Vertical sand mill for preparing suspending agent

Abstract

The invention relates to the technical field of sand mills, in particular to a vertical sand mill for preparing a suspending agent. Comprising a rack, and the output end of a transmission box is fixedly connected with a first circular truncated cone wheel; the outer sleeve shaft is rotationally connected to the transmission box, the outer sleeve shaft is in spline connection with a first spline ring, and the outer sleeve shaft is rotationally connected with a sealing disc; the sanding column is fixedly connected to the outer sleeve shaft; the inner sleeve shaft is rotationally connected to the outer sleeve shaft, and a first elastic piece is fixedly connected between the outer sleeve shaft and the inner sleeve shaft; and the grinding barrel is fixedly connected to a sealing disc on the outer sleeve shaft. The viscosity of a high-viscosity material is detected through the torsion change of the first elastic piece, so that the position of the first spline ring is adjusted, the transmission ratio between the first spline ring and the first circular truncated cone wheel is changed, the rotating speed of the sanding column is adjusted, and then the collision strength of a grinding medium in the grinding barrel and the sanding column can be changed in a self-adaptive mode; therefore, the service life of the sand mill is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of sand mills, in particular to a vertical sand mill used for preparing a suspension agent. Background Art

[0002] Vertical sand mill equipment is widely used in chemical industry, material preparation and other fields due to its high efficiency, continuity and strong adaptability. Vertical sand mill is mainly based on the high-speed rotation of the sand mill column. The high-speed rotating sand mill column hits the grinding medium, causing the grinding medium to generate kinetic energy and impact and shear the material to achieve extremely fine particle grinding.

[0003] When a vertical sand mill is used to grind high-viscosity materials, the flow resistance imposed by the high-viscosity materials on the grinding medium is too large. The existing solution is to increase the rotation speed to increase the impact force to overcome the flow resistance. Since the viscosity of some high-viscosity materials such as polymers changes greatly before and after grinding, and the vertical sand mill does not have the function of automatic speed adjustment during sanding, the viscosity of high-viscosity materials such as polymers decreases, and the fluid resistance to the grinding medium also decreases, while the speed of the sand mill remains unchanged, which intensifies the collision between the sand mill column and the grinding medium, and causes rapid wear of the sand mill column and the grinding medium, resulting in a shortened service life of the sand mill. In addition, due to the high initial viscosity of the material, the sand mill is not suitable for grinding. Summary of the invention

[0004] In order to overcome the shortcomings described in the above background technology, the present invention provides a vertical sand mill for preparing a suspension.

[0005] Technical solution: A vertical sand mill for preparing a suspension, comprising: a frame, a lifting column installed in the frame, a transmission box fixedly connected to the telescopic end of the lifting column, a motor fixedly connected to one side of the transmission box, an input end of the transmission box fixedly connected to the output shaft of the motor, a first truncated cone wheel fixedly connected to the output end of the transmission box; an outer sleeve shaft, rotatably connected to the other side of the transmission box, a spline is provided on one side of the outer sleeve shaft, a first spline ring is splined on the outer sleeve shaft, the first spline ring and the first truncated cone wheel are connected by friction transmission, and the middle part of the outer sleeve shaft rotates A closed disk is connected; a sanding column is fixedly connected to the side of the outer sleeve shaft away from the transmission box, a cavity is arranged in the sanding column, and a filter membrane is fixedly connected to the inner wall of the sanding column; an inner sleeve shaft is rotatably connected to the outer sleeve shaft, a first elastic member is fixedly connected between the outer sleeve shaft and the inner sleeve shaft, and a turbine is fixedly connected to the lower end of the inner sleeve shaft; a grinding barrel is fixedly connected to the closed disk on the outer sleeve shaft, and the sanding column is located in the grinding barrel; a barrel is arranged on the frame; a first adjusting component is arranged on the outer sleeve shaft, and is used to change the contact position of the first spline ring and the first frustum wheel.

[0006] Furthermore, an inclined frustum is fixedly connected to the upper side of the sanding column for guiding the material.

[0007] Furthermore, the first adjustment component includes: a spiral column, splined to the inner sleeve shaft, and the spiral column is threadedly connected to the outer sleeve shaft; a rotating column, rotationally connected to the spiral column, and the rotating column is slidably connected to the outer sleeve shaft; a transmission frame, fixed to the rotating column and slidably connected to the transmission box, the transmission frame is rotatably connected to the first spline ring, and the transmission frame is used to drive the first spline ring to move, thereby changing the transmission ratio between the first spline ring and the first frustum wheel.

[0008] Furthermore, it also includes: an inner toothed disc, rotatably connected to the upper side of the grinding barrel, the inner toothed disc being fixedly connected to a scraper, the scraper being used to scrape the grinding medium on the inner wall of the grinding barrel; a driving component, arranged on the lower side of the transmission box, for driving the inner toothed disc to rotate.

[0009] Further, the driving assembly includes: a second truncated cone wheel, which is rotatably connected to the closed disk in the middle of the outer sleeve shaft and is connected to the first truncated cone wheel through a universal joint; a support frame, which is fixedly connected to the transmission box, and a spline column is rotatably connected to the support frame, and a first gear is fixedly connected to one side of the spline column; a second spline ring, which is slidably connected to the spline column, and the second spline ring is connected to the second truncated cone wheel through friction transmission; a reduction box, which is fixedly connected to the support frame, and a second gear is fixedly connected to the input end of the reduction box, and the first gear is meshed with the second gear; a trigger gear, which is rotatably connected to the closed disk on the outer sleeve shaft; a transmission shaft, which is rotatably connected to the closed disk on the outer sleeve shaft and is rotatably connected to the grinding barrel, and spur gears are fixedly connected to both ends of the transmission shaft, and the transmission shaft is meshed with the trigger gear and the inner gear disk through the spur gears thereon for transmission; a trigger assembly, which is arranged on the reduction box to drive the trigger gear to rotate; a second adjustment assembly, which is arranged on the transmission box to adjust the contact position of the second truncated cone wheel and the second spline ring.

[0010] Furthermore, the transmission ratio between the spur gear on the upper side of the transmission shaft and the trigger gear is the same as the transmission ratio between the spur gear on the lower side of the transmission shaft and the internal gear disc.

[0011] Furthermore, the trigger assembly includes: a rotating disk, fixedly connected to the trigger gear, a second elastic member fixedly connected between the output end of the reduction gearbox and the rotating disk, and a protruding column fixedly connected to the rotating disk; a trigger disk, fixedly connected to the support frame, a spring block is provided on the trigger disk, and the spring block limits the protruding column.

[0012] Furthermore, the second adjustment component includes: an adjustment clamp fixed to the transmission frame, and the adjustment clamp is rotatably connected to the second spline ring.

[0013] Furthermore, a plurality of spaced-apart limiting plates are fixedly connected to the upper side of the scraper, and the limiting plates are used to push the grinding medium.

[0014] Furthermore, the projection of the scraper in the vertical direction is a complete circular ring.

[0015] The beneficial effects of the present invention are as follows: the present invention detects the viscosity of high-viscosity materials through the torsional change of the first elastic member, thereby adjusting the position of the first spline ring, changing the transmission ratio between the first spline ring and the first frustum wheel, and adjusting the rotation speed of the sanding column, thereby being able to adaptively change the collision force between the grinding medium and the sanding column in the grinding barrel, so that when the viscosity of the material is too large, the sanding column transmits greater kinetic energy to the grinding medium, so that the grinding medium can reduce the influence of fluid resistance on the shearing of the grinding medium by the grinding medium. When the viscosity of the material gradually decreases, the fluid resistance decreases, thereby reducing the kinetic energy transmitted by the sanding column to the grinding medium, thereby extending the service life of the sand mill.

[0016] The present invention scrapes off the grinding media and materials adhering to the inner wall of the grinding barrel by a scraper, so that during the grinding process of the sand mill, the probability of the grinding media being adhered to the sticky materials is reduced, the degree of confusion of the grinding media and materials in the grinding barrel is increased, and the grinding effect and grinding efficiency are further improved.

[0017] The present invention guides the grinding medium pushed on the scraper by the limit plate, so that the distribution of the grinding medium inside the grinding barrel is more uniform, thereby avoiding excessive grinding of part of the material caused by uneven distribution of the grinding medium in the grinding barrel, ensuring the grinding quality of the material and improving the stability of the sand mill during operation.

[0018] The present invention adjusts the position of the second spline ring by adjusting the clamp, so that the rotation frequency of the scraper can be adaptively adjusted according to the viscosity of the material. When the viscosity of the material is large, the probability of the grinding medium adhering to the inner wall of the grinding barrel is high, and the accumulation amount of the grinding medium adhering to the inner wall increases rapidly, thereby increasing the rotation frequency of the scraper, and cleaning the grinding medium on the inner wall of the grinding barrel. As the grinding time increases, the viscosity of the material gradually decreases, the probability of the grinding medium adhering to the inner wall of the grinding barrel gradually decreases, and the accumulation amount of the grinding medium adhering to the inner wall increases slowly, thereby reducing the rotation frequency of the scraper, thereby reducing the impact on the working stability of the grinding barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a three-dimensional structural cross-sectional view of the frame and barrel of the present invention; Figure 3 It is a three-dimensional structural cross-sectional view of the grinding barrel and the barrel of the present invention; Figure 4 It is a three-dimensional structural cross-sectional view of the outer sleeve shaft and the inner sleeve shaft of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the first elastic member and the spiral column of the present invention; Figure 6 It is a three-dimensional structural schematic diagram of the transmission frame of the present invention; Figure 7 It is a three-dimensional structural schematic diagram of the support frame and the reduction box of the present invention; Figure 8 It is a three-dimensional structural schematic diagram of the sanding column and turbine of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the second elastic member and the rotating disk of the present invention; Fig.10 It is a schematic diagram of the three-dimensional structure of the limiting plate of the present invention; Fig.11 It is a top view of the three-dimensional structure of the scraper of the present invention.

[0020] In the figure: 1, frame; 2, lifting column; 3, transmission box; 4, motor; 5, first frustum wheel; 6, outer shaft; 7, first spline ring; 8, sanding column; 9, filter membrane; 10, first elastic member; 11, inner shaft; 12, turbine; 13, grinding barrel; 14, barrel; 21, spiral column; 22, rotating column; 23, transmission frame; 31, inner gear plate; 32, scraper; 41, second frustum wheel; 42, support frame; 43, spline column; 431, first gear; 44, second spline ring; 45, reduction box; 451, second gear; 46, trigger gear; 47, transmission shaft; 51, second elastic member; 52, rotating disk; 521, boss; 53, trigger disk; 54, spring block; 61, limit plate; 71, tilting frustum; 81, adjustment clamp. DETAILED DESCRIPTION

[0021] The present invention will now be described more fully below with reference to the accompanying drawings, in which currently preferred embodiments of the present invention are shown. However, the present invention can be implemented in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness, and these embodiments fully convey the scope of the present invention to the skilled person. Example

[0022] A vertical sand mill for preparing a suspension, such as Figure 1-Figure 5 and Figure 8As shown, it includes: a frame 1, a lifting column 2 is installed in the frame 1, the telescopic end of the lifting column 2 is fixedly connected to a transmission box 3, one side of the transmission box 3 is fixedly connected to a motor 4, the input end of the transmission box 3 is fixedly connected to the output shaft of the motor 4, and the output end of the transmission box 3 is fixedly connected to a first truncated cone wheel 5; an outer sleeve shaft 6, which is rotatably connected to the other side of the transmission box 3, one side of the outer sleeve shaft 6 is provided with a spline, and the outer sleeve shaft 6 is spline-connected with a first spline ring 7, the first spline ring 7 and the first truncated cone wheel 5 are connected by friction transmission, and the middle part of the outer sleeve shaft 6 is rotatably connected to a closed disk; a sanding column 8, which is fixed to the outer sleeve shaft 6 away from the transmission box 3, a cavity is provided in the sanding column 8, and a filter membrane 9 is fixedly connected to the inner wall of the sanding column 8; an inner sleeve shaft 11 is rotatably connected to the outer sleeve shaft 6, a first elastic member 10 is fixedly connected between the outer sleeve shaft 6 and the inner sleeve shaft 11, and a turbine 12 is fixedly connected to the lower end of the inner sleeve shaft 11; a grinding barrel 13 is fixedly connected to the closing disk on the outer sleeve shaft 6, and the sanding column 8 is located in the grinding barrel 13; a barrel 14 is arranged on the frame 1; a first adjusting component is arranged on the outer sleeve shaft 6, and is used to change the contact position of the first spline ring 7 and the first frustum wheel 5, and an inclined frustum 71 is fixedly connected to the upper side of the sanding column 8 for guiding the material.

[0023] In the above scheme, a method for detecting the viscosity of the material during the grinding process is proposed, the purpose of which is to detect the viscosity of the material and make the outer sleeve shaft 6 and the inner sleeve shaft 11 rotate relative to each other according to the change in viscosity, thereby adjusting the rotation speed of the sanding column 8; the transmission box 3 is an existing device, and its internal structure is no longer repeated. A pulley belt and a bevel gear set are arranged in the transmission box 3 to realize the transmission of the first frustum wheel 5, and the transmission box 3 can play a fixing role on the outer sleeve shaft 6; the outer sides of the first frustum wheel 5 and the first spline ring 7 are both provided with a rubber layer to increase the friction between the two; the material of the lower outer ring of the closing disk in the middle of the outer sleeve shaft 6 is made of rubber, which is used to contact with the barrel 14 and have a sealing effect, so that during the operation of the sand mill, the barrel 14 is always a sealed environment to prevent the internal material from splashing into the barrel 14 The filter membrane 9 fixed to the inner wall of the cavity of the sand mill column 8 is a fine screen for filtering materials; the first elastic member 10 is a torsion spring, which is used to make the outer sleeve shaft 6 transmit the transmission to the inner sleeve shaft 11; the inner sleeve shaft 11 passes through the grinding barrel 13, and a screen is provided at the part above the grinding barrel 13 and through the inner sleeve shaft 11, which is used to screen the materials; the control console is located on the right side of the frame 1, which is used to adjust the working state of the sand mill; the outer ring of the sand mill column 8 is provided with evenly distributed protrusions for impacting the grinding medium in the grinding barrel 13; grinding medium, such as zirconium oxide beads, is stored between the sand mill column 8 and the grinding barrel 13; the turbine 12 is used to generate negative pressure in the cavity of the sand mill column 8 and draw the ground material in the grinding barrel 13 into the barrel 14.

[0024] like Figure 4-Figure 6As shown, the first adjustment component includes: a spiral column 21, which is splined to the inner sleeve shaft 11, and the spiral column 21 is threadedly connected to the outer sleeve shaft 6; a rotating column 22, which is rotationally connected to the spiral column 21, and the rotating column 22 is slidably connected to the outer sleeve shaft 6; a transmission frame 23, which is fixed to the rotating column 22 and slidably connected to the transmission box 3, and the transmission frame 23 is rotationally connected to the first spline ring 7, and the transmission frame 23 is used to drive the first spline ring 7 to move, thereby changing the transmission ratio between the first spline ring 7 and the first frustum wheel 5.

[0025] In the above scheme, the purpose is to reduce the excessive loss caused by excessive collision of the grinding medium in the grinding barrel 13 and to increase the overall service life of the sand mill; the lower part of the spiral column 21 is a spline, and the spline part of the spiral column 21 is located on the inner side of the inner sleeve shaft 11. The upper part of the spiral column 21 is threadedly connected to the outer sleeve shaft 6, so that the spiral column 21 can slide up and down during the relative rotation of the outer sleeve shaft 6 and the inner sleeve shaft 11, so that the transmission frame 23 can change the transmission ratio of the first spline ring 7 and the first frustum wheel 5, and then adjust the rotation speed of the sanding column 8; the transmission frame 23 is rotatably connected to the upper and lower sides of the first spline ring 7, so that the transmission frame 23 to the first spline ring 7 is more stable.

[0026] Working principle: When using this device to grind a high molecular polymer (hereinafter referred to as a material instead of a high molecular polymer), the operator first adds grinding media into the grinding barrel 13, and fills the material into the barrel 14, pushes the barrel 14 and fixes it under the grinding barrel 13, and then the operator operates on the console, first starts the lifting column 2, the telescopic end of the lifting column 2 drives the transmission box 3 to move downward, and the transmission box 3 drives all parts thereon to move downward, and in the process of the grinding barrel 13 moving into the barrel 14 and gradually penetrating into the material, the material in the barrel 14 gradually pours into the grinding barrel 13, and when the material passes through the inclined table 71, the material flows downward along the inclined table 71, and the inclined table 71 guides the material and gradually disperses the material, thereby increasing the contact area between the material and the grinding media and improving the grinding efficiency. When the closing disk in the middle of 6 contacts the upper side of the barrel 14, the operator closes the lifting column 2 to stop the transmission box 3 and all parts thereon from moving downward. At this time, the operator starts the motor 4, and the motor 4 drives the first frustum wheel 5 to rotate through the transmission box 3. The first frustum wheel 5 drives the outer sleeve shaft 6 to rotate through the first spline ring 7. The outer sleeve shaft 6 drives the sanding column 8 and the first elastic member 10 to rotate. The first elastic member 10 drives the inner sleeve shaft 11 to rotate. The inner sleeve shaft 11 drives the turbine 12 to rotate. The sanding column 8 and the turbine 12 drive the material in the barrel 14 to generate a vortex, which has a stirring effect on the material. During the rotation of the sanding column 8, the sanding column 8 hits the grinding medium in the grinding barrel 13, so that the grinding medium in the grinding barrel 13 moves toward the inner wall of the grinding barrel 13. During the movement of the grinding medium, the material is hit and sheared, thereby grinding the material.

[0027] During the rotation of the turbine 12, the negative pressure generated by the rotation of the turbine 12 draws out the material in the cavity of the sanding column 8, and the material in the grinding barrel 13 flows into the cavity of the sanding column 8 after being filtered by the filter membrane 9. The material drawn out from the cavity of the sanding column 8 returns to the barrel 14 and mixes with the material in the barrel 14. The material in the barrel 14 is poured into the grinding barrel 13, thereby completing the flow circuit of the material, and then the grinding is continuously circulated until the specified grinding time is reached. The operator turns off the motor 4 and starts the lifting column 2 to move the transmission box 3 and all parts thereon upward for reset. After completing the reset operation, the operator turns off the lifting column 2 to end the material grinding. The operator pushes the barrel 14 to collect and store the material ground by the barrel 14.

[0028] During the rotation of the sanding column 8 and the turbine 12, the fluid resistance encountered by the turbine 12 is large because of the high initial viscosity of the material. As the fluid resistance encountered by the turbine 12 increases, the outer sleeve shaft 6 and the inner sleeve shaft 11 rotate relative to each other and a speed difference occurs between the two. The first elastic member 10 begins to accumulate force, and the inner sleeve shaft 11 drives the spiral column 21 to rotate, and causes the spiral column 21 and the outer sleeve shaft 6 to rotate relative to each other, so that the spiral column 21 moves upward along the thread of the outer sleeve shaft 6, and the spiral column 21 drives the rotating column 22 to move upward, and the rotating column 22 drives the first spline ring 7 to slide upward through the transmission frame 23, so that the first spline ring 7 and the outer sleeve shaft 6 rotate relative to each other. The contact area of ​​the first conical wheel 5 changes, thereby increasing the transmission ratio of the first spline ring 7 and the first conical wheel 5, and then increasing the rotation speed of the sanding column 8 according to the viscosity of the material in the barrel 14, increasing the impact force of the sanding column 8 on the grinding medium, and reducing the influence of fluid resistance on the shearing and impacting material of the grinding medium. When the fluid resistance encountered by the rotation of the turbine 12 is equal to the torsional force of the first elastic member 10, the outer sleeve shaft 6 and the inner sleeve shaft 11 stop relative rotation, the contact area between the first spline ring 7 and the first conical wheel 5 stops changing, and the rotation speed of the sanding column 8 stops changing, so that the rotation speed of the sanding column 8 can be adjusted according to the viscosity of the fluid in the barrel 14.

[0029] As the grinding time increases, the material gradually disperses, the agglomeration effect between the materials becomes smaller and smaller, and the adhesion between the materials becomes smaller and smaller, thereby causing the viscosity of the material to gradually decrease, and the resistance of the turbine 12 becomes smaller. Under the elastic force of the first elastic member 10, the relative rotation angle of the outer sleeve shaft 6 and the inner sleeve shaft 11 gradually decreases, and the spiral column 21 moves downward along the thread of the outer sleeve shaft 6 and drives the rotating column 22 to move downward. The rotating column 22 drives the first spline ring 7 to slide downward through the transmission frame 23, so that the contact area between the first spline ring 7 and the first frustum wheel 5 changes, thereby reducing the transmission ratio of the first spline ring 7 and the first frustum wheel 5, reducing the rotation speed of the sanding column 8, and making the rotation speed of the sanding column 8 slow down as the viscosity of the material decreases. The impact force of the sanding column 8 hitting the grinding medium is reduced, so that the impact force of the grinding medium on the grinding barrel 13 is weakened, thereby reducing the loss of the grinding barrel 13 and improving the service life of the device.

[0030] The grinding media will adhere to the inner wall of the sand mill barrel 13 under the action of centrifugal force, resulting in insufficient contact between the grinding media and the material, affecting the grinding effect of the sand mill 13, and further reducing the grinding efficiency of the sand mill. Example

[0031] Based on the first embodiment, Figure 8 and Fig.10 As shown, it also includes: an inner toothed disc 31, which is rotatably connected to the upper side of the grinding barrel 13, and a scraper 32 is fixed to the inner toothed disc 31, and the scraper 32 is used to scrape the grinding medium on the inner wall of the grinding barrel 13; a driving component is arranged on the lower side of the transmission box 3, and is used to drive the inner toothed disc 31 to rotate.

[0032] In the above scheme, a method for scraping the grinding medium on the inner wall of the grinding barrel 13 is proposed, so that the probability of the grinding medium being adhered to the sticky material during the grinding process of the device can be reduced, thereby improving the grinding effect and grinding efficiency; the inner toothed disc 31 is located on the upper side of the grinding barrel 13, and the inner toothed disc 31 and the upper side of the grinding barrel 13 form a sealed space to prevent the material and the grinding medium from affecting the transmission of the inner toothed disc 31.

[0033] like Figure 4-Figure 8As shown, the driving assembly includes: a second truncated cone wheel 41, which is rotatably connected to the closed disk in the middle of the outer sleeve shaft 6 and is connected to the first truncated cone wheel 5 through a universal joint; a support frame 42, which is fixed to the transmission box 3, and a spline column 43 is rotatably connected to the support frame 42, and a first gear 431 is fixed to one side of the spline column 43; a second spline ring 44 is slidably connected to the spline column 43, and the second spline ring 44 is connected to the second truncated cone wheel 41 through friction transmission; a reduction box 45, which is fixed to the support frame 42, and a second gear 451 is fixed to the input end of the reduction box 45, and the first gear 431 is fixed to the input end of the reduction box 45. Meshed with the second gear 451; the trigger gear 46 is rotatably connected to the closed disk on the outer sleeve shaft 6; the transmission shaft 47 is rotatably connected to the closed disk on the outer sleeve shaft 6 and is rotatably connected to the grinding barrel 13, and spur gears are fixedly connected to both ends of the transmission shaft 47, and the transmission shaft 47 is respectively meshed with the trigger gear 46 and the internal gear disk 31 through the spur gears thereon; the trigger assembly is arranged on the reduction box 45, and is used to drive the trigger gear 46 to rotate; the second adjustment assembly is arranged on the transmission box 3, and is used to adjust the contact position of the second frustum wheel 41 and the second spline ring 44.

[0034] In the above scheme, a method of driving the scraper 32 to rotate is proposed. The scraper 32 and the sanding column 8 are powered by the same power source, so that the rotation of the scraper 32 and the sanding column 8 is more coordinated, and the internal space of the sanding machine is saved, and the energy consumption cost is reduced; the outer ring of the second frustum wheel 41 and the second spline ring 44 are both made of rubber material, which increases friction and improves transmission efficiency; the reducer 45 is used to reduce the transmission of the second frustum wheel 41, and the reduction gear can be adjusted manually, so as to more conveniently adjust the corresponding rotation frequency of the scraper 32 for different materials, thereby improving work efficiency and the scope of application of the device.

[0035] like Figure 7 and Fig. 9 As shown, the trigger assembly includes: a rotating disk 52, which is fixedly connected to the trigger gear 46, a second elastic member 51 is fixedly connected between the output end of the reduction box 45 and the rotating disk 52, and a protruding column 521 is fixedly connected to the rotating disk 52; a trigger disk 53, which is fixedly connected to the support frame 42, and a spring block 54 is provided on the trigger disk 53, and the spring block 54 limits the protruding column 521, and the transmission ratio of the spur gear on the upper side of the transmission shaft 47 and the trigger gear 46 is the same as the transmission ratio of the spur gear on the lower side of the transmission shaft 47 and the inner gear disk 31.

[0036] In the above scheme, a method of making the rotating disk 52 rotate intermittently is proposed, so that the scraper 32 can quickly complete the rotation action, thereby increasing the degree of disorder of the material and grinding medium in the grinding barrel 13; the second elastic member 51 is a torsion spring; the spur gear on the transmission shaft 47 has the same transmission ratio as the trigger gear 46 and the inner gear disk 31, so that the trigger component can be triggered once to drive the scraper 32 to rotate one circle, thereby ensuring the scraping effect of the scraper 32 on the material and grinding medium on the inner wall of the grinding barrel 13, thereby improving the scraping rate of the scraper 32 for the grinding medium and material adhering to the inner wall of the grinding barrel 13.

[0037] like Figure 5 and Figure 6 As shown, the second adjustment assembly includes: an adjustment clamp 81 fixed to the transmission frame 23, and the adjustment clamp 81 is rotatably connected to the second spline ring 44.

[0038] In the above scheme, a method for adjusting the rotation frequency of the scraper 32 is proposed, which is used to enable the scraper 32 to be adaptively adjusted according to the viscosity of the material, thereby reducing the impact on the rotation stability of the grinding barrel 13 while reducing the amount of grinding media adhering to the inner wall of the grinding barrel 13; the adjustment clamp 81 is rotatably connected to the upper and lower sides of the second spline ring 44, so that the transmission of the second spline ring 44 by the adjustment clamp 81 is more stable; the second frustum wheel 41 and the first frustum column 5 have the same orientation, which is used to make the adjustment effects of the first adjustment component and the second adjustment component the same.

[0039] like Figure 8 , Fig.10 and Fig.11 As shown, a plurality of spaced limiting plates 61 are fixedly connected to the upper side of the scraper 32. The limiting plates 61 are used to push the grinding medium. The projection of the scraper 32 in the vertical direction is a complete circular ring.

[0040] In the above scheme, a method of guiding the grinding medium pushed by the scraper 32 during rotation is proposed, so as to make the distribution of the grinding medium inside the grinding barrel 13 more uniform, thereby making the material grinding quality more uniform. Moreover, since the distribution of the grinding medium inside the grinding barrel 13 is more uniform, the stability of the grinding barrel 13 during rotation can be improved, and the stability of the sand mill during operation can be improved.

[0041] Working principle: During the rotation of the first truncated cone wheel 5, the first truncated cone wheel 5 drives the second truncated cone wheel 41 to rotate through the universal joint, the second truncated cone wheel 41 drives the second spline ring 44 to rotate, the second spline ring 44 drives the spline column 43 to rotate, the spline column 43 drives the second gear 451 to rotate through the first gear 431, the power of the second gear 451 is transmitted to the second elastic member 51 after being decelerated by the reduction box 45, and because the spring block 54 limits the boss 521, the output shaft of the reduction box 45 cannot drive the rotating disk 52 to rotate through the second elastic member 51, and the second elastic member 51 gradually twists and accumulates force. As the output shaft of the reduction box 45 rotates, when the torsional force of the second elastic member 51 is greater than the elastic force of the spring block 54, the boss 5 21 pushes the spring block 54 so that the spring block 54 releases the limit on the protruding column 521, and the second elastic member 51 drives the rotating disk 52 to rotate. After the protruding column 521 passes through the spring block 54, the spring block 54 is reset, and the rotating disk 52 drives the trigger gear 46 to rotate, and the trigger gear 46 drives the transmission shaft 47 to rotate. The transmission shaft 47 drives the inner toothed disk 31 to rotate through the spur gear thereon, and the inner toothed disk 31 drives the scraper 32 to rotate. When the scraper 32 rotates one circle, the rotating disk 52 also rotates one circle, and the protruding column 521 contacts and squeezes the spring block 54 again, and limits the protruding column 521, so that the rotating disk 52 stops rotating, and the second elastic member 51 starts to accumulate force again, and then the above actions are cycled, and the above process is repeated to perform intermittent rotation of the scraper 32.

[0042] During the rotation of the scraper 32, the scraper 32 pushes the grinding media and materials adhered to the inner wall of the grinding barrel 13 upward and scrapes the inner wall of the grinding barrel 13. When the scraper 32 pushes the grinding media and materials adhered to the inner wall of the grinding barrel 13 to move upward, the limiting plate 61 guides part of the grinding media and materials of the scraper 32, so that the grinding media and materials are pushed away from the scraper 32 by the limiting plate 61 and enter the materials in the grinding barrel 13 during the process of moving upward with the scraper 32, so that the grinding media are more evenly distributed in the grinding barrel 13, thereby increasing the contact area between the grinding media and the materials, thereby avoiding uneven distribution of the grinding media in the grinding barrel 13 resulting in uneven grinding of the materials, reducing the probability of the grinding barrel 13 reducing the grinding quality of the materials, and improving the stability of the sand mill during operation.

[0043] When the transmission frame 23 adjusts the first spline ring 7, the transmission frame 23 drives the adjustment clamp 81 to move, and the adjustment clamp 81 drives the second spline ring 44 to move, so that the contact position between the second frustum wheel 41 and the second spline ring 44 changes, thereby changing the transmission ratio of the second frustum wheel 41 and the second spline ring 44. When the viscosity of the material is large, the rotation speed of the second spline ring 44 increases, thereby increasing the rotation speed of the output end of the reducer 45, shortening the storage time of the second elastic member 51, increasing the trigger frequency of the rotating disk 52, and increasing the rotation frequency of the scraper 32. According to the above principle, when the viscosity of the material is small, the rotation frequency of the scraper 32 is slowed down, so that the rotation frequency of the scraper 32 can be adjusted as the viscosity of the material changes, thereby cleaning the grinding medium on the inner wall of the grinding barrel 13. When the viscosity of the material is large, the accumulation of the grinding medium adhering to the inner wall increases rapidly, and the rotation frequency of the scraper 32 is high. As the grinding time increases, the viscosity of the material gradually decreases, and the growth rate of the accumulation of the grinding medium adhering to the inner wall gradually slows down, thereby gradually reducing the rotation frequency of the scraper, further reducing the impact on the working stability of the grinding barrel 13.

[0044] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A vertical sand mill for preparing a suspension agent, characterized in that: Included are: A frame (1), wherein a lifting column (2) is installed in the frame (1), a transmission box (3) is fixedly connected to the telescopic end of the lifting column (2), a motor (4) is fixedly connected to one side of the transmission box (3), an input end of the transmission box (3) is fixedly connected to an output shaft of the motor (4), and a first round table wheel (5) is fixedly connected to the output end of the transmission box (3); An outer sleeve shaft (6) is rotatably connected to the other side of the transmission box (3); a spline is provided on one side of the outer sleeve shaft (6); a first spline ring (7) is splined on the outer sleeve shaft (6); the first spline ring (7) and the first round cone wheel (5) are connected via friction transmission; and a closed disk is rotatably connected to the middle of the outer sleeve shaft (6); A sanding column (8) is fixedly connected to a side of the outer sleeve shaft (6) away from the transmission box (3), a cavity is provided in the sanding column (8), and a filter membrane (9) is fixedly connected to the inner wall of the sanding column (8); An inner sleeve shaft (11) is rotatably connected to the outer sleeve shaft (6), a first elastic member (10) is fixedly connected between the outer sleeve shaft (6) and the inner sleeve shaft (11), and a turbine (12) is fixedly connected to the lower end of the inner sleeve shaft (11); A grinding barrel (13), a closed disc fixedly connected to the outer sleeve shaft (6), the sanding column (8) being located inside the grinding barrel (13); A barrel (14) is arranged on the frame (1); A first adjustment component is arranged on the outer sleeve shaft (6) and is used to change the contact position between the first spline ring (7) and the first frustum wheel (5).

2. A vertical sand mill for preparing a suspension according to claim 1, characterized in that: An inclined truncated table (71) is fixedly connected to the upper side of the sanding column (8) for guiding the material.

3. A vertical sand mill for preparing a suspension according to claim 1, characterized in that: The first adjustment component includes: A spiral column (21) is spline-connected to the inner sleeve shaft (11), and the spiral column (21) is threadedly connected to the outer sleeve shaft (6); A rotating column (22) is rotatably connected to the spiral column (21), and the rotating column (22) is slidably connected to the outer sleeve shaft (6); A transmission frame (23) is fixedly connected to the rotating column (22) and is slidably connected to the transmission box (3). The transmission frame (23) is rotatably connected to the first spline ring (7). The transmission frame (23) is used to drive the first spline ring (7) to move, thereby changing the transmission ratio between the first spline ring (7) and the first frustum wheel (5).

4. A vertical sand mill for preparing a suspension according to claim 3, characterized in that: Also included are: An inner toothed disc (31) is rotatably connected to the upper side of the grinding barrel (13); a scraper (32) is fixedly connected to the inner toothed disc (31); the scraper (32) is used to scrape the grinding medium on the inner wall of the grinding barrel (13); A driving assembly is arranged on the lower side of the transmission box (3) and is used to drive the inner gear disc (31) to rotate.

5. A vertical sand mill for preparing a suspension according to claim 4, characterized in that: The drive assembly comprises: A second truncated cone wheel (41) is rotatably connected to a closed disk in the middle of the outer sleeve shaft (6) and is connected to the first truncated cone wheel (5) via a universal joint; A support frame (42) is fixedly connected to the transmission box (3); a spline column (43) is rotatably connected to the support frame (42); a first gear (431) is fixedly connected to one side of the spline column (43); A second spline ring (44) is slidably connected to the spline column (43), and the second spline ring (44) is connected to the second cone wheel (41) through friction transmission; A reduction box (45) is fixedly connected to the support frame (42); a second gear (451) is fixedly connected to an input end of the reduction box (45); and the first gear (431) is meshed with the second gear (451); A trigger gear (46) rotates a closing disk connected to the outer sleeve shaft (6); A transmission shaft (47) is rotationally connected to the closing disk on the outer sleeve shaft (6) and is rotationally connected to the grinding barrel (13). Both ends of the transmission shaft (47) are fixedly connected with spur gears. The transmission shaft (47) is meshed with the trigger gear (46) and the inner gear disk (31) through the spur gears thereon for transmission. A trigger assembly, disposed on the reduction box (45), and used to drive the trigger gear (46) to rotate; A second adjustment component is arranged on the transmission box (3) and is used to adjust the contact position between the second truncated cone wheel (41) and the second spline ring (44).

6. A vertical sand mill for preparing a suspension according to claim 5, characterized in that: The transmission ratio between the spur gear on the upper side of the transmission shaft (47) and the trigger gear (46) is the same as the transmission ratio between the spur gear on the lower side of the transmission shaft (47) and the internal gear disc (31).

7. A vertical sand mill for preparing a suspension according to claim 5, characterized in that: The trigger component includes: A rotating disk (52) is fixedly connected to the trigger gear (46); a second elastic member (51) is fixedly connected between the output end of the reduction box (45) and the rotating disk (52); and a convex column (521) is fixedly connected to the rotating disk (52); The trigger plate (53) is fixedly connected to the support frame (42), and a spring block (54) is provided on the trigger plate (53), and the spring block (54) limits the position of the boss (521).

8. A vertical sand mill for preparing a suspension according to claim 5, characterized in that: The second adjustment component includes: An adjusting clamp (81) is fixedly connected to the transmission frame (23), and the adjusting clamp (81) is rotatably connected to the second spline ring (44).

9. A vertical sand mill for preparing a suspension according to claim 8, characterized in that: A plurality of spaced-apart limiting plates (61) are fixedly connected to the upper side surface of the scraper (32), and the limiting plates (61) are used to push the grinding medium.

10. A vertical sand mill for preparing a suspension according to claim 9, characterized in that: The projection of the scraper (32) in the vertical direction is a complete circular ring.

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