Motor carbon brush sintering device

Abstract

The utility model discloses a motor carbon brush sintering device which comprises a furnace body, a tray is arranged in the furnace body, a carbon brush is placed on the tray, an inner container is arranged in the furnace body, the tray is located in the inner container, a heating ring is arranged on the inner container, a supporting arm is arranged between the tray and the inner container, the tray is matched with a cover plate, and a containing opening is formed in the cover plate. A cover body is in butt joint with the containing opening, the carbon brush located on the tray is covered by the cover body, a suspension arm is connected between the cover plate and the inner container, and the suspension arm and the supporting arm are each provided with a telescopic structure. Compared with the prior art, the utility model has the beneficial effects that the inner container can rotate, so that the tray and the cover plate which are connected to the inner container can rotate, and the vertical arm between the inner container and the tray or the cover plate can stretch due to the gravity of the tray or the cover plate, so that the carbon brush can be positioned between the tray and the cover plate, and when the inner container rotates, the carbon brush can be turned over; therefore, the carbon brush is sintered in all directions, and the sintered carbon brush can achieve the best performance and use effect when being used again.

Description

Technical Field

[0001] The utility model relates to the technical field of motor carbon brush sintering devices, in particular to a motor carbon brush sintering device. Background Art

[0002] In electronic equipment, carbon brushes are commonly used electronic components. In the production process of carbon brushes, the sintering process of carbon brushes is indispensable. After sintering, the powdered compact can be transformed into a dense body, which will affect the performance and use effect of the carbon brushes.

[0003] The prior art discloses a smoke-proof carbon brush sintering device, document number: CN106839763A, which includes a furnace body, a furnace hood is arranged in the furnace body, and a plurality of crucibles with air holes at the bottom are arranged in the furnace hood. A ventilation pipe is connected to the crucible, and an inert gas is introduced into the ventilation pipe, so that part of the smoke and inert gas generated by the sintering of the carbon brush can move downward, and the other part is squeezed into the smoke exhaust channel, and then the gas is purified by a sedimentation box, and the inert gas enters the ventilation pipe again.

[0004] However, in the above scheme, only part of the surface of the carbon brush placed on the crucible is sintered, while the side of the carbon brush in contact with the crucible is not completely sintered, and the sintering time is long, which affects the sintering efficiency of the carbon brush. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a motor carbon brush sintering device which can sinter the carbon brush in all directions.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is a motor carbon brush sintering device, including a furnace body, a tray is arranged in the furnace body, the carbon brush is placed on the tray, a cylindrical inner tank is arranged in the furnace body, the tray is located in the inner tank, a heating ring is arranged on the inner tank, the heating ring can heat the furnace body, a support arm is arranged between the tray and the inner tank, the tray is matched with a cover plate, a receiving port is arranged on the cover plate, a cover body is connected to the receiving port, the carbon brush on the tray is covered by the cover body, a hanging arm is connected between the cover plate and the inner tank, the hanging arm and the support arm both have a retractable structure, the inner tank is connected to a driving motor, the driving motor controls the inner tank to flip in the furnace body, so that the tray and the cover plate flip and move in the inner tank.

[0007] Furthermore, the tray is a rectangular flat plate, and the length direction of the tray is the same as the length direction of the central axis of the inner container.

[0008] Furthermore, the tray comprises a fixed plate and a sliding plate, wherein the fixed plate is fixedly connected to the support arm, and when the tray is located above the support arm, the sliding plate is connected above the fixed plate.

[0009] Furthermore, the fixed plate is provided with two collars on the same plane, the collars are arranged perpendicular to the tray, and the sliding plate is provided with two L-shaped rods, and the collars can be sleeved on the corresponding L-shaped rods.

[0010] Furthermore, the sliding plate and the fixed plate are respectively provided with a positioning threaded hole and a limiting threaded hole, and a positioning bolt is provided in the positioning threaded hole. When the L-shaped rod is located in the collar, the bottom of the positioning bolt is located in the limiting threaded hole.

[0011] Furthermore, the heating coils are arranged along the length direction of the inner tank, and the distance between every two adjacent heating coils is equal.

[0012] Furthermore, the tray is provided with a socket and a blind hole, and a pin is fixed on the cover plate. When the pin passes through the socket and is inserted into the blind hole, the cover plate and the tray can be prevented from being misaligned and separated when the inner container rotates.

[0013] Compared with the prior art, the beneficial effect of the utility model is that the inner shell can be rotated, thereby causing the tray and cover plate connected to the inner shell to rotate, and the vertical arm between the inner shell and the tray or cover plate is stretched due to the gravity of the tray or cover plate, so that the carbon brush can be located between the tray and the cover plate. When the inner shell rotates, the carbon brush can be flipped over and sintered in all directions. After sintering, the carbon brush can achieve the best performance and use effect when used again. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall main structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the internal main cross-sectional structure of the inner container of the utility model;

[0016] Figure 3 This is a schematic diagram of the front cross-sectional structure of the tray of the utility model;

[0017] Figure 4 This is a left-side structural schematic diagram of a tray of the utility model;

[0018] Figure 5 This is a schematic diagram of the main structure of the cover plate of the utility model;

[0019] Figure 6 This is a schematic diagram of the top view structure of the cover plate of the utility model;

[0020] Among them, 1-furnace body, 2-tray, 3-inner tank, 4-heating ring, 5-cover, 6-hole, 7-column, 8-support arm, 9-fixed plate, 10-sliding plate, 11-ring, 12-L-shaped rod, 13-positioning threaded hole, 14-positioning bolt, 15-limiting threaded hole, 16-cover plate, 17-hood, 18-hanging arm, 19-jack, 20-blind hole, 21-pin rod. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] See also Figures 1 to 6 As shown, a motor carbon brush sintering device includes a furnace body 1, a tray 2 is arranged in the furnace body 1, the tray 2 is located in the furnace body 1, the carbon brush is placed on the tray 2, an inner tank 3 is also arranged in the furnace body 1, the tray 2 is located in the inner tank 3, a heating ring 4 is arranged on the inner tank 3, the furnace body 1 can be heated by the heating ring 4, the inner tank 3 rotates during heating, so that the carbon brush is heated more evenly, a cover 5 is arranged at the port of the furnace body 1, the cover 5 is hinged on the furnace body 1, when the cover 5 is buckled at the port of the furnace body 1, the furnace body 1 is in a closed state, because a certain amount of smoke is generated during the sintering process of the carbon brush, a gas purification device is connected to the inner tank 3 to reduce pollution.

[0023] In order to facilitate heating of the internal space of the furnace body 1, the inner liner 3 is cylindrical, and a motor is connected to the inner liner 3. The motor is located at one end of the cylinder of the inner liner 3, and the motor is connected to the central axis of the cylinder. At the same time, the motor is located at the center of the furnace body 1. The motor controls the inner liner 3 to rotate in the furnace body 1. A plurality of heating coils 4 are arranged on the inner liner 3. The heating coils 4 are annular, and are arranged along the length direction of the inner liner 3. The spacing between every two adjacent heating coils 4 is equal. At the same time, the heating coils 4 can be tilted, that is, there is an angle of 20-30° between the central axis of the heating coil 4 and the central axis of the inner liner 3. At this time, since the inner liner 3 rotates in the furnace body 1, if a heating coil 4 located on the inner liner 3 fails, it will not have a great impact on the processing result of the carbon brush placed on the inner liner 3.

[0024] When the inner pot 3 rotates in the furnace body 1, the heating coil 4 rotates with the inner pot 3. A plurality of holes 6 are provided on the heating coil 4. The holes 6 are arranged in a circular array on the heating coil 4. Vertical columns 7 are arranged in the holes 6. One end of the vertical columns 7 is fixed on the inner pot 3, that is, the vertical columns 7 are arranged in a circular array on the inner wall of the inner pot 3. Therefore, the heating coil 4 is fixedly connected to the inner pot 3 through the vertical columns 7. When the inner pot 3 rotates, the heating coil 4 rotates together.

[0025] In order to make the carbon brushes to be sintered in the inner pot 3 be sintered in all directions, the tray 2 is a rectangular flat plate structure, and a plurality of regularly arranged hollows are provided on the tray 2. The heat emitted by the heating coil 4 can sinter the carbon brushes on the tray 2 through the plurality of hollows. The length direction of the tray 2 is the same as the length direction of the central axis of the inner pot 3. The tray 2 is located in the inner area of ​​the inner pot 3. A support arm 8 is provided on the lower surface of the tray 2. There are four support arms 8. One end of the support arm 8 is connected to the tray 2, and the other end is connected to the inner pot 3. Two of the support arms 8 are located in the gaps between the two adjacent heating coils 4 on the outermost side of the inner pot 3, and the other two support arms 8 are located in the gaps between the two adjacent heating coils 4 on the innermost side of the inner pot 3. The support arm 8 is a retractable slide rod composed of a plurality of sleeves. When the tray 2 is below the central axis of the inner pot 3, that is, when the tray 2 is in a lower position, the support arm 8 is in a contracted state, and when the inner pot 3 rotates to the point where the support arm 8 is located above the tray 2, the support arm 8 is in an extended state.

[0026] In addition, the tray 2 includes a fixed plate 9 and a sliding plate 10. The fixed plate 9 is fixedly connected to one end of the support arm 8. When the tray 2 is in a lower position (that is, when the tray 2 is located above the support arm 8), the sliding plate 10 is located above the fixed plate 9, and the sliding plate 10 is connected to the fixed plate 9. A ring 11 is provided on the fixed plate 9. There are two rings 11. The two rings 11 are on the same plane, and the rings 11 are located on the fixed plate 9 at a position biased toward the inner side of the inner liner 3. The rings 11 are arranged perpendicular to the tray 2. An L-shaped rod 12 is provided on the sliding plate 10. There are also two L-shaped rods 12. The rings 11 can be sleeved on the corresponding L-shaped rods 12. A positioning threaded hole 13 is also provided on the sliding plate 10. The positioning threaded hole 13 is located on the fixing plate 9 at a position biased toward the outside of the inner liner 3. A corresponding positioning bolt 14 is provided in the positioning threaded hole 13. A limiting threaded hole 15 is provided on the fixing plate 9. When the L-shaped rod 12 is located in the collar 11, the positioning bolt 14 is screwed so that the bottom of the positioning bolt 14 is located in the limiting threaded hole 15, so that the sliding plate 10 can be connected to the fixing plate 9. When in use, since the carbon brush to be sintered needs to be placed on the sliding plate 10 and then the sliding plate 10 is connected to the fixing plate 9, the sliding plate 10 is made of a material that is resistant to high temperature and has low thermal conductivity.

[0027] In order to facilitate the all-round sintering of the carbon brush, that is, to sinter the side of the carbon brush in contact with the tray 2, the carbon brush needs to be turned over, and a cover plate 16 is arranged above the tray 2, and the cover plate 16 is located inside the inner tank 3. A receiving opening is arranged on the cover plate 16. When the cover plate 16 falls on the tray, the carbon brush on the tray will pass through the receiving opening. A cover body 17 is docked at the receiving opening on the cover plate 16. At this time, the cover body 17 covers the carbon brush. The cover body 17 is a hollow structure. The heat emitted by the heating coil 4 can be transferred to the carbon brush through the cover body 17. A hanging arm 18 is arranged and connected between the cover plate 16 and the inner tank 3. The hanging arm 18 is also a retractable structure. When the tray 2 is located at a position slightly below the inner plate of the inner tank 3, the support arm 8 is located below the tray 2. At this time, the cover plate 16 is located above the tray 2 The arm 18 is located above the cover plate 16, and the arm 18 is in an extended state at this time. The carbon brush is covered by the cover body 17, but there is a certain gap between the carbon brush and the corresponding cover body 17, and the cover plate 16 is in contact with the tray 2. When the inner tank 3 rotates 180° in the furnace body 1, the cover plate 16 is located above the arm 18, and the tray 8 is located above the cover plate 16. The arm 18 is in an extended state and located above the tray 2, and the arm 18 is in a retracted state. At this time, the horizontal heights of the tray 2 and the cover plate 16 change alternately, that is, when the inner tank 3 is turned over, the tray 2 and the cover plate 16 can be controlled to turn over and move in the inner tank 3, and the carbon brush falls on the cover body 17, which is equivalent to turning over the carbon brush, thereby completing the turning of the carbon brush. Such repeated rotation can sinter the carbon brush in all directions.

[0028] In order to ensure a stable connection between the cover plate 16 and the tray 2, a socket 19 can be set on the sliding plate 10 on the tray 2, and the socket 19 passes through the sliding plate 10. At the same time, a blind hole 20 is set on the fixed plate 9, and the blind hole 20 corresponds to the socket 19. A pin rod 21 is fixed on the cover plate 2. When the cover plate 2 covers the sliding plate 10, the pin rod 21 passes through the corresponding socket 19, and the end of the pin rod 21 is inserted into the blind hole 20. At this time, when the inner liner 3 rotates, the cover plate 16 and the tray 2 can be prevented from being misaligned and separated.

[0029] 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.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A motor carbon brush sintering device, comprising a furnace body, a tray is arranged in the furnace body, and the carbon brush is placed on the tray, characterized in that: The furnace body is provided with a cylindrical inner container, the tray is located in the inner container, and a heating ring is provided on the inner container, and the heating ring can heat the furnace body; A support arm is provided between the tray and the inner container, the tray is matched with a cover plate, a receiving opening is provided on the cover plate, a cover body is connected to the receiving opening, and the carbon brush on the tray is covered by the cover body; A suspension arm is connected between the cover plate and the inner tank, and both the suspension arm and the support arm have a retractable structure; The inner container is connected to a driving motor, and the driving motor controls the inner container to flip in the furnace body, so that the tray and the cover plate flip and move in the inner container.

2. The motor carbon brush sintering device according to claim 1, characterized in that: The tray is a rectangular flat plate, and the length direction of the tray is the same as the length direction of the central axis of the inner container.

3. The motor carbon brush sintering device according to claim 1, characterized in that: The tray comprises a fixed plate and a sliding plate, wherein the fixed plate is fixedly connected to the support arm, and when the tray is located above the support arm, the sliding plate is connected above the fixed plate.

4. The motor carbon brush sintering device according to claim 3, characterized in that: The fixed plate is provided with two collars on the same plane, the collars are arranged perpendicular to the tray, and the sliding plate is provided with two L-shaped rods, and the collars can be sleeved on the corresponding L-shaped rods.

5. The motor carbon brush sintering device according to claim 4, characterized in that: The sliding plate and the fixed plate are respectively provided with a positioning threaded hole and a limiting threaded hole, and a positioning bolt is arranged in the positioning threaded hole. When the L-shaped rod is located in the collar, the bottom of the positioning bolt is located in the limiting threaded hole.

6. The motor carbon brush sintering device according to claim 1, characterized in that: The heating coils are arranged along the length direction of the inner container, and the distance between every two adjacent heating coils is equal.

7. A motor carbon brush sintering device according to claim 1 or 6, characterized in that: The heating ring is arranged tilted.

8. The motor carbon brush sintering device according to claim 1, characterized in that: The tray is provided with a plug hole and a blind hole, and a pin rod is fixed on the cover plate. When the pin rod passes through the plug hole and is inserted into the blind hole, the cover plate and the tray can be prevented from being misaligned and separated when the inner container rotates.

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