A ball mill for crushing magnetic steel powder and dry crushing method

Abstract

The present invention relates to the technical field of ball milling, and discloses a ball mill for crushing magnetic steel powder and a dry crushing method, wherein the ball mill comprises a frame, on which a cylinder is rotatably arranged, and the cylinder is driven by a driving mechanism installed on the frame; a ball inlet is arranged on the cylinder, and an outer cylinder is rotatably and contactably arranged on the outer wall of the cylinder, and a ball adding funnel is arranged on the outer cylinder, and the ball adding funnel is located on the motion trajectory of the ball inlet; a ball adding mechanism is also arranged on the frame, and the ball adding mechanism is used to send steel balls into the ball adding funnel. The present invention uses the above technical scheme and the setting of the ball adding mechanism to allow steel balls to enter the cylinder separately from the magnetic steel powder, and can use the ball adding mechanism to automatically realize ball adding, which is convenient and quick; and can sort and arrange the steel balls in the ball adding process to prevent the phenomenon of swarming out and easy blockage and arching.

Description

Technical Field

[0001] The invention relates to the technical field of ball milling, and in particular to a ball mill for crushing magnetic steel powder and a dry crushing method. Background Art

[0002] The ball mill is composed of a horizontal cylinder, a hollow shaft for feeding and discharging materials, and a grinding head. The cylinder is a long cylinder with grinding bodies inside. The cylinder is made of steel plates and fixed to the cylinder by steel linings. The grinding bodies are generally steel balls and are loaded into the cylinder according to different diameters and a certain proportion. The grinding bodies can also be steel segments. The materials are selected according to the particle size of the grinding materials. The materials are loaded into the cylinder through the hollow shaft at the feeding end of the ball mill. When the cylinder of the ball mill rotates, the grinding bodies are attached to the cylinder linings due to inertia, centrifugal force, and friction, and are carried away by the cylinder. When they are brought to a certain height, they are thrown down due to their own gravity. The falling grinding bodies crush the materials in the cylinder like projectiles to achieve grinding.

[0003] Chinese patent CN2020202540217 discloses a ball mill, which includes a frame, an inner cylinder body is arranged on the frame, a motor for driving the inner cylinder body to rotate is arranged on the frame, a plurality of ball inlets are arranged on the inner cylinder body, a plurality of ball guide tubes communicating with the corresponding ball inlets are arranged on the inner side wall of the inner cylinder body along its axial direction, a plurality of ball guide tubes have different distances from the end of one end away from the ball inlet and the side wall of the inner cylinder body, an outer cylinder body is arranged on the frame, and a ball adding port that can be connected with the ball inlet is arranged on the outer cylinder body.

[0004] According to the technical solution, when the ball mill needs to add steel balls, the steel balls are loaded into the ball adding port, and the motor is started. As the inner cylinder rotates, a plurality of ball inlets are sequentially connected with the ball adding port, so that the steel balls enter different ball guide tubes as the inner cylinder rotates. The steel balls enter the inner cylinder along with the plurality of ball guide tubes and are dispersed at different positions of the inner cylinder according to the lengths of different ball guide tubes, so that the steel balls are evenly dispersed in the inner cylinder, and the steel balls are prevented from piling up at one end of the ball mill, thereby accelerating the working efficiency of the ball mill and improving the working efficiency of the ball mill.

[0005] However, in actual operation, the ball adding bin at the top is relatively high, and a crane is needed to transport the steel balls to the ball adding bin on the top of the ball mill for temporary storage before they enter the ball mill. Too many steel balls concentrated in the ball adding bin will cause the steel balls to be too concentrated, making it easy for the steel balls to get blocked and form arches when passing through the bottom of the bin. The ball guide tube set in the inner cylinder will change the original structure of the inner cylinder, affecting the installation of the inner cylinder liner and the original ball milling action. Summary of the invention

[0006] The object of the present invention is to provide a ball mill and a dry grinding method for grinding magnetic steel powder to solve the following technical problems:

[0007] 1. The ball adding bin at the top is too high, so a crane is needed to transport the steel balls to the bin at the top of the ball mill for temporary storage before they enter the ball mill. However, too many steel balls are stored in the bin, which will lead to excessive concentration of steel balls, resulting in blockage and arching when the steel balls pass through the bottom of the bin.

[0008] 2. The ball guide tube set in the inner cylinder will change the original structure of the inner cylinder, affecting the installation of the inner cylinder liner and the original ball milling action.

[0009] The purpose of the present invention can be achieved through the following technical solutions:

[0010] A ball mill for crushing magnetic steel powder comprises a frame, on which a cylinder is rotatably arranged, and the cylinder is driven by a driving mechanism installed on the frame;

[0011] The cylinder is provided with a ball-entering opening, an outer cylinder is rotatably mounted on the outer wall of the cylinder, a ball-adding funnel is provided on the outer cylinder, and the ball-adding funnel is located on the motion track of the ball-entering opening;

[0012] The frame is also provided with a ball adding mechanism, which is used for sending steel balls into the ball adding hopper.

[0013] Through the above technical scheme, by utilizing the setting of the ball adding mechanism, the steel balls can be separated from the magnetic steel powder and enter the cylinder, and the ball adding mechanism can be used to automatically add balls, which is convenient and quick; and the steel balls in the ball adding process can be sorted and arranged to prevent them from flowing out in a rush and easily getting blocked and forming an arch.

[0014] As a further solution of the present invention: the ball adding mechanism comprises:

[0015] A frame body, wherein the frame body is fixed on the frame;

[0016] A ball bin, which is arranged on the frame and stores steel balls. A ball outlet is provided on one side of the ball bin, and a hoist is provided on one side of the ball bin to automatically add steel balls into the ball bin.

[0017] A guide groove plate, wherein the guide groove plate is fixedly arranged on the frame, one end of the guide groove plate is aligned with the ball outlet, the other end is aligned with the ball adding funnel and a baffle is movably installed thereon, and the height of the guide groove plate close to the ball outlet is greater than that of the other side;

[0018] The sorting component is used to separate and sort the steel balls in the guide groove plate and guide them out in sequence.

[0019] Through the above technical scheme, the steel balls guided out of the ball bin are forcibly arranged through the sorting component, so as to keep the steel balls in the cylinder in an orderly manner, thereby preventing the ball adding port from being blocked and arching.

[0020] As a further solution of the present invention: the processing component comprises:

[0021] Separation grooves, a plurality of separation grooves are equidistantly arranged on one side of the bottom of the guide groove plate close to the ball adding funnel,

[0022] A separator, wherein the separator is fixedly connected to the inclined plate, and the inclined plate is parallel to the bottom surface of the guide groove plate;

[0023] A lifting rod, one end of which is fixed on the frame, and the other end of which is detachably fixed to the bottom of the inclined plate.

[0024] Through the above technical solution, a specific separation and sorting solution is provided.

[0025] As a further solution of the present invention: the end of the inclined plate close to the baffle is hinged with a connecting rod, the other end of the connecting rod is hinged on the baffle, and the bottom end of the baffle is slidably connected to a slide rail provided on the end surface of the guide groove plate.

[0026] Through the above technical solution, the action of separating and sorting the steel balls is linked with the action of pulling open the baffle. While sorting the steel balls, the baffle is gradually opened to allow the steel balls to be sequentially exported for adding balls.

[0027] As a further solution of the present invention: a slide groove is provided on the baffle, a spring is arranged in the slide groove, and the end of the connecting rod is slidably connected in the slide groove.

[0028] Through the above technical solution, after the separation and sorting are initially completed, the baffle is pushed open in linkage to gradually release the sorted steel balls.

[0029] As a further solution of the present invention: the processing component comprises:

[0030] A load-bearing plate, on which a plurality of parallel partitions are arranged, and steel ball channels are formed between adjacent partitions;

[0031] A notch, the notch being provided in a region of the guide slot plate close to the baffle plate;

[0032] A telescopic rod, the telescopic rod is fixed on the frame body through a stand, and the telescopic end of the telescopic rod is detachably fixed on the bearing plate;

[0033] A spacing is left between the end of the baffle plate and the inner side wall of the guide groove plate, and the spacing value is equal to the width of the steel ball channel.

[0034] Through the above technical solution, another separation and sorting solution is provided, and the ball adding action is performed in sequence.

[0035] As a further solution of the present invention: the ball bin includes a turntable frame, a rotation bin is rotatably arranged on the turntable frame, the rotation bin is equally divided into a plurality of chambers, the chambers are open on one side away from the axis of the rotation bin, and the ball outlet is opened on the side wall of the turntable frame.

[0036] Through the above technical solution, when the steel balls are led out from the ball bin, there is a larger opening, thereby preventing blockage and arching, and also accelerating the leading out of the steel balls.

[0037] As a further solution of the present invention: the driving mechanism includes a large gear, the large gear is fixedly arranged on the outer wall of one side of the cylinder, the driving motor is fixedly installed on the frame, the driving motor is transmission-connected to the small gear, and the large gear is meshed with the small gear for transmission.

[0038] Through the above technical solution, a specific driving mechanism is provided.

[0039] A dry pulverizing method for pulverizing magnetic steel powder, the dry pulverizing method is suitable for the above-mentioned ball mill, and the specific method steps are as follows:

[0040] S1: Put the steel balls into the ball bin for storage in advance, then put the magnetic steel powder into the cylinder to wait for crushing, and start the driving mechanism to drive the cylinder to rotate;

[0041] S2: Start the ball adding mechanism, use the ball adding mechanism to guide the steel balls in the ball bin into the guide groove plate, and then use the sorting component to separate and sort the steel balls in the guide groove plate, and then arrange them in order and pour them into the ball adding funnel;

[0042] S3: The steel balls enter the cylinder from the ball adding port of the ball adding funnel. After all the steel balls in the guide groove plate enter the cylinder, the cylinder is operated for a set time to obtain crushed magnetic steel powder.

[0043] Beneficial effects of the present invention:

[0044] (1) The present invention can use the ball adding mechanism to sort out the steel balls in the ball adding process to prevent the steel balls from flowing out in a rush and being easily blocked and arched; wherein an electromagnetic valve is installed at the outlet of the ball adding funnel, which is opened when steel balls need to be added and closed when steel balls are not needed;

[0045] (2) The present invention drives the end of the connecting rod to move upward during the process of the inclined plate rising, thereby pushing the other end of the connecting rod to slide outward, causing the connected baffle to slide outward, thereby gradually opening the opening of the guide groove plate, and by the inclined plate rising, pushing the separator to forcibly sort and rank the steel balls, while sequentially pushing the baffle to slide, and discharging the steel balls in the corresponding space in order from front to back, thereby achieving the effect of orderly discharge; the action of separating and sorting the steel balls is linked to the action of pulling open the baffle, while sorting the steel balls, the baffle is gradually opened, so that the steel balls are sequentially discharged for ball addition, thereby enhancing the anti-blocking effect and improving the ball addition efficiency;

[0046] (3) The present invention provides a movable space for the end of the connecting rod by setting a slide groove and a spring. Therefore, in the first half of the rising of the inclined plate, the end of the connecting rod only slides relatively in the slide groove under the push of the inclined plate. After the partition rises a certain distance and the steel balls are initially arranged, the end of the connecting rod is blocked by the compressed spring and is forced to push the baffle to open gradually. The action of the baffle opening in sequence lags slightly behind the action of separating and arranging the steel balls, thereby maintaining the orderliness of the steel balls in the front space, enhancing the anti-blocking effect and improving the ball adding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The present invention will be further described below in conjunction with the accompanying drawings.

[0048] Figure 1 Schematic diagram of the three-dimensional structure of Example 1 of the present invention;

[0049] Figure 2 for Figure 1 A top view of

[0050] Figure 3 for Figure 2 Sectional view at AA in the middle;

[0051] Figure 4 is a top view of embodiment 2 of the present invention;

[0052] Figure 5 It is a diagram of the method steps of the present invention.

[0053] Description of the drawings: 1. frame; 2. cylinder; 3. driving mechanism; 31. large gear; 32. driving motor; 33. small gear; 4. outer cylinder; 5. ball adding funnel; 6. ball adding mechanism; 61. frame; 62. ball bin; 621. turntable frame; 622. rotation bin; 623. chamber; 63. ball outlet; 64. guide groove plate; 65. baffle; 66. sorting component; 661. dividing groove; 662. dividing piece; 663. inclined plate; 664. lifting rod; 665. connecting rod; 666. slide groove; 667. bearing plate; 668. partition; 669. notch; 670. telescopic rod. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0055] See also Figure 1-5 As shown, the present invention is a ball mill for crushing magnetic steel powder.

[0056] Embodiment 1:

[0057] like Figure 1-3 As shown, it comprises a frame 1, on which a cylinder 2 is rotatably arranged, and the cylinder 2 is driven by a driving mechanism 3 installed on the frame 1;

[0058] The cylinder 2 is provided with a ball-entering opening, an outer cylinder 4 is rotatably mounted on the outer wall of the cylinder 2, a ball-adding funnel 5 is provided on the outer cylinder 4, and the ball-adding funnel 5 is located on the motion track of the ball-entering opening;

[0059] The frame 1 is also provided with a ball adding mechanism 6 , and the ball adding mechanism 6 is used to send steel balls into the ball adding funnel 5 .

[0060] As a further solution of the present invention: the driving mechanism 3 includes a large gear 31, the large gear 31 is fixedly arranged on the outer wall of one side of the cylinder 2, a driving motor 32 is fixedly installed on the frame 1, the driving motor 32 is connected to the small gear 33, and the large gear 31 is meshed with the small gear 33 for transmission.

[0061] Through the above technical scheme, the ball adding mechanism 6 is first used to add the steel balls into the ball bin 62, and then the magnetic steel powder to be processed is fed into the cylinder 2, and the driving motor 32 is started, and the driving motor 32 drives the small gear 33, and the small gear 33 drives the meshing large gear 31, so that the cylinder 2 is in an operating working state to grind the magnetic steel powder. Since the ball adding funnel 5 is installed on the outer cylinder 4, the ball adding mechanism 6 is started, and the steel balls are successively passed through the ball adding funnel 5 and the ball inlet and finally enter the cylinder 2. Compared with the prior art, when the cylinder 2 is in an operating state, the present invention can conveniently feed the steel balls into the cylinder 2 as long as the ball adding funnel 5 and the ball inlet are in a corresponding state, and the ball adding action can be completed without stopping the cylinder 2; when the cylinder 2 is in a rotating state, the size of the ball inlet is greater than The ball adding funnel 5 is located in the ball inlet area, so that a batch of steel balls can pass through it during alignment, so that the steel balls originally put in at one time can be put in batches, eliminating the need to set a ball guide tube in the inner cylinder, and can effectively reduce the accumulation of steel balls in the area near the ball inlet, so that the steel balls are distributed more dispersedly, which is effective in enhancing the ball milling efficiency; at the same time, the ball adding mechanism 6 automatically adds balls, which is convenient and fast, and can use the ball adding mechanism 6 to sort and arrange the steel balls in the ball adding process to prevent a swarm of outflows that are easy to block and form arches; an electromagnetic valve is installed at the outlet of the ball adding funnel 5, which is opened when steel balls need to be added and closed when steel balls are not needed; the ball adding in the cylinder can be selected according to actual production needs, and the cylinder can be rotated to add balls, or the cylinder can be stationary to add balls.

[0062] As a further solution of the present invention: the ball adding mechanism 6 comprises:

[0063] A frame 61, wherein the frame 61 is fixed on the frame 1;

[0064] A ball bin 62, which is disposed on the frame 61 and stores steel balls. A ball outlet 63 is provided on one side of the ball bin 62, and a hoist is provided on one side of the ball bin 62 to automatically add steel balls into the ball bin 62;

[0065] A guide groove plate 64, wherein the guide groove plate 64 is fixedly arranged on the frame body 61, one end of which is aligned with the ball outlet 63, and the other end is aligned with the ball adding funnel 5 and is movably mounted with a baffle 65, and the height of the side close to the ball outlet 63 is greater than the other side;

[0066] The sorting component 66 is used to separate and sort the steel balls in the guide groove plate 64 and guide them out in sequence.

[0067] Through the above technical solution, the steel balls are poured into the elevator. The elevator is an existing technology and an applicable elevator can be freely selected, so it is not described in detail. Through the operation of the elevator, the steel balls are automatically lifted to the ball bin 62 for storage, and the automatic ball adding operation of the ball bin 62 is realized, eliminating the need for manual labor and cranes, and effectively saving labor. When it is necessary to add balls to the cylinder 2, the ball adding mechanism 6 is started, the ball outlet 63 of the ball bin 62 is opened, and the steel balls enter the guide groove plate 64, and then the separation component is forced to separate the steel balls in the guide groove plate 64. And form an orderly arrangement, the baffle 65 can be set to be electric. After the separation and sorting of the sorting component 66 is completed, the electric baffle 65 can automatically open from one side to the other side in sequence, and the separated steel balls are sequentially exported. Because the steel balls are arranged in sequence when entering the ball adding funnel 5 and the ball inlet, there will be no blockage and arching phenomenon, which improves the efficiency of adding balls in the cylinder 2 and avoids the trouble of clearing the ball inlet; the guide groove plate 64 set low on the left and high on the right allows the steel balls to automatically roll and be discharged to a lower place under their own weight, which is convenient and quick.

[0068] As a further solution of the present invention: the processing component 66 includes:

[0069] Separation grooves 661, a plurality of separation grooves 661 are equidistantly arranged at one side of the bottom of the guide groove plate 64 close to the ball adding funnel 5,

[0070] A partition 662, wherein the partition 662 is fixedly connected to an inclined plate 663, and the inclined plate 663 is parallel to the bottom surface of the guide groove plate 64;

[0071] A lifting rod 664 , one end of which is fixed to the frame 1 , and the other end of which is detachably fixed to the bottom of the inclined plate 663 .

[0072] Through the above technical solution, when the sorting component 66 is working, the electric, pneumatic or hydraulic lifting rod 664 rises, and the lifting rod 664 pushes the top inclined plate 663 and the partition 662 to rise, and the partition 662 is pushed out from the corresponding partition groove 661, thereby forcibly separating the steel balls in the agglomerated state, allowing the steel balls to fall into the space between the two partitions 662, so as to achieve the arrangement of the steel balls in a row, so that the steel balls are in an orderly state when entering the ball adding funnel 5.

[0073] Furthermore, a connecting rod 665 is hinged at the end of the inclined plate 663 close to the baffle 65 , the other end of the connecting rod 665 is hinged on the baffle 65 , and the bottom end of the baffle 65 is slidably connected to a slide rail provided on the end surface of the guide groove plate 64 .

[0074] Through the above technical scheme, during the rising process of the inclined plate 663, the end of the connecting rod 665 is driven to move upward, thereby pushing the other end of the connecting rod 665 to slide outward, causing the connected baffle 65 to slide outward, thereby gradually opening the opening of the guide groove plate 64, and the inclined plate 663 rises, pushing the partition 662 to forcibly sort the steel balls, and at the same time sequentially pushing the baffle 65 to slide, and discharge the steel balls in the corresponding space in sequence from front to back, so as to achieve the effect of orderly discharge; the action of separating and sorting the steel balls is linked with the action of pulling open the baffle 65, and the baffle 65 is gradually opened while the steel balls are sorted, so that the steel balls are sequentially discharged for ball addition, thereby enhancing the anti-blocking effect and improving the ball adding efficiency.

[0075] As a further solution of the present invention: a slide groove 666 is provided on the baffle plate 65 , a spring is provided in the slide groove 666 , and the end of the connecting rod 665 is slidably connected in the slide groove 666 .

[0076] Through the above technical scheme, through the setting of the slide groove 666 and the spring, a moving space is provided for the end of the connecting rod 665, so in the first half of the rising of the inclined plate 663, the end of the connecting rod 665 only slides relatively in the slide groove 666 under the push of the inclined plate 663, so that after the partition 662 rises a certain distance and the steel balls are initially sorted, the end of the connecting rod 665 is blocked by the compressed spring and is forced to push the baffle 65 to open gradually, so that the sequential opening action of the baffle 65 lags slightly behind the separation and sorting action of the steel balls, thereby maintaining the orderliness of the steel balls in the front space, enhancing the anti-blocking effect and improving the ball adding efficiency.

[0077] Embodiment 2:

[0078] like Figure 4 As shown, the difference from Example 1 is that another embodiment of the separation component 66 is provided.

[0079] It includes: a bearing plate 667, on which a plurality of parallel partitions 668 are arranged, and steel ball channels are formed between adjacent partitions 668;

[0080] A notch 669, wherein the notch 669 is provided in a region of the guide slot plate 64 close to the baffle plate 65;

[0081] A telescopic rod 670, wherein the telescopic rod 670 is fixed on the frame body 61 through a stand, and a telescopic end of the telescopic rod 670 is detachably fixed on the bearing plate 667;

[0082] There is a distance between the end of the baffle plate 65 and the inner wall of the guide groove plate 64, and the distance value is equal to the width of the steel ball channel.

[0083] Through the above technical scheme, during specific operation, the carrying plate 667 and the partition plate 668 pre-divide the space in the guide groove plate 64 into multiple steel ball channels, so that the steel balls released from the ball bin 62 are sorted, eliminating the subsequent forced lifting and separation process, and then the hydraulic, electric or pneumatic telescopic rod 670 pushes the carrying plate 667 to move to the front side until the steel ball channel on the front side matches the reserved spacing of the baffle 65, and the two are in a conducting state, and the steel balls in the channel automatically flow out in an orderly manner and enter the ball adding funnel 5. As the telescopic rod 670 gradually extends, the steel balls in different steel ball channels are aligned with the spacing in turn and flow out, achieving the effect of orderly entering the ball adding funnel 5, preventing blockage and arching caused by a rush, improving the efficiency of adding balls in the cylinder 2, and eliminating the trouble of clearing the ball entrance;

[0084] At the same time, a camera device can be installed on the guide groove plate 64 to record the number of steel balls in the steel ball channel. The length of the extension of the telescopic rod 670 can be controlled to select several steel balls in the steel ball channel to be discharged, so that the number of added balls can be adjusted.

[0085] Embodiment 3:

[0086] like Figure 1 As shown, the difference from Examples 1 and 2 is that the ball bin 62 includes a turntable frame 621, on which a rotation bin 622 is rotatably arranged, and the rotation bin 622 is equally divided into a plurality of chambers 623, and the chambers 623 are open on one side away from the axis of the rotation bin 622, and the ball outlet 63 is opened on the side wall of the turntable frame 621.

[0087] Through the above technical scheme, the ball bin 62 is divided into chambers 623 of the same size as a whole, and the side walls of the turntable frame 621 are used as barrier walls. As long as the corresponding chamber 623 corresponds to the ball outlet 63 on the side wall of the turntable frame 621, the steel balls in the chamber 623 are automatically released. Compared with the ordinary ball bin 62, the ball outlet 63 is larger, the ball guiding efficiency is higher, and the balls can be stored in multiple chambers 623 in advance. The driving source can be a motor, which is directly connected to the rotation bin 622, or other driving methods. It only needs to use the driving source to drive the rotation bin 622 to rotate, so as to realize the distribution of steel balls, and the circulation and sustainability are stronger.

[0088] A dry pulverizing method for pulverizing magnetic steel powder, the dry pulverizing method is suitable for the above-mentioned ball mill, and the specific method steps are as follows:

[0089] S1: Put the steel balls into the ball bin 62 for storage in advance, then put the magnetic steel powder into the cylinder 2 to wait for crushing, and start the driving mechanism 3 to drive the cylinder 2 to rotate;

[0090] S2: Start the ball adding mechanism 6, use the ball adding mechanism 6 to guide the steel balls in the ball bin 62 into the guide groove plate 64, and then use the sorting component 66 to separate and sort the steel balls in the guide groove plate 64, and then arrange them in order and pour them into the ball adding funnel 5;

[0091] S3: The steel balls enter the cylinder 2 from the ball adding port of the ball adding funnel 5. After all the steel balls in the guide groove plate 64 enter the cylinder 2, the crushed magnetic steel powder can be obtained after the set operation time.

[0092] Working principle of the present invention:

[0093] Pour the steel balls into the elevator, and the elevator automatically lifts the steel balls to the ball bin 62 for storage, so as to realize the automatic ball adding operation of the ball bin 62; the ball bin 62 is divided into chambers 623 of the same size, and the side wall of the turntable frame 621 is used as a retaining wall;

[0094] The magnetic steel powder to be processed is fed into the cylinder 2, and the driving motor 32 is started, the driving motor 32 drives the small gear 33, and the small gear 33 drives the meshing large gear 31, so that the cylinder 2 is in a running working state;

[0095] When adding balls to the cylinder 2, as long as the driving source drives the corresponding chamber 623 to correspond to the ball outlet 63 on the side wall of the turntable frame 621, the steel balls in the chamber 623 are automatically released, and the steel balls enter the guide groove plate 64, and then the separation component 66 forcibly separates the steel balls in the guide groove plate 64 and arranges them in order. The baffle 65 is controlled to open and the separated steel balls are sequentially exported. Because the steel balls are arranged in order when entering the ball adding funnel 5 and the ball inlet, there will be no blockage or arching phenomenon, which improves the efficiency of adding balls to the cylinder 2 and avoids the trouble of clearing the ball inlet.

[0096] When the sorting component 66 is working, the electric, pneumatic or hydraulic lifting rod 664 rises, and the lifting rod 664 pushes the top inclined plate 663 and the separator 662 to rise, and the separator 662 is pushed out from the corresponding separation groove 661, thereby forcibly separating the steel balls in the agglomerated state, allowing the steel balls to fall into the space between the two separators 662, so as to achieve the full arrangement of the steel balls, so that the steel balls are in an orderly state when entering the ball adding funnel 5;

[0097] During the rising process of the inclined plate 663, the end of the connecting rod 665 is driven to move upward, thereby pushing the other end of the connecting rod 665 to slide outward, causing the connected baffle 65 to slide outward, thereby gradually opening the opening of the guide groove plate 64, and the inclined plate 663 rises, pushing the partition 662 to forcibly sort the steel balls, and at the same time sequentially pushing the baffle 65 to slide, and discharge the steel balls in the corresponding space in sequence from front to back, thereby achieving the effect of orderly discharge; the action of separating and sorting the steel balls is linked to the action of pulling open the baffle 65, and the baffle 65 is gradually opened while the steel balls are sorted, so that the steel balls are sequentially discharged for ball addition, thereby enhancing the anti-blocking effect and improving the ball adding efficiency.

[0098] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A ball mill for crushing magnetic steel powder, comprising a frame (1), a cylinder (2) rotatably arranged on the frame (1), and the cylinder (2) is driven by a driving mechanism (3) installed on the frame (1); It is characterized in that The cylinder (2) is provided with a ball-injection hole, an outer cylinder (4) is rotatably mounted on the outer wall of the cylinder (2), a ball-adding funnel (5) is provided on the outer cylinder (4), and the ball-adding funnel (5) is located on the movement track of the ball-injection hole; The frame (1) is also provided with a ball adding mechanism (6), and the ball adding mechanism (6) is used to send steel balls into the ball adding funnel (5); The ball adding mechanism (6) comprises: A frame (61), wherein the frame (61) is fixed on the frame (1); A ball bin (62), wherein the ball bin (62) is arranged on the frame (61), and steel balls are stored in the ball bin (62), a ball outlet (63) is provided on one side of the ball bin (62), and a hoist is provided on one side of the ball bin (62) to automatically add steel balls into the ball bin (62); A guide groove plate (64), the guide groove plate (64) is fixedly arranged on the frame (61), one end of the guide groove plate (64) is aligned with the ball outlet (63), the other end is aligned with the ball adding funnel (5) and a baffle plate (65) is movably installed thereon, and the height of the side close to the ball outlet (63) is greater than that of the other side; A sorting component (66), the sorting component (66) is used to separate and sort the steel balls in the guide groove plate (64) and guide them out in sequence; The processing component (66) comprises: A plurality of separation grooves (661) are equidistantly arranged on one side of the bottom of the guide groove plate (64) close to the ball adding funnel (5). A separator (662), wherein the separator (662) is fixedly connected to an inclined plate (663), and the inclined plate (663) is parallel to a bottom surface of the guide groove plate (64); A lifting rod (664), one end of which is fixed to the frame (1), and the other end of which is detachably fixed to the bottom of the inclined plate (663); The end of the inclined plate (663) close to the baffle plate (65) is hinged with a connecting rod (665), the other end of the connecting rod (665) is hinged on the baffle plate (65), and the bottom end of the baffle plate (65) is slidably connected to a slide rail provided on the end surface of the guide groove plate (64); The baffle plate (65) is provided with a sliding groove (666), a spring is arranged in the sliding groove (666), and the end of the connecting rod (665) is slidably connected in the sliding groove (666).

2. The ball mill for crushing magnetic steel powder according to claim 1, characterized in that: The processing component (66) comprises: A bearing plate (667), wherein a plurality of parallel partitions (668) are arranged on the bearing plate (667), and steel ball channels are formed between adjacent partitions (668); a notch (669), wherein the notch (669) is provided in a region of the guide groove plate (64) close to the baffle plate (65); A telescopic rod (670), the telescopic rod (670) being fixedly arranged on the frame body (61) via a stand, and the telescopic end of the telescopic rod (670) being detachably fixed on the bearing plate (667); A spacing is left between the end of the baffle (65) and the inner wall of the guide groove plate (64), and the spacing is equal to the width of the steel ball channel.

3. The ball mill for crushing magnetic steel powder according to claim 1, characterized in that: The ball bin (62) comprises a turntable frame (621), on which a rotation bin (622) is rotatably arranged, and the rotation bin (622) is equally divided into a plurality of bin chambers (623), the bin chambers (623) are open on one side away from the axis of the rotation bin (622), and the ball outlet (63) is provided on the side wall of the turntable frame (621).

4. The ball mill for crushing magnetic steel powder according to claim 1, characterized in that: The driving mechanism (3) comprises a large gear (31), the large gear (31) is fixedly arranged on the outer wall of one side of the cylinder (2), a driving motor (32) is fixedly mounted on the frame (1), the driving motor (32) is connected to a small gear (33) in a transmission manner, and the large gear (31) and the small gear (33) are meshed and transmitted.

5. A dry pulverizing method for pulverizing magnetic steel powder, characterized in that: The dry pulverization method is applicable to the ball mill described in any one of claims 1 to 4, and the specific method steps are as follows: S1: Put the steel balls into the ball bin (62) for storage in advance, then put the magnetic steel powder into the cylinder (2) to wait for crushing, and start the driving mechanism (3) to drive the cylinder (2) to rotate; S2: starting the ball adding mechanism (6), using the ball adding mechanism (6) to guide the steel balls in the ball bin (62) into the guide groove plate (64), and then using the sorting component (66) to separate and sort the steel balls in the guide groove plate (64), and then arranging them in order and pouring them into the ball adding funnel (5); S3: Steel balls enter the cylinder (2) from the ball adding port of the ball adding funnel (5). After all the steel balls in the guide groove plate (64) enter the cylinder (2), the crushed magnetic steel powder can be obtained after running for a set time.

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