Easy-to-maintain battery material mixing equipment

Abstract

The present invention relates to a battery material stirring device that is easy to maintain, comprising a frame, a stirring drive shaft and a dispersion drive shaft, wherein the stirring drive shaft is a hollow shaft, the stirring drive shaft sleeve is arranged outside the dispersion drive shaft, the upper end outer diameter of the dispersion drive shaft is smaller than the inner diameter of the central shaft hole of the stirring drive shaft, and a space is reserved below the frame to allow the dispersion drive shaft to be removed from the bottom; the frame is provided with an upper bearing corresponding to the upper end of the dispersion drive shaft, the outer periphery of the upper end shaft head of the dispersion drive shaft is interference fit with the inner ring of the upper bearing, the top surface of the inner ring of the upper bearing is provided with a shaft end cover, and the shaft end cover is connected to the upper end surface of the shaft head. The present invention reduces the requirements for the height of the factory building, and is more convenient to disassemble. In addition, the dispersion drive shaft is installed in an inverted manner, and its axial direction has a deformation space, which avoids the adverse effects on the bearing due to its heat expansion, improves the service life, and also avoids the bending and deformation of the dispersion drive shaft, so that the equipment runs more stably and improves the stirring quality of the battery material.

Description

Technical Field

[0001] The invention relates to a battery material stirring device, in particular to a battery material stirring device which is convenient to maintain. Background Art

[0002] See also Figures 1 to 5 As shown, it is an existing battery material stirring device, which mainly includes a frame, a dispersion drive motor 20, a stirring drive motor 30, a dispersion drive shaft 1, a stirring drive shaft 2, a transmission box 60, a dispersion shaft 3, a stirring paddle 4, a barrel 5 and an outer barrel cover 70. The frame includes a top frame 10, a vertical frame 40 and a base 50. The top frame 10 and the base 50 are respectively arranged at the upper and lower ends of the vertical frame 40; the stirring drive shaft 2 is a hollow shaft, which is vertically arranged on the top frame 10, and the lower end of the stirring drive shaft 2 extends to the bottom of the top frame 10 and is connected to the stirring paddle 4 through the transmission box 60; the dispersion drive shaft 1 The dispersion drive shaft 1 passes through the central axis hole of the stirring drive shaft 2 from top to bottom, and the upper and lower ends of the dispersion drive shaft 1 extend out of the stirring drive shaft 2 respectively. The outer diameter L1 of the upper end of the dispersion drive shaft 1 is larger than the inner diameter L2 of the central axis hole of the stirring drive shaft 2, and an upper limit step E is provided at the top of the dispersion drive shaft 1, and an upper bearing 11 is provided outside the shaft head at the upper end of the upper limit step E. The inner ring of the upper bearing 11 is supported on the upper limit step, and the outer ring of the upper bearing 11 cooperates with the upper bearing cover 103. The upper bearing cover 103 is limitedly matched with the top surface of the outer ring of the upper bearing 11, and the upper bearing cover 103 is connected to the upper part of the top frame 10.

[0003] A middle limit step F is provided below the upper end of the dispersion drive shaft 1 corresponding to the upper limit step, and a middle bearing 12 is provided between the middle limit step F and the upper end of the stirring drive shaft 2. The middle limit step F is supported on the inner ring of the middle bearing 12, and the outer ring of the middle bearing 12 is supported on the upper end of the stirring drive shaft 2.

[0004] A lower limit step G is provided at the lower end of the decentralized drive shaft 1, and a lower bearing 13 is provided outside the shaft head at the lower end of the lower limit step G. The lower limit step G of the decentralized drive shaft 1 is supported on the inner ring of the lower bearing 13, and the lower bearing 13 is connected to the bottom plate 601 of the transmission box 60.

[0005] The bottom plate 601 of the transmission box 60 is connected to the dispersion shaft 3 through a bearing. The upper end of the dispersion shaft 3 is located in the transmission box 60 and is transmitted to the dispersion drive shaft 1. The lower end of the dispersion shaft 3 extends out of the bottom of the transmission box 60 and is connected to the dispersion disk 31.

[0006] A cantilevered motor frame 101 is provided on one side of the top frame 10, and a dispersed drive motor 20 is slidably arranged at the bottom of the motor frame 101. The dispersed drive motor 20 is connected to the dispersed drive shaft 1 through a belt pulley transmission. A tension adjustment screw 102 is provided between the dispersed drive motor 20 and the motor frame, and the tension of the belt is changed by adjusting the tension adjustment screw. The stirring drive motor 30 is arranged in the vertical frame 40 and is connected to the stirring drive shaft 2 through a sprocket chain transmission. Moreover, the modified structure uses the position of the stirring drive motor 30 to adjust the tension of the chain.

[0007] An outer barrel cover 70 is provided at the bottom of the top frame 10 corresponding to the transmission box 60. The bottom surface of the outer barrel cover 70 is provided with an annular surface 80, which protrudes toward the central axis direction of the outer barrel cover 70. The barrel mouth of the material barrel 5 is sealed with the bottom surface of the annular surface 80.

[0008] In the battery material stirring equipment of the above structure, the dispersion drive shaft 1 and the dispersion shaft 3 need to rotate at high speed when working, and the bearings connected thereto cannot be drained of oil to prevent oil from splashing into the material barrel 5 during high-speed operation, causing adverse effects on the battery material; therefore, the dispersion drive shaft 1 and the dispersion shaft 3 are wearing parts, and the convenience of replacement needs to be considered.

[0009] Through the above-mentioned examples of the structure of the battery material mixing equipment and the problems that occurred during its application, it can be known that it has the following shortcomings:

[0010] 1. The outer diameter of the upper end of the dispersion drive shaft 1 is larger than the inner diameter of the central shaft hole of the stirring drive shaft 2. In addition, the dispersion drive shaft 1 is supported on the bearing through a limiting step. Therefore, no matter which of the above reasons, the dispersion drive shaft 1 can only be lifted upward for disassembly, and the disassembly is difficult. Moreover, when the height space of the application site of the equipment is low, the equipment needs to be moved to a position with a higher height space to disassemble and assemble the dispersion drive shaft 1, or the ceiling (floor / roof / ceiling) of the application site needs to be pierced to disassemble and assemble the dispersion drive shaft 1. The disassembly and maintenance costs are quite high, and the working hours are long, which seriously affects the production progress.

[0011] 2. The upper and lower ends of the dispersed drive shaft 1 are limited between the upper bearing 11 and the lower bearing. Since the dispersed drive shaft 1 works without oil in the bearing and at high speed, it generates severe heat, which accelerates the wear of the bearing. In addition, the dispersed drive shaft 1 expands and deforms due to heat, but there is no space at the upper and lower ends to allow it to deform, which causes the dispersed drive shaft 1 to bend and easily causes the bearing to burst, thereby further accelerating the scrapping of the dispersed drive shaft 1 and the bearings connected thereto.

[0012] 3. The upper, middle and lower parts of the dispersion drive shaft 1 are positioned and matched with the top frame 10, the stirring drive shaft 2 and the transmission box 60 respectively. Since the dispersion drive shaft 1 has a tolerance every time it cooperates with a part, the concentricity deviation of the dispersion drive shaft 1 and the stirring drive shaft 2 is large, which accelerates the wear of the dispersion drive shaft 1, the stirring drive shaft 2 and their bearings and increases the working noise.

[0013] 4. The positions of the dispersion drive motor 20 and the stirring drive motor 30 are adjusted to adjust the tension of the corresponding belts and chains. Since the dispersion drive motor 20 and the stirring drive motor 30 have a large mass, the labor intensity of adjusting their positions is relatively high.

[0014] 5. The dispersion shaft 3 is matched with the transmission box 60 through the bearing. Therefore, when the dispersion shaft 3 and its bearing are replaced, the interference-fitted bearing and the dispersion shaft 3 need to be knocked out on site, and the assembly also needs to be carried out on site. Moreover, the assembly of the bearing and the dispersion shaft 3 requires higher process requirements and cannot be completed by ordinary machine repair personnel. It may even require technical personnel of the equipment manufacturing company to perform on-site assembly and debugging. The disassembly and assembly time is long, the maintenance cost is high, and the production progress is seriously affected.

[0015] 6. Battery materials accumulate on the annular surface of the outer barrel cover 70, resulting in material waste.

[0016] 7. Since heat will be generated when the material is stirred, a water flow channel is provided inside the wall plate of the barrel 5 for heat dissipation. However, since the contact area between the water flow channel and the inner wall plate of the barrel 5 is limited, the heat transfer efficiency is low, resulting in poor heat dissipation effect.

[0017] 8. Since the lower end of the stirring paddle 4 cannot contact the inner bottom surface of the barrel 5, and the lower end of the stirring paddle 4 is only a conventional structure, the battery material between the inner bottom surface of the barrel 5 and the lower end surface of the stirring paddle 4 cannot be stirred, affecting the quality of the finished product. Summary of the invention

[0018] The object of the present invention is to provide a battery material stirring device which has a reasonable structure, a dispersed driving shaft, is easy to maintain, and can be disassembled downward for easy maintenance.

[0019] The object of the present invention is achieved in that:

[0020] A battery material stirring device that is easy to maintain, includes a frame, a stirring drive shaft and a dispersion drive shaft, the stirring drive shaft is a hollow shaft, the stirring drive shaft and the dispersion drive shaft are respectively rotatably arranged on the frame, the stirring drive shaft sleeve is arranged outside the dispersion drive shaft, and the upper and lower ends of the dispersion drive shaft respectively extend out of the upper and lower ends of the stirring drive shaft, and is characterized in that: the outer diameter of the upper end of the dispersion drive shaft is smaller than the inner diameter of the central shaft hole of the stirring drive shaft, and at least space is reserved below the frame to allow the dispersion drive shaft to be removed from the bottom; the frame is provided with an upper bearing corresponding to the upper end of the dispersion drive shaft, the outer periphery of the upper end shaft head of the dispersion drive shaft is interference fit with the inner ring of the upper bearing, the top surface of the inner ring of the upper bearing is provided with a shaft end cover, and the shaft end cover is connected to the upper end surface of the shaft head.

[0021] The purpose of the present invention can also be solved by the following technical measures:

[0022] As a more specific solution, the frame is provided with a dispersion drive motor and a stirring drive motor, which are respectively connected to the dispersion drive shaft and the stirring drive shaft in driving connection; a transmission box is provided below the frame, the stirring drive shaft is connected to the stirring paddle in driving connection through the transmission box, and the transmission box is also provided with a dispersion shaft, the lower end of the dispersion drive shaft extends into the transmission box and is suspended in the air, and the lower end of the dispersion drive shaft is connected in driving connection with the dispersion shaft. The lower end of the dispersion drive shaft is suspended in the air to reduce the number of parts that cooperate with it, thereby improving the verticality of the transmission shaft and the concentricity with the hollow shaft.

[0023] As a further solution, the bottom plate of the transmission box is provided with a clearance hole corresponding to the decentralized drive shaft, and the clearance hole is covered by a cover. When the decentralized drive shaft is removed from below, the cover is opened to facilitate the decentralized drive shaft to be pulled out from the clearance hole.

[0024] As a further solution, a sleeve is provided on the upper end of the dispersion shaft, a bearing is provided between the sleeve and the dispersion shaft, and the sleeve, the bearing and the dispersion shaft together constitute an independent individual dispersion shaft assembly, and the dispersion shaft assembly is detachably connected to the transmission box through the sleeve. Therefore, the matching and detection of the dispersion shaft and the bearing do not need to be installed on site, which reduces the cost of replacement and improves the installation efficiency.

[0025] As a further solution, a dust sealing assembly is provided between the lower end of the sleeve and the dispersion shaft to prevent the entry of battery materials.

[0026] As a further solution, the upper and lower ends of the stirring drive shaft are matched with the dispersion drive shaft through the middle bearing and the lower bearing respectively, and the dispersion drive shaft has deformation space on the upper and lower sides corresponding to the middle bearing, and the dispersion drive shaft has deformation space on the upper and lower sides corresponding to the lower bearing. When the dispersion drive shaft is heated and deformed, there is axial deformation space, which reduces radial pressure on the bearing and increases its service life.

[0027] As a further solution, the frame includes a top frame, a vertical frame and a base, the top frame and the base are respectively arranged at the upper and lower ends of the vertical frame, the upper ends of the stirring drive shaft and the dispersion drive shaft extend into the top frame; the transmission box is located at the bottom of the top frame, and the bottom of the top frame is also fixedly provided with an outer barrel cover corresponding to the outer side of the transmission box, the bottom surface of the outer barrel cover is engaged with the barrel mouth of the material barrel, and the joint is provided with an inwardly protruding annular surface, and the transmission box is provided with a scraper, and the scraper is located on the top surface of the annular surface. The scraper moves in a circle with the transmission box, thereby preventing the battery material splashed onto the annular surface from being hidden on the annular surface, so as to reduce material waste.

[0028] As a further solution, the dispersion drive motor and the stirring drive motor are directly connected to the outer side surfaces of the frame respectively, so that the load-bearing force of the frame is more reliable.

[0029] As a further solution, the stirring drive motor is connected to the stirring drive shaft through a first flexible annular transmission device, and at least one side of the frame corresponding to the first flexible annular transmission device is provided with a first tensioning adjustment device for applying pressure thereto; the dispersion drive motor is connected to the dispersion drive shaft through a second flexible annular transmission device, and at least one side of the frame corresponding to the second flexible annular transmission device is provided with a second tensioning adjustment device for applying pressure thereto. The tension of the flexible annular transmission device is adjusted by pressing it, which is more convenient.

[0030] As a further solution, the barrel wall of the material barrel includes an outer wall plate and an inner wall plate, a sandwich is formed between the outer wall plate and the inner wall plate, and a heat sink is provided on the surface of the inner wall plate facing the sandwich. Adding heat sinks in the sandwich does not affect the cooling water, but increases the heat dissipation area, so that the material barrel cools down faster.

[0031] The beneficial effects of the present invention are as follows:

[0032] (1) The drive shaft of this easy-to-maintain battery material mixing equipment can be disassembled from the bottom, thereby reducing the requirements for the height of the plant and making disassembly more convenient. In addition, the dispersed drive shaft is installed in an upside-down manner, and the bearing is limited on its outer periphery. The axial direction of the dispersed drive shaft has deformation space, which avoids adverse effects on the bearing due to expansion of the dispersed drive shaft, prolongs the service life, reduces the frequency of replacement, and also avoids bending and deformation of the dispersed drive shaft, making the equipment run more stable and improving the mixing quality of battery materials;

[0033] (2) The lower end of the dispersion drive shaft of this easy-to-maintain battery material mixing equipment is suspended in the air. On the one hand, it can improve its concentricity with the mixing drive shaft. On the other hand, it shortens the length of the dispersion drive shaft, reduces its weight, and is more convenient for disassembly from the bottom.

[0034] (3) The dispersion shaft and its bearings and sleeves of this easy-to-maintain battery material mixing equipment are made into a modular dispersion shaft assembly. The equipment manufacturer can pre-match the dispersion shaft assembly. When the user needs it, the dispersion shaft assembly can be delivered to the user through logistics. The user can put the dispersion shaft assembly into use through simple disassembly and assembly, which is convenient and quick. Moreover, since the assembly of the dispersion shaft, bearings and sleeves is installed on-site by the manufacturer, it is convenient to test their performance and parameters, improve product quality, and reduce replacement costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the structure of existing battery material mixing equipment.

[0036] Figure 2 for Figure 1 Enlarged structural diagram at A in the middle.

[0037] Figure 3 for Figure 2 Enlarged structural diagram at B in the middle.

[0038] Figure 4 for Figure 2 Enlarged structural diagram at point C in the middle.

[0039] Figure 5 for Figure 2 Enlarged structural diagram at D in the middle.

[0040] Figure 6 It is a schematic structural diagram of an embodiment of the present invention.

[0041] Figure 7 for Figure 6 Enlarged structural diagram at H in the middle.

[0042] Figure 8 for Figure 7 Schematic diagram of the partially enlarged structure.

[0043] Fig. 9 for Figure 8 Enlarged structural diagram at J in the middle.

[0044] Fig.10 for Figure 8 Enlarged structural diagram at K in the middle.

[0045] Fig.11 for Figure 8 Enlarged structural diagram at L in the middle.

[0046] Fig.12 for Figure 6 Enlarged structural diagram at R in the middle.

[0047] Fig.13 for Figure 6 The enlarged structural diagram at point I in the middle.

[0048] Fig.14 It is a schematic diagram of the main structure of the dispersion shaft assembly in the present invention.

[0049] Fig.15 for Fig.14 Schematic diagram of the MM cross-sectional structure.

[0050] Fig.16 It is a schematic structural diagram of another embodiment of the dispersion shaft assembly in the present invention.

[0051] Fig.17 for Fig.16 The schematic diagram of the structure is enlarged at position N.

[0052] Fig.18 for Fig.16 Schematic diagram of the cross-section structure.

[0053] Fig.19 It is a schematic diagram of the top view structure of the present invention.

[0054] Fig. 20 for Fig.19 The enlarged structural diagram at O ​​in the middle.

[0055] Fig.21 for Fig. 20 Schematic diagram of the QQ cross-sectional structure.

[0056] Fig. 22 for Fig.19 The enlarged structural diagram at P in the middle. DETAILED DESCRIPTION

[0057] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0058] See also Figures 6 to 12 As shown, a battery material stirring device that is easy to maintain includes a frame, a stirring drive shaft 2 and a dispersion drive shaft 1. The stirring drive shaft 2 is a hollow shaft. The stirring drive shaft 2 and the dispersion drive shaft 1 are rotatably arranged on the frame respectively. The stirring drive shaft 2 is sleeved outside the dispersion drive shaft 1. The upper and lower ends of the dispersion drive shaft 1 extend out of the upper and lower ends of the stirring drive shaft 2 respectively. The outer diameter L1 of the dispersion drive shaft 1 is smaller than the inner diameter L2 of the central axis hole 22 of the stirring drive shaft 2. At least a space is reserved below the frame to allow the dispersion drive shaft 1 to be removed from the bottom; an upper bearing 11 is provided at the upper end of the frame corresponding to the dispersion drive shaft 1, and the outer periphery of the upper end shaft head of the dispersion drive shaft 1 is interference fit with the inner ring of the upper bearing 11. The top surface of the inner ring of the upper bearing 11 carries a shaft end cover 14, and the shaft end cover 14 is connected to the upper end surface of the shaft head.

[0059] The outer ring of the upper bearing 11 is indirectly supported on the frame, the upper end of the dispersed drive shaft 1 is connected to the shaft end cover 14, and the shaft end cover 14 is supported on the inner ring of the upper bearing 11. A support ring 105 is provided on the frame, and a boss is provided on the inner side of the support ring 105; the inner ring of the upper bearing 11 is interference fit with the outer periphery of the upper end of the dispersed drive shaft 1, the upper bearing 11 is arranged in the support ring 105 and supported on the boss, and the outer ring of the upper bearing 11 is interference fit with the inner side of the support ring 105; the upper bearing cover 103 is connected to the support ring 105.

[0060] A first limiting step 15 is provided at the upper end of the dispersed driving shaft 1 corresponding to the bottom of the inner ring of the upper bearing 11 , and the bottom of the inner ring of the upper bearing 11 abuts against the first limiting step 15 .

[0061] The frame is provided with a dispersion drive motor 20 and a stirring drive motor 30, which are respectively connected to the dispersion drive shaft 1 and the stirring drive shaft 2. A first support leg 201 is provided on the side of the dispersion drive motor 20, and a second support leg 301 is provided on the side of the stirring drive motor 30. The first support leg 201 and the second support leg 301 are respectively connected to the outer side of the frame, and the outer side of the frame is also provided with a limiting boss 401 corresponding to the lower part of the first support leg 201 and the second support leg 301.

[0062] The frame includes a top frame 10, a vertical frame 40 and a base 50, the top frame 10 and the base 50 are respectively arranged at the upper and lower ends of the vertical frame 40, and the upper ends of the stirring drive shaft 2 and the dispersion drive shaft 1 extend into the top frame 10. A transmission box 60 is arranged below the top frame 10, and the stirring drive shaft 2 is connected to the stirring paddle 4 through the transmission box 60. The transmission box 60 is also provided with a dispersion shaft 3, and the lower end of the dispersion drive shaft 1 extends into the transmission box 60 and is suspended, and the lower end of the dispersion drive shaft 1 is connected to the dispersion shaft 3 through a synchronous belt pulley transmission pair 32.

[0063] The bottom plate 601 of the transmission box 60 is provided with a clearance hole 602 corresponding to the dispersed driving shaft 1 , and the clearance hole 602 is covered by a cover body 603 .

[0064] The outer periphery of the dispersion driving shaft 1 is positioned and matched with the stirring driving shaft 2 through other bearings.

[0065] The other bearings include a middle bearing 12, which is arranged between the upper ends of the dispersion drive shaft 1 and the stirring drive shaft 2. The outer ring of the middle bearing 12 is placed on the stirring drive shaft 2, and the upper end of the stirring drive shaft 2 is also provided with a middle bearing cover 21 corresponding to the top surface of the outer ring of the middle bearing 12.

[0066] The decentralized drive shaft 1 has deformation spaces on the upper and lower sides corresponding to the middle bearing 12 (see Fig.11The deformation space 16 shown in FIG. 1 has a deformation space of range h).

[0067] The other bearings also include a lower bearing 13. The lower end of the dispersion drive shaft 1 extends out of the lower end of the stirring drive shaft 2. The lower bearing 13 is arranged between the lower end of the dispersion drive shaft 1 and the lower end of the stirring drive shaft 2. The dispersion drive shaft 1 leaves deformation space on the upper and lower sides corresponding to the lower bearing 13.

[0068] The outer ring of the lower bearing 13 is supported on the lower end of the stirring drive shaft 2 through a lower bearing cover 23 .

[0069] Combination Figures 13 to 15 As shown, a sleeve 8 is provided on the outer end of the dispersion shaft 3, and a bearing is provided between the sleeve 8 and the dispersion shaft 3. The sleeve 8, the bearing and the dispersion shaft 3 together constitute an independent individual as a dispersion shaft assembly 90, and the dispersion shaft assembly 90 is detachably connected to the transmission box 60 through the sleeve 8.

[0070] The bearings include a first bearing 33 and a second bearing 34 distributed at the upper and lower ends of the sleeve 8 ; the upper end of the dispersion shaft 3 also extends to the top of the sleeve 8 .

[0071] The upper ends of the dispersion shaft 3 and the sleeve 8 are respectively provided with a first supporting step and a second supporting step. The first bearing 33 is interference fit with the upper end of the dispersion shaft 3. The inner ring and the outer ring of the first bearing 33 are respectively supported on the first supporting step and the second supporting step. The upper end surface of the sleeve 8 is also provided with an upper pressure ring 82, which is crimped on the outer ring of the first bearing 33.

[0072] The lower ends of the dispersion shaft 3 and the sleeve 8 are respectively provided with a third supporting step and a fourth supporting step. The second bearing 34 is interference fit with the lower end of the dispersion shaft 3. A deformation space is left between the inner ring of the second bearing 34 and the third supporting step. The top surface of the outer ring of the second bearing 34 is against the second supporting step. The lower end surface of the sleeve 8 is also provided with a lower pressure ring 83, which is crimped on the bottom surface of the outer ring of the second bearing 34.

[0073] A connecting plate 81 is provided on the outer periphery of the sleeve 8, and a connecting hole is provided on the surface of the connecting plate 81. An opening 608 is provided on the bottom plate 601 of the transmission box 60 corresponding to the sleeve 8. The sleeve 8 is inserted into the opening 608 from bottom to top, and the connecting plate 81 is abutted against the bottom surface of the bottom plate 601 and is connected to the bottom plate 601 through a connecting piece 607.

[0074] The inner diameter of the connecting hole on the connecting plate 81 is larger than the outer diameter of the connecting piece. A fixing seat 606 is provided on the side of the bottom plate 601 of the transmission box 60 corresponding to the connecting plate 81. A screw hole pointing to the side of the connecting plate 81 is provided on the side of the fixing seat 606. An adjusting screw 605 is connected to the inner thread of the screw hole. The adjusting screw 605 is against the side of the connecting plate 81.

[0075] A sealing ring 89 is provided between the connecting plate 81 and the bottom plate 601 of the transmission box 60 and corresponds to the outer periphery of the opening 608 .

[0076] The outer diameter of the sleeve 8 is greater than the outer diameter of the dispersion disk 31 , and a cover 604 is further provided outside the bottom of the transmission box 60 .

[0077] A dust sealing assembly is provided below the lower pressure ring 83 and between the lower pressure ring 83 and the dispersion shaft 3 .

[0078] The dust seal assembly includes a dust ring 88, a wear-resistant ring 86, a mechanical seal 85 and a dust cover 84. The dust ring 88 and the wear-resistant ring 86 are sleeved on the outside of the dispersion shaft 3 and are arranged in sequence between the inner ring surface 80 of the lower pressure ring 83 and the outer periphery of the dispersion shaft 3. The mechanical seal 85 is arranged outside the dispersion shaft 3 below the wear-resistant ring 86, and the dust cover 84 blocks the bottom of the mechanical seal 85 and the lower pressure ring 83.

[0079] A chromium oxide layer is provided on the outer periphery of the wear-resistant ring 86 corresponding to the dustproof ring 88 .

[0080] Combination Fig.16 As shown, the bottom of the transmission box 60 is also provided with a stirring paddle 4, which is composed of a shaft head, two screw rods and a scraping cross bar. The upper ends of the two screw rods are respectively connected to the two sides of the shaft head, and the lower ends of the two screw rods are connected through the scraping cross bar. The lower end of the scraping cross bar is spaced from the inner bottom surface of the barrel 5, and the scraping cross bar is provided with a scraping inclined surface 41 on the side facing the rotation direction of the stirring paddle 4. The transmission box 60 is provided with a planetary gear, and the stirring paddle 4 is connected to the planetary gear. The stirring drive shaft 2 drives the transmission box 60, the stirring paddle 4 and the dispersion shaft 3 to revolve around the stirring drive shaft 2. The stirring paddle 4 rotates under the action of the planetary gear, and the dispersion shaft 3 rotates at high speed under the drive of the dispersion drive shaft 1.

[0081] The bottom of the top frame 10 is also fixedly provided with an outer barrel cover 70 corresponding to the outer side of the transmission box 60, the bottom surface of the outer barrel cover 70 is connected with the barrel mouth of the material barrel 5, and an annular surface 80 protruding inward is provided at the joint, and the transmission box 60 is provided with a scraper 87, and the scraper 87 is located on the top surface of the annular surface 80. Specifically, the scraper 87 is arranged on the outer periphery of the lower pressure ring 83 of the dispersion shaft assembly 90.

[0082] The scraper blades 87 are provided in three pieces and are respectively arranged on the corresponding dispersion shaft assemblies 90 .

[0083] The angle α between the line connecting the outer end of the scraper 87 and the center of the annular surface 80 and the surface of the scraper 87 is 10 to 25 degrees. Fig.18 shown.

[0084] The top surface of the annular surface 80 is inclined toward the inner side of the annular surface.

[0085] The annular surface 80 is connected to the barrel mouth of the barrel 5 (see Figure 6 and Fig.13 Alternatively, the annular surface 80 is connected to the bottom surface of the outer barrel cover 70 (see Fig.16 and Fig.17 as shown).

[0086] The barrel wall of the material barrel 5 includes an outer wall plate 55 and an inner wall plate 52 . An interlayer 54 is formed between the outer wall plate 55 and the inner wall plate 52 . A heat sink 53 is provided on the surface of the inner wall plate 52 facing the interlayer 54 .

[0087] A spiral plate is provided in the interlayer 54 between the outer wall plate 55 and the inner wall plate 52 , and the spiral plate, the outer wall plate 55 and the inner wall plate 52 together form a spiral water flow channel.

[0088] Combination Figures 19 to 22 As shown, the stirring drive motor 30 is connected to the stirring drive shaft 2 through a first flexible annular transmission device, and a first tensioning adjustment device 6 for applying pressure thereto is provided on a side of the frame corresponding to the first flexible annular transmission device; the dispersion drive motor 20 is connected to the dispersion drive shaft 1 through a second flexible annular transmission device, and a second tensioning adjustment device 7 for applying pressure thereto is provided on a side of the frame corresponding to the second flexible annular transmission device.

[0089] The first flexible annular transmission device includes an annular chain 302 , a driving sprocket and a driven sprocket 303 . The annular chain 302 is wound around the driving sprocket and the driven sprocket 303 . The driving sprocket is connected to the stirring drive motor 30 , and the driven sprocket 303 is connected to the stirring drive shaft 2 .

[0090] The first tensioning adjustment device 6 is provided with two sets, and the two sets are respectively arranged on the outside of a group of phase segments of the endless chain 302.

[0091] The first tensioning adjustment device 6 includes a first movable seat 64 and a clamping sprocket 63. The clamping sprocket 63 is rotatably set on the first movable seat 64. The surface of the first movable seat 64 is provided with a first elongated hole 65 pointing to the direction of the other first movable seat. A spacer sleeve 69 is provided in the first elongated hole 65. The spacer sleeve 69 is slidably matched with the inner wall of the first elongated hole 65. The height of the spacer sleeve 69 is greater than the depth of the first elongated hole 65. A locking screw 66 is inserted in the spacer sleeve 69. The locking screw 66 is threadedly connected to the first crossbeam 106 on the frame, and the nut of the locking screw 66 is pressed against the spacer sleeve 69.

[0092] The left and right sides of the first movable seat 64 are provided with spring seats 641 , and the two ends of the tension spring 67 are respectively connected to the spring seats 641 of the two sets of first movable seats 64 .

[0093] The second tensioning adjustment device 7 includes a second movable seat 72 and a roller 71. The second movable seat 72 is connected to the second crossbeam 107 of the frame through a locking screw. The second movable seat 72 is provided with a second elongated hole 73 corresponding to the locking screw.

[0094] The working principle is: remove the shaft end cover 14 at the top of the decentralized drive shaft 1, the cover body 603 and the cover body 604 of the transmission box 60, and press the decentralized drive shaft 1 from top to bottom to realize the disassembly of the decentralized drive shaft 1, which is easy to operate.

Claims

1. A battery material stirring device that is easy to maintain, comprising a frame, a stirring drive shaft (2) and a dispersion drive shaft (1), wherein the stirring drive shaft (2) is a hollow shaft, the stirring drive shaft (2) and the dispersion drive shaft (1) are rotatably arranged on the frame, the stirring drive shaft (2) is sleeved outside the dispersion drive shaft (1), and the upper and lower ends of the dispersion drive shaft (1) extend out of the upper and lower ends of the stirring drive shaft (2), respectively, and is characterized in that: The outer diameter (L1) of the upper end of the dispersion drive shaft (1) is smaller than the inner diameter (L2) of the central shaft hole (22) of the stirring drive shaft (2), and a space is reserved below the frame to allow the dispersion drive shaft (1) to be removed from the bottom; an upper bearing (11) is provided at the upper end of the frame corresponding to the dispersion drive shaft (1), the outer periphery of the shaft head at the upper end of the dispersion drive shaft (1) is interference fit with the inner ring of the upper bearing (11), the top surface of the inner ring of the upper bearing (11) is supported by a shaft end cover (14), and the shaft end cover (14) is connected to the upper end surface of the shaft head.

2. The battery material stirring device that is easy to maintain according to claim 1 is characterized in that: The frame is provided with a dispersion drive motor (20) and a stirring drive motor (30), and the dispersion drive motor (20) and the stirring drive motor (30) are respectively connected to the dispersion drive shaft (1) and the stirring drive shaft (2); a transmission box (60) is provided below the frame, and the stirring drive shaft (2) is connected to the stirring paddle (4) through the transmission box (60); the transmission box (60) is also provided with a dispersion shaft (3); the lower end of the dispersion drive shaft (1) extends into the transmission box (60) and is suspended in the air, and the lower end of the dispersion drive shaft (1) is connected to the dispersion shaft (3) in a transmission manner.

3. The battery material stirring device convenient for maintenance according to claim 2 is characterized in that: The box bottom plate (601) of the transmission box (60) is provided with a clearance through hole (602) corresponding to the dispersed drive shaft (1), and the clearance through hole (602) is covered by a cover body (603).

4. The battery material stirring device convenient for maintenance according to claim 2, characterized in that: A sleeve (8) is provided on the outer side of the upper end of the dispersion shaft (3); a bearing is provided between the sleeve (8) and the dispersion shaft (3); the sleeve (8), the bearing and the dispersion shaft (3) together constitute an independent entity, namely a dispersion shaft assembly (90); and the dispersion shaft assembly (90) is detachably connected to the transmission box (60) via the sleeve (8).

5. The battery material stirring device convenient for maintenance according to claim 4 is characterized in that: A dust sealing component is also provided between the lower end of the sleeve (8) and the dispersion shaft (3).

6. The battery material stirring device convenient for maintenance according to claim 1, characterized in that: The upper and lower ends of the stirring drive shaft (2) are respectively matched with the dispersion drive shaft (1) through the middle bearing (12) and the lower bearing (13); the dispersion drive shaft (1) has deformation spaces on the upper and lower sides corresponding to the middle bearing (12); and the dispersion drive shaft (1) has deformation spaces on the upper and lower sides corresponding to the lower bearing (13).

7. The battery material stirring device convenient for maintenance according to claim 2, characterized in that: The frame comprises a top frame (10), a vertical frame (40) and a base (50), the top frame (10) and the base (50) being respectively arranged at the upper and lower ends of the vertical frame (40), the upper ends of the stirring drive shaft (2) and the dispersing drive shaft (1) extending into the top frame (10); the transmission box (60) is located at the bottom of the top frame (10), the bottom of the top frame (10) is also fixedly provided with an outer barrel cover (70) corresponding to the outer side of the transmission box (60), the bottom surface of the outer barrel cover (70) is connected to the barrel mouth of the material barrel (5), and the connection is provided with an annular surface (80) protruding inwardly, and the transmission box (60) is provided with a scraper (87), and the scraper (87) is located on the top surface of the annular surface (80).

8. The battery material stirring device convenient for maintenance according to claim 2, characterized in that: The dispersion drive motor (20) and the stirring drive motor (30) are respectively directly connected to the outer side surface of the frame.

9. The battery material stirring device convenient for maintenance according to claim 2, characterized in that: The stirring drive motor (30) is connected to the stirring drive shaft (2) via a first flexible annular transmission device, and at least one side of the frame corresponding to the first flexible annular transmission device is provided with a first tensioning adjustment device (6) for applying pressure thereto; the dispersion drive motor (20) is connected to the dispersion drive shaft (1) via a second flexible annular transmission device, and at least one side of the frame corresponding to the second flexible annular transmission device is provided with a second tensioning adjustment device (7) for applying pressure thereto.

10. The battery material stirring device convenient for maintenance according to claim 7, characterized in that: The barrel wall of the material barrel (5) comprises an outer wall plate (55) and an inner wall plate (52), a sandwich layer (54) is formed between the outer wall plate (55) and the inner wall plate (52), and a heat sink (53) is provided on the surface of the inner wall plate (52) facing the sandwich layer (54).

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