Feeding device for commutator manufacturing

By incorporating cooling components and improving the sealing structure in the commutator manufacturing apparatus, the wear problem between the inner cylinder and the spiral blades was solved, extending the service life and improving the sealing performance and ease of use of the apparatus.

CN223920306UActive Publication Date: 2026-02-17RUIAN TIANRUI COMMUTATOR CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202520647288.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-08
Publication Date
2026-02-17
Estimated Expiration
2035-04-08

AI Technical Summary

Technical Problem

In existing commutator manufacturing equipment, the increased friction between the spiral blades and the inner cylinder due to bakelite powder leads to excessive heat, which can easily accelerate the wear of the inner cylinder and the spiral blades.

Method used

A cooling assembly is installed between the inner cylinder and the lifting cylinder, using cooling pipes and cooling water for heat exchange to reduce the temperature of the inner cylinder. Bolts and gaskets are used to improve the sealing performance, making it easy to disassemble and assemble the inner cylinder.

Benefits of technology

It effectively reduces the temperature of the inner cylinder, prevents wear, extends the service life of the inner cylinder and spiral blades, and improves the sealing performance and convenience of the device.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223920306U_ABST
    Figure CN223920306U_ABST
Patent Text Reader

Abstract

The utility model discloses a feeding device for commutator manufacturing, belongs to the technical field of commutators, solves the problems that more heat is easily generated and abrasion of an inner cylinder and a spiral blade is easily accelerated due to the fact that friction force between the spiral blade and the inner cylinder of an existing device is increased due to bakelite powder, and comprises a lifting cylinder, a temporary storage box and the inner cylinder. A temporary storage box is arranged on the left side of the lifting cylinder, an inner cylinder is movably sleeved with the lifting cylinder, the lifting cylinder comprises a cylinder body, the inner cylinder is movably sleeved with the cylinder body, a cooling assembly is arranged between the lifting cylinder and the inner cylinder, and cooling water in a water tank is conveyed into a water inlet pipe and a cooling pipe through a water pump; cooling water in the cooling pipe can exchange heat with the inner cylinder, the temperature of the inner cylinder can be reduced, the situation that the abrasion resistance of the inner cylinder is reduced due to overheating is avoided, the inner cylinder and the spiral blade can be protected, and the service life of the inner cylinder and the service life of the spiral blade can be prolonged.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of commutator technology, specifically to a feeding device for commutator manufacturing. Background Technology

[0002] The commutator is an important component of the armature of DC motors and AC commutator motors. During the production process, bakelite powder needs to be fed into the commutator press through a feeding device, and then the bakelite powder is pressed by the commutator press.

[0003] A search revealed that patent application number 202420181636.X discloses an automatic feeding device for commutator press wood powder, comprising a base, a lifting cylinder, an inner cylinder, a guide pipe, a temporary storage box, a fixing frame, a mounting plate, a cover plate, and a discharge pipe. The lifting cylinder is fixed to the upper side of the base, and the inner cylinder is fixed inside the lifting cylinder. The guide pipe is fixed to the lower outer side of the lifting cylinder, and the other end of the guide pipe is fixed to the lower end of the temporary storage box. The fixing frame is fixed to the outer side of the temporary storage box, and the other end of the fixing frame is fixed to the lifting cylinder. Several mounting plates are fixed to the upper outer side of the lifting cylinder, and a cover plate or a discharge pipe is fixed to the outer side of the mounting plate.

[0004] Although the automatic feeding device for bakelite powder in this commutator press can disassemble and replace the inner cylinder to improve its service life, the friction between the spiral blades and the inner cylinder of the automatic feeding device for bakelite powder in this commutator press is prone to generating more heat due to the increase of bakelite powder. As the temperature rises, the strength and hardness of the inner cylinder and the spiral blades will decrease, which will easily accelerate the wear of the inner cylinder and the spiral blades.

[0005] Therefore, we propose a feeding device for commutator manufacturing. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a feeding device for commutator manufacturing, which solves the problem that the increased friction between the spiral blades and the inner cylinder of existing devices due to bakelite powder easily generates more heat, thus accelerating the wear of the inner cylinder and spiral blades.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a feeding device for commutator manufacturing, comprising a lifting cylinder, a temporary storage box and an inner cylinder, wherein the temporary storage box is provided on the left side of the lifting cylinder, and the inner cylinder is movably fitted inside the lifting cylinder;

[0008] The lifting cylinder includes a cylinder body, an inner cylinder is movably fitted inside the cylinder body, and a cooling assembly is provided between the lifting cylinder and the inner cylinder;

[0009] The cooling assembly includes a cooling pipe, an outlet pipe, and an inlet pipe. The cooling pipe is fixedly fitted onto the inner wall of the cylinder. The outlet pipe and the inlet pipe are fixedly connected to the upper and lower ends of the cooling pipe, respectively. Both the outlet pipe and the inlet pipe extend to the outside of the lifting cylinder. The outlet pipe is connected to an external drainage system. The inlet pipe is fixedly connected to the output end of the water pump. The input end of the water pump is fixedly installed on the side wall of the water tank. The water tank is located on the right side of the temporary storage tank.

[0010] Preferably, the cooling pipe is threaded, and the inside of the cylinder and the outer wall of the inner cylinder are in contact with the surface of the cooling pipe. The cooling pipe is made of pure copper, which has good thermal conductivity.

[0011] Preferably, a connecting cover is fixedly installed on the top surface of the inner cylinder. The connecting cover is detachably installed on the top surface of the cylinder by bolts. A sealing gasket is adhered to the bottom surface of the connecting cover. The connecting cover is installed on the top surface of the cylinder by bolts to limit and fix the inner cylinder inside the cylinder and to facilitate the disassembly and assembly of the inner cylinder. The sealing gasket can increase the sealing between the cylinder and the connecting cover.

[0012] Preferably, a discharge pipe communicating with its inner cavity is fixedly installed on the top surface of the connecting cover. The end of the discharge pipe away from the connecting cover is connected to the input end of the commutator press. The bakelite powder inside the inner cylinder is transported to the inside of the commutator press through the discharge pipe.

[0013] Preferably, a motor is fixedly installed in the middle of the bottom surface of the cylinder, and a rotating rod is fixedly connected to the output end of the motor through the bottom surface of the cylinder. A spiral blade is fixedly fitted on the outer surface of the rotating rod. The motor can drive the rotating rod and the spiral blade to rotate, thereby conveying the bakelite powder inside the inner cylinder to the discharge pipe.

[0014] Preferably, the bottom surface of the temporary storage box is connected to a feed pipe via a flange, and a feed hole is provided at the bottom end of the side wall of the inner cylinder. The bottom end of the feed pipe penetrates the side wall of the cylinder and is movably fitted inside the feed hole. The interior of the temporary storage box is provided with a spiral conveying assembly for conveying bakelite powder into the feed pipe. The temporary storage box and the spiral conveying device are existing technologies and will not be described in detail here. The spiral conveying assembly can convey the bakelite powder in the temporary storage box into the feed pipe, and finally allow the bakelite powder to enter the interior of the inner cylinder.

[0015] This utility model provides a feeding device for commutator manufacturing. It has the following beneficial effects:

[0016] 1. The commutator manufacturing feeding device uses a water pump to deliver cooling water from the water tank to the inlet pipe and cooling pipe. The cooling water in the cooling pipe can exchange heat with the inner cylinder, which can reduce the temperature of the inner cylinder and thus prevent the wear resistance of the inner cylinder from decreasing due to overheating. This is beneficial for protecting the inner cylinder and the spiral blades, and can increase the service life of the inner cylinder and the spiral blades. It solves the problem in the existing device that the friction between the spiral blades and the inner cylinder is easily increased due to the increase of bakelite powder, which easily generates more heat and accelerates the wear of the inner cylinder and the spiral blades.

[0017] 2. The feeding device for manufacturing this commutator uses bolts to install the connecting cover on the top surface of the cylinder, which facilitates the disassembly and assembly of the inner cylinder. The sealing gasket can increase the sealing between the cylinder and the connecting cover. It is simple and convenient to use and has better sealing performance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the inner cylinder structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the cooling component structure of this utility model.

[0022] In the diagram: 1. Lifting cylinder; 11. Cylinder body; 12. Motor; 13. Rotating rod; 14. Spiral blade; 2. Temporary storage box; 3. Inner cylinder; 31. Connecting cover; 32. Discharge pipe; 33. Feed hole; 34. Feed pipe; 4. Cooling assembly; 41. Cooling pipe; 42. Water outlet pipe; 43. Water inlet pipe; 44. Water pump; 45. Water tank. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1: As Figure 1-4As shown: The system includes a lifting cylinder 1, a temporary storage box 2, and an inner cylinder 3. The temporary storage box 2 is located on the left side of the lifting cylinder 1. The inner cylinder 3 is movably fitted inside the lifting cylinder 1. The lifting cylinder 1 includes a cylinder body 11, and the inner cylinder 3 is movably fitted inside the cylinder body 11. A cooling assembly 4 is provided between the lifting cylinder 1 and the inner cylinder 3. The cooling assembly 4 includes a cooling pipe 41, a water outlet pipe 42, and a water inlet pipe 43. The cooling pipe 41 is fixedly fitted onto the inner wall of the cylinder body 11. The upper and lower ends of the cooling pipe 41 are respectively fixedly connected to the water outlet pipe 42 and the water inlet pipe 43. Both the water outlet pipe 42 and the water inlet pipe 43 extend to the outside of the lifting cylinder 1. The water outlet pipe 42 is connected to an external drainage system, and the water inlet pipe 43 is fixedly connected to a water pump 4. At the output end of 4, the input end of the water pump 44 is fixedly installed on the side wall of the water tank 45. The water tank 45 is located on the right side of the temporary storage box 2. The cooling pipe 41 is threaded. The inside of the cylinder 11 and the outer wall of the inner cylinder 3 are in contact with the surface of the cooling pipe 41. The cooling pipe 41 is made of pure copper. The water pump 44 delivers the cooling water in the water tank 45 to the water inlet pipe 43 and the cooling pipe 41. The cooling water in the cooling pipe 41 can exchange heat with the inner cylinder 3, which can reduce the temperature of the inner cylinder 3. This avoids the wear resistance of the inner cylinder 3 from being reduced due to overheating, which is beneficial to the protection of the inner cylinder 3 and the spiral blade 14, and can increase the service life of the inner cylinder 3 and the spiral blade 14.

[0025] Example 2: As Figure 1-3 As shown: A connecting cover 31 is fixedly installed on the top surface of the inner cylinder 3. The connecting cover 31 is detachably installed on the top surface of the cylinder 11 by bolts. A sealing gasket is adhered to the bottom surface of the connecting cover 31. The connecting cover 31 is installed on the top surface of the cylinder 11 by bolts, so as to facilitate the disassembly and assembly of the inner cylinder 3. The sealing gasket can increase the sealing between the cylinder 11 and the connecting cover 31. It is simple and convenient to use and has better sealing performance.

[0026] Example 3: As Figure 1-3 As shown: A discharge pipe 32 connected to the inner cavity of the connecting cover 31 is fixedly installed on the top surface of the connecting cover 31. The end of the discharge pipe 32 away from the connecting cover 31 is connected to the input end of the commutator press.

[0027] The bakelite powder inside the inner cylinder 3 is transported to the inside of the commutator press through the discharge pipe 32.

[0028] A motor 12 is fixedly installed in the middle of the bottom surface of the cylinder 11. The output end of the motor 12 passes through the bottom surface of the cylinder 11 and is fixedly connected to a rotating rod 13. A spiral blade 14 is fixedly fitted on the outer surface of the rotating rod 13.

[0029] The motor 12 drives the rotating rod 13 and the spiral blade 14 to rotate, thereby conveying the bakelite powder inside the inner cylinder 3 to the discharge pipe 32.

[0030] The bottom of the temporary storage box 2 is connected to the feed pipe 34 via a flange. The bottom end of the side wall of the inner cylinder 3 is provided with a feed hole 33. The bottom end of the feed pipe 34 penetrates the side wall of the cylinder 11 and is movably fitted inside the feed hole 33. The interior of the temporary storage box 2 is provided with a spiral conveying assembly for conveying bakelite powder into the feed pipe 34.

[0031] The temporary storage box 2 and the screw conveyor are existing technologies and will not be described in detail here. The screw conveyor assembly can transport the bakelite powder in the temporary storage box 2 to the feed pipe 34, and finally allow the bakelite powder to enter the interior of the inner cylinder 3.

[0032] The working principle and usage process of this utility model: When using this commutator manufacturing feeding device, bakelite powder is conveyed to the feed pipe 34 through the spiral conveyor in the temporary storage box 2. Then, the bakelite powder in the feed pipe 34 enters the interior of the inner cylinder 3. Then, the motor 12 is started to drive the rotating rod 13 and the spiral blade 14 to rotate, conveying the bakelite powder inside the inner cylinder 3 to the discharge pipe 32. Finally, the bakelite powder in the discharge pipe 32 enters the commutator pressing machine. During this process, the water pump 44 is started to convey the cooling water in the water tank 45 to the water inlet pipe 43 and the cooling pipe 41. Finally, the cooling water is discharged through the water outlet pipe 42. The cooling water in the cooling pipe 41 can exchange heat with the inner cylinder 3, thereby reducing the temperature of the inner cylinder 3.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A feeding device for commutator manufacturing, comprising a lifting cylinder (1), a temporary storage box (2) and an inner cylinder (3), the left side of the lifting cylinder (1) is provided with the temporary storage box (2), and the inner part of the lifting cylinder (1) movably sheaths the inner cylinder (3); characterized in that the lifting cylinder (1) comprises a cylinder body (11), the inner part of the cylinder body (11) movably sheaths the inner cylinder (3), and a cooling assembly (4) is arranged between the lifting cylinder (1) and the inner cylinder (3); the cooling assembly (4) comprises a cooling pipe (41), a water outlet pipe (42) and a water inlet pipe (43), the cooling pipe (41) is fixedly sheathed on the inner wall of the cylinder body (11), the upper and lower ends of the cooling pipe (41) are fixedly connected with the water outlet pipe (42) and the water inlet pipe (43) respectively, the water outlet pipe (42) and the water inlet pipe (43) both extend to the outside of the lifting cylinder (1), the water outlet pipe (42) is connected with an external drainage system in communication, the water inlet pipe (43) is fixedly connected with the output end of a water pump (44), the input end of the water pump (44) is fixedly installed on the side wall of a water tank (45), and the water tank (45) is arranged on the right side of the temporary storage box (2).

2. The feeding device for commutator manufacturing according to claim 1, characterized in that: The cooling pipe (41) is in a threaded shape, the inner part of the cylinder body (11) and the outer wall of the inner cylinder (3) are both in contact with the surface of the cooling pipe (41), and the cooling pipe (41) is made of pure copper.

3. The feeding device for commutator manufacturing according to claim 1, characterized in that: A connecting cover (31) is fixedly installed on the top surface of the inner cylinder (3), the connecting cover (31) is detachably installed on the top surface of the cylinder body (11) through bolts, and a sealing gasket is bonded to the bottom surface of the connecting cover (31).

4. The feeding device for commutator manufacturing according to claim 3, characterized in that: A discharge pipe (32) is fixedly installed on the top surface of the connecting cover (31) and communicates with the inner cavity of the connecting cover (31), and the end, away from the connecting cover (31), of the discharge pipe (32) communicates with the input end of a commutator pressing machine.

5. The feeding device for commutator manufacturing according to claim 1, characterized in that: A motor (12) is fixedly installed on the middle part of the bottom surface of the cylinder body (11), the output end of the motor (12) penetrates through the bottom surface of the cylinder body (11) and is fixedly connected with a rotating rod (13), and helical blades (14) are fixedly sheathed on the outer surface of the rotating rod (13).

6. The feeding device for commutator manufacturing according to claim 1, characterized in that: A feeding pipe (34) is connected to the bottom surface of the temporary storage box (2) through flanges, a feeding hole (33) is arranged at the bottom end of the side wall of the inner cylinder (3), the bottom end of the feeding pipe (34) penetrates through the side wall of the cylinder body (11) and movably sheaths the inner part of the feeding hole (33), and a spiral conveying assembly for conveying basswood powder into the inner part of the feeding pipe (34) is arranged in the inner part of the temporary storage box (2).

Citation Information

Patent Citations

  • Automatic wood powder feeding device for commutator pressing machine

    CN222041820U