Carbon brush sintering device

Abstract

The utility model relates to a carbon brush sintering device which comprises a circular operation platform, a plurality of placing frames and a heating device are arranged on the operation platform, and the placing frames are distributed in an annular array mode around the circle center of the operation platform. The heating device comprises a fixed telescopic device and a furnace cover, the furnace cover is connected with the fixed telescopic device, a furnace cover shell can rotate around the central axis of the fixed telescopic device, and the fixed telescopic device can control the furnace cover to move in the vertical direction; when the furnace cover moves to the position over the placing frame, the furnace cover can be arranged on the placing frame in a sleeving mode after moving downwards. The utility model has the beneficial effects that a plurality of placing racks can be heated in sequence by arranging one heating device, so that the heat utilization rate is relatively high.

Description

Technical Field

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

[0002] In order to improve the mechanical strength of carbon brushes, enhance their wear resistance, fix the geometric shape of carbon brushes and optimize their other properties, carbon brushes need to be sintered.

[0003] In the prior art, a new type of motor carbon brush sintering furnace has been announced, and its document number is: CN212962802U, which includes a fixed plate arranged on a base, a sintering furnace stacked in the fixed plate, a flue longitudinally arranged in the center of the fixed cover, a branch pipe arranged on the flue, and the branch pipe is arranged between the stacked sintering pots, a heating layer is arranged on the side wall of the fixed cover, an air intake pipe is arranged between the heating layer and the sintering pot, the air intake pipe is connected to an air pump arranged outside the fixed cover, an air inlet connected to the sintering pot is provided on the air intake pipe, an exhaust pipe and an exhaust pipe bracket are provided on the top of the fixed cover, the top of the flue is connected to the exhaust pipe, the bottom edge of the fixed cover is arranged in a card groove on the base, a liquid seal is provided in the card groove, and the outer side of the bottom of the fixed cover is fixedly connected to the base through a fixing buckle; a cavity is provided in the base, and a liquid inlet and a liquid outlet are provided on the base to control the flow of coolant into the base cavity to cool the device;

[0004] However, in the above scheme, when cooling the device after sintering the carbon brush, coolant needs to be introduced into the device to reduce the overall temperature of the device. When sintering the carbon brush again, the sintering furnace needs to be reheated, resulting in low heat utilization. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a carbon brush sintering device which can fully utilize heat.

[0006] To achieve the above-mentioned purpose, the technical solution of the utility model is: a carbon brush sintering device, comprising a circular operating platform, on which a plurality of placing racks and a heating device are provided, wherein the plurality of placing racks are distributed in a circular array around the center of the operating platform;

[0007] The heating device includes a fixed telescopic device and a furnace cover, the furnace cover and the fixed telescopic device are connected, the furnace cover shell can rotate around the central axis of the fixed telescopic device, and the fixed telescopic device can control the furnace cover to move in the vertical direction;

[0008] When the furnace cover moves to the top of the placement rack, the furnace cover moves downward and can be sleeved on the placement rack.

[0009] Furthermore, the operating platform is provided with a plurality of grooves, which are distributed in a circular array around the center of the operating platform, and the placement racks are placed in the grooves.

[0010] Furthermore, the operating platform is provided with a plurality of side openings, the side openings are communicated with the grooves at corresponding positions, and an oblique supporting plate is hinged at the side openings.

[0011] Furthermore, the placement rack includes a base adapted in the groove, a bracket is provided on the base, the bracket includes a central vertical tube and several groups of extension tubes, the several groups of extension tubes are arranged at equal intervals along the length direction of the central vertical tube, and the extension tubes are connected to the central vertical tube, and several holes are provided on the central vertical tube and the extension tubes.

[0012] Furthermore, a through hole is provided at the center of the base, which is connected to the central vertical pipe. An air pump is provided at the groove, and an air inlet pipe and an air outlet pipe are provided on the air pump. The air inlet pipe is connected to the central vertical pipe, and the air outlet pipe is connected to the exhaust gas treatment device.

[0013] Furthermore, the fixed telescopic device includes a hydraulic cylinder located at the center of the operating platform, the hydraulic cylinder is connected to a bottom lining plate, the bottom lining plate is connected to a sleeve, and the upper end of the sleeve is provided with a crossbeam.

[0014] Furthermore, a drive motor is provided in the sleeve, and the output shaft of the drive motor is connected to the center of the beam. Furnace covers are provided at both ends of the beam. The furnace covers are symmetrically distributed around the vertical center axis of the fixed telescopic device, and a resistance wire is provided in the interlayer of the furnace cover.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention sets up multiple placement racks and a heating device, and the placement racks are distributed in a circular array around the center of the operating platform. When the furnace cover moves to the top of the placement rack, the furnace cover moves downward and can be placed on the placement rack, thereby sintering the carbon brushes in the placement rack. When the carbon brushes in the placement rack are sintered, the furnace cover is placed above the next pair of placement racks, and the heat of the furnace cover can continue to be used to heat the placement rack. The present invention can heat multiple placement racks in sequence by setting up a heating device, and the heat utilization rate is relatively high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model before operation;

[0017] Figure 2 This is a schematic diagram of the main structure of the utility model when it is working;

[0018] Figure 3 This is a schematic diagram of the top view of the operating platform of the utility model;

[0019] Figure 4 This is a schematic diagram of the main structure of the storage rack of the utility model;

[0020] Figure 5 This is a schematic diagram of the top view of the structure of the bracket of the utility model;

[0021] Figure 6 This is a schematic diagram of the main cross-sectional structure of the furnace cover of the utility model;

[0022] Figure 7 This is a schematic diagram of the main structure of the pulley when the locking structure of the utility model is working;

[0023] In the figure, 1-operating platform, 2-groove, 3-furnace cover, 4-base, 5-pulley, 6-central vertical pipe, 7-extension pipe, 8-crucible, 9-extension part, 10-vacuum pump, 11-hole, 12-hydraulic cylinder, 13-bottom lining plate, 14-drive casing, 15-crossbeam, 16-vertical rod, 17-resistance wire, 18-insulation layer, 19-side opening, 20-inclined support plate, 21-frame, 22-roller, 23-clamping piece, 24-threaded rod. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention. In the embodiments, the components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different 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 for which protection is claimed, but merely represents selected embodiments of the present application.

[0025] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "front," "back," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections; electrical connections; hydraulic connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0027] See Figures 1 to 3 As shown, a carbon brush sintering device includes an operating platform 1, a groove 2 is provided on the operating platform 1, and there are several grooves 2. The grooves 2 are distributed in a circular array around the center of the operating platform 1. A placement rack is placed in the groove 2, and the carbon brush to be sintered is located in the placement rack. In this device, the number of grooves 2 is 4. A heating device is also provided on the operating platform 1. The heating device includes a furnace cover 3 and a fixed telescopic device. The furnace cover 3 is connected to the fixed telescopic device and can rotate around the vertical center axis of the fixed telescopic device. When the furnace cover 3 moves to the placement rack, the furnace cover 3 rotates around the vertical center axis of the fixed telescopic device. When the carbon brushes are directly above the rack, the furnace cover 3 is placed on the rack, and then the furnace cover heats the internal space area to sinter the carbon brushes in the rack. After the sintering of the carbon brushes is completed, the furnace cover 3 is removed from the rack that has completed sintering, and the furnace cover is placed on the next rack. At this time, the carbon brushes that have completed sintering are cooled in a natural environment. When the furnace cover completes sintering the carbon brushes on the next rack, the carbon brushes on the previous rack are basically cooled, and the rack can be removed, and then a new rack can be placed in the vacant groove 2.

[0028] See Figure 4 and Figure 5As shown, the placement rack includes a base 4 that fits into the groove 2, a pulley 5 is provided below the base 4, a locking structure is provided on the pulley 5, a bracket is provided on the base 4, and the bracket is made of alumina ceramics. The bracket includes a central vertical tube 6 and several groups of extension tubes 7. The central vertical tube 6 is a flat tube body, and several groups of extension tubes 7 are connected to the central vertical tube 6. The central vertical tube 6 and the extension tube 7 are both hollow and connected to the central vertical tube 6. The free ends of the extension tubes 7 are both closed, and the upper end of the central vertical tube 6 is closed. There are four extension tubes 7 on the same horizontal plane, and the four extension tubes 7 are perpendicular to the central vertical tube 6. The extension directions of the two extension tubes on the same side are the same and parallel to each other. Several groups of extension tubes 7 are distributed at equal intervals along the length direction of the central vertical tube 6, and each group of extension tubes 7 is provided with two crucibles 8, and the crucible 8 is located between the two extension tubes 7 on the same side. The carbon brush to be processed is located in the crucible 8. The crucible 8 is provided with an extension portion 9, and the extension portion 9 is placed on the extension tube 7. In order to increase the stability of the crucible 8, a protrusion is provided on the lower surface of the extension portion 9, and a pit is provided on the surface of the extension tube 7. When the extension portion 9 on the crucible 8 is placed on the extension tube 7, the protrusion fits into the pit. A vacuum pump 10 is provided at the center of each groove 2. The vacuum pump 10 works indirectly. A through hole is provided at the center of the base 4. An air inlet pipe and an air outlet pipe are provided on the vacuum pump 10. The air inlet pipe of the vacuum pump 10 is detachably connected to the through hole. The air outlet pipe of the vacuum pump 10 is connected to the exhaust gas treatment device through an exhaust pipe. Several vacuum pumps 10 in this device are connected to the same exhaust gas treatment device through an exhaust pipe. Several holes 11 are provided on the central vertical pipe 6 and the extension tube 7. The flue gas generated during the sintering process enters the bracket through the hole 11 and is discharged by the vacuum pump.

[0029] See Figure 1 and Figure 6 As shown, the above-mentioned fixed telescopic device includes a hydraulic cylinder 12 located at the center of the operating platform 1, and a bottom lining plate 13 is connected to the hydraulic cylinder 12. A sleeve 14 is provided on the bottom lining plate, and the upper end of the sleeve 14 is connected to the center of the beam. Specifically, a short sleeve inserted into the sleeve 14 is provided at the center of the beam, and a driving motor is provided in the sleeve 14. The output shaft of the driving motor is connected to the beam 15, and both ends of the beam 15 are connected to the furnace cover 3 through a vertical rod 16. The two furnace covers 3 are symmetrically distributed about the vertical center axis of the sleeve 14. A resistance wire 17 is provided in the interlayer of the furnace cover 3. The temperature of the furnace cover 3 is increased by heating the resistance wire 17, thereby heating the placement rack. The outer surface of the furnace cover 3 is provided with a thermal insulation layer 18. The setting of the thermal insulation layer 18 can slow down the heat loss in the furnace cover 3 to a certain extent. In the initial state, the furnace cover 3 is located above the placement rack.

[0030] See Figure 1 and Figure 3As shown, the placement rack that has been heated by the furnace hood 3 needs to be moved down from the operating platform 1, and a new placement rack to be heated needs to be placed in the groove 2. A side opening 19 is provided on the operating platform 1. The side opening 19 is located outside the groove 2 at the corresponding position and is connected to the groove 2. An inclined support plate 20 is hinged at the side opening 19. The free end of the inclined support plate 20 is placed on the ground. The setting of the inclined support plate 20 can facilitate the movement of the placement rack.

[0031] See Figure 7 As shown, the above-mentioned pulley 5 includes a frame 21 and a roller 22 connected to the frame. The frame 21 includes two clamping plates 23 parallel to each other. The locking assembly includes a threaded through hole set on the clamping plate 23. The threaded through hole can be screwed into the threaded rod 24. When the pulley 5 needs to be locked, the threaded rod 24 is screwed into the threaded through hole so that the free end of the threaded rod 24 is in close contact with the roller 22 to lock the pulley 5.

[0032] See Figure 1 and Figure 2 As shown, when using the above-mentioned carbon brush sintering device, the carbon brush to be sintered is first laid flat in the crucible 8, and the placement rack is slid into the groove 2. During this process, the placement rack passes through the inclined support plate 20 and the side opening 19 in sequence. After the placement rack is slid into the groove 2 at the corresponding position, the pulley 5 at the bottom of the placement rack near the side opening 19 is locked using the locking structure, and then the drive motor 14 is started to rotate the furnace cover 3 to the top of two of the placement racks, and then the hydraulic cylinder 12 is started to move the furnace cover 3 downward until the furnace cover The bottom end of the furnace hood 3 fits tightly against the base 4. Then, the resistance wire 17 in the interlayer of the furnace hood 3 starts to operate, and the furnace hood 3 begins to heat the racks, which then sinter the carbon brushes in the crucible 8. At regular intervals, the vacuum pump 10 is activated to exhaust the smoke from the racks to prevent it from adversely affecting the sintering of the carbon brushes. When the furnace hood has finished heating two of the racks, the hydraulic cylinder is activated again to move the furnace hood above the racks, and the drive motor is activated to heat the remaining two racks. This reciprocating operation continues.

[0033] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based primarily on the scope of protection of the claims.

Claims

1. A carbon brush sintering device, comprising a circular operating platform, characterized in that: The operating platform is provided with a plurality of placing racks and a heating device, and the plurality of placing racks are distributed in a circular array around the center of the operating platform; The heating device includes a fixed telescopic device and a furnace cover, the furnace cover and the fixed telescopic device are connected, the furnace cover can rotate around the central axis of the fixed telescopic device, and the fixed telescopic device can control the furnace cover to move in the vertical direction; When the furnace cover moves to the top of the placement rack, the furnace cover moves downward and can be sleeved on the placement rack.

2. A carbon brush sintering device according to claim 1, characterized in that: The operating platform is provided with a plurality of grooves, which are distributed in a circular array around the center of the operating platform, and the placement racks are placed in the grooves.

3. A carbon brush sintering device according to claim 2, characterized in that: The operating platform is provided with a plurality of side openings, the side openings are communicated with the grooves at corresponding positions, and an oblique supporting plate is hinged at the side openings.

4. A carbon brush sintering device according to claim 2, characterized in that: The placement rack includes a base adapted to be placed in the groove, and a bracket is provided on the base. The bracket includes a central vertical tube and several groups of extension tubes. The several groups of extension tubes are arranged at equal intervals along the length direction of the central vertical tube, and the extension tubes are connected to the central vertical tube. Several holes are provided on the central vertical tube and the extension tubes.

5. The carbon brush sintering device according to claim 4, characterized in that: A through hole is provided at the center of the base, which is connected to the central vertical pipe. An air pump is provided at the groove. An air inlet pipe and an air outlet pipe are provided on the air pump. The air inlet pipe is connected to the central vertical pipe, and the air outlet pipe is connected to the exhaust gas treatment device.

6. The carbon brush sintering device according to claim 1, characterized in that: The fixed telescopic device comprises a hydraulic cylinder located at the center of the operating platform, the hydraulic cylinder is connected to a bottom lining plate, the bottom lining plate is connected to a sleeve, and the upper end of the sleeve is provided with a crossbeam.

7. The carbon brush sintering device according to claim 6, characterized in that: A driving motor is arranged in the sleeve, and the output shaft of the driving motor is connected to the center of the beam. Furnace covers are arranged at both ends of the beam. The furnace covers are symmetrically distributed around the vertical center axis of the fixed telescopic device, and a resistance wire is arranged in the interlayer of the furnace cover.

Images