Three-roller grinding machine

Abstract

The three-roller grinding machine comprises a grinding roller set, a transmission assembly and a grinding motor, the grinding motor is installed in an inner cavity of a lower box body, the output end of the grinding motor is connected with a lower belt wheel, an upper belt wheel is arranged above the lower belt wheel, and the lower belt wheel and the upper belt wheel are in transmission connection through a transmission belt. The transmission belt wraps the surfaces of the lower belt pulley and the upper belt pulley which is in transmission connection with the transmission assembly. And the tensioning regulation and control unit is arranged at the position of the transmission belt, and the tensioning regulation and control unit is used for regulating the tensioning degree of the transmission belt. The tensioning regulation and control unit is designed to adjust the tightness of the transmission belt, so that the transmission belt is prevented from being loosened due to abrasion, aging and the like, the loose transmission belt is prevented from influencing the transmission efficiency between the lower belt wheel and the upper belt wheel, the utilization rate of the grinding motor can be increased, and the energy consumption of the grinding motor is reduced; and the use cost of the three-roller grinding machine is reduced, so that the production and processing cost of pigment grinding processing is reduced.

Description

Technical Field

[0001] This invention relates to the field of grinding, and more particularly to a three-roll mill. Background Technology

[0002] A three-roll mill is a device that uses three horizontally arranged rollers to grind and disperse high-viscosity materials through mutual extrusion and friction at different speeds. It achieves fine processing of materials by generating shearing force through the differential rotation of the three rollers. The three rollers are horizontally installed with their rotational speeds increasing sequentially from back to front (typically 1:3:9 or a similar ratio). Material is added between the middle and rear rollers, and after high-speed friction and extrusion, it is scraped off by the scraper on the front roller, completing the grinding cycle. The high pressure generated by the mutual extrusion of the roller surfaces, combined with the shearing force created by the differential rotation, breaks down the internal molecular structure of the material particles, achieving rapid pulverization and dispersion. Three-roll mills are widely used in various industrial fields such as paint, ink, pigment, plastics, cosmetics, food, and pharmaceuticals.

[0003] Pigment grinding is a crucial step in pigment processing and application. It involves refining pigment particles and improving dispersibility through physical or chemical means, thereby enhancing pigment performance and application effects. Grinding can strengthen the pigment's tinting strength, increase its hiding power, optimize its gloss, prevent pigment particle agglomeration, improve the stability of pigment particles, make the pigment adaptable to different media, reduce pigment viscosity, improve pigment flowability, control the particle size distribution of pigment particles, and make the pigment particles adaptable to various pigment processing techniques.

[0004] In pigment grinding, a three-roll mill is generally used. In the Chinese utility model patent entitled "Three-roll mill" with publication number CN209173999U, when the motor drives the grinding rollers to rotate, the rotation directions of two adjacent grinding rollers are opposite. The pigment paste is added to the feed trough, and the grinding effect is achieved by the mutual extrusion of the surfaces of the first, second, and third grinding rollers. However, in the above application and the prior art, the power transmission between the three grinding rollers and the motor output shaft is achieved by belt drive or other means. Belt drive and other means have large power losses due to wear and other factors, resulting in low motor utilization, increased energy consumption of the motor, and increased operating costs of the three-roll mill. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the defect of low motor utilization in the prior art and to provide a three-roll mill.

[0006] The present invention solves the above-mentioned technical problems through the following technical solution:

[0007] This invention provides a three-roll mill, comprising a lower housing and an upper housing, wherein two upper housings are connected to the top of the lower housing.

[0008] The grinding roller assembly and the transmission assembly are provided. The grinding roller assembly is located between two upper housings. The end faces of the grinding roller assembly are respectively connected to the transmission assembly. The transmission assembly is located in the inner cavity of the upper housing.

[0009] A grinding motor is installed in the inner cavity of the lower housing. The output end of the grinding motor is connected to a lower pulley. An upper pulley is arranged diagonally above the lower pulley. The lower pulley and the upper pulley are connected by a transmission belt. The transmission belt wraps around the surfaces of the lower pulley and the upper pulley. The upper pulley is connected to a transmission assembly.

[0010] The feeding module is located on one side of the grinding roller assembly, and its two sides are connected to the lower box and the upper box, respectively.

[0011] The tension control unit is located at the transmission belt and is connected to one side of the lower housing and the upper housing. The tension control unit, the lower pulley, and the upper pulley are all located in the inner cavity of the protective housing. The protective housing is connected to one side of the lower housing and the upper housing. The tension control unit is used to adjust the tension of the transmission belt.

[0012] The tension control unit includes an adjustment guide group, one end of which is connected to the safety control component, the side of the safety control component away from the adjustment guide group is connected to the distance control component, the side of the distance control component is connected to the movement component, and the movement component is connected to the inner wall of the lower housing.

[0013] In this technical solution, an adjusting guide group is designed to participate in the belt drive between the lower and upper pulleys. The distance control component allows adjustment of the distance between the adjusting guide group and the lower housing, ensuring that the adjusting guide group, the lower pulley, and the upper pulley where the drive belt is mounted are on the same horizontal plane. The lateral position of the adjusting guide group can be adjusted by a moving component, allowing the adjusting guide group to adjust the tension of the drive belt. This prevents the drive belt from loosening due to wear or aging, thus preventing a loose drive belt from affecting the transmission efficiency between the lower and upper pulleys. This improves the utilization rate of the grinding motor, reduces its energy consumption, lowers the operating cost of the three-roll mill, and consequently reduces the production and processing costs of pigment grinding.

[0014] Preferably, the grinding roller assembly includes a slow roller, a medium-speed roller, and a fast roller, which are arranged sequentially, with the fast roller located closer to the feeding module. The end faces of the slow roller, the medium-speed roller, and the fast roller are respectively connected to the transmission assembly.

[0015] The slow-speed roller, medium-speed roller, and fast-speed roller are rotatably connected at both ends to bearing connecting seats, which are located in the inner cavity of the upper housing.

[0016] In this technical solution, the pigment is ground using a grinding roller assembly.

[0017] Preferably, the transmission assembly includes a fast gear, and both ends of the fast roller are connected to fast gears, wherein the side of the fast gear at one end is meshed with a transmission gear, and one end of the transmission gear is connected to one end of the upper pulley.

[0018] Both ends of the medium-speed roller are connected to medium-speed gears, and the side of the medium-speed gear at one end meshes with the side of the fast gear away from the transmission gear.

[0019] One end of the fast roller is connected to a slow gear, which meshes with a transmission gear located away from the fast gear.

[0020] In this technical solution, the force of the grinding motor can be transmitted to the grinding roller assembly through the transmission component, thereby driving the grinding roller assembly to run.

[0021] Preferably, the feeding module includes a support frame, both ends of which are connected to the lower housing, and a hopper is connected to the top side of the support frame;

[0022] An installation plate is provided on one side of the hopper, and the two ends of the installation plate are respectively connected to the upper box. A scraper is connected to one side of the installation plate, and the scraper contacts the surface of the high-speed roller.

[0023] In this technical solution, the feeding module facilitates the feeding of materials into the three-roll mill.

[0024] Preferably, the adjusting guide assembly includes a first guide wheel and a second guide wheel. The first guide wheel has a positioning groove on its side, and the second guide wheel has an anti-detachment stabilizing ring connected to its side. The anti-detachment stabilizing ring is disposed in the positioning groove.

[0025] The first guide wheel and the second guide wheel are rotatably connected to the surfaces of two fixed shafts, respectively.

[0026] In this technical solution, the transmission belt is guided by adjusting the guide group, and the tension of the transmission belt is adjusted by adjusting the position of the guide group.

[0027] Preferably, the security control component includes a security control frame, a fixed block connected to the inner side of the security control frame, and a movable block slidably connected to the inner side of the security control frame. The fixed block and the movable block are respectively connected to one end of two fixed shafts.

[0028] The fixed block is connected to a plurality of guide shafts on one side, and the surface of the guide shafts is slidably connected to the movable block through the block.

[0029] In this technical solution, the safety control component facilitates the installation and removal of the transmission belt from the adjustment guide assembly.

[0030] Preferably, a pull column is connected to one side of the movable block, the surface of the pull column is slidably connected to one side of the security frame, and a pull handle is connected to the end of the pull column away from the movable block;

[0031] Both sides of the pull handle are connected to locking plates, which are detachably connected to one side of the security frame by locking bolts.

[0032] In this technical solution, the position of the first guide wheel can be easily moved and locked by using structures such as a pull handle and a locking bolt.

[0033] Preferably, the distance control component includes a control frame, and a plurality of cross control frames are provided between the control frame and the security frame. Each of the cross control frames is rotatably connected to a rotating connecting seat at both ends, and the rotating connecting seats on both sides are respectively connected to two symmetrically distributed mounting plates.

[0034] The mounting slide plate on one side is slidably connected to the surface of the positioning column, and positioning plates are connected to both ends of the positioning column. One side of the positioning plate is connected to one side of the security control frame.

[0035] On the other side, the mounting plate is threadedly connected to the surface of the control bidirectional stud. One end of the control bidirectional stud is rotatably connected to the inner wall of one side of the control frame, and the other end of the control bidirectional stud is rotatably connected to the other side of the control frame. The end of the control bidirectional stud away from the control frame is connected to the output end of the control power source, and the control power source is connected to the outside of the control frame.

[0036] A flexible protective cover is provided on the outside of the rotating connector, and the two ends of the flexible protective cover are respectively connected to the control frame and the security frame.

[0037] In this technical solution, the distance control component is designed to control the distance between the lower housing and the adjusting guide group, thereby making the adjusting guide group easy to adapt to the lower pulley and the upper pulley.

[0038] Preferably, the movable component includes a mounting frame connected to the inner wall of the lower housing, and a plurality of track shafts connected to the inner wall of the mounting frame, with a support plate slidably connected through the surface of each track shaft.

[0039] The support plate is connected to a plurality of connecting strips on one side. The surface of the connecting strips is slidably connected to one side of the mounting frame and the lower housing. The side of the connecting strip away from the support plate is connected to one side of the control frame.

[0040] A telescopic device is connected to one side of the support plate, and one end of the telescopic device is connected to the inner wall of the mounting frame.

[0041] In this technical solution, the lateral position of the adjusting guide group can be adjusted by using a movable component, thereby controlling the tension of the transmission belt.

[0042] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of the present invention.

[0043] The positive and progressive effects of this invention are as follows:

[0044] This invention designs an adjusting guide group to participate in the belt drive between the lower and upper pulleys. A distance control component allows adjustment of the distance between the adjusting guide group and the lower housing, ensuring the adjusting guide group, the lower pulleys, and the drive belt mounting positions on the same horizontal plane. A movable component adjusts the lateral position of the adjusting guide group, enabling it to adjust the tension of the drive belt. This prevents belt wear and aging from causing loosening, thus preventing a loose drive belt from affecting the transmission efficiency between the lower and upper pulleys. This improves the utilization rate of the grinding motor, reduces its energy consumption, extends the service life of the drive belt, and lowers the operating cost of the three-roll mill, thereby reducing the production and processing costs of pigment grinding.

[0045] Furthermore, the assembly and disassembly components facilitate the installation and removal of the grinding motor, and can also be used to dampen the grinding motor and reduce its operating noise. The assembly and disassembly components can be adjusted to change the position of the grinding motor and the position of the lower pulley, thereby accommodating different lengths of drive belts, expanding the range of drive belts applicable to the three-roll mill, and improving the flexibility of the three-roll mill in use.

[0046] Furthermore, the support and lubrication components allow for smoother movement of the assembly and disassembly components and the grinding motor, preventing difficulties in moving the assembly and disassembly components due to the large mass of the grinding motor, thus facilitating the adjustment of the grinding motor's position. Attached Figure Description

[0047] Figure 1 This is a schematic diagram of the structure of a three-roll mill according to an embodiment of the present invention.

[0048] Figure 2 for Figure 1 The diagram shows the overall three-dimensional structure of the three-roll mill.

[0049] Figure 3 for Figure 1 The diagram shows the three-dimensional structure of the grinding roller assembly, transmission components, upper pulley, and feeding module of the three-roll mill. Figure 1 .

[0050] Figure 4 for Figure 3 The diagram shows the three-dimensional structure of the grinding roller assembly, transmission components, upper pulley, and feeding module of the three-roll mill. Figure 2 .

[0051] Figure 5 for Figure 3 The diagram shows the structure of the feeding module of the three-roll mill.

[0052] Figure 6 for Figure 1 The diagram shows a three-dimensional structure of the lower pulley, drive belt, upper pulley, and tension control unit of the three-roll mill.

[0053] Figure 7 for Figure 6 The diagram shows a cross-sectional view of the pulleys, drive belt, upper pulley, and tension control unit of the three-roll mill.

[0054] Figure 8 for Figure 6 The diagram shows the three-dimensional structure of the distance control component and the movement component of the three-roll mill. Figure 1 .

[0055] Figure 9 for Figure 8 The diagram shows the three-dimensional structure of the distance control component and the movement component of the three-roll mill. Figure 2 .

[0056] Figure 10 for Figure 6 The diagram shows a three-dimensional structure of the adjustment guide assembly of a three-roll mill.

[0057] Figure 11 for Figure 10 The diagram shows a cross-sectional view of the adjusting guide assembly of the three-roll mill.

[0058] Figure 12 for Figure 1 The diagram shows a three-dimensional structure of the support unit and grinding motor of the three-roll mill.

[0059] Figure 13 for Figure 12 The diagram shows a three-dimensional structural diagram of the support unit of the three-roll mill.

[0060] Figure 14 for Figure 12 The diagram shows a front cross-sectional view of the support unit of the three-roll mill.

[0061] Figure 15 for Figure 12 The diagram shows a side view of the support unit of the three-roll mill.

[0062] Explanation of reference numerals in the attached figures

[0063] 1. Lower box;

[0064] 2. Upper box;

[0065] 3. Grinding roller assembly; 31. Slow-speed roller; 32. Medium-speed roller; 33. High-speed roller; 34. Bearing connecting seat; 35. Adjusting screw; 36. Adjusting handwheel;

[0066] 4. Transmission components; 41. High-speed gear; 42. Transmission gear; 43. Medium-speed gear; 44. Low-speed gear;

[0067] 5. Grinding motor;

[0068] 6. Lower pulley;

[0069] 7. Drive belt;

[0070] 8. Install the pulley;

[0071] 9. Feeding module; 91. Support frame; 92. Feeding hopper; 93. Mounting plate; 94. Feeding scraper;

[0072] 10. Protective casing;

[0073] 11. Adjustable guide assembly; 111. First guide wheel; 112. Second guide wheel; 113. Anti-detachment stabilizing ring; 114. Fixed shaft;

[0074] 12. Security control components; 121. Security control frame; 122. Fixing block; 123. Guide shaft; 124. Moving block; 125. Pull column; 126. Pull handle; 127. Locking plate; 128. Locking bolt;

[0075] 13. Distance control assembly; 131. Control frame; 132. Cross control bracket; 133. Rotary connecting seat; 134. Mounting slide; 135. Positioning post; 136. Positioning plate; 137. Control bidirectional stud; 138. Control power source; 139. Limit post;

[0076] 14. Moving components; 141. Mounting frame; 142. Track shaft; 143. Support plate; 144. Connecting strip; 145. Telescopic device;

[0077] 15. Flexible protective cover belt;

[0078] 16. Assembly / Disassembly of components; 161. Mounting bracket; 162. Vibration damping pad; 163. Adjustment plate; 164. Assembly / Disassembly of two-way studs; 165. Assembly / Disassembly of frame; 166. Fixed track; 167. Reinforcing plate; 168. Reinforcing bolts;

[0079] 17. Adaptive components; 171. Disassembly and assembly frame; 172. Positioning rail; 173. Adaptive plate; 174. Through strip; 175. Lifting device;

[0080] 18. Support lubrication assembly; 181. Oil reservoir support housing; 182. Ball cage; 183. Supporting balls; 184. Oil collection support housing;

[0081] 19. Flexible dustproof belt. Detailed Implementation

[0082] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0083] Figures 1 to 15 The diagram shown is a structural schematic of an embodiment of the three-roll mill of the present invention.

[0084] Example 1

[0085] The three-roll mill includes a lower housing 1 and an upper housing 2, with two upper housings 2 connected to the top of the lower housing 1.

[0086] Grinding roller assembly 3 and transmission assembly 4. Grinding roller assembly 3 is located between two upper housings 2. The end faces of grinding roller assembly 3 are respectively connected to transmission assembly 4. Transmission assembly 4 is located in the inner cavity of upper housing 2.

[0087] Grinding motor 5 is installed in the inner cavity of the lower housing 1. The output end of grinding motor 5 is connected to lower pulley 6. Upper pulley 8 is provided diagonally above lower pulley 6. Lower pulley 6 and upper pulley 8 are connected by transmission belt 7. Transmission belt 7 is wrapped around the surface of lower pulley 6 and upper pulley 8. Upper pulley 8 is connected to transmission component 4.

[0088] The feeding module 9 is located on one side of the grinding roller group 3, and its two sides are connected to the lower box 1 and the upper box 2, respectively.

[0089] The tension control unit is located at the transmission belt 7 and is connected to one side of the lower housing 1 and the upper housing 2. The tension control unit, the lower pulley 6 and the upper pulley 8 are all located in the inner cavity of the protective housing 10. The protective housing 10 is connected to one side of the lower housing 1 and the upper housing 2. The tension control unit is used to adjust the tension of the transmission belt 7.

[0090] The tension control unit includes an adjustment guide group 11. One end of the adjustment guide group 11 is connected to the safety control component 12. The side of the safety control component 12 away from the adjustment guide group 11 is connected to the distance control component 13. The side of the distance control component 13 is connected to the moving component 14. The moving component 14 is connected to the inner wall of the lower housing 1.

[0091] In this technical solution, the adjustable guide group 11 is designed to participate in the belt drive between the lower pulley 6 and the upper pulley 8. The distance control component 13 can be used to adjust the distance between the adjustable guide group 11 and the lower housing 1, so that the position of the adjustable guide group 11, the lower pulley 6 and the upper pulley 8 where the transmission belt 7 is installed can be on the same horizontal plane. The lateral position of the adjustable guide group 11 can be adjusted by the moving component 14, so that the adjustable guide group 11 can adjust the tension of the transmission belt 7, avoid the transmission belt 7 from wear, aging and other causes that lead to its loosening, and prevent the loose transmission belt 7 from affecting the transmission efficiency between the lower pulley 6 and the upper pulley 8. This can improve the utilization rate of the grinding motor 5, reduce the energy consumption of the grinding motor 5, make the grinding motor 5 more energy-efficient, reduce the operating cost of the three-roll mill, and thus reduce the production and processing cost of pigment grinding.

[0092] The grinding roller group 3 includes a slow roller 31, a medium-speed roller 32 and a fast roller 33. The slow roller 31, the medium-speed roller 32 and the fast roller 33 are arranged in sequence, and the fast roller 33 is close to the side of the feeding module 9. The end faces of the slow roller 31, the medium-speed roller 32 and the fast roller 33 are respectively connected to the transmission component 4.

[0093] The two ends of the slow roller 31, medium-speed roller 32 and fast roller 33 are rotatably connected to the bearing connecting seat 34, which is located in the inner cavity of the upper housing 2.

[0094] The slow roller 31, medium speed roller 32 and fast speed roller 33 are all rotatably connected to bearing connecting seats 34 at both ends. The bearing connecting seat 34 located in the middle position is fixedly connected to the inner cavity of the upper box 2, and the bearing connecting seats 34 located on both sides are slidably connected to the inner cavity of the upper box 2.

[0095] On the opposite sides of the bearing connecting seats 34 located on both sides, there are adjustable screws 35 rotatably connected. The adjustable screws 35 are threaded to the side of the upper housing 2, and the surface of the adjustable screws 35 penetrates the side of the upper housing 2. The end of the adjustable screws 35 away from the bearing connecting seats 34 is connected to an adjusting handwheel 36.

[0096] A compression spring is connected between two adjacent bearing connecting seats 34.

[0097] In use, rotating the adjusting screw 35 causes the upper housing 2 to move, thereby moving the corresponding bearing connecting seat 34. This, in turn, causes the corresponding slow roller 31 or fast roller 33 to move in the same direction. The distance between the slow roller 31 and the medium roller 32, and between the fast roller 33 and the medium roller 32, can be adjusted to facilitate the grinding of pigments of different particle sizes.

[0098] In this technical solution, the pigment is ground by the grinding roller group 3.

[0099] The transmission assembly 4 includes a fast gear 41. Both ends of the fast roller 33 are connected to the fast gear 41. The side of the fast gear 41 at one end is meshed with the transmission gear 42. One end of the transmission gear 42 is connected to one end of the upper pulley 8.

[0100] Both ends of the medium-speed roller 32 are connected to medium-speed gears 43, and the side of the medium-speed gear 43 at one end meshes with the side of the fast gear 41 that is away from the transmission gear 42.

[0101] One end of the fast roller 33 is connected to a slow gear 44, which meshes with a transmission gear 42 that is away from the fast gear 41.

[0102] In this technical solution, the force of the grinding motor 5 can be transmitted to the grinding roller group 3 through the transmission component 4, thereby driving the grinding roller group 3 to run.

[0103] In use, the grinding motor 5 drives the lower pulley 6 to rotate, which in turn drives the transmission belt 7 to rotate, which in turn drives the upper pulley 8 to rotate, which in turn drives the transmission gear 42 to rotate, which in turn drives the corresponding fast gear 41 to rotate, which then drives the corresponding medium gear 43 to rotate, which in turn drives the corresponding slow gear 44 to rotate. The rotation of the fast gear 41 drives the fast roller 33 to rotate, the rotation of the transmission gear 42 drives the medium roller 32 to rotate, and the rotation of the medium gear 43 drives the slow roller 31 to rotate.

[0104] Then, the material for producing pigment is added between the slow roller 31 and the medium roller 32, and then ground using the slow roller 31 and the medium roller 32, and then ground using the medium roller 32 and the fast roller 33, thereby achieving the grinding of pigment.

[0105] The unloading module 9 includes a support frame 91, with both ends of the support frame 91 connected to the lower housing 1, and a hopper 92 connected to the top side of the support frame 91;

[0106] A mounting plate 93 is provided on one side of the hopper 92. The two ends of the mounting plate 93 are connected to the upper box 2 respectively. A scraper 94 is connected to one side of the mounting plate 93. The scraper 94 is in contact with the surface of the high-speed roller 33.

[0107] In this technical solution, the feeding module 9 facilitates the feeding of materials into the three-roll mill.

[0108] After the pigment production material is ground, the material on the surface of the high-speed roller 33 is scraped off by the scraper 94. The scraped material is guided and collected through the hopper 92 to facilitate the feeding of the three-roll mill.

[0109] The adjusting guide assembly 11 includes a first guide wheel 111 and a second guide wheel 112. The first guide wheel 111 has a positioning groove on its side, and the second guide wheel 112 has an anti-detachment stabilizing ring 113 connected to its side. The anti-detachment stabilizing ring 113 is set in the positioning groove.

[0110] The first guide wheel 111 and the second guide wheel 112 are rotatably connected to the surfaces of the two fixed shafts 114, respectively.

[0111] In this technical solution, the transmission belt 7 is guided by adjusting the guide group 11, and the tension of the transmission belt 7 is adjusted by adjusting the position of the guide group 11.

[0112] The security control component 12 includes a security control frame 121, a fixed block 122 connected to the inner side of the security control frame 121, and a movable block 124 slidably connected to the inner side of the security control frame 121. The fixed block 122 and the movable block 124 are respectively connected to one end of two fixed shafts 114.

[0113] A plurality of guide shafts 123 are connected to one side of the fixed block 122, and the surface of the guide shafts 123 is slidably connected to the movable block 124.

[0114] In this technical solution, the safety control component 12 facilitates the installation and removal of the transmission belt 7 from the adjusting guide assembly 11.

[0115] A pull column 125 is connected to one side of the movable block 124. The surface of the pull column 125 is slidably connected to one side of the security frame 121. A pull handle 126 is connected to the end of the pull column 125 away from the movable block 124.

[0116] Locking plates 127 are connected to both sides of the pull handle 126. The locking plates 127 are detachably connected to one side of the security frame 121 by locking bolts 128.

[0117] In this technical solution, the position of the first guide wheel 111 can be easily moved and locked by using structures such as the pull handle 126 and the locking bolt 128.

[0118] In use, place one side of the transmission belt 7 between the first guide wheel 111 and the second guide wheel 112, and then push the pull handle 126, thereby driving the pull column 125 and the moving block 124 to move in the same direction, which in turn drives the corresponding fixed shaft 114 and the first guide wheel 111 to move in the same direction, so that the first guide wheel 111 contacts the second guide wheel 112. At this time, the anti-detachment stabilizing ring 113 is in the positioning groove opened in the second guide wheel 112, so that one side of the transmission belt 7 is in the position between the first guide wheel 111 and the second guide wheel 112. When the transmission belt 7 rotates, it can drive the first guide wheel 111 or the second guide wheel 112 to rotate around the fixed shaft 114 respectively.

[0119] Then, the locking bolts 128 are installed to fix the locking plate 127 to the side of the security frame 121, thereby locking the position of the moving block 124 and the first guide wheel 111 and other structures.

[0120] When it is necessary to remove the drive belt 7, the first guide wheel 111 is moved away from the second guide wheel 112 by using the opposite method, and then the drive belt 7 can be removed.

[0121] The distance control assembly 13 includes a control frame 131. Multiple cross control frames 132 are arranged between the control frame 131 and the security frame 121. Both ends of the cross control frames 132 are rotatably connected to rotating connecting seats 133. The rotating connecting seats 133 on both sides are respectively connected to two symmetrically distributed mounting plates 134.

[0122] The mounting slide plate 134 on one side is slidably connected to the surface of the positioning post 135. Positioning plates 136 are connected to both ends of the positioning post 135. One side of the positioning plate 136 is connected to one side of the security frame 121.

[0123] The mounting plate 134 on the other side is threadedly connected to the surface of the control bidirectional stud 137. One end of the control bidirectional stud 137 is rotatably connected to the inner wall of one side of the control frame 131, and the other end of the control bidirectional stud 137 is rotatably connected to the other side of the control frame 131. The end of the control bidirectional stud 137 away from the control frame 131 is connected to the output end of the control power source 138, and the control power source 138 is connected to the outside of the control frame 131.

[0124] A flexible protective cover 15 is provided on the outside of the rotating connector 133, and the two ends of the flexible protective cover 15 are connected to the control frame 131 and the security frame 121 respectively.

[0125] The cross control frame 132 consists of two cross-distributed strips, with a through-pin rotatably connecting the two strips in the middle, and a rotating connecting seat 133 rotatably connected to both ends of the two strips.

[0126] The rotating connector 133 is composed of a central column and a side plate frame. Both ends of the rotating connector 133 are connected to the side plate frame. The surface of the central column is rotatably connected to the cross control frame 132. One side of the side plate frame is connected to the side of the mounting slide plate 134.

[0127] Multiple limiting posts 139 are connected to the inner wall of the control frame 131, and the surface of the limiting post 139 is slidably connected to the corresponding mounting plate 134.

[0128] In use, the corresponding mounting slide 134 moves along the limiting post 139, which can limit the movement trajectory of the mounting slide 134.

[0129] In this technical solution, the distance control component 13 is designed to control the distance between the lower housing 1 and the adjusting guide group 11, so that the adjusting guide group 11 can easily adapt to the lower pulley 6 and the upper pulley 8.

[0130] In use, based on the positions of the lower pulley 6 and the upper pulley 8 where the transmission belt 7 is installed, the control power source 138 drives the control bidirectional stud 137 to rotate, thereby causing the corresponding two mounting slides 134 to move towards or away from each other along the limit post 139, thereby causing the corresponding rotating connecting seat 133 to move, which in turn causes the two ends on one side of the cross control frame 132 to move towards or away from each other, and thus the two ends on the other side of the cross control frame 132 to move towards or away from each other, thereby moving the positioning post 135, positioning plate 136 and safety control frame 121 and other structures, thereby adjusting the distance between the safety control component 12, the adjusting guide group 11 and the lower housing 1, so that the positions of the first guide wheel 111, the second guide wheel 112 and the lower pulley 6 and the upper pulley 8 where the transmission belt 7 is installed are on the same plane, so as to facilitate the rotation of the transmission belt 7.

[0131] The movable component 14 includes a mounting frame 141, which is connected to the inner wall of the lower housing 1. A plurality of track shafts 142 are connected to the inner wall of the mounting frame 141, and a support plate 143 is slidably connected through the surface of the track shafts 142.

[0132] A plurality of connecting strips 144 are connected to one side of the support plate 143. The surface of the connecting strips 144 is slidably connected to one side of the mounting frame 141 and the lower housing 1. The side of the connecting strips 144 away from the support plate 143 is connected to the side of the control frame 131.

[0133] A telescopic device 145 is connected to one side of the support plate 143, and one end of the telescopic device 145 is connected to the inner wall of the mounting frame 141.

[0134] In this technical solution, the lateral position of the adjusting guide group 11 can be adjusted by using the movable component 14, thereby controlling the tension of the transmission belt 7.

[0135] Based on the tension of the transmission belt 7, the telescopic device 145 drives the corresponding support plate 143 to move in the same direction along the track axis 142, which in turn drives the connecting bar 144 to move in the same direction. This, in turn, drives the distance control component 13, the safety control component 12, and the adjusting guide group 11 to move in the same direction, thereby adjusting the tension of the transmission belt 7.

[0136] Example 2

[0137] As one embodiment of this application, such as Figures 12-15As shown, the difference between it and Embodiment 1 is that the grinding motor 5 is detachably connected to the bottom of the inner cavity of the lower housing 1 through a bracket unit. The bracket unit includes a disassembly and assembly component 16, which is detachably connected to the grinding motor 5. The bottom of the disassembly and assembly component 16 is slidably connected to the adaptation component 17, and the bottom of the adaptation component 17 is detachably connected to the bottom of the inner cavity of the lower housing 1.

[0138] The assembly 16 includes two symmetrically distributed mounting brackets 161. The mounting brackets 161 have an L-shaped cross-section. A damping pad 162 is connected to one side of the two mounting brackets 161. Both the mounting brackets 161 and the damping pad 162 have multiple mounting holes. The mounting brackets 161 and the damping pad 162 are detachably connected to the grinding motor 5 by multiple mounting bolts.

[0139] The bottom of the mounting bracket 161 is connected to an adjustment plate 163. The adjustment plate 163 is slidably disposed inside the disassembly frame 165. The adjustment plate 163 is threadedly connected to the surface of the disassembly and assembly bidirectional stud 164. Both ends of the disassembly and assembly bidirectional stud 164 are rotatably connected to both sides of the disassembly and assembly frame 165. Both ends of the disassembly and assembly bidirectional stud 164 are connected to control knobs.

[0140] The inner side of the disassembly frame 165 is connected to multiple fixed rails 166, and the surface of the fixed rails 166 is slidably connected to the adjustment plate 163.

[0141] Two symmetrically distributed reinforcing plates 167 are connected to the opposite sides of the two mounting brackets 161. The reinforcing plates 167 are detachably connected to the top surface of the disassembly frame 165 by reinforcing bolts 168.

[0142] In use, depending on the installation position of the grinding motor 5, rotate the bidirectional stud 164 to drive the adjustment plates 163 on both sides to move towards or away from each other along the fixed track 166, thereby driving the mounting frame 161 and the shock-absorbing damping pad 162 to move in the same direction, and adjusting the position of the mounting frame 161 and the shock-absorbing damping pad 162.

[0143] Then, the grinding motor 5 is placed on top of the two damping pads 162, and the grinding motor 5 is installed on the mounting bracket 161 and the top of the damping pads 162 using the mounting bolts. At this time, the damping pads 162 can dampen the grinding motor 5 and reduce the noise when the grinding motor 5 is running.

[0144] When the mounting bracket 161 moves, it drives the reinforcing plate 167 to move in the same direction. Then, the reinforcing plate 167 and the disassembly frame 165 are connected by the reinforcing bolts 168 to lock the position of the reinforcing plate 167 and the mounting bracket 161, making the installation of the grinding motor 5 more stable.

[0145] The adaptation component 17 includes a detachable frame 171, which has an installation port and is detachably connected to the bottom of the inner cavity of the lower housing 1 through the installation port and bolts.

[0146] Multiple positioning rails 172 are connected to the inner cavity side wall of the disassembly and assembly frame 171. The surface of the positioning rails 172 is slidably connected to the adaptation plate 173. A through strip 174 is connected to the top of the adaptation plate 173. The through strip 174 is slidably connected to the top surface of the disassembly and assembly frame 171. The top of the through strip 174 is connected to the bottom of the disassembly and assembly frame 165.

[0147] A lifting device 175 is connected to one side of the adaptation plate 173, and one end of the lifting device 175 is connected to the inner wall of the disassembly frame 171.

[0148] In use, the lifting device 175 drives the adaptation plate 173 to move along the positioning track 172, thereby driving the through strip 174 to move in the same direction, which in turn drives the disassembly frame 165 and grinding motor 5 and other structures to move in the same direction. This can drive the lower pulley 6 to move in the same direction to adapt to transmission belts 7 of different lengths.

[0149] Both sides of the disassembly frame 171 and the disassembly frame 165 are provided with support and lubrication components 18. The support and lubrication components 18 include an oil storage support shell 181. Both sides of the disassembly frame 165 are connected to the oil storage support shell 181. The bottom of the oil storage support shell 181 is connected to a ball frame 182. The ball frame 182 is rotatably connected to multiple support balls 183.

[0150] Both sides of the disassembly frame 171 are connected to oil collection support shells 184. The upper end of the support ball 183 is rotatably connected to the bottom surface of the oil storage support shell 181, and the lower end of the support ball 183 is rollingly connected to the top surface of the oil collection support shell 184.

[0151] An oil collection port is provided on the top surface of the oil collection support shell 184, through which excess lubricating oil is collected into the oil collection support shell 184.

[0152] During use, the oil storage support shell 181 moves with the disassembly frame 165. At this time, the support ball 183 rolls on the top surface of the oil collection support shell 184 as the oil storage support shell 181 moves, making the movement of the oil storage support shell 181 and the disassembly frame 165 smoother and avoiding the large mass of the grinding motor 5 from affecting the normal movement of the disassembly frame 165.

[0153] When the support ball 183 rolls, the lubricating oil in the oil storage support shell 181 lubricates the support ball 183, making the support ball 183 roll more smoothly.

[0154] Flexible dustproof strips 19 are connected between two adjacent mounting brackets 161, between the adjusting plate 163 and the inner wall of the disassembly frame 165.

[0155] The power source 138 is a motor or other equipment that can output rotational kinetic energy.

[0156] Telescopic device 145 and lifting device 175 are electric push rods, lifting cylinders, hydraulic lifting bars or other devices with autonomous telescopic functions.

[0157] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. A three-roll mill, comprising a lower housing (1) and an upper housing (2), wherein two upper housings (2) are connected to the top of the lower housing (1), characterized in that, The three-roll mill further includes: a grinding roller group (3) and a transmission component (4). The grinding roller group (3) is located between two upper housings (2). The end faces of the grinding roller group (3) are respectively connected to the transmission component (4). The transmission component (4) is located in the inner cavity of the upper housing (2). A grinding motor (5) is installed in the inner cavity of the lower housing (1). The output end of the grinding motor (5) is connected to a lower pulley (6). An upper pulley (8) is provided diagonally above the lower pulley (6). The lower pulley (6) and the upper pulley (8) are connected by a transmission belt (7). The transmission belt (7) wraps around the surfaces of the lower pulley (6) and the upper pulley (8). The upper pulley (8) is connected to the transmission assembly (4). The feeding module (9) is located on one side of the grinding roller group (3), and the two sides of the feeding module (9) are connected to the lower box (1) and the upper box (2) respectively. The tension control unit is located at the transmission belt (7) and is connected to one side of the lower housing (1) and the upper housing (2). The tension control unit, the lower pulley (6) and the upper pulley (8) are all located in the inner cavity of the protective shell (10). The protective shell (10) is connected to one side of the lower housing (1) and the upper housing (2). The tension control unit is used to adjust the tension of the transmission belt (7). The tension control unit includes an adjustment guide group (11), one end of which is connected to the safety control component (12). The side of the safety control component (12) away from the adjustment guide group (11) is connected to the distance control component (13). The side of the distance control component (13) is connected to the moving component (14). The moving component (14) is connected to the inner wall of the lower housing (1).

2. The three-roll mill as described in claim 1, characterized in that: The grinding roller group (3) includes a slow roller (31), a medium-speed roller (32) and a fast roller (33). The slow roller (31), the medium-speed roller (32) and the fast roller (33) are arranged in sequence, and the fast roller (33) is close to the feeding module (9). The end faces of the slow roller (31), the medium-speed roller (32) and the fast roller (33) are respectively connected to the transmission assembly (4). The slow roller (31), medium roller (32) and fast roller (33) are rotatably connected at both ends to the bearing connecting seat (34), which is located in the inner cavity of the upper housing (2).

3. The three-roll mill as described in claim 2, characterized in that: The transmission assembly (4) includes a fast gear (41), and both ends of the fast roller (33) are connected to the fast gear (41). The side of the fast gear (41) at one end is meshed with the transmission gear (42), and one end of the transmission gear (42) is connected to one end of the upper pulley (8). The medium speed roller (32) is connected to a medium speed gear (43) at both ends, and the side of the medium speed gear (43) at one end meshes with the side of the fast gear (41) away from the transmission gear (42). One end of the fast roller (33) is connected to a slow gear (44), which meshes with a transmission gear (42) that is away from the fast gear (41).

4. The three-roll mill as described in claim 1, characterized in that: The feeding module (9) includes a support frame (91), both ends of which are connected to the lower box (1), and a feeding hopper (92) is connected to the top side of the support frame (91). The hopper (92) is provided with an installation plate (93) on one side. The two ends of the installation plate (93) are connected to the upper box (2) respectively. The installation plate (93) is connected to a scraper (94) on one side. The scraper (94) is in contact with the surface of the high-speed roller (33).

5. The three-roll mill as described in claim 1, characterized in that: The adjusting guide group (11) includes a first guide wheel (111) and a second guide wheel (112). The first guide wheel (111) has a positioning groove on its side, and the second guide wheel (112) has an anti-detachment stabilizing ring (113) connected to its side. The anti-detachment stabilizing ring (113) is disposed in the positioning groove. The first guide wheel (111) and the second guide wheel (112) are rotatably connected to the surfaces of two fixed shafts (114).

6. The three-roll mill as described in claim 1, characterized in that: The security control component (12) includes a security control frame (121), a fixed block (122) is connected to the inner side of the security control frame (121), and a movable block (124) is slidably connected to the inner side of the security control frame (121). The fixed block (122) and the movable block (124) are respectively connected to one end of two fixed shafts (114). The fixed block (122) is connected to a plurality of guide shafts (123) on one side, and the surface of the guide shafts (123) is slidably connected to the movable block (124).

7. The three-roll mill as described in claim 6, characterized in that: A pull column (125) is connected to one side of the movable block (124). The surface of the pull column (125) is slidably connected to one side of the security frame (121). A pull handle (126) is connected to the end of the pull column (125) away from the movable block (124). Locking plates (127) are connected to both sides of the pull handle (126), and the locking plates (127) are detachably connected to one side of the security frame (121) by locking bolts (128).

8. The three-roll mill as described in claim 1, characterized in that: The distance control component (13) includes a control frame (131), and a plurality of cross control frames (132) are provided between the control frame (131) and the security frame (121). Both ends of the cross control frame (132) are rotatably connected to a rotating connecting seat (133), and the rotating connecting seats (133) on both sides are respectively connected to two symmetrically distributed mounting plates (134). The mounting slide plate (134) on one side is slidably connected to the surface of the positioning post (135), and both ends of the positioning post (135) are connected to positioning plates (136). One side of the positioning plate (136) is connected to one side of the security frame (121). The mounting plate (134) on the other side is threadedly connected to the surface of the control bidirectional stud (137). One end of the control bidirectional stud (137) is rotatably connected to the inner wall of one side of the control frame (131). The other end of the control bidirectional stud (137) is rotatably connected to the other side of the control frame (131). The end of the control bidirectional stud (137) away from the control frame (131) is connected to the output end of the control power source (138). The control power source (138) is connected to the outside of the control frame (131).

9. The three-roll mill as described in claim 8, characterized in that: A flexible protective cover (15) is provided on the outside of the rotating connecting seat (133), and the two ends of the flexible protective cover (15) are respectively connected to the control frame (131) and the security frame (121).

10. The three-roll mill as described in claim 1, characterized in that: The moving component (14) includes a mounting frame (141) connected to the inner wall of the lower housing (1). The inner wall of the mounting frame (141) is connected to a plurality of track shafts (142), and a support plate (143) is slidably connected through the surface of the track shafts (142). The support plate (143) is connected to a plurality of connecting strips (144) on one side. The surface of the connecting strips (144) is slidably connected to one side of the mounting frame (141) and the lower box (1). The side of the connecting strips (144) away from the support plate (143) is connected to one side of the control frame (131). One side of the support plate (143) is connected to a telescopic device (145), and one end of the telescopic device (145) is connected to the inner wall of the mounting frame (141).

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