Powder blocking shaft sleeve, motor base and electrode powder stirring equipment

Abstract

The utility model provides a powder blocking shaft sleeve, a motor base and electrode powder stirring equipment. The powder blocking shaft sleeve comprises a wear-resistant inner sleeve, a fastening outer sleeve and a wear-resistant powder blocking sleeve; the wear-resistant powder blocking sleeve is used for being arranged close to a penetrating opening of the powder temporary storage bin, the inner wall of the wear-resistant powder blocking sleeve is used for being rotationally arranged on the shaft wall of the rotating shaft in a sleeving mode, and the outer wall of the wear-resistant powder blocking sleeve is used for being clamped and sealed in the penetrating opening. The wear-resistant inner sleeve is rotationally arranged on the shaft wall of the rotating shaft in a sleeving mode and abuts against the end, away from the penetrating opening, of the wear-resistant powder blocking sleeve, and the fastening outer sleeve is connected to the exterior of the wear-resistant inner sleeve in a sleeving mode and used for being connected to a powder temporary storage bin; the fastening outer sleeve abuts against the abrasion-resistant powder blocking sleeve through the abrasion-resistant inner sleeve. The powder blocking shaft sleeve can effectively seal the penetrating opening of the powder temporary storage bin, and when the rotating shaft rotates, the battery powder stirred by the rotating shaft can be blocked by the wear-resistant powder blocking sleeve, so that the battery powder is difficult to enter a bearing of a stirring motor through the penetrating opening, and the wear of the bearing of the stirring motor can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of electrode powder preparation, and in particular to a powder retaining sleeve, a motor seat and electrode powder stirring equipment. Background Art

[0002] With the rapid development of the new energy industry, the demand for electrode materials is also increasing. Among them, the positive electrode materials of batteries need to go through the processes of powder blending-drying-sintering-cooling-sintering during the production process. Some manufacturers have made research and development to improve the cooling rate.

[0003] like Figure 1 As shown, some manufacturers have developed an electrode powder temporary storage and cooling device 20, including a powder temporary storage bin 200, a stirring motor 300, a rotating shaft 400 and a plurality of stirring paddles (not shown in the figure), a through opening 210 is opened on the bin wall of the powder temporary storage bin 200, the stirring motor 300 is fixedly arranged on the outside of the powder temporary storage bin 200, the rotating shaft 400 is arranged in the powder temporary storage bin 200, the rotating shaft 400 is connected to the power output end of the stirring motor 300 through the through opening 210, a plurality of stirring paddles are arranged on the rotating shaft 400, and the stirring motor 300 can drive the plurality of stirring paddles to continuously turn over the electrode powder in the powder temporary storage bin 200 through the rotating shaft 400.

[0004] However, the design of the above-mentioned electrode powder temporary storage and cooling equipment has the following problems:

[0005] In the above-mentioned electrode powder temporary storage and cooling device 20, although the electrode powder can accelerate heat dissipation through the continuous turning of the stirring paddles, the rotating shaft 400 is connected to the power output end of the stirring motor 300 by penetrating the through-hole 210, and the electrode powder in the powder temporary storage bin 200 can easily enter the stirring motor 300 through the gap between the rotating shaft 400 and the through-hole 210 after being stirred. When the electrode powder enters the stirring motor 300, the bearing 310 of the stirring motor 300 will be worn to produce magnetic debris, and the magnetic debris will enter the powder temporary storage bin 200 through the through-hole 210, further causing contamination of the electrode powder. Utility Model Content

[0006] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a powder retaining sleeve, a motor seat and an electrode powder stirring device that are securely installed and have good sealing properties.

[0007] The purpose of this disclosure is achieved through the following technical solutions:

[0008] A powder-blocking sleeve comprises a wear-resistant inner sleeve, a fastening outer sleeve and a wear-resistant powder-blocking sleeve;

[0009] The wear-resistant powder-blocking sleeve is used to be arranged close to the penetration opening of the powder temporary storage bin, the inner wall of the wear-resistant powder-blocking sleeve is used to be rotatably mounted on the shaft wall of the rotating shaft, and the outer wall of the wear-resistant powder-blocking sleeve is used to be clamped and sealed on the penetration opening; the wear-resistant inner sleeve is used to be rotatably mounted on the shaft wall of the rotating shaft, and the wear-resistant inner sleeve abuts against one end of the wear-resistant powder-blocking sleeve away from the penetration opening; the fastening outer sleeve is sleeved on the outside of the wear-resistant inner sleeve and is used to be connected to the powder temporary storage bin; the fastening outer sleeve presses against the wear-resistant powder-blocking sleeve through the wear-resistant inner sleeve.

[0010] In one embodiment, the wear-resistant inner sleeve includes a connected elastic sleeve body and a pressure step, the elastic sleeve body is used to rotatably sleeve on the shaft wall of the rotating shaft, and the pressure step is close to and abuts against the wear-resistant powder-blocking sleeve; the inner cavity of the fastening outer sleeve is divided into a connected sleeve cavity and an abutment cavity, the cavity wall of the sleeve cavity is sleeved on the outside of the elastic sleeve body, and the cavity wall of the abutment cavity is held against the pressure step.

[0011] In one of the embodiments, a resistance reducing groove is formed on the inner peripheral wall of the elastic sleeve.

[0012] In one embodiment, the elastic sleeve body includes a sleeve inner layer and an abutment outer layer, the sleeve inner layer is used to be rotatably sleeved on the rotating shaft, the sleeve inner layer is provided with a plurality of air holes distributed along the axial direction, each of the air holes extends radially along the sleeve inner layer, so that a plurality of abutment blocks are formed on the sleeve inner layer along the axial direction, each of the abutment blocks is used to abut against the shaft wall of the rotating shaft; the abutment outer layer is arranged outside the sleeve inner layer, the fastening sleeve is sleeved outside the abutment outer layer, a compressed air cavity is formed between the sleeve inner layer and the abutment outer layer, and each of the air holes is connected to the compressed air cavity.

[0013] A motor seat, comprising a support frame and a powder blocking sleeve of any one of the above embodiments; the opposite ends of the support frame are respectively used to connect the stirring motor and the powder temporary storage bin, a dust barrier cavity is formed in the support frame, a cavity wall of the dust barrier cavity is provided with a first shaft opening communicating with the penetration opening, and the first shaft opening is used to communicate with the power output end of the stirring motor through the dust barrier cavity;

[0014] The powder-blocking sleeve is arranged in the dust-blocking cavity, and both ends of the wear-resistant powder-blocking sleeve are respectively provided with an embedding portion and a supporting portion, the embedding portion is used to be embedded in the penetration opening; the supporting portion is arranged in the first shaft opening; the fastening outer sleeve is connected to the cavity wall of the dust-blocking cavity, and the wear-resistant inner sleeve is supported by the supporting portion, so that the embedding portion can be pressed and sealed on the periphery of the penetration opening.

[0015] In one embodiment, the support frame includes a motor support plate, a storage plate, a first support arm and a second support arm. The motor support plate is used to install the stirring motor, and a second shaft opening communicating with a power output end of the stirring motor is provided on the motor support plate; the storage plate is used to connect the powder temporary storage bin, and the first shaft opening is provided on the storage plate; the first end of the first support arm and the first end of the second support arm are respectively supported on both sides of the storage plate located at the first shaft opening, and the second end of the first support arm and the second end of the second support arm are respectively supported on both sides of the motor support plate located at the second shaft opening, so that the dust barrier chamber is formed between the motor support plate and the storage plate.

[0016] In one of the embodiments, an observation gap is formed between the first support arm and the second support arm, and the observation gap corresponds to the position of the powder blocking sleeve.

[0017] In one embodiment, the first through-shaft opening includes a locking mounting groove and an embedded mounting cavity that are interconnected; the embedded mounting cavity is arranged at the bottom of the locking mounting groove and is connected to the penetration opening; the fixed end of the fastening sleeve is arranged in the locking mounting groove and is screwed to the bottom of the locking mounting groove; the abutting portion of the wear-resistant powder blocking sleeve is arranged in the embedded mounting cavity and abuts against the end face of the fixed end of the fastening sleeve, and the embedded portion of the wear-resistant powder blocking sleeve is clamped and sealed in the penetration opening.

[0018] An electrode powder stirring device comprises a powder temporary storage bin, a stirring motor and a rotating shaft, and the electrode powder stirring device also comprises a motor base of any one of the above-mentioned embodiments; the motor base is arranged between the stirring motor and the powder temporary storage bin, the rotating shaft is connected to the power output end of the stirring motor through the through-hole of the powder temporary storage bin, the first shaft through-hole, the dust barrier cavity and the second shaft through-hole in sequence, and the powder blocking sleeve is rotatably sleeved on the rotating shaft.

[0019] In one embodiment, the penetration opening includes a connected panel groove and a nesting cavity; the nesting cavity is arranged at the bottom of the panel groove and is connected to the inner cavity of the powder temporary storage bin; the chamber stop plate is arranged in the panel groove and is screwed to the bottom of the panel groove; the chamber stop plate is provided with a sealing convex portion protruding into the nesting cavity along the periphery of the embedded installation cavity; the cavity wall of the nesting cavity is provided with a limiting abutment; the embedded portion of the wear-resistant powder blocking sleeve is arranged in the nesting cavity and is tightly pressed against the limiting abutment, and the end face of the embedded portion of the wear-resistant powder blocking sleeve is provided with a sealing edge protruding around the rotating shaft, and the sealing edge is sealingly embedded between the shaft wall of the rotating shaft and the limiting abutment.

[0020] Compared with the prior art, the present invention has the following advantages, including but not limited to:

[0021] 1) By rotating the inner wall of the wear-resistant powder-blocking sleeve on the shaft wall of the rotating shaft, because the wear-resistant powder-blocking sleeve is arranged close to the insertion opening of the powder temporary storage bin, the outer wall of the wear-resistant powder-blocking sleeve is clamped and sealed at the insertion opening, and because the wear-resistant inner sleeve is abutted against the end of the wear-resistant powder-blocking sleeve away from the insertion opening, the fastening outer sleeve is sleeved on the outside of the wear-resistant inner sleeve. When the fastening outer sleeve is connected to the powder temporary storage bin, the fastening outer sleeve will push the wear-resistant inner sleeve to press against the wear-resistant powder-blocking sleeve, and the wear-resistant powder-blocking sleeve is firmly clamped and sealed at the insertion opening under pressure. At the same time, the wear-resistant inner sleeve and the wear-resistant powder-blocking sleeve are both pressed and fixed by the fastening outer sleeve and will not rotate with the rotating shaft. The wear-resistant inner sleeve and the wear-resistant powder-blocking sleeve are both rotatably sleeved on the shaft wall of the rotating shaft, and the rotating shaft and the wear-resistant inner sleeve and the wear-resistant powder-blocking sleeve can rotate relatively smoothly with less wear.

[0022] 2) The above-mentioned powder blocking sleeve can effectively seal the penetration opening of the powder temporary storage bin. When the shaft rotates, the battery powder stirred by the shaft will be blocked by the wear-resistant powder blocking sleeve, making it difficult for the battery powder to enter the bearing of the stirring motor through the penetration opening, thereby reducing the wear of the bearing of the stirring motor. At the same time, the magnetic debris generated by the wear of the bearing of the stirring motor can also be blocked by the wear-resistant powder blocking sleeve outside the powder temporary storage bin, thereby making the electrode powder in the powder temporary storage bin less likely to be contaminated.

[0023] 3) Because the fastening outer sleeve is sleeved on the outside of the wear-resistant inner sleeve, and the wear-resistant inner sleeve is rotatably sleeved on the shaft wall of the rotating shaft, the fastening outer sleeve is indirectly in contact with the shaft wall of the rotating shaft through the wear-resistant inner sleeve. When the wear-resistant inner sleeve is worn by the rotating shaft, only the wear-resistant inner sleeve can be replaced, thereby reducing material loss and saving production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A cross-sectional view of a prior art electrode powder temporary storage and cooling device;

[0026] Figure 2 A cross-sectional view of an electrode powder stirring device using a powder retaining sleeve according to an embodiment;

[0027] Figure 2a for Figure 2 A cross-sectional view of the powder retaining sleeve in the installation state shown in the middle part A;

[0028] Figure 3 A cross-sectional view of a powder retaining sleeve in an installed state according to another embodiment of the present disclosure;

[0029] Figure 4 This is a cross-sectional view of the motor base installation state according to another embodiment of the present disclosure.

[0030] Figure numerals: 10, electrode powder mixing equipment; 100, motor seat; 110, powder blocking sleeve; 1110, wear-resistant inner sleeve; 1111, elastic sleeve; 111a, abutting outer layer; 111b, compressed air cavity; 111c, sleeve inner layer; 111d, abutting block; 111e, air hole; 111f, resistance reduction groove; 1112, pressing step; 1120, fastening outer sleeve; 1121, sleeve cavity; 1122, abutting cavity; 1130, wear-resistant powder blocking sleeve; 1131, abutting portion; 1132, embedded portion; 1133, sealing edge; 120 , support frame; 1210, motor support plate; 1211, second shaft opening; 1220, storage plate; 1221, first shaft opening; 122a, locking installation groove; 122b, embedded installation cavity; 122c, sealing convex portion; 1230, first support arm; 1240, second support arm; 1250, dust barrier cavity; 200, powder temporary storage bin; 210, penetration opening; 2110, panel groove; 2120, nested cavity; 2121, limit stop platform; 300, stirring motor; 310, bearing; 400, rotating shaft; 20, electrode powder temporary storage and cooling equipment. DETAILED DESCRIPTION

[0031] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present disclosure are given in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thoroughly and comprehensively understood.

[0032] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present disclosure. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0034] In order to better understand the technical solutions and beneficial effects of the present invention, the present invention is further described in detail below in conjunction with specific embodiments:

[0035] like Figure 2 and Figure 2a As shown, the powder-blocking sleeve 110 of one embodiment includes a wear-resistant inner sleeve 1110, a tightening outer sleeve 1120 and a wear-resistant powder-blocking sleeve 1130; the wear-resistant powder-blocking sleeve 1130 is used to be arranged close to the penetration opening 210 of the powder temporary storage bin 200, the inner wall of the wear-resistant powder-blocking sleeve 1130 is used to be rotatably sleeved on the shaft wall of the rotating shaft 400, and the outer wall of the wear-resistant powder-blocking sleeve 1130 is used to be clamped and sealed on the penetration opening 210; the wear-resistant inner sleeve 1110 is used to be rotatably sleeved on the shaft wall of the rotating shaft 400, and the wear-resistant inner sleeve 1110 is abutted against one end of the wear-resistant powder-blocking sleeve 1130 away from the penetration opening 210; the tightening outer sleeve 1120 is sleeved on the outside of the wear-resistant inner sleeve 1110, and is used to be connected to the powder temporary storage bin 200; the tightening outer sleeve 1120 is pressed against the wear-resistant powder-blocking sleeve 1130 through the wear-resistant inner sleeve 1110.

[0036] It can be understood that by rotating the inner wall of the wear-resistant powder blocking sleeve 1130 onto the shaft wall of the rotating shaft 400, because the wear-resistant powder blocking sleeve 1130 is arranged close to the penetration opening 210 of the powder temporary storage bin 200, the outer wall of the wear-resistant powder blocking sleeve 1130 is clamped and sealed on the penetration opening 210. Because the wear-resistant inner sleeve 1110 is in contact with the end of the wear-resistant powder-blocking sleeve 1130 away from the insertion opening 210, and the fastening outer sleeve 1120 is sleeved on the outside of the wear-resistant inner sleeve 1110, when the fastening outer sleeve 1120 is connected to the powder temporary storage bin 200, the fastening outer sleeve 1120 will push the wear-resistant inner sleeve 1110 to press against the wear-resistant powder-blocking sleeve 1130, and the wear-resistant powder-blocking sleeve 1130 is firmly clamped and sealed to the insertion opening 210 under pressure, and at the same time, the wear-resistant inner sleeve 1110 and the wear-resistant powder-blocking sleeve 1130 are both pressed and fixed by the fastening outer sleeve 1120 and will not rotate with the rotating shaft 400. The wear-resistant inner sleeve 1110 and the wear-resistant powder-blocking sleeve 1130 are both rotatably sleeved on the shaft wall of the rotating shaft 400, and the rotating shaft 400 and the wear-resistant inner sleeve 1110 and the wear-resistant powder-blocking sleeve can all rotate relatively smoothly with less wear.

[0037] It can be understood that the powder-blocking sleeve 110 can effectively seal the penetration opening 210 of the powder temporary storage bin 200. When the rotating shaft 400 rotates, the battery powder stirred by the rotating shaft 400 will be blocked by the wear-resistant powder-blocking sleeve 1130, making it difficult for the battery powder to pass through the penetration opening 210 and enter the bearing 310 of the stirring motor 300, thereby reducing the wear of the bearing 310 of the stirring motor 300. At the same time, the magnetic debris generated by the wear of the bearing 310 of the stirring motor 300 can also be blocked by the wear-resistant powder-blocking sleeve 1130 outside the powder temporary storage bin 200, thereby making the electrode powder in the powder temporary storage bin 200 less likely to be contaminated.

[0038] It can be understood that because the fastening outer sleeve 1120 is sleeved on the outside of the wear-resistant inner sleeve 1110, and the wear-resistant inner sleeve 1110 is rotatably sleeved on the shaft wall of the rotating shaft 400, the fastening outer sleeve 1120 is indirectly in contact with the shaft wall of the rotating shaft 400 through the wear-resistant inner sleeve 1110. When the wear-resistant inner sleeve 1110 is worn by the rotating shaft 400, only the wear-resistant inner sleeve 1110 can be replaced, thereby reducing material loss and saving production costs.

[0039] In one embodiment, the wear-resistant inner sleeve 1110, the fastening outer sleeve 1120 or the wear-resistant powder-blocking sleeve 1130 may be a wear-resistant structure. Specifically, the wear-resistant structure may be a polytetrafluoroethylene structure, a graphite structure, a molybdenum disulfide structure, a carbon fiber structure, a polysiloxane structure, a glass fiber structure, an aromatic polyamide fiber structure, etc., which are not limited here and other options may be made. It can be understood that by setting the wear-resistant inner sleeve 1110, the fastening outer sleeve 1120 or the wear-resistant powder-blocking sleeve 1130 as a wear-resistant structure, the wear-resistant structure not only has good wear resistance, but also can volatilize from the electrode powder at high temperature after wear, and will not cause pollution to the electrode powder.

[0040] In one embodiment, the wear-resistant inner sleeve 1110 includes a connected elastic sleeve body 1111 and a pressing step 1112, the elastic sleeve body 1111 is used to rotate and sleeve on the shaft wall of the rotating shaft 400, and the pressing step 1112 is close to and abuts on the wear-resistant powder blocking sleeve 1130; the inner cavity of the fastening outer sleeve 1120 is divided into a connected sleeve cavity 1121 and an abutting cavity 1122, the cavity wall of the sleeve cavity 1121 is sleeved on the outside of the elastic sleeve body 1111, and the cavity wall of the abutting cavity 1122 is held against the pressing step 1112. It can be understood that, because the pressing step 1112 is connected to the elastic sleeve 1111 and is disposed close to the wear-resistant powder-blocking sleeve 1130, by sleeve-fitting the cavity wall of the sleeve cavity 1121 to the outside of the elastic sleeve 1111, the cavity wall of the abutting cavity 1122 is held against the pressing step 1112, so that the fastening outer sleeve 1120 can be securely sleeved to the outside of the wear-resistant inner sleeve 1110, and the wear-resistant inner sleeve 1110 is less likely to fall out of the fastening outer sleeve 1120. At the same time, because the pressing step 1112 is in contact with the wear-resistant powder-blocking sleeve 1130, the contact surface between the pressing step 1112 and the wear-resistant powder-blocking sleeve 1130 is larger, and more pressure of the fastening outer sleeve 1120 can be transmitted to the wear-resistant powder-blocking sleeve 1130, so that the wear-resistant powder-blocking sleeve 1130 can securely press the sealing penetration opening 210.

[0041] In one embodiment, a resistance-reducing groove 111f is provided on the inner circumferential wall of the elastic sleeve 1111. It can be understood that by providing the resistance-reducing groove 111f on the inner circumferential wall of the elastic sleeve 1111, when the elastic sleeve 1111 is sleeved on the shaft wall of the rotating shaft 400, a gap is formed between the resistance-reducing groove 111f and the shaft wall of the rotating shaft 400, thereby reducing the friction between the elastic sleeve 1111 and the shaft wall of the rotating shaft 400, which not only reduces the interference with the rotation of the rotating shaft 400 to reduce the wear caused by the relative rotation between the elastic sleeve 1111 and the rotating shaft 400, but also facilitates the elastic sleeve 1111 to be sleeved on the shaft wall of the rotating shaft 400 to facilitate the replacement of the wear-resistant inner sleeve 1110.

[0042] like Figure 3As shown, further, in another embodiment, the elastic sleeve body 1111 includes a sleeve inner layer 111c and an abutting outer layer 111a, the sleeve inner layer 111c is used to be rotatably sleeved on the rotating shaft 400, and the sleeve inner layer 111c is provided with a plurality of air holes 111e distributed along the axial direction, and each air hole 111e extends along the radial direction of the sleeve inner layer 111c, so that a plurality of abutting blocks 111d are formed on the sleeve inner layer 111c along the axial direction, and each abutting block 111d is used to abut against the shaft wall of the rotating shaft 400; the abutting outer layer 111a is arranged outside the sleeve inner layer 111c, and the fastening outer sleeve 1120 is sleeved outside the abutting outer layer 111a, and a compressed air cavity 111b is formed between the sleeve inner layer 111c and the abutting outer layer 111a, and each air hole 111e is connected to the compressed air cavity 111b. It can be understood that each air hole 111e extends radially along the sleeve inner layer 111c, so that a plurality of blocks 111d are formed axially on the sleeve inner layer 111c, thereby reducing the contact between the elastic sleeve body 1111 and the shaft wall of the rotating shaft 400 and reducing friction. Because the sleeve inner layer 111c and the abutting outer layer 111a are provided with a compressed air cavity 111b, each air hole 111e is connected to the compressed air cavity 111b. When compressed air is introduced into the compressed air cavity 111b, the compressed air passes through the air holes 111e to fill the gap between each block 111d and the shaft wall of the rotating shaft 400 to form an air-tight effect, thereby reducing the friction and temperature between the block 111d and the shaft wall of the rotating shaft 400. At the same time, part of the compressed air will also leak out from the gap between the two ends of the elastic sleeve 1111 and the shaft wall of the rotating shaft 400, so as to achieve the effect of simultaneously blowing toward the powder temporary storage bin 200 and the bearing 310 of the stirring motor 300, which can not only effectively blow the stirred electrode powder into the powder temporary storage bin 200, but also blow away the magnetic debris generated by the wear of the bearing 310 of the stirring motor 300 from the powder temporary storage bin 200. Specifically, an air gap is provided between the wear-resistant powder-blocking sleeve 1130 and the rotating shaft 400. It can be understood that not only can the wear-resistant powder-blocking sleeve 1130 and the rotating shaft 400 be avoided from direct contact and wear, but also compressed air can be circulated, and the compressed air flow can purge the powder temporary storage bin 200 through the air gap, which can effectively prevent the electrode powder from leaking out through the penetration port 210. Among them, the air gap is 5mm, which is not limited here, and those skilled in the art can also make other choices according to needs.

[0043] like Figure 4As shown, the present disclosure further provides a motor base 100, including a support frame 120 and a powder blocking sleeve 110 of any of the above-mentioned embodiments; the opposite ends of the support frame 120 are respectively used to connect the stirring motor 300 and the powder temporary storage bin 200, and a dust barrier cavity 1250 is formed in the support frame 120. The cavity wall of the dust barrier cavity 1250 is provided with a first shaft opening 1221 that communicates with the penetration opening 210. The first shaft opening 1221 is used to communicate with the stirring motor 300 through the dust barrier cavity 1250. Power output end; the powder-blocking sleeve 110 is arranged in the dust barrier cavity 1250, and the two ends of the wear-resistant powder-blocking sleeve 1130 are respectively provided with an embedding portion 1132 and a supporting portion 1131, the embedding portion 1132 is used to be embedded in the penetration opening 210; the supporting portion 1131 is arranged in the first shaft opening 1221; the fastening outer sleeve 1120 is connected to the cavity wall of the dust barrier cavity 1250, and the wear-resistant inner sleeve 1110 is supported on the supporting portion 1131, so that the embedding portion 1132 can be pressed and sealed on the periphery of the penetration opening 210. It can be understood that because the stirring motor 300 is connected to the powder temporary storage bin 200 through the support frame 120, the first shaft opening 1221 is connected to the power output end of the stirring motor 300 through the dust barrier chamber 1250 set in the support frame 120, so that the rotating shaft 400 can pass through the through-opening 210, the first shaft opening 1221 and the dust barrier chamber 1250 in sequence to be connected to the power output end of the motor. By setting the powder blocking sleeve 110 in the dust blocking chamber 1250, because the inner wall of the wear-resistant powder blocking sleeve 1130 is rotatably sleeved on the shaft wall of the rotating shaft 400, and the embedded part 1132 of the wear-resistant powder blocking sleeve 1130 is sealed and embedded in the penetration opening 210, and the outer sleeve 1120 is connected to the cavity wall of the dust blocking chamber 1250 by tightening the outer sleeve 1120, the wear-resistant inner sleeve 1110 is abutted against the abutting part 1131 of the wear-resistant powder blocking sleeve 1130, so that the abutting part 1131 can be pressed and sealed on the periphery of the penetration opening 210, and finally a good sealing effect is achieved on the penetration opening 210, thereby reducing the electrode powder from floating out of the powder temporary storage bin 200. At the same time, the support frame 120 separates the stirring motor 300 and the powder temporary storage bin 200 , so that a small amount of electrode powder floating out will be blocked in the dust blocking chamber 1250 , and can further prevent the electrode powder from entering the bearing 310 of the stirring motor 300 .

[0044] like Figure 4As shown, further, in one embodiment, the support frame 120 includes a motor support plate 1210, a storage plate 1220, a first support arm 1230 and a second support arm 1240, the motor support plate 1210 is used to install the stirring motor 300, and a second shaft opening 1211 communicating with the power output end of the stirring motor 300 is opened on the motor support plate 1210; the storage plate 1220 is used to connect the powder temporary storage bin 200, and the first shaft opening 1221 is opened on the storage plate 1220; the first end of the first support arm 1230 and the first end of the second support arm 1240 are respectively abutted against the storage plate 1220 at both sides of the first shaft opening 1221, and the second end of the first support arm 1230 and the second end of the second support arm 1240 are respectively abutted against the motor support plate 1210 at both sides of the second shaft opening 1211, so that a dust barrier chamber 1250 is formed between the motor support plate 1210 and the storage plate 1220. It can be understood that the first end of the first support arm 1230 and the first end of the second support arm 1240 are respectively supported on the two sides of the first shaft opening 1221 of the anti-bin plate 1220, and the second end of the first support arm 1230 and the second end of the second support arm 1240 are respectively supported on the two sides of the motor support plate 1210 at the second shaft opening 1211, so that the motor support plate 1210 can be separated from the anti-bin plate 1220 by the supporting effect of the first support arm 1230 and the second support arm 1240 to form a dust barrier chamber 1250 with a stable structure, compact structure and good load-bearing effect.

[0045] like Figure 4 As shown, in one embodiment, an observation gap is formed between the first support arm 1230 and the second support arm 1240, and the observation gap corresponds to the position of the powder blocking sleeve 110. It can be understood that the user can observe the use of the powder blocking sleeve 110 and the generation of electrode powder and magnetic debris in real time through the observation gap formed between the first support arm 1230 and the second support arm 1240, and can judge whether the powder blocking sleeve 110 needs to be replaced according to the real-time working conditions, which is more practical.

[0046] like Figure 4As shown, in one embodiment, the first through-shaft opening 1221 includes a interconnected locking mounting groove 122a and an embedded mounting cavity 122b; the embedded mounting cavity 122b is arranged at the bottom of the locking mounting groove 122a and is connected to the penetration opening 210; the fixed end of the fastening sleeve 1120 is arranged in the locking mounting groove 122a and is screwed to the bottom of the locking mounting groove 122a; the supporting portion 1131 of the wear-resistant powder blocking sleeve 1130 is arranged in the embedded mounting cavity 122b and is supported on the end face of the fixed end of the fastening sleeve 1120, and the embedded portion 1132 of the wear-resistant powder blocking sleeve 1130 is clamped and sealed in the penetration opening 210. It can be understood that by setting the fixed end of the fastening sleeve 1120 in the locking installation groove 122a, the fixed end of the fastening sleeve 1120 is screwed to the bottom of the locking installation groove 122a, so that the fastening sleeve 1120 can be firmly installed in the locking installation groove 122a. At the same time, because the abutting portion 1131 of the wear-resistant powder blocking sleeve 1130 is set in the embedded installation cavity 122b, the end face of the fixed end of the fastening sleeve 1120 can push the embedded portion 1132 of the wear-resistant powder blocking sleeve 1130 by abutting the abutting portion 1131 of the wear-resistant powder blocking sleeve 1130, so that the embedded portion 1132 of the wear-resistant powder blocking sleeve 1130 is more tightly clamped and sealed in the penetration opening 210, further improving the blocking effect of the penetration opening 210.

[0047] like Figure 2 As shown, the present disclosure further provides an electrode powder stirring device 10 including a powder temporary storage bin 200, a stirring motor 300 and a rotating shaft 400, and the electrode powder stirring device 10 also includes a motor base 100 of any of the above embodiments; the motor base 100 is arranged between the stirring motor 300 and the powder temporary storage bin 200, the rotating shaft 400 is connected to the power output end of the stirring motor 300 through the through-hole 210, the first through-shaft hole 1221, the dust blocking cavity 1250 and the second through-shaft hole 1211 of the powder temporary storage bin 200 in sequence, and the powder blocking sleeve 110 is rotatably sleeved on the rotating shaft 400. It can be understood that by applying the motor base 100 of the present disclosure to the electrode powder stirring device 10, the powder blocking sleeve 110 can be sleeved on the rotating shaft 400, and the through-hole 210 on the powder temporary storage bin 200 is sealed to prevent the leakage of the electrode powder. At the same time, because the motor seat 100 is arranged between the stirring motor 300 and the powder temporary storage bin 200, the stirring motor 300 can be separated from the powder temporary storage bin 200, so that a small amount of electrode powder that floats out will also be blocked in the dust barrier cavity 1250 of the support frame 120, and can further prevent the electrode powder from entering the bearing 310 of the stirring motor 300.

[0048] like Figure 2As shown, further, the penetration opening 210 includes a connected panel groove 2110 and a nesting cavity 2120; the nesting cavity 2120 is arranged at the bottom of the panel groove 2110 and is connected to the inner cavity of the powder temporary storage bin 200; the storage plate 1220 is arranged in the panel groove 2110 and is screwed to the bottom of the panel groove 2110; the storage plate 1220 is provided with a sealing protrusion along the periphery of the embedded installation cavity 122b toward the nesting cavity 2120 Protrusion 122c; the cavity wall of the nested cavity 2120 is provided with a limiting abutment 2121, the embedded portion 1132 of the wear-resistant powder blocking sleeve 1130 is arranged in the nested cavity 2120 and is tightly pressed against the limiting abutment 2121, and the end face of the embedded portion 1132 of the wear-resistant powder blocking sleeve 1130 is convexly provided with a sealing edge 1133 around the rotating shaft 400, and the sealing edge 1133 is sealingly embedded between the shaft wall of the rotating shaft 400 and the limiting abutment 2121. It can be understood that by arranging the anti-bin plate 1220 in the panel groove 2110, the anti-bin plate 1220 is screwed to the bottom of the panel groove 2110, so that the anti-bin plate 1220 can be more firmly installed in the panel groove 2110, and because the anti-bin plate 1220 is provided with a sealing protrusion 122c protruding into the nested cavity 2120 along the periphery of the embedded installation cavity 122b, the anti-bin plate 1220 can further seal the penetration opening 210 through the sealing protrusion 122c. At the same time, because the embedded part 1132 of the wear-resistant powder-blocking sleeve 1130 is arranged in the nesting cavity 2120, by making the embedded part 1132 of the wear-resistant powder-blocking sleeve 1130 press against the limiting abutment 2121, the wear-resistant powder-blocking sleeve 1130 can be more stably fixed in the penetration opening 210 and will not be driven by the rotating shaft 400, and because the end face of the embedded part 1132 of the wear-resistant powder-blocking sleeve 1130 is convexly provided with a sealing edge 1133 around the rotating shaft 400, the wear-resistant powder-blocking sleeve 1130 can fill the gap between the shaft wall of the rotating shaft 400 and the limiting abutment 2121 through the sealing edge 1133, so that the wear-resistant powder-blocking sleeve 1130 can be firmly fixed while achieving a good sealing effect.

[0049] In one embodiment, for ease of understanding, the working process of the electrode powder stirring device 10 of the above embodiment is described as follows:

[0050] like Figure 2 As shown, after the electrode powder is sintered, the electrode powder is transferred to the inner cavity of the powder temporary storage bin 200, and the stirring motor 300 is started. The power output end of the stirring motor 300 drives the rotating shaft 400 to rotate, and the plurality of stirring paddles on the rotating shaft 400 stir the electrode powder stored in the inner cavity of the powder temporary storage bin 200. The electrode powder is continuously turned over by the plurality of stirring paddles to accelerate the heat dissipation. At the same time, because the powder blocking sleeve 110 blocks the penetration opening 210, the stirred electrode powder is blocked by the powder blocking sleeve 110 in the powder temporary storage bin 200, and it is difficult to enter the bearing 310 of the stirring motor 300 through the penetration opening 210, thereby reducing the wear of the motor bearing 310 to produce magnetic debris.

[0051] Compared with the prior art, the present invention has the following advantages, including but not limited to:

[0052] 1) By rotating the inner wall of the wear-resistant powder blocking sleeve 1130 onto the shaft wall of the rotating shaft 400 , the outer wall of the wear-resistant powder blocking sleeve 1130 is clamped and sealed at the penetration opening 210 because the wear-resistant powder blocking sleeve 1130 is arranged close to the penetration opening 210 of the powder temporary storage bin 200 . Because the wear-resistant inner sleeve 1110 is in contact with the end of the wear-resistant powder-blocking sleeve 1130 away from the insertion opening 210, and the fastening outer sleeve 1120 is sleeved on the outside of the wear-resistant inner sleeve 1110, when the fastening outer sleeve 1120 is connected to the powder temporary storage bin 200, the fastening outer sleeve 1120 will push the wear-resistant inner sleeve 1110 to press against the wear-resistant powder-blocking sleeve 1130, and the wear-resistant powder-blocking sleeve 1130 is firmly clamped and sealed to the insertion opening 210 under pressure, and at the same time, the wear-resistant inner sleeve 1110 and the wear-resistant powder-blocking sleeve 1130 are both pressed and fixed by the fastening outer sleeve 1120 and will not rotate with the rotating shaft 400. The wear-resistant inner sleeve 1110 and the wear-resistant powder-blocking sleeve 1130 are both rotatably sleeved on the shaft wall of the rotating shaft 400, and the rotating shaft 400 and the wear-resistant inner sleeve 1110 and the wear-resistant powder-blocking sleeve can all rotate relatively smoothly with less wear.

[0053] 2) The above-mentioned powder blocking sleeve 110 can effectively seal the penetration opening 210 of the powder temporary storage bin 200. When the rotating shaft 400 rotates, the battery powder stirred by the rotating shaft 400 will be blocked by the wear-resistant powder blocking sleeve 1130, making it difficult for the battery powder to pass through the penetration opening 210 and enter the bearing 310 of the stirring motor 300, thereby reducing the wear of the bearing 310 of the stirring motor 300. At the same time, the magnetic debris generated by the wear of the bearing 310 of the stirring motor 300 can also be blocked outside the powder temporary storage bin 200 by the wear-resistant powder blocking sleeve 1130, thereby making the electrode powder in the powder temporary storage bin 200 less likely to be contaminated.

[0054] 3) Because the fastening outer sleeve 1120 is sleeved on the outside of the wear-resistant inner sleeve 1110, and the wear-resistant inner sleeve 1110 is rotatably sleeved on the shaft wall of the rotating shaft 400, the fastening outer sleeve 1120 is indirectly in contact with the shaft wall of the rotating shaft 400 through the wear-resistant inner sleeve 1110. When the wear-resistant inner sleeve 1110 is worn by the rotating shaft 400, only the wear-resistant inner sleeve 1110 can be replaced, thereby reducing material loss and saving production costs.

[0055] The above-mentioned embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the patent of the present disclosure shall be based on the attached claims.

Claims

1. A powder blocking sleeve (110), characterized in that: It comprises a wear-resistant inner sleeve (1110), a fastening outer sleeve (1120) and a wear-resistant powder-blocking sleeve (1130); The wear-resistant powder-blocking sleeve (1130) is used to be arranged close to the insertion opening (210) of the powder temporary storage bin (200); the inner wall of the wear-resistant powder-blocking sleeve (1130) is used to be rotatably sleeved on the shaft wall of the rotating shaft (400); the outer wall of the wear-resistant powder-blocking sleeve (1130) is used to be clamped and sealed on the insertion opening (210); the wear-resistant inner sleeve (1110) is used to be rotatably sleeved on the shaft wall of the rotating shaft (400), and the wear-resistant inner sleeve (1110) is abutted against one end of the wear-resistant powder-blocking sleeve (1130) away from the insertion opening (210); the fastening outer sleeve (1120) is sleeved on the outside of the wear-resistant inner sleeve (1110) and is used to be connected to the powder temporary storage bin (200); the fastening outer sleeve (1120) is pressed against the wear-resistant powder-blocking sleeve (1130) through the wear-resistant inner sleeve (1110).

2. The powder blocking sleeve (110) according to claim 1, characterized in that: The wear-resistant inner sleeve (1110) comprises an elastic sleeve body (1111) and a pressing step (1112) connected to each other. The elastic sleeve body (1111) is used for being rotatably sleeved on the shaft wall of the rotating shaft (400), and the pressing step (1112) is close to and abuts against the wear-resistant powder blocking sleeve (1130). The inner cavity of the fastening outer sleeve (1120) is divided into a sleeve cavity (1121) and an abutting cavity (1122) which are connected to each other. The cavity wall of the sleeve cavity (1121) is sleeved on the outside of the elastic sleeve body (1111), and the cavity wall of the abutting cavity (1122) abuts against the pressing step (1112).

3. The powder blocking sleeve (110) according to claim 2, characterized in that: The inner peripheral wall of the elastic sleeve (1111) is provided with a resistance-reducing groove (111f).

4. The powder blocking sleeve (110) according to claim 2, characterized in that: The elastic sleeve body (1111) comprises a sleeve inner layer (111c) and an abutment outer layer (111a), the sleeve inner layer (111c) is used for being rotatably sleeved on the rotating shaft (400), the sleeve inner layer (111c) is provided with a plurality of air holes (111e) distributed along the axial direction, each of the air holes (111e) extending along the radial direction of the sleeve inner layer (111c), so that a plurality of abutment blocks (111d) are formed on the sleeve inner layer (111c) along the axial direction, Each of the abutting blocks (111d) is used to abut against the shaft wall of the rotating shaft (400); the abutting outer layer (111a) is arranged on the outside of the sleeve inner layer (111c); the fastening outer sleeve (1120) is sleeved on the outside of the abutting outer layer (111a); a compressed air cavity (111b) is formed between the sleeve inner layer (111c) and the abutting outer layer (111a); and each of the air holes (111e) is connected to the compressed air cavity (111b).

5. A motor base (100), characterized in that: It comprises a support frame (120) and a powder blocking sleeve (110) according to any one of claims 1 to 4; the opposite ends of the support frame (120) are respectively used to connect the stirring motor (300) and the powder temporary storage bin (200); a dust barrier cavity (1250) is formed in the support frame (120); the cavity wall of the dust barrier cavity (1250) is provided with a first shaft opening (1221) communicating with the penetration opening (210); the first shaft opening (1221) is used to connect to the power output end of the stirring motor (300) through the dust barrier cavity (1250); The powder-blocking sleeve (110) is arranged in the dust-blocking cavity (1250), and the two ends of the wear-resistant powder-blocking sleeve (1130) are respectively provided with an embedding portion (1132) and a supporting portion (1131), wherein the embedding portion (1132) is used to be embedded in the penetration opening (210); the supporting portion (1131) is arranged in the first shaft opening (1221); the fastening outer sleeve (1120) is connected to the cavity wall of the dust-blocking cavity (1250), and the wear-resistant inner sleeve (1110) is supported by the supporting portion (1131), so that the embedding portion (1132) can be pressed and sealed on the periphery of the penetration opening (210).

6. The motor base (100) according to claim 5, characterized in that: The support frame (120) comprises a motor support plate (1210), a storage plate (1220), a first support arm (1230) and a second support arm (1240); the motor support plate (1210) is used to install the stirring motor (300); the motor support plate (1210) is provided with a second shaft opening (1211) which is communicated with the power output end of the stirring motor (300); the storage plate (1220) is used to connect the powder temporary storage bin (200); the first shaft opening (1221) is provided on the storage plate (1220) On; the first end of the first support arm (1230) and the first end of the second support arm (1240) are respectively abutted against the positions of the abutment plate (1220) on both sides of the first shaft opening (1221), and the second end of the first support arm (1230) and the second end of the second support arm (1240) are respectively abutted against the positions of the motor support plate (1210) on both sides of the second shaft opening (1211), so that the dust barrier cavity (1250) is formed between the motor support plate (1210) and the abutment plate (1220).

7. The motor base (100) according to claim 6, characterized in that: An observation gap is formed between the first support arm (1230) and the second support arm (1240), and the observation gap corresponds to the position of the powder blocking sleeve (110).

8. The motor base (100) according to claim 6, characterized in that: The first through-shaft opening (1221) includes a connected locking installation groove (122a) and an embedded installation cavity (122b); the embedded installation cavity (122b) is arranged at the bottom of the locking installation groove (122a) and is connected to the penetration opening (210); the fixed end of the fastening sleeve (1120) is arranged in the locking installation groove (122a) and is screwed to the bottom of the locking installation groove (122a); the abutting portion (1131) of the wear-resistant powder blocking sleeve (1130) is arranged in the embedded installation cavity (122b) and abuts against the end face of the fixed end of the fastening sleeve (1120), and the embedded portion (1132) of the wear-resistant powder blocking sleeve (1130) is clamped and sealed in the penetration opening (210).

9. An electrode powder stirring device (10), comprising a powder temporary storage bin (200), a stirring motor (300) and a rotating shaft (400), characterized in that: The electrode powder stirring device (10) also includes the motor base (100) described in claim 8; the motor base (100) is arranged between the stirring motor (300) and the powder temporary storage bin (200), and the rotating shaft (400) is connected to the power output end of the stirring motor (300) through the through-hole (210) of the powder temporary storage bin (200), the first shaft opening (1221), the dust barrier cavity (1250) and the second shaft opening (1211) in sequence, and the powder blocking sleeve (110) is rotatably sleeved on the rotating shaft (400).

10. The electrode powder stirring device (10) according to claim 9, characterized in that: The penetration opening (210) comprises a connected panel groove (2110) and a nesting cavity (2120); the nesting cavity (2120) is arranged at the bottom of the panel groove (2110) and is connected to the inner cavity of the powder temporary storage bin (200); the chamber stop plate (1220) is arranged in the panel groove (2110) and is screwed to the bottom of the panel groove (2110); the chamber stop plate (1220) is provided with a sealing protrusion (122b) protruding into the nesting cavity (2120) along the periphery of the embedded installation cavity (122b); 2c); the cavity wall of the nested cavity (2120) is provided with a limiting abutment (2121); the embedded portion (1132) of the wear-resistant powder-blocking sleeve (1130) is arranged in the nested cavity (2120) and is tightly pressed against the limiting abutment (2121); the end surface of the embedded portion (1132) of the wear-resistant powder-blocking sleeve (1130) is convexly provided with a sealing edge (1133) around the rotating shaft (400), and the sealing edge (1133) is sealingly embedded between the shaft wall of the rotating shaft (400) and the limiting abutment (2121).

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