Brake mechanism

Abstract

The utility model relates to a brake mechanism which comprises a heat dissipation structure installed in a charging pile and an outer cylinder, a centrifugal cylinder is arranged in the outer cylinder, connecting necks are integrally formed at the two ends of the centrifugal cylinder, and the ends, away from the centrifugal cylinder, of the connecting necks are rotationally connected with the inner wall of the outer cylinder through connecting pieces. A plurality of inner mounting seats are fixedly connected to the peripheral side of the middle section of the connecting neck, after materials in the centrifugal barrel are separated, the controller can be started to electrify the electromagnet, and at the moment, the electromagnet can generate a magnetic field force effect; the permanent magnet plate is arranged between the permanent magnet plate and the electromagnet, mutual attraction magnetic field force action is formed between the permanent magnet plate and the electromagnet, damping is formed through the magnetic field force action, the rotating speed of the centrifugal barrel is reduced till the centrifugal barrel completely stops rotating, braking work of the centrifugal barrel is achieved, the electromagnet does not make contact with the permanent magnet plate in the braking process, high temperature and noise are avoided, and use by a user is facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of centrifuge technology, and specifically relates to a braking mechanism. Background Technology

[0002] Centrifuges are machines that use centrifugal force to separate components in a mixture of liquids and solid particles or liquids and liquids. They are mainly used to separate solid particles from liquids in suspensions or to separate two immiscible liquids with different densities in emulsions. They can also be used to remove liquids from wet solids. Special high-speed tubular centrifuges can also separate gas mixtures of different densities. Taking advantage of the different settling velocities of solid particles of different densities or sizes in liquids, some sedimentation centrifuges can also classify solid particles according to density or particle size.

[0003] After separating the mixture, the centrifuge needs to brake the centrifuge drum to quickly remove the material. The existing method generally uses friction braking to brake the centrifuge drum. During the braking process, not only will a lot of heat be generated due to friction, but it will also be noisy, which makes it very inconvenient for users. Utility Model Content

[0004] The purpose of this invention is to provide a braking mechanism with a simple structure and reasonable design in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A braking mechanism includes an outer cylinder, inside which a centrifuge cylinder is disposed. Both ends of the centrifuge cylinder are integrally formed with connecting necks. The end of the connecting neck away from the centrifuge cylinder is rotatably connected to the inner wall of the outer cylinder through a connecting member. A plurality of inner mounting seats are fixedly connected to the periphery of the middle section of the connecting neck. The plurality of inner mounting seats are distributed in a ring around the outer wall of the connecting neck. A first inclined surface is provided on the side of the inner mounting seat away from the connecting neck. A fixing hole is opened on the first inclined surface. A permanent magnet plate is provided on the outer side of the first inclined surface and fixed to the inner mounting seat through the fixing hole.

[0007] The outer cylinder has an outer mounting base fixedly installed on its inner wall, which corresponds to each of the inner mounting bases. The outer mounting base has a second inclined surface with the same inclination angle as the inner mounting base on its side near the inner mounting base. A slot is provided on the second inclined surface. An electromagnet is provided on the side of the second inclined surface near the first inclined surface, which is engaged and fixed to the outer mounting base through the slot. A controller is fixedly installed on the outer surface of the outer cylinder, and the multiple electromagnets are electrically connected to the controller.

[0008] As a further optimization of this utility model, both the outer cylinder and the centrifuge cylinder are cylindrical structures, and a gap is left between the inner wall of the outer cylinder and the outer surface of the centrifuge cylinder.

[0009] As a further optimization of this utility model, a plurality of through holes are provided on the side wall of the middle section of the centrifuge cylinder, and the plurality of through holes penetrate the side wall of the centrifuge cylinder and communicate with the inner cavity of the outer cylinder.

[0010] As a further optimization of this utility model, the connecting member includes a bearing disposed between the outer cylinder and the connecting neck, the inner ring of the bearing being sleeved on the connecting neck and fixed to the connecting neck, and the outer ring of the bearing being fixedly connected to the inner wall of the end of the outer cylinder.

[0011] As a further optimization of this utility model, one of the connecting necks is equipped with a feed pipe communicating with the inside of the centrifuge cylinder, and the other connecting neck is equipped with a drive shaft whose end is fixedly connected to the centrifuge cylinder. The end of the drive shaft away from the centrifuge cylinder is fixed to the output end of an external motor.

[0012] As a further optimization of this utility model, the permanent magnet plate has opposite magnetism to the electromagnet on the side adjacent to it.

[0013] The beneficial effects of this utility model are as follows: After the materials in the centrifuge drum are separated, the controller can be activated to energize the electromagnet. At this time, the electromagnet will generate a magnetic force. Since the permanent magnet plate and the electromagnet on the adjacent side have opposite magnetism, when the permanent magnet plate rotates to be aligned with the electromagnet, a magnetic force that attracts each other will be formed between them. This magnetic force will form damping and reduce the speed of the centrifuge drum until the centrifuge drum stops rotating completely, so as to realize the braking work of the centrifuge drum. During the braking process, the electromagnet and the permanent magnet plate do not come into contact, so no high temperature or noise is generated, which is convenient for users. Attached Figure Description

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

[0015] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the installation structure of the centrifuge cylinder, bearing, inner mounting base and permanent magnet plate of this utility model;

[0017] Figure 4 This is a schematic diagram showing the installation positions of the permanent magnet and electromagnet of this utility model.

[0018] In the diagram: 1. Outer cylinder; 2. Centrifuge cylinder; 3. Through hole; 4. Connecting neck; 5. Bearing; 6. Feed pipe; 7. Drive shaft; 8. Inner mounting base; 9. Fixing hole; 10. Permanent magnet plate; 11. Outer mounting base; 12. Slot; 13. Electromagnet; 14. Controller. Detailed Implementation

[0019] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0020] Example

[0021] like Figure 1 - Figure 4 As shown, a braking mechanism includes an outer cylinder 1, and a centrifuge cylinder 2 is disposed inside the outer cylinder 1. Both the outer cylinder 1 and the centrifuge cylinder 2 are cylindrical structures. A gap is left between the inner wall of the outer cylinder 1 and the outer surface of the centrifuge cylinder 2 to avoid friction between the centrifuge cylinder 2 and the inner wall of the outer cylinder 1 when the centrifuge cylinder 2 rotates at high speed, thereby preventing the centrifuge cylinder 2 from being damaged due to friction with the outer cylinder 1.

[0022] Multiple through holes 3 are provided on the side wall of the middle section of the centrifuge cylinder 2. All through holes 3 penetrate the side wall of the centrifuge cylinder 2 and communicate with the inner cavity of the outer cylinder 1, and are used to separate the mixture inside the centrifuge cylinder 2 through the through holes 3.

[0023] Both ends of the centrifuge cylinder 2 are integrally formed with connecting necks 4. The end of the connecting neck 4 away from the centrifuge cylinder 2 is rotatably connected to the inner wall of the outer cylinder 1 through a connecting member. The connecting member includes a bearing 5 disposed between the outer cylinder 1 and the connecting neck 4. The inner ring of the bearing 5 is sleeved on the connecting neck 4 and fixed to the connecting neck 4. The outer ring of the bearing 5 is fixedly connected to the inner wall of the end of the outer cylinder 1. The bearing 5 can reduce the frictional resistance when the connecting neck 4 rotates.

[0024] One of the connecting necks 4 is equipped with a feed pipe 6 that communicates with the inside of the centrifuge cylinder 2. The other connecting neck 4 is equipped with a drive shaft 7 that is fixedly connected to the centrifuge cylinder 2 at one end. The end of the drive shaft 7 away from the centrifuge cylinder 2 is fixed to the output end of an external motor. The feed pipe 6 is provided so that the user can pour the mixture to be separated into the centrifuge cylinder 2 through the feed pipe 6 for separation. The drive shaft 7 is provided for connection to the output end of an external motor. The external motor drives the drive shaft 7 to rotate, thereby driving the centrifuge cylinder 2 fixed to the drive shaft 7 to rotate. The mixture is separated by centrifugal force in conjunction with the through hole 3 opened on the side wall of the centrifuge cylinder 2.

[0025] Multiple inner mounting seats 8 are fixedly connected to the middle section of the connecting neck 4. The multiple inner mounting seats 8 are distributed in a ring around the outer wall of the connecting neck 4. A first inclined surface is provided on the side of the inner mounting seat 8 away from the connecting neck 4. A fixing hole 9 is provided on the first inclined surface. A permanent magnet plate 10 is provided on the outer side of the first inclined surface and fixed to the inner mounting seat 8 through the fixing hole 9. The multiple permanent magnet plates 10 are all the same size and mass to avoid uneven weight distribution around the centrifuge cylinder 2, which would affect the rotation of the centrifuge cylinder 2.

[0026] An outer mounting base 11, corresponding one-to-one with multiple inner mounting bases 8, is fixedly installed on the inner wall of the outer cylinder 1. A second inclined surface, with the same inclination angle as the inner mounting base 8, is provided on the side of the outer mounting base 11 closest to the inner mounting base 8. A slot 12 is provided on the second inclined surface. An electromagnet 13, which is engaged and fixed to the outer mounting base 11 via the slot 12, is provided on the side of the second inclined surface closest to the first inclined surface. The permanent magnet plate 10 has opposite magnetic properties to the side adjacent to the electromagnet 13. A controller 14 is fixedly installed on the outer surface of the outer cylinder 1, and all electromagnets 13 are electrically connected to the controller 14. Next, after the controller 14 is started and the electromagnet 13 is energized, the electromagnet 13 will generate a magnetic force. Since the magnetism of the permanent magnet plate 10 and the electromagnet 13 on the adjacent side is opposite, when the permanent magnet plate 10 fixedly installed on the centrifuge cylinder 2 through the inner mounting base 8 rotates to align with the electromagnet 13 installed on the inner wall of the outer cylinder 1, a magnetic force of mutual attraction will be formed between them. The magnetic force will form damping and reduce the speed of the centrifuge cylinder 2 until the centrifuge cylinder 2 stops rotating completely, so as to realize the braking work of the centrifuge cylinder 2.

[0027] It should be noted that, in use, this braking mechanism involves pouring the mixture into the centrifuge drum 2 through the feed pipe 6, then starting the external motor to drive the drive shaft 7 to rotate the centrifuge drum 2 at high speed inside the outer drum 1. The centrifugal force generated by the rotation of the centrifuge drum 2, combined with the through holes 3 on the side wall of the centrifuge drum 2, separates the mixture. After the materials are separated, the user can start the controller 14 to energize the electromagnet 13. At this time, the electromagnet 13 will generate a magnetic force. Since the permanent magnet plate 10 and the adjacent side of the electromagnet 13 have opposite magnetism, when the permanent magnet plate 10, which is fixedly installed on the centrifuge drum 2 by the inner mounting base 8, rotates to align with the electromagnet 13 installed on the inner wall of the outer drum 1, a magnetic force of mutual attraction will be formed between them. This magnetic force forms damping, reducing the speed of the centrifuge drum 2 until the centrifuge drum 2 stops rotating completely, thus achieving the braking operation of the centrifuge drum 2. During the braking process, since the electromagnet 13 and the permanent magnet plate 10 do not contact each other, no high temperature or noise will be generated, making it convenient for users.

[0028] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A braking mechanism, comprising an outer cylinder (1), wherein a centrifuge cylinder (2) is disposed inside the outer cylinder (1), and both ends of the centrifuge cylinder (2) are integrally formed with connecting necks (4), wherein the end of the connecting neck (4) away from the centrifuge cylinder (2) is rotatably connected to the inner wall of the outer cylinder (1) through a connecting member, characterized in that: Multiple inner mounting seats (8) are fixedly connected to the periphery of the middle section of the connecting neck (4). The multiple inner mounting seats (8) are arranged in a ring around the outer wall of the connecting neck (4). A first inclined surface is provided on the side of the inner mounting seat (8) away from the connecting neck (4). A fixing hole (9) is provided on the first inclined surface. A permanent magnet plate (10) is provided on the outer side of the first inclined surface and fixed to the inner mounting seat (8) through the fixing hole (9). The inner wall of the outer cylinder (1) is fixedly installed with an outer mounting seat (11) corresponding to each of the inner mounting seats (8). The outer mounting seat (11) is provided with a second inclined surface with the same inclination angle as the inner mounting seat (8) on the side near the inner mounting seat (8). A slot (12) is provided on the second inclined surface. An electromagnet (13) is provided on the side of the second inclined surface near the first inclined surface and is fixedly engaged with the outer mounting seat (11) through the slot (12). A controller (14) is fixedly installed on the outer surface of the outer cylinder (1). The multiple electromagnets (13) are all electrically connected to the controller (14).

2. The braking mechanism according to claim 1, characterized in that: Both the outer cylinder (1) and the centrifuge cylinder (2) are cylindrical structures, and a gap is left between the inner wall of the outer cylinder (1) and the outer surface of the centrifuge cylinder (2).

3. The braking mechanism according to claim 1, characterized in that: Multiple through holes (3) are provided on the side wall of the middle section of the centrifuge tube (2), and the multiple through holes (3) penetrate the side wall of the centrifuge tube (2) and communicate with the inner cavity of the outer tube (1).

4. A braking mechanism according to claim 1, characterized in that: The connector includes a bearing (5) disposed between the outer cylinder (1) and the connecting neck (4). The inner ring of the bearing (5) is sleeved on the connecting neck (4) and fixed to the connecting neck (4). The outer ring of the bearing (5) is fixedly connected to the inner wall of the end of the outer cylinder (1).

5. A braking mechanism according to claim 1, characterized in that: One of the connecting necks (4) is equipped with a feed pipe (6) that communicates with the inside of the centrifuge cylinder (2), and the other connecting neck (4) is equipped with a drive shaft (7) that is fixedly connected to the centrifuge cylinder (2) at one end. The end of the drive shaft (7) away from the centrifuge cylinder (2) is fixed to the output end of an external motor.

6. A braking mechanism according to claim 1, characterized in that: The permanent magnet plate (10) has opposite magnetism to the electromagnet (13) on the adjacent side.

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