Carbon brush manufacturing raw material mixing device

Abstract

The utility model relates to a carbon brush manufacturing raw material mixing device which is characterized by comprising a support frame, a stirring box, a stirring main shaft, a stirring auxiliary shaft, a stirring wheel, a folding rod frame, a similar long sleeve, a support device and a material containing device, the stirring box is connected to the supporting frame, the stirring wheel is located in the stirring box, the stirring main shaft is connected with the stirring box, the stirring auxiliary shaft is connected with the stirring wheel, when the stirring main shaft rotates, relative rotation is formed between the stirring box body and the outer shell, and a certain grinding effect is achieved on materials located in a gap between the stirring box body and the outer shell; the filtering device arranged on the box body can filter the materials, so that the materials entering the box body of the stirring box are uniform, and a more uniform mixture is obtained after the materials are stirred and mixed by the stirring wheels; the material containing device is located below the stirring box, and the obtained mixture is collected by the material containing device after being discharged out of the stirring box, so that the situation that the materials are blended into impurities in the external environment in the grinding, mixing and collecting processes in an open environment is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon brushes, in particular to a raw material mixing device for producing graphite carbon brushes. Background Art

[0002] Carbon brush is a kind of sliding contact part, which is widely used in electrical equipment, mainly a device for transferring energy or signal between the fixed part and the rotating part of motors, generators or other rotating machinery. Carbon brush materials mainly include graphite, impregnated graphite (colloidal powder), and metal (containing copper and silver) graphite. In the process of making carbon brushes, various raw materials need to be mixed and stirred, and the obtained mixed powder can be used to make graphite carbon brushes; the uniformity of the mixed powder affects the quality of the carbon brushes.

[0003] The prior art discloses a raw material mixing device for graphite carbon brush production, the document number of which is CN115400662B, which includes a secondary mixing component, on which a crushing ball and a screen plate are provided for crushing and screening the colloid raw materials, and a secondary stirring barrel and a secondary stirring blade are provided on the secondary mixing component for mixing all the raw materials; the raw materials added to the secondary mixing component can be ground, stirred and mixed;

[0004] However, in the above scheme, the grinding process is in an open state, and some impurities in the external space are easily absorbed during the entire grinding process, thereby affecting the quality of the mixed powder produced later. In addition, the device needs to perform a grinding process first, and then put the ground raw materials into a secondary mixing component for mixing, which is more troublesome. Utility Model Content

[0005] The utility model aims to provide a raw material mixing device for making a carbon brush which can improve the mixing efficiency.

[0006] The technical solution adopted by the utility model to solve the above technical problems is: a carbon brush manufacturing raw material mixing device, including a stirring box, a stirring wheel is arranged in the stirring box, the stirring box includes an outer shell and a box body, the box body is located in the outer shell, there is a gap between the outer shell and the box body, a partition frame is fixed on the inner wall of the outer shell, and the partition frame divides the gap into an upper gap and a lower gap;

[0007] The box body is provided with a filtering device. When the box body rotates, the box body and the outer shell move relative to each other, the filtering device passes through the upper gap, and the material in the upper gap passes through the filtering device and then enters the box body;

[0008] The stirring wheel is located in the box body, and the rotation direction of the stirring wheel is opposite to that of the box body.

[0009] Furthermore, a dredging component is provided on the outer shell of the lower gap, and during the rotation of the box body, the dredging component cleans the filter device.

[0010] Furthermore, the dredging component includes a positioning plate and bristles, the bristles are arranged on the positioning plate along the length direction of the mixing box, and the free ends of the bristles are in contact with the outer wall of the box.

[0011] Furthermore, the box is connected to a stirring main shaft, which is connected to a stirring auxiliary shaft. The stirring auxiliary shaft is inserted into the box from one end of the box. The stirring main shaft drives the box to rotate and the rotation directions of the stirring main shaft and the stirring auxiliary shaft are opposite.

[0012] Furthermore, the stirring wheel includes a plurality of stirring frames, and the plurality of stirring frames are distributed around the center line of the stirring auxiliary shaft.

[0013] Furthermore, the stirring frame includes a connecting rod and a stirring rod, the connecting rod is fixed on the auxiliary stirring shaft, and the stirring rod is fixed on the connecting rod and arranged along the radial direction of the auxiliary stirring shaft.

[0014] Furthermore, a quasi-long sleeve is sleeved on the auxiliary stirring shaft, and the quasi-long sleeve is connected to the outer shell through a folding rod frame. The folding rod frame includes four folding rod claws, each of which is fixed on the quasi-long sleeve at one end and fixed on the outer shell at the other end, and the four folding rod claws are arranged in a circular array around the auxiliary stirring shaft.

[0015] Furthermore, a material holding device is provided below the mixing box, and the material holding device comprises a material holding body, a cavity is provided inside the material holding body, and the material holding body is connected to an inlet pipe, and the material in the mixing box can enter the interior of the material holding body through the inlet pipe.

[0016] Compared with the prior art, the beneficial effect of the utility model is that the device can screen the material to be stirred by setting the structure of the stirring box. When the screened material enters the box, the box and the stirring wheel rotate in opposite directions, thereby stirring the material, but at the same time, the box and the outer shell also move relative to each other, so that the material in the upper gap can be ground and crushed to a certain extent, and relatively large agglomerated materials can be crushed. Therefore, the stirring and grinding in the device are carried out simultaneously, which can greatly improve the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall main structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the main cross-sectional structure of the mixing box of the utility model;

[0019] Figure 3 It is a schematic diagram of the support frame structure of the utility model;

[0020] Figure 4It is a schematic diagram of the side cross-sectional structure of the mixing box of the utility model;

[0021] Figure 5 It is a schematic diagram of the dredging component of the utility model;

[0022] Among them, 101—left support frame, 102—right support frame, 103—connecting base, 2—coupling, 301—support arm, 302—sleeve, 4—stirring main shaft, 501—outer shell, 502—feed port, 503—discharge port, 6—stirring auxiliary shaft, 7—folding rod frame, 8—long sleeve, 9—smooth rail, 1001—material holding body, 1002—inlet pipe, 1003—outlet pipe, 1004—movable cover, 11—box, 12—filter device, 1301—connecting rod, 1302—stirring rod, 14—partition frame, 15—dredging component, 1501—positioning plate, 1502—brush, 16—active drive motor, 17—auxiliary drive motor. 18—stirring frame. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the utility model, and are not used to limit the utility model. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various configurations. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the utility model. In the embodiments, the components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but only represents the selected embodiments of the present application.

[0024] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "back" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0025] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be an electrical connection; it can be a hydraulic oil circuit connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0026] See also Figures 1 to 5 As shown, the utility model is a raw material mixing device for making a carbon brush, comprising a support frame, a stirring box, a stirring main shaft 4, a stirring auxiliary shaft 6, a stirring wheel, a folding rod frame 7, a long sleeve 8, a support device and a material holding device. The stirring box is connected to the support frame, the stirring wheel is located inside the stirring box, and the stirring main shaft 4 is connected to the stirring box. When the stirring main shaft rotates, the material inside the stirring box can roll to achieve material mixing, and the material holding device is located below the stirring box. The stirred and mixed material can be discharged from the stirring box and collected by the material holding device.

[0027] Among them, the mixing box specifically includes an outer shell 501 and a box 11, the box 11 is connected to the mixing spindle 44, the mixing spindle 4 is connected to an active driving motor 16, and the active driving motor 16 can drive the box 11 to rotate through the mixing spindle 4 when working, the box 11 is located inside the outer shell 501, and a feed port and a discharge port are arranged on the outer shell 501, and the horizontal height of the feed port is greater than the horizontal height of the discharge port. After the material enters the outer shell from the feed port 502, it can be discharged from the discharge port 503, but there is a gap between the box 11 and the outer shell 501, and a partition frame 14 is arranged on the inner wall of the outer shell 501, and the partition frame 14 divides the gap between the box 11 and the outer shell 501 into an upper gap and a lower gap, and the material entering the outer shell from the feed port 502 will remain in the upper gap, and a rectangular notch extending along its long axis direction is arranged on the box 11, and the rectangular notches are distributed in a circular array around the central axis of the box 11, and in each A filtering device 12 is arranged in each rectangular gap. When the box body 11 rotates, the unit rectangular gap will move from the upper gap to the lower gap. During this process, the small particle material in the upper gap will pass through the filtering device 12 and enter the box body 11, and then be discharged from the straight box body 11 through the lower discharge port 503. The large particle material or the agglomerated material that does not meet the requirements will remain in the upper gap. Since the box body 11 is in a rotating motion state, there is friction between the material and the box body 11 at all times, so that the material in the upper gap can be ground to a certain extent, and the ground small particle material enters the box body 11 again. At this time, through the two processes of grinding and filtering, the particle size of the raw material entering the box body 11 is uniform, thereby reducing the difficulty of the raw material in the subsequent stirring and mixing process, making it easy to stir and mix the raw material evenly during the stirring and mixing process, improving the efficiency of the stirring and mixing process, and obtaining a more uniform mixed material.

[0028] A stirring wheel is arranged in the box body 11, and the stirring wheel is installed on the stirring auxiliary shaft 6. The stirring auxiliary shaft 6 is arranged coaxially with the stirring main shaft 4 and is inserted into the box body from one end of the box body. The stirring auxiliary shaft 6 is connected to the support frame. The stirring auxiliary shaft 6 is connected to the auxiliary driving motor 17. The auxiliary driving motor 17 drives the stirring wheel to rotate through the stirring auxiliary shaft 6. However, the rotation directions of the stirring auxiliary shaft 6 and the stirring main shaft 4 are opposite. Since the box body 11 is in a rotatable state, the stirring wheel and the box body 11 move relative to each other. After the small particle material enters the inside of the box body 11, it can be stirred and mixed inside the box body 11, and finally the stirred and mixed material is discharged into the gap directly below.

[0029] The stirring wheel includes a plurality of stirring frames 18, and the plurality of stirring frames are arranged in an array around the stirring auxiliary shaft 6. Each stirring frame includes a connecting rod 1301 and a plurality of stirring rods 1302. The connecting rod 1301 connects the stirring rod 1302 to the stirring main shaft 4. The connecting rod 1301 may be cylindrical or in other shapes. The stirring rod 1302 is configured as a wavy long rod. The stirring rod 1302 extends along the length direction of the stirring auxiliary shaft 6. The plurality of stirring rods 1302 in each stirring frame are arranged along the radial direction of the stirring auxiliary shaft 6, and the diameters of the plurality of stirring rods 1302 are different. When the stirring frame moves, the connecting rod 1301 and the stirring rod 1302 can stir the material in the stirring box. The stirred material can be discharged into the lower space gap under the action of centrifugal force, and then discharged from the discharge port 503 on the outer shell. At this time, the material holding device is operated to move so that the material holding device moves to the position directly below the stirring box so as to collect the obtained mixed material.

[0030] In order to ensure that the material in the box body 11 can be smoothly discharged into the lower gap, a dredging component is also provided in the lower gap. The dredging component is fixed on the inner wall of the outer shell. The dredging component includes a positioning plate 1501 and bristles 1502. The bristles 1502 are arranged on the positioning plate 1501 along the length direction of the mixing box body 11. The free ends of the bristles 1502 are in contact with the outer wall of the box body 11. During the rotation of the box body 11, the bristles 1502 will pass through the rectangular opening and clean the filter device in the rectangular opening to avoid clogging of the filter device.

[0031] The above-mentioned stirring main shaft 4 and stirring auxiliary shaft 6 are connected to the support frame, and the support frame includes a left support frame 101 and a right support frame 102. A connecting base 103 is arranged between the left support frame and the right support frame, and the stirring box is located between the left support frame and the right support frame; a placement cavity is arranged in the left support frame 101 and the right support frame 102, and an active drive motor 16 and an auxiliary drive motor 17 are respectively installed in the placement cavities of the two, and the output shafts of the active drive motor 16 and the auxiliary drive motor 17 are respectively connected to the stirring main shaft 4 and the stirring auxiliary shaft 6, and the coupling 2 can be used for docking when the specific connection is made;

[0032] In addition, in order to ensure the smooth rotation of the stirring main shaft 4 and the stirring auxiliary shaft 6, a support arm 301 is provided on the left support frame 101 and the right support frame 102, wherein a sleeve 302 is fixed to the upper end of the left support arm, and the right support arm is connected to the long sleeve 8, and the stirring main shaft 4 and the stirring auxiliary shaft 6 can pass through the sleeves on the corresponding sides;

[0033] Since the outer shell is in a stable state during operation and does not rotate, the outer shell is connected to a quasi-long sleeve 8 through a folding rod frame 7, and one end of the quasi-long sleeve 8 is fixed to the right frame 102. At this time, the auxiliary stirring shaft 6 also passes through the quasi-long sleeve 8, so that the outer shell and the box body 11 move relative to each other, and the box body 11 and the stirring wheel also move relative to each other, which can increase the mixing effect.

[0034] The folding rod frame 7 includes four folding rod claws, each of which is fixed on the long sleeve at one end and fixed on the outer shell at the other end, and the four folding rod claws are arranged in a circular array around the auxiliary stirring shaft 6;

[0035] In addition, in order to ensure the position stability between the left support frame 101 and the right support frame 102, two smooth rails 9 are connected between the two, and the two smooth rails 9 can form an inner support between the left support frame 101 and the right support frame 102, and the material holding device is located between the two smooth rails 9, and the material holding device can slide along the length direction of the smooth rails 9;

[0036] Specifically, the material holding device specifically includes a connecting piece and a material holding body 1001, an inlet pipe 1002, an outlet pipe 1003 and a movable cover 1004; two connecting pieces are symmetrically arranged on the two side walls of the material holding body 1001, and corresponding slide grooves are arranged on the smooth rail 9, and one end of the two connecting pieces is placed inside the slide grooves; so that the material holding body 1001 can slide in the length direction of the smooth rail 9; and the material holding body 1001 is a rectangular parallelepiped structure, and a cavity is arranged inside, and rectangular through holes are arranged on the upper and lower surfaces of the material holding body 1001, and the inlet pipe 1002 passes through the upper rectangular The through hole is connected to the inside of the material holding body 1001, and the outgoing pipe 1003 is connected to the inside of the material holding body 1001 through the rectangular through hole below. In order to isolate the incoming pipe and the outgoing pipe from the external space, movable covers 1004 are provided at the pipe openings of the incoming pipe 1002 and the outgoing pipe 1003; at the same time, in order to facilitate the cooperation between the incoming pipe 1002 and the discharge port 503 provided on the outer shell, the incoming pipe 1002 is provided as a retractable pipe; the incoming pipe 1002 is aligned with the discharge port 503, and the mixture enters the material holding body through the incoming pipe; thus completing the transfer and collection of the mixture.

[0037] When using this device, materials are added through the feed port 502 provided on the outer shell of the mixing box. The materials first enter the upper gap between the outer shell of the mixing box and the box body. The box body rotates to form a relative rotation between the box body and the outer shell, so that the materials in the gap are ground. The box body is provided with a ring array of filter devices 12. The ground and qualified materials enter the box body 11 through the filter devices 12. The stirring wheel is driven to rotate by the auxiliary stirring shaft 6 to mix and stir the materials. The filter devices 12 are cleaned by the dredging components provided on the outer shell 501 during the rotation of the box body 11, thereby avoiding blockage of the filter devices 12. Within a certain period of time, the materials in the mixing box body 11 are mixed and stirred to obtain a mixture, and the mixture is temporarily placed near the discharge port 503 on the outer shell 501 after passing through the filtering device 12; at this time, the material holding structure arranged below the mixing box can be pulled so that its inlet pipe 1002 corresponds to the discharge port 503 arranged on the outer shell of the mixing box, and the movable cover 1004 is opened to complete the transfer of the mixture, and the mixture is collected inside the material holding body 1001. When the next step of operation is required, it can be transmitted through the outlet channel arranged below the material holding body 1001; this arrangement prevents the material from being integrated into the external environment during the grinding, mixing and collection process in an open environment.

[0038] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

[0039] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the present invention. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A raw material mixing device for making a carbon brush, comprising a stirring box, a stirring wheel is arranged in the stirring box, characterized in that: The mixing box comprises an outer shell and a box body, the box body is located inside the outer shell, there is a gap between the outer shell and the box body, a partition frame is fixed on the inner wall of the outer shell, the partition frame divides the gap into an upper gap and a lower gap; The box body is provided with a filtering device. When the box body rotates, the box body and the outer shell move relative to each other, the filtering device passes through the upper gap, and the material in the upper gap passes through the filtering device and then enters the box body; The stirring wheel is located in the box body, and the rotation direction of the stirring wheel is opposite to that of the box body.

2. A carbon brush manufacturing raw material mixing device according to claim 1, characterized in that: A dredging component is arranged on the outer shell of the lower gap, and the dredging component cleans the filter device during the rotation of the box body.

3. A raw material mixing device for making a carbon brush according to claim 2, characterized in that: The dredging component comprises a positioning plate and bristles, the bristles are arranged on the positioning plate along the length direction of the stirring box body, and the free ends of the bristles are in contact with the outer wall of the box body.

4. A raw material mixing device for making a carbon brush according to claim 1, characterized in that: The box is connected with a stirring main shaft, which is connected with a stirring auxiliary shaft. The stirring auxiliary shaft is inserted into the box from one end of the box. The stirring main shaft drives the box to rotate and the stirring main shaft and the stirring auxiliary shaft rotate in opposite directions.

5. A raw material mixing device for making a carbon brush according to claim 1, characterized in that: The stirring wheel comprises a plurality of stirring frames, and the plurality of stirring frames are distributed around the center line of the stirring auxiliary shaft.

6. A raw material mixing device for making a carbon brush according to claim 5, characterized in that: The stirring frame comprises a connecting rod and a stirring rod, wherein the connecting rod is fixed on the auxiliary stirring shaft, and the stirring rod is fixed on the connecting rod and arranged along the radial direction of the auxiliary stirring shaft.

7. A raw material mixing device for making a carbon brush according to claim 6, characterized in that: The auxiliary stirring shaft is sleeved with a quasi-long sleeve, which is connected to the outer shell through a folding rod frame. The folding rod frame includes four folding rod claws, each of which is fixed on the quasi-long sleeve at one end and on the outer shell at the other end, and the four folding rod claws are arranged in a circular array around the auxiliary stirring shaft.

8. A raw material mixing device for making a carbon brush according to claim 1, characterized in that: A material holding device is arranged below the mixing box, and the material holding device comprises a material holding body, a cavity is arranged inside the material holding body, and the material holding body is connected to an inlet pipe, and the material in the mixing box can enter the inside of the material holding body through the inlet pipe.

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