically and fixedly connected to the lower right side of the filter ring;

[0016] A pair of arc-shaped ball storage sleeves are fixedly connected to the right end of each ball conveying tube;

[0017] The main guide plate and the secondary guide plate are fixedly connected to the upper part of the front and rear arc-shaped ball storage sleeves, respectively, and cooperate with the L-shaped ball guide tube.

[0018] A drive motor is installed between the middle of two arc-shaped ball storage sleeves, and a drive disc is installed on the movable end of the drive motor. A pressure rod is movably installed on the surface of the drive disc.

[0019] The ball-carrying spring rod is movably inserted into the lower right side of the arc-shaped ball storage sleeve;

[0020] The wedge-shaped plate is slidably connected between the lower parts of the two arc-shaped ball storage sleeves and cooperates with the ball delivery spring rod and the pressure rod.

[0021] Preferably, the surface of the electric push rod is provided with a groove, and an electric telescopic rod is fixedly connected inside the groove. Rectangular blocks are symmetrically fixedly connected to the inner ring of the adjusting ring. The two rectangular blocks are slidably disposed inside the two grooves respectively, and one end of the electric telescopic rod is fixedly connected to the side wall of the rectangular block.

[0022] Preferably, there are eight connecting rods, which are equidistantly hinged around the outer ring of the adjusting ring, and the number of adjusting plates is the same as the number of connecting rods.

[0023] Eight sets of L-shaped positioning rods are provided, and each of the eight sets of L-shaped positioning rods corresponds to one of the eight adjustment plates.

[0024] The L-shaped positioning rod is fixedly connected to a diagonal rod on the side near the arc-shaped guide plate, and a diagonal pad is fixedly connected to the end of the L-shaped positioning rod away from the adjustment plate. A wedge-shaped unloading plate that cooperates with the diagonal rod is fixedly connected to the front end of the lower part of the arc-shaped guide plate.

[0025] Preferably, a main gear is fixedly connected to the rotating end of the drive motor, and a driven gear is fixedly sleeved on the surface of the electric push rod, with the top of the main gear meshing with the bottom of the driven gear;

[0026] A one-way bearing is fixedly connected between the rotating end of the drive motor and the inner ring of the drive disc. A hinge rod is hinged to the right side of the drive disc, and the top of the pressure rod is hinged to the bottom of the hinge rod.

[0027] A guide ring is movably sleeved in the middle of the pressure rod, and the side wall of the guide ring is fixedly connected to the side wall of the arc-shaped ball storage sleeve. A retaining ring is fixedly sleeved in the upper part of the pressure rod, and a compression spring is fixedly connected between the bottom of the retaining ring and the top of the guide ring.

[0028] Preferably, an electric telescopic rod is fixedly connected to the end of the ball-carrying spring rod, and slots that cooperate with the electric telescopic rod are provided on both sides of the wedge-shaped plate;

[0029] Both sides of the wedge-shaped card plate are fixedly connected to sliders, and the lower parts of the two arc-shaped ball storage sleeves are fixedly connected to slide rods. The two sliders are respectively slidably disposed on the surfaces of the two slide rods, and a return spring is movably sleeved on the surface of the slide rod.

[0030] The ball conveying tube and the ball conveying spring rod on the same side are on the same axis. A groove is provided between the ball conveying tube and the inner wall of the filter ring. A wedge-shaped baffle is slidably provided on the inner wall of the groove. A push spring is fixedly connected between the end of the wedge-shaped baffle and the inner wall of the groove.

[0031] Preferably, the vibration mechanism includes a conveyor belt, which is rotatably disposed at the lower part of the unloading bracket. An anti-overflow plate is overlapped on the top of the conveyor belt, and the top of the anti-overflow plate is movably inserted into the surface of the unloading bracket. A guide wheel is rotatably connected to the side wall of the unloading bracket, and the surface of the guide wheel is spirally provided with protrusions that cooperate with the conveyor belt.

[0032] Preferably, the belt drive consists of a support rod, a pulley, and a belt drive motor. The support rod is fixedly connected to the left end of the ball mill cylinder, and the pulley is fixedly connected to the left end of the support rod.

[0033] The main support is fixedly connected to the left side of the support cylinder, the drive motor is fixedly installed on the surface of the main support, and a synchronous belt is movably installed between the drive motor and the pulley.

[0034] The top of the main support is provided with a feed trough that cooperates with the ball mill cylinder. A gear rod is rotatably connected inside the feed trough. A scraper that cooperates with the feed trough is fixedly connected to the surface of the gear rod. A rack rod is slidably arranged on the right side of the main support. The side wall of the rack rod meshes with the surface of the gear rod. An arc-shaped block that cooperates with the rack rod is fixedly connected to the right side of the pulley.

[0035] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0036] In this invention, by using the filter ring, adjusting plate, and ball changing mechanism in combination, when grinding viscous materials and causing ball clogging, the drive motor is started to drive the ball changing mechanism to guide the large grinding balls in the fine grinding chamber of the ball mill into the corresponding arc-shaped ball storage sleeve, and to deliver small grinding balls into the fine grinding chamber of the ball mill. By reducing the number of large grinding balls and increasing the number of small grinding balls, the gradation is optimized to balance the grinding capacity, effectively reducing the occurrence of ball clogging and improving the processing quality.

[0037] In this invention, by using components such as an electric push rod, a filter ring, and a ball changing mechanism in combination, the electric push rod drives the filter ring and the adjusting plate to move inside the ball mill cylinder, thereby controlling the size of the fine grinding chamber space of the ball mill cylinder, and the ball changing mechanism controls the proportion of grinding balls. This enables effective ball milling even with a small amount of material, reduces the occurrence of grinding balls running idle, and improves processing efficiency.

[0038] In this invention, through the combined use of components such as the support cylinder, the unloading bracket, and the vibration mechanism, the vibration mechanism on the unloading bracket drives the conveyor belt to vibrate during the process of the material being discharged from the right side of the support cylinder after grinding, thereby reducing the occurrence of material sticking. At the same time, the cooperation between the vibrating conveyor belt and the anti-overflow plate can prevent the material from overflowing. Attached Figure Description

[0039] Figure 1 This is a perspective view of the support cylinder and belt drive of the present invention;

[0040] Figure 2 This is a cross-sectional view of a portion of the support cylinder and the ball mill cylinder of the present invention;

[0041] Figure 3 This is a cross-sectional view of a portion of the ball mill cylinder and filter ring of the present invention;

[0042] Figure 4 This is a left view showing a partial position of the filter ring and adjusting disc of the present invention;

[0043] Figure 5 This is a perspective view of the adjusting disc and electric push rod of the present invention;

[0044] Figure 6 This is a cross-sectional view of a portion of the adjusting disc and the L-shaped positioning rod of the present invention;

[0045] Figure 7 For the present invention Figure 6 Enlarged view of the structure at point A in the middle;

[0046] Figure 8 This is a perspective view of the arc-shaped guide plate of the present invention;

[0047] Figure 9 This is a cross-sectional view of a portion of the filter ring and the ball delivery tube of the present invention;

[0048] Figure 10 This is a perspective view of a portion of the filter ring and the arc-shaped ball storage sleeve of the present invention;

[0049] Figure 11 For the present invention Figure 10 Enlarged view of the structure at point B;

[0050] Figure 12 This is a cross-sectional view of a portion of the arc-shaped ball storage sleeve and the ball delivery tube of the present invention;

[0051] Figure 13 For the present invention Figure 12 Enlarged view of the structure at point C;

[0052] Figure 14 This is a perspective view of the positions of the main guide plate and the secondary guide plate of the present invention;

[0053] Figure 15 This is a cross-sectional view of a portion of the unloading bracket and spill prevention plate of the present invention;

[0054] Figure 16 This is a perspective view of the guide wheel and protrusion of the present invention;

[0055] Figure 17 This is a perspective view of the L-shaped positioning rod of the present invention;

[0056] Figure 18 This is a top sectional view of a portion of the belt drive and support cylinder of the present invention;

[0057] Figure 19 For the present invention Figure 18 Enlarged view of the structure at point D;

[0058] Figure 20 This is a perspective view of a portion of the L-shaped positioning rod and filter ring of the present invention.

[0059] In the diagram: 1. Support cylinder; 2. Grinding cylinder; 3. Belt driver; 4. Filter ring; 5. Ball changing mechanism; 501. Adjusting disc; 502. Electric push rod; 503. Adjusting ring; 504. Connecting rod; 505. Adjusting plate; 506. Adjusting groove; 507. Movable groove; 508. L-shaped positioning rod; 509. Arc-shaped guide plate; 510. L-shaped ball guide tube; 511. Ball conveying tube; 512. Arc-shaped ball storage sleeve; 513. Main guide plate; 514. Secondary guide plate; 515. Drive motor; 516. Drive disc; 517. Pressure rod; 518. Ball conveying spring rod; 519. Wedge-shaped clamping plate; 6. Unloading bracket; 7. Vibration mechanism; 701. Conveyor belt; 702. Overflow plate; 703. Guide wheel; 704. Protrusion. Detailed Implementation

[0060] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0061] Please see Figures 1 to 20 This invention provides a technical solution: a ball mill capable of grinding various types of powders, comprising a support cylinder 1, a ball milling cylinder 2 rotatably connected inside the support cylinder 1, and a belt drive 3 movably connected between the left end of the ball milling cylinder 2 and the surface of the support cylinder 1. It should be noted that the ball milling cylinder 2 is rotated inside the support cylinder 1 by the belt drive 3 to perform ball milling.

[0062] It also includes a filter ring 4, which is movably connected to the right side of the inner wall of the ball mill cylinder 2. A ball changing mechanism 5 is movably connected between the surface of the filter ring 4 and the surface of the support cylinder 1. The ball changing mechanism 5 is used to replace the grinding balls inside the ball mill cylinder 2. It should be noted that a coarse filter plate is fixedly installed on the left side of the inner wall of the ball mill cylinder 2, so that the chamber on the left side of the ball mill cylinder 2 performs coarse grinding, and the filtered material is introduced into the chamber on the right side of the ball mill cylinder 2 for fine grinding through the coarse filter plate. The filter ring 4 filters the finely ground material. The above-mentioned multi-stage filtration method is existing technology and will not be described in detail here.

[0063] A discharge bracket 6 is movably connected to the bottom right side of the support cylinder 1. A vibration mechanism 7 is movably connected to the surface of the discharge bracket 6. The vibration mechanism 7 is used to reduce the occurrence of material sticking to the conveyor belt 701. It should be noted that this device is suitable for grinding sticky materials through the cooperation of the vibration mechanism 7 and the ball changing mechanism 5.

[0064] In this embodiment, as Figures 1 to 20As shown, the ball-changing mechanism 5 includes an adjusting plate 501, which is rotatably connected to the inner ring of the filter ring 4. An electric push rod 502 is fixedly connected to the right side of the adjusting plate 501. The right end of the electric push rod 502 is rotatably connected to the surface of the support cylinder 1. An adjusting ring 503 is slidably sleeved on the surface of the electric push rod 502. A connecting rod 504 is hinged to the outer ring of the adjusting ring 503. An adjusting plate 505 is hinged to one end of the connecting rod 504. Adjusting grooves 506 are symmetrically opened on the surface of the adjusting plate 505. It should be noted that: the outer ring of the filter ring 4 is fixedly connected to a connecting bearing, and the outer ring of the connecting bearing is fixedly fitted with a sealing ring. The sealing ring overlaps the inner wall of the ball mill cylinder 2. The electric push rod 502 can move the adjusting plate 501 and the filter ring 4 inside the ball mill cylinder 2 to control the size of the fine grinding chamber of the ball mill cylinder 2. At the same time, with the cooperation of the ball changing mechanism 5, it can perform effective ball milling with a small amount of material, thereby improving processing efficiency. A U-shaped guide block is fixedly connected to the surface of the adjusting plate 501. One end of the adjusting plate 505 is slidably set inside the U-shaped guide block. The number of grinding balls inside the ball mill cylinder 2 can be monitored by a sensor. This technology is existing technology and will not be described in detail. A mounting bearing is fixedly connected between the right end of the electric push rod 502 and the inner wall of the support cylinder 1.

[0065] The surface of the adjustment plate 501 is provided with a movable groove 507 that cooperates with the adjustment plate 505. The movable groove 507 is symmetrically slidably connected with an L-shaped positioning rod 508. The two L-shaped positioning rods 508 are slidably connected inside two adjacent adjustment grooves 506 respectively. The left side of the filter ring 4 is fixedly connected with an arc-shaped guide plate 509 that cooperates with the L-shaped positioning rod 508. It should be noted that: a movable plate is fixedly connected to the middle of the L-shaped positioning rod 508, and the L-shaped positioning rod 508 is slidably set inside the movable groove 507 through the movable plate. The movable groove 507 has a stepped cross-section. When the movable plate slides inside the movable groove 507, it can seal the port of the movable groove 507 to prevent material from entering the movable groove 507. When the adjusting plate 505 moves with the connecting rod 504, the adjusting groove 506 and the L-shaped positioning rod 508 slide together, so that the two L-shaped positioning rods 508 can move relative to each other or away from each other, controlling the distance between the two L-shaped positioning rods 508, thereby guiding the grinding balls of the corresponding size to the position of the arc-shaped guide plate 509. In addition, the grinding chamber is more prone to ball clogging. By changing the grinding ball ratio, the occurrence of ball clogging can be effectively reduced. Furthermore, a connecting block is fixedly connected to the surface of the arc-shaped guide plate 509, and the arc-shaped guide plate 509 is fixedly connected to the side wall of the filter ring 4 through the connecting block.

[0066] The upper part of the filter ring 4 is fixedly connected to an L-shaped ball guide tube 510 that cooperates with the arc-shaped guide plate 509. The lower part of the right side of the filter ring 4 is symmetrically fixedly connected to a ball conveying tube 511. The right end of the ball conveying tube 511 is fixedly connected to an arc-shaped ball storage sleeve 512. The upper part of the front arc-shaped ball storage sleeve 512 is fixedly connected to a main guide plate 513 that cooperates with the L-shaped ball guide tube 510. The upper part of the rear arc-shaped ball storage sleeve 512 is fixedly connected to a secondary guide plate 514 that cooperates with the L-shaped ball guide tube 510. It should be noted that: a positioning telescopic rod is fixedly connected between the right side of the arc-shaped ball storage sleeve 512 and the inner wall of the support cylinder 1; two main guide plates 513 are provided, and the two main guide plates 513 are symmetrically fixedly connected to the upper part of the front arc-shaped ball storage sleeve 512. The distance between the two main guide plates 513 is set to 1.1 times the diameter of the small grinding ball, so that the large grinding ball is guided into the interior of the front arc-shaped ball storage sleeve 512 by the two main guide plates 513, while the small grinding ball passes through the main guide plate 513 and falls onto the guide plate 514, and enters the interior of the rear arc-shaped ball storage sleeve 512; the L-shaped ball guide tube 510 is inclined to facilitate the discharge of grinding balls.

[0067] A drive motor 515 for driving the electric push rod 502 to rotate is installed between the middle of the two arc-shaped ball storage sleeves 512. A drive disk 516 is movably installed at the movable end of the drive motor 515. A pressure rod 517 is movably installed on the surface of the drive disk 516. A ball delivery spring rod 518 is movably inserted into the lower right side of the arc-shaped ball storage sleeve 512. A wedge-shaped clamping plate 519 that cooperates with the ball delivery spring rod 518 is slidably connected between the lower parts of the two arc-shaped ball storage sleeves 512. The pressure rod 517 is located on the top of the wedge-shaped clamping plate 519. It should be noted that: a mounting bracket is fixedly connected between the two arc-shaped ball storage sleeves 512, and the drive motor 515 is fixedly connected in the middle of the mounting bracket. When the drive motor 515 rotates in the reverse direction, the drive motor 515 drives the drive disc 516 to rotate, causing the drive disc 516 to drive the pressure rod 517 to intermittently press against the top of the wedge-shaped clamping plate 519. The wedge-shaped clamping plate 519 then intermittently moves the ball conveying spring rod 518 into the corresponding arc-shaped ball storage sleeve 512, discharging the grinding balls inside the arc-shaped ball storage sleeve 512 from the ball conveying pipe 511 position, and replenishing the balls in the fine grinding chamber position of the ball mill cylinder 2.

[0068] In this embodiment, as Figures 1 to 20 As shown, the surface of the electric push rod 502 has grooves, and an electric telescopic rod is fixedly connected inside the grooves. Rectangular blocks are symmetrically fixedly connected to the inner ring of the adjusting ring 503. The two rectangular blocks are slidably disposed inside the two grooves, and one end of the electric telescopic rod is fixedly connected to the side wall of the rectangular block. It should be noted that the electric telescopic rod drives the rectangular blocks and the adjusting ring 503 to move on the surface of the electric push rod 502. At this time, the adjusting ring 503 slides on the surface of the adjusting plate 501 via the connecting rod 504, which in turn carries the adjusting plate 505.

[0069] In this embodiment, as Figures 1 to 20As shown, there are eight connecting rods 504. The eight connecting rods 504 are hinged at equal intervals along the circumference to the outer ring of the adjusting ring 503. The number of adjusting plates 505 is the same as that of connecting rods 504.

[0070] Two L-shaped positioning rods 508 are set as a group, and there are eight groups of L-shaped positioning rods 508. The eight groups of L-shaped positioning rods 508 correspond one-to-one with the eight adjusting plates 505.

[0071] An inclined rod is fixedly connected to the side of the L-shaped positioning rod 508 near the arc-shaped guide plate 509, and an inclined pad is fixedly connected to the end of the L-shaped positioning rod 508 away from the adjusting plate 505. A wedge-shaped unloading plate that cooperates with the inclined rod is fixedly connected to the front end of the lower part of the arc-shaped guide plate 509. It should be noted that: when the adjusting disc 501 rotates clockwise on the surface of the filter ring 4, the L-shaped positioning rod 508 can carry the corresponding size grinding ball into the arc-shaped guide plate 509, so that the grinding ball moves along the trajectory of the arc-shaped guide plate 509 to the position of the L-shaped ball guide tube 510 for discharge; when the adjusting disc 501 rotates counterclockwise on the surface of the filter ring 4, under the action of the wedge-shaped unloading plate, the wedge-shaped unloading plate inserts into the gap position of the adjacent inclined rod, pushing the grinding ball out from the position of the inclined rod and the inclined pad, and the grinding ball cannot enter the interior of the arc-shaped guide plate 509; when the two L-shaped positioning rods 508 move in opposite directions, the two L-shaped positioning rods 508 can limit the large grinding ball, while the small grinding ball is discharged from the position of the two inclined pads; when the two L-shaped positioning rods 508 move relative to each other, the two L-shaped positioning rods 508 can limit the small grinding ball, and the large grinding ball falls at the top position of the two L-shaped positioning rods 508. When passing the position of the arc-shaped guide plate 509, the large grinding ball is blocked and discharged.

[0072] In this embodiment, as Figures 1 to 20 As shown, a main gear is fixedly connected to the rotating end of the drive motor 515, and a driven gear is fixedly sleeved on the surface of the electric push rod 502. The top of the main gear meshes with the bottom of the driven gear.

[0073] A one-way bearing is fixedly connected between the rotating end of the drive motor 515 and the inner ring of the drive disc 516. A hinge rod is hinged to the right side of the drive disc 516, and the top of the pressure rod 517 is hinged to the bottom of the hinge rod. It should be noted that when the drive motor 515 rotates clockwise, it drives the electric push rod 502 and the adjusting disc 501 to rotate clockwise through the meshing of the main gear and the driven gear. At this time, under the action of the one-way bearing, the drive disc 516 will not rotate with it. When the drive motor 515 rotates in reverse, it drives the drive disc 516 to rotate synchronously through the one-way bearing. At this time, the drive disc 516 pulls the pressure rod 517 to move up and down reciprocally in the middle of the guide ring through the hinge rod.

[0074] A guide ring is movably sleeved in the middle of the pressure rod 517. The side wall of the guide ring is fixedly connected to the side wall of the arc-shaped ball storage sleeve 512. A retaining ring is fixedly sleeved in the upper part of the pressure rod 517. A compression spring is fixedly connected between the bottom of the retaining ring and the top of the guide ring.

[0075] In this embodiment, as Figures 1 to 20 As shown, an electric telescopic rod is fixedly connected to the end of the ball-transporting spring rod 518, and slots that cooperate with the electric telescopic rod are provided on both sides of the wedge-shaped clamping plate 519. It should be noted that the ball-transporting spring rod 518 can only slide at the lower part of the arc-shaped ball storage sleeve 512 and cannot rotate. When the electric telescopic rod extends and inserts into the slot on the side wall of the wedge-shaped clamping plate 519, the pressure rod 517 presses against the wedge-shaped clamping plate 519 and moves back and forth. During this process, the ball-transporting spring rod 518 can move synchronously with the wedge-shaped clamping plate 519 to perform the grinding ball transport operation.

[0076] Slider blocks are fixedly connected to both sides of the wedge-shaped card plate 519, and slide rods are fixedly connected to the lower parts of the two arc-shaped ball storage sleeves 512. The two sliders are slidably set on the surfaces of the two slide rods, and return springs are movably sleeved on the surfaces of the slide rods.

[0077] The ball delivery tube 511 and the ball delivery spring rod 518 on the same side are on the same axis. A groove is formed between the ball delivery tube 511 and the inner wall of the filter ring 4. A wedge-shaped baffle is slidably installed on the inner wall of the groove. A push spring is fixedly connected between the end of the wedge-shaped baffle and the inner wall of the groove. It should be noted that when the ball delivery spring rod 518 pushes the grinding ball to be discharged towards the position of the ball delivery tube 511, the inclined surface of the wedge-shaped baffle is pressed and can move into the groove. Conversely, the grinding ball at the ball discharge end of the ball delivery tube 511 cannot push the wedge-shaped baffle into the groove. This unidirectional pressure movement of the wedge-shaped baffle ensures the stability of use.

[0078] In this embodiment, as Figures 1 to 20 As shown, the vibration mechanism 7 includes a conveyor belt 701, which is rotatably mounted on the lower part of the unloading bracket 6. An anti-overflow plate 702 overlaps the top of the conveyor belt 701, and the top of the anti-overflow plate 702 is movably inserted into the surface of the unloading bracket 6. A guide wheel 703 is rotatably connected to the side wall of the unloading bracket 6. The surface of the guide wheel 703 is spirally provided with protrusions 704 that cooperate with the conveyor belt 701. It should be noted that a slot is provided in the upper part of the unloading bracket 6, and the anti-overflow plate 702 is movably inserted into the slot. A compression spring is fixedly connected between the inner wall of the slot and the surface of the anti-overflow plate 702, ensuring that the anti-overflow plate 702 remains in contact with the top surface of the conveyor belt 701 during the conveying of the ball-milled material, thus improving the material spill prevention effect. Furthermore, the protrusions 704 spirally mounted on the surface of the guide wheel 703 vibrate the conveyor belt 701 as the guide wheel 703 rotates, reducing material adhesion.

[0079] In this embodiment, as Figures 1 to 20 As shown, the belt drive 3 consists of a support rod, a pulley, and a belt drive motor. The support rod is fixedly connected to the left end of the ball mill cylinder 2, and the pulley is fixedly connected to the left end of the support rod.

[0080] A main support is fixedly connected to the left side of the support cylinder 1. The drive motor is fixedly mounted on the surface of the main support, and a synchronous belt is movably installed between the drive motor and the pulley. It should be noted that during the start-up of the belt drive motor, the synchronous belt drives the pulley, support rod, and ball mill cylinder 2 to rotate inside the support cylinder 1 for ball milling. This method of driving the ball mill cylinder 2 to rotate is existing technology and will not be described in detail here. A slave support is installed on the right side of the support cylinder 1.

[0081] The top of the main support has a feed chute that mates with the ball mill cylinder 2. A gear rod is rotatably connected inside the feed chute, and a scraper that mates with the feed chute is fixedly connected to the surface of the gear rod. A rack rod is slidably mounted on the right side of the main support, with its sidewall meshing with the surface of the gear rod. An arc-shaped block that mates with the rack rod is fixedly connected to the right side of the pulley. It should be noted that multiple arc-shaped blocks are equidistantly installed on the right side of the pulley along the circumference. The left end of the rack rod is a spherical surface that mates with the arc-shaped blocks. A restoring spring is movably sleeved on the right side of the gear rod. When the pulley rotates, the arc-shaped blocks intermittently press against the rack rod, causing the rack rod to mesh with the gear rod and swing with the scraper, scraping the material in the feed chute to prevent material accumulation. The method of feeding material into the ball mill cylinder 2 described above is existing technology and will not be described in detail.

[0082] The invention's usage and advantages: This ball mill, capable of grinding various types of powders, operates as follows:

[0083] like Figures 1 to 20 As shown, when in use, the material to be ground is first fed into the ball mill cylinder 2 from the feed trough position, and then the belt drive 3 is started to rotate the ball mill cylinder 2. The grinding balls inside the ball mill cylinder 2 are used to grind the material. After the material is coarsely ground through the left side of the ball mill cylinder 2, the material enters the right side of the ball mill cylinder 2 through the coarse filter plate for fine grinding.

[0084] Because sticky materials will cause ball clogging during the ball milling process, the drive motor 515 is started, which drives the main gear to mesh with the driven gear on the electric push rod 502. The drive disc 516 will not rotate under the action of the one-way bearing, so the electric push rod 502 drives the adjusting disc 501 to rotate clockwise inside the filter ring 4. During the rotation of the adjusting disc 501, the large grinding balls inside the ball mill cylinder 2 will fall between the two adjacent L-shaped positioning rods 508. During the rotation of the L-shaped positioning rods 508 with the adjusting disc 501, the large grinding balls will enter the L-shaped ball guide tube 510 above the filter ring 4 under the guidance of the arc-shaped guide plate 509 and the restriction of the inclined rod and inclined pad. After entering the L-shaped ball guide tube 510, the large grinding balls will fall between the two main guide plates 513. The main guide plates 513 will guide the large grinding balls into the front arc-shaped ball storage sleeve 512 for storage.

[0085] Then, the telescopic rod at the lower part of the rear arc-shaped ball storage sleeve 512 is inserted into the slot on the side wall of the wedge-shaped clamping plate 519, causing the drive motor 515 to reverse. At this time, the large grinding balls on the two L-shaped positioning rods 508 will not enter the interior of the arc-shaped guide plate 509 under the action of the wedge-shaped unloading plate at the end of the arc-shaped guide plate 509. The reversed drive motor 515 drives the one-way bearing and the drive plate 516 to rotate synchronously, causing the hinge rod on the drive plate 516 to move up and down with the pressure rod 517. The pressure rod 517 presses the wedge-shaped clamping plate 519 in stages. At this time, the wedge-shaped clamping plate... 519 moves back and forth between the lower parts of the two arc-shaped ball storage sleeves 512, causing the wedge-shaped clamping plate 519 to move back and forth along with the telescopic insertion rod and ball conveying spring rod 518 at the lower part of the rear arc-shaped ball storage sleeve 512. This causes the small grinding balls inside the rear arc-shaped ball storage sleeve 512 to be squeezed into the left side of the filter ring 4 through the ball conveying pipe 511. By reducing the size of the large grinding balls and increasing the size of the small grinding balls, the gradation is optimized to balance the grinding capacity and reduce the occurrence of ball clogging. Moreover, this ball changing operation can be performed in the ball milling state, avoiding material agglomeration caused by stopping the machine to replenish the balls.

[0086] When it is necessary to reduce the number of small grinding balls, the electric telescopic rod is activated, which moves the adjusting ring 503 on the surface of the electric push rod 502. This causes the connecting rod 504, which is hinged to the surface of the adjusting ring 503, to move the adjusting plate 505. During the sliding process of the adjusting groove 506 on the adjusting plate 505 and the L-shaped positioning rod 508 inside the movable groove 507, the distance between two adjacent L-shaped positioning rods 508 is adjusted so that the two L-shaped positioning rods 508 can clamp the small grinding balls, while the large grinding balls cannot fall between the two L-shaped positioning rods 508. When the L-shaped positioning rod 508 enters the position of the arc-shaped guide plate 509, it is blocked and filtered by the arc-shaped guide plate 509. In this way, the number of grinding balls of different sizes can be controlled, making it easier to change the grinding ball ratio and improve the ball grinding effect.

[0087] As the ball-milled material enters the unloading bracket 6 on the right side of the support cylinder 1 and is discharged, the guide wheel 703 on the inner ring of the conveyor belt 701 rotates synchronously with the spirally arranged protrusions 704, causing the protrusions 704 to intermittently vibrate the conveyor belt 701, reducing the adhesion of material to the surface of the conveyor belt 701. The vibrating conveyor belt 701 can also move up and down reciprocally inside the unloading bracket 6 with the anti-overflow plate 702. The anti-overflow plate 702 always fits against the top of the conveyor belt 701, reducing the occurrence of material overflowing from the anti-overflow plate 702.

[0088] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ball mill capable of grinding multiple types of powders, comprising a support cylinder (1), wherein a ball mill cylinder (2) is rotatably connected inside the support cylinder (1), and a belt drive (3) is movably connected between the left end of the ball mill cylinder (2) and the surface of the support cylinder (1); Its features are, Also includes: A filter ring (4) is movably connected to the right side of the inner wall of the ball mill cylinder (2). A ball changing mechanism (5) is movably connected between the surface of the filter ring (4) and the surface of the support cylinder (1). The ball changing mechanism (5) is used to replace the grinding balls inside the ball mill cylinder (2). The bottom right side of the support cylinder (1) is movably connected to a discharge bracket (6), and the surface of the discharge bracket (6) is movably connected to a vibration mechanism (7). The vibration mechanism (7) is used to reduce the occurrence of material sticking to the conveyor belt (701).

2. The ball mill capable of grinding multiple types of powders according to claim 1, characterized in that: The ball-changing mechanism (5) includes: an adjustment disc (501), which is rotatably connected to the inner ring of the filter ring (4); An electric push rod (502) has an adjustment disc (501) fixedly connected to its left end and a support cylinder (1) surface rotatably connected to its right end. An adjusting ring (503) is slidably sleeved on the surface of an electric push rod (502). The outer ring of the adjusting ring (503) is hinged to a connecting rod (504). One end of the connecting rod (504) is hinged to an adjusting plate (505), and the surface of the adjusting plate (505) is symmetrically provided with adjusting grooves (506). The movable groove (507) is formed on the surface of the adjusting plate (501) and cooperates with the adjusting plate (505); Multiple sets of L-shaped positioning rods (508), two in each set, are slidably connected in the movable groove (507) and are respectively slidably inserted into the adjustment groove (506) of the adjacent adjustment plate (505); An arc-shaped guide plate (509) is fixedly connected to the left side of the filter ring (4) and cooperates with the L-shaped positioning rod (508); an L-shaped ball guide tube (510) is fixedly connected to the upper part of the filter ring (4) and cooperates with the arc-shaped guide plate (509); a pair of ball conveying tubes (511) are symmetrically fixedly connected to the lower right side of the filter ring (4); A pair of arc-shaped ball storage sleeves (512) are fixedly connected to the right end of each ball conveying tube (511); The main guide plate (513) and the secondary guide plate (514) are fixedly connected to the upper part of the front and rear arc-shaped ball storage sleeve (512) respectively, and cooperate with the L-shaped ball guide tube (510); A drive motor (515) is installed between the middle of two arc-shaped ball storage sleeves (512), and a drive disc (516) is installed on the movable end of the drive motor (515). A pressure rod (517) is movably installed on the surface of the drive disc (516). The ball-carrying spring rod (518) is movably inserted into the lower right side of the arc-shaped ball storage sleeve (512); The wedge-shaped plate (519) is slidably connected between the lower parts of the two arc-shaped ball storage sleeves (512) and cooperates with the ball delivery spring rod (518) and the pressure rod (517).

3. The ball mill capable of grinding multiple types of powders according to claim 2, characterized in that: The surface of the electric push rod (502) is provided with a groove, and an electric telescopic rod is fixedly connected inside the groove. A rectangular block is symmetrically fixedly connected to the inner ring of the adjusting ring (503). The two rectangular blocks are slidably arranged inside the two grooves respectively. One end of the electric telescopic rod is fixedly connected to the side wall of the rectangular block.

4. The ball mill capable of grinding multiple types of powders according to claim 3, characterized in that: The connecting rods (504) are set to eight, and the eight connecting rods (504) are hinged at equal intervals along the circumference to the outer ring of the adjusting ring (503). The number of adjusting plates (505) is the same as that of the connecting rods (504). There are eight sets of L-shaped positioning rods (508), and each set of L-shaped positioning rods (508) corresponds to one of the eight adjustment plates (505). The L-shaped positioning rod (508) is fixedly connected to a diagonal rod on the side near the arc-shaped guide plate (509), and the end of the L-shaped positioning rod (508) away from the adjusting plate (505) is fixedly connected to a diagonal pad. The front end of the lower part of the arc-shaped guide plate (509) is fixedly connected to a wedge-shaped unloading plate that cooperates with the diagonal rod.

5. The ball mill capable of grinding multiple types of powders according to claim 4, characterized in that: The rotating end of the drive motor (515) is fixedly connected to a main gear, and the surface of the electric push rod (502) is fixedly sleeved with a driven gear, with the top of the main gear meshing with the bottom of the driven gear; A one-way bearing is fixedly connected between the rotating end of the drive motor (515) and the inner ring of the drive disc (516). A hinge rod is hinged to the right side of the drive disc (516), and the top of the pressure rod (517) is hinged to the bottom of the hinge rod. A guide ring is movably sleeved in the middle of the pressure rod (517), and the side wall of the guide ring is fixedly connected to the side wall of the arc-shaped ball storage sleeve (512). A retaining ring is fixedly sleeved in the upper part of the pressure rod (517), and a compression spring is fixedly connected between the bottom of the retaining ring and the top of the guide ring.

6. The ball mill capable of grinding multiple types of powders according to claim 5, characterized in that: The end of the ball-carrying spring rod (518) is fixedly connected to an electric telescopic plug rod, and the two sides of the wedge-shaped card plate (519) are provided with slots that cooperate with the electric telescopic plug rod; Both sides of the wedge-shaped card plate (519) are fixedly connected to sliders, and the lower parts of the two arc-shaped ball storage sleeves (512) are fixedly connected to slide rods. The two sliders are respectively slidably disposed on the surfaces of the two slide rods, and a return spring is movably sleeved on the surface of the slide rod. The ball conveying tube (511) and the ball conveying spring rod (518) on the same side are on the same axis. A sinking groove is provided between the ball conveying tube (511) and the inner wall of the filter ring (4). A wedge-shaped baffle is slidably provided on the inner wall of the sinking groove. A push spring is fixedly connected between the end of the wedge-shaped baffle and the inner wall of the sinking groove.

7. The ball mill capable of grinding multiple types of powders according to claim 6, characterized in that: The vibration mechanism (7) includes a conveyor belt (701), which is rotatably mounted on the lower part of the unloading bracket (6). An anti-overflow plate (702) is attached to the top of the conveyor belt (701), and the top of the anti-overflow plate (702) is movably inserted into the surface of the unloading bracket (6). A guide wheel (703) is rotatably connected to the side wall of the unloading bracket (6), and the surface of the guide wheel (703) is spirally provided with a protrusion (704) that cooperates with the conveyor belt (701).

8. The ball mill capable of grinding multiple types of powders according to claim 7, characterized in that: The belt drive (3) consists of a support rod, a pulley and a belt drive motor. The support rod is fixedly connected to the left end of the ball mill cylinder (2), and the pulley is fixedly connected to the left end of the support rod. The main support is fixedly connected to the left side of the support cylinder (1), the drive motor is fixedly installed on the surface of the main support, and a synchronous belt is movably installed between the drive motor and the pulley; The top of the main support is provided with a feed groove that cooperates with the ball mill cylinder (2). A gear rod is rotatably connected inside the feed groove. A scraper that cooperates with the feed groove is fixedly connected to the surface of the gear rod. A rack rod is slidably provided on the right side of the main support. The side wall of the rack rod meshes with the surface of the gear rod. An arc-shaped block that cooperates with the rack rod is fixedly connected to the right side of the pulley.

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