Brake sealing structure capable of preventing powder leakage

Abstract

The utility model discloses a brake sealing structure for preventing powder leakage, which relates to the technical field of brake sealing structures for preventing powder leakage, and comprises a stator body, a first protective shell and a second protective shell are fixed on two side surfaces of the stator body by fixing bolts through threaded holes, a rotor body is arranged in the stator body, a driving body is fixed on the rotor body, and the driving body is fixed on the stator body. The driving body penetrates through a bearing groove formed in the surface of the first protective shell and extends to the outside. According to the utility model, the design structure is reasonable, the outer rings of the stepped first sealing body and the second sealing body are clamped with the stator body, and a protective barrier is constructed in the gap between the rotor body and the stator body in advance, so that the risk that magnetic powder leaks from the edge gap is greatly reduced from the source; the multiple sealing grooves in the front and rear side faces of the rotor are matched with the sealing rings, contact surface micro gaps are filled through elastic deformation, and double sealing of the front and rear ends of the rotor body is achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of brake sealing structure for preventing powder leakage, specifically a brake sealing structure for preventing powder leakage. Background Technology

[0002] In practical applications of brakes, the sealing problem of magnetic powder has always affected the performance of the equipment and its long service life. Existing sealing structures have obvious shortcomings in many aspects and are difficult to meet the requirements of efficient and stable operation.

[0003] In terms of sealing and leak prevention performance, the sealing design of traditional brakes is often relatively simple and lacks a progressive protective barrier. The gap between the rotor and stator body can easily become the main channel for magnetic powder leakage. Moreover, most structures do not have effective double sealing measures for the front and rear ends of the rotor. Relying on a single seal is not enough to fill the micro gaps on the contact surface, which makes it easy for magnetic powder to fall off from the edge gaps. This not only affects the stability of the braking effect, but may also cause contamination of the drive components. At the same time, the existing structure is not reasonably designed for the magnetic powder to accommodate the magnetic powder. During the movement, the magnetic powder is prone to falling off and leaking due to the lack of stable constraints.

[0004] In terms of equipment protection and lifespan assurance, the existing sealing structure has shortcomings in its protective design. During the fixing process, the sealing body often deforms due to rigid compression, affecting the sealing fit. External protection measures are insufficient, and dust and impurities can easily enter the internal sealing structure and contaminate it. External collisions may also directly damage core components.

[0005] In terms of improving operational efficiency, the detailed design of traditional drive structures is not perfect. The bearing body is prone to axial movement during rotation, affecting the stability of power transmission; the connection between the drive body and external equipment lacks precise positioning, which can easily cause vibration and wear due to eccentric rotation, increasing frictional resistance and reducing the operating efficiency of the brake. To address these issues, we provide a brake sealing structure that prevents powder leakage. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a brake sealing structure that prevents powder leakage.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a brake sealing structure for preventing powder leakage, comprising a stator body, wherein a first protective shell and a second protective shell are fixed to both sides of the stator body via threaded holes by fixing bolts; a rotor body is disposed in the stator body, and a driving body is fixed on the rotor body; the driving body extends to the outside through a bearing groove opened on the surface of the first protective shell; a coil groove is opened in the stator body, and a coil body is disposed in the coil groove; a first groove is opened in the stator body, and a second groove is uniformly opened on the surface of the rotor body; magnetic powder is filled between the first groove and the second groove; a first sealing body and a second sealing body overlap the rotor body, and the outer rings of the first sealing body and the second sealing body are larger than the rotor body and snapped onto the surface of the stator body; a sealing groove is opened on each side of the rotor body, and a sealing ring is disposed in the sealing groove, and the side of the sealing ring is fixed to the opposite surface of the first sealing body and the second sealing body respectively.

[0010] Furthermore, gaskets are provided on the sides of both the first and second sealing bodies. Threaded holes are provided on the gaskets, the first sealing body, the second sealing body, and the stator body. The threaded holes are connected to the second seal by fixing bolts. The gaskets, the first sealing body, the second seal, and the stator body are connected by fixing bolts.

[0011] Furthermore, a wire hole is formed on the surface of the stator body, and the coil body connecting wire passes through the wire hole.

[0012] Furthermore, a bearing body is sleeved on the surface of the drive body, and the bearing body is embedded in the bearing groove in the first protective shell.

[0013] Furthermore, a limiting groove is formed on the surface of the driving body, and a positioning hole is provided in the center of the driving body.

[0014] Furthermore, a T-shaped groove is provided at the center of the outer surface of the second protective shell, and a through hole is provided on the surface of the first sealing body, through which the driving body passes.

[0015] (III) Beneficial Effects:

[0016] Compared with existing technologies, this leak-proof brake sealing structure has the following advantages:

[0017] I. This utility model uses a stepped first and second sealing body outer ring to engage with the stator body, pre-constructing a protective barrier at the gap between the rotor and stator bodies, significantly reducing the risk of magnetic powder leakage from edge gaps at the source; multiple sealing grooves on the front and rear sides of the rotor cooperate with the sealing ring, filling the microscopic gaps on the contact surface through elastic deformation, achieving double sealing of the front and rear ends of the rotor body, further enhancing the sealing effect; the embedded sealing ring design within the stepped structure extends the leakage path of the magnetic powder, and with the elastic compression action, it can effectively prevent the magnetic powder from falling onto the surface of the drive body and prevent it from leaking from the bearing position on the surface of the drive body, ensuring the clean operation of the drive components. At the same time, the first groove of the stator body and the three evenly distributed second grooves of the rotor body provide a stable space for the magnetic powder, reducing the shedding and leakage of the magnetic powder during movement and ensuring the stability of the magnetic force.

[0018] Second, the gaskets on the outside of the first and second sealing bodies can buffer the pressure impact during fixing, prevent the sealing bodies from deforming due to rigid compression, and enhance the tightness of the fit between the sealing bodies and the protective shell. The first and second protective shells provide mechanical protection for the internal sealing structure, preventing external dust and impurities from entering and affecting the sealing effect, while also isolating the core components from damage caused by external collisions.

[0019] Third, this utility model precisely limits the installation position of the bearing body by means of the limiting groove on the surface of the drive body, preventing the bearing from moving axially during rotation; the positioning hole in the center of the drive body is connected to the external drive equipment to ensure the coaxiality of power transmission and reduce vibration and wear caused by eccentric rotation. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the front and back structures of the first protective shell in this utility model;

[0022] Figure 3 This is a schematic diagram of the front and back structures of the second protective shell in this utility model;

[0023] Figure 4 This is a schematic diagram of the disassembled structure of the gasket and stator body in this utility model;

[0024] Figure 5 This is a schematic diagram of the three-dimensional structure of the stator body in this utility model;

[0025] Figure 6 This is a schematic diagram of the three-dimensional structure of the gasket in this utility model;

[0026] Figure 7 This is a three-dimensional structural diagram of the first sealing body and the second sealing body in this utility model;

[0027] Figure 8 This is a three-dimensional structural diagram of the rotor body in this utility model;

[0028] Figure 9 In this utility model Figure 1 A partial sectional view of the structure;

[0029] Figure 10 In this utility model Figure 9 The left view.

[0030] In the diagram: 1. Stator body; 2. First protective shell; 3. Fixing bolt; 4. Bearing body; 5. Drive body; 6. Limiting groove; 7. Positioning hole; 8. Wire hole; 9. Bearing groove; 10. Second protective shell; 11. T-slot; 12. Threaded hole; 13. Gasket; 14. Second sealing body; 15. First groove; 16. Sealing ring; 17. Through hole; 18. First sealing body; 19. Second groove; 20. Sealing groove; 21. Rotor body; 22. Coil body; 23. Coil groove; 24. Magnetic powder. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0032] like Figure 1-10 As shown, this utility model provides a technical solution: a brake sealing structure for preventing powder leakage, including a stator body 1, a rotor body 21 disposed in the stator body 1, a first sealing body 18 and a second sealing body 14 overlapping the front and rear sides of the rotor body 21, and the outer rings of the first sealing body 18 and the second sealing body 14 are larger than the rotor body 21 and are snapped onto the surface of the stator body 1. This outer ring being larger than the rotor body 21 is similar to a stepped design, which can pre-form a protective barrier at the gap between the rotor body 21 and the stator body 1, greatly reducing the risk of magnetic powder 24 leaking from the edge gaps. Multiple sealing grooves 20 are opened at both the front and rear of the rotor, and sealing rings 16 are disposed in the sealing grooves 20. The sides of the sealing rings 16 are fixed to the opposing surfaces of the first sealing body 18 and the second sealing body 14 respectively. The cooperation between the sealing rings 16 and the sealing grooves 20 can fill the micro gaps of the contact surface through elastic deformation, achieving double sealing of the front and rear ends of the rotor body 21. When the sealing rings 16 are used to perform stepped embedded sealing of the rotor body 21, as Figure 7 and Figure 8As shown, the stepped structure can extend the leakage path of the magnetic powder 24. Combined with the elastic compression of the sealing ring 16, it can effectively prevent the magnetic powder 24 from falling onto the surface of the drive body 5 connected to the front of the rotor body 21, and at the same time avoid leakage from the bearing position on the surface of the drive body 5, ensuring the clean operation of the drive components.

[0033] Specifically, gaskets 13 are provided in front of the first sealing body 18 and behind the second sealing body 14. The gaskets 13 buffer the pressure impact during fixing, preventing deformation of the sealing body due to rigid compression, and simultaneously enhancing the tightness of the fit between the sealing body and the protective shell. First protective shells 2 and second protective shells 10 are provided in front of and behind the gaskets 13 and the stator body 1. These protective shells provide mechanical protection for the internal sealing structure, preventing external dust and impurities from entering and affecting the sealing effect, while also isolating the core components from external impacts. The first protective shell 2, second protective shell 10, gaskets 13, first sealing body 18, second sealing body 14, and stator body 1 are all provided with threaded holes 12, and each component is fixed to the stator body 1 through the threaded holes 12 by fixing bolts 3. Figure 5 and Figure 7 As shown, the threaded holes 12 on the surface of the stator body 1 and the surfaces of the first sealing body 18 and the second sealing body 14 adopt a symmetrical semi-circular design. When the gasket 13 is pressed and sealed, this design can limit the circumferential displacement of the sealing body through the cooperation of the bolt and the semi-circular hole, which plays a role in limiting and fixing the first sealing body 18 and the second sealing body 14, preventing the sealing body from rotating with the rotor body 21, and ensuring the stability of the sealing structure. At the same time, a T-shaped groove 11 is provided at the center of the outer surface of the second protective shell 10. The external strong cooling fan is connected through the T-shaped groove 11, which can quickly remove the heat generated by the brake during operation, avoid the aging of the sealing ring 16 and the degradation of the performance of the magnetic powder 24 due to high temperature, realize the overall heat dissipation operation, and extend the service life of the equipment.

[0034] Specifically, such as Figure 1 As shown, a drive body 5 is fixed on the rotor body 21. The drive body 5 extends to the outside through the through hole 17 on the surface of the first sealing body 18 and the bearing groove 9 on the surface of the first protective shell 2. A limiting groove 6 is opened on the surface of the drive body 5. The limiting groove 6 can accurately limit the installation position of the bearing body 4 and prevent the bearing from moving axially during rotation. A positioning hole 7 is opened in the center of the drive body 5, which can be positioned and connected with the external drive equipment to ensure the coaxiality of power transmission and reduce vibration and wear caused by eccentric rotation. The bearing body 4 is embedded in the bearing groove 9 and is sleeved on the surface of the drive body 5. The rolling friction design of the bearing body 4 can reduce the frictional resistance when the drive body 5 rotates while ensuring sealing, so as to cooperate with the drive body 5 to rotate better and improve the operating efficiency of the brake.

[0035] Specifically, such as Figure 9 and Figure 10As shown, a coil slot 23 is provided in the stator body 1, and a coil body 22 is provided in the coil slot 23. A wire hole 8 is provided on the surface of the stator body 1. The connecting wire of the coil body 22 passes through the wire hole 8 and connects to the outside. The wire hole 8 can prevent the wire from getting tangled or rubbing with the rotating parts, ensuring the safety and stability of the circuit connection.

[0036] Specifically, such as Figure 9 and Figure 10 As shown, a first groove 15 is provided in the stator body 1, and three second grooves 19 are evenly provided on the surface of the rotor body 21. Magnetic powder 24 is filled between the first groove 15 and the second grooves 19. The groove structure can provide a stable space for the magnetic powder 24. The evenly distributed second grooves 19 can ensure that a uniform magnetic force is formed between the magnetic powder 24 and the rotor body 21 and the stator body 1, thereby improving the stability of the braking effect and reducing the shedding and leakage of the magnetic powder 24 during the movement.

[0037] It should be noted that in this document, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "fixed," "installed," "connected," and "linked" should be interpreted broadly. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "linked" can be a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A leak-proof brake sealing structure, comprising a stator body (1), wherein a first protective shell (2) and a second protective shell (10) are fixed to both sides of the stator body (1) via threaded holes (12) by fixing bolts (3), a rotor body (21) is disposed in the stator body (1), and a drive body (5) is fixed on the rotor body (21), the drive body (5) extending to the outside through a bearing groove (9) opened on the surface of the first protective shell (2), characterized in that: The stator body (1) has a coil groove (23) and a coil body (22) is provided in the coil groove (23). The stator body (1) has a first groove (15) and a second groove (19) is uniformly provided on the surface of the rotor body (21). Magnetic powder (24) is filled between the first groove (15) and the second groove (19). The rotor body (21) is overlapped with a first sealing body (18) and a second sealing body (14). The outer rings of the first sealing body (18) and the second sealing body (14) are larger than the rotor body (21) and are snapped onto the surface of the stator body (1). The side of the rotor body (21) is provided with a sealing groove (20). A sealing ring (16) is provided in the sealing groove (20). The side of the sealing ring (16) is fixed to the opposite side of the first sealing body (18) and the second sealing body (14).

2. The brake sealing structure for preventing powder leakage according to claim 1, characterized in that: Gaskets (13) are provided on the sides of the first sealing body (18) and the second sealing body (14). Gaskets (13), the first sealing body (18), the second sealing body (14) and the stator body (1) are all provided with threaded holes (12). The threaded holes (12) are connected to the second seal by fixing bolts (3). Gaskets (13), the first sealing body (18), the second seal and the stator body (1) are connected by fixing bolts (3).

3. The brake sealing structure for preventing powder leakage according to claim 1, characterized in that: The stator body (1) has a wire hole (8) on its surface, and the connecting wire of the coil body (22) passes through the wire hole (8).

4. The brake sealing structure for preventing powder leakage according to claim 1, characterized in that: The surface of the drive body (5) is fitted with a bearing body (4), which is embedded in the bearing groove (9) in the first protective shell (2).

5. The brake sealing structure for preventing powder leakage according to claim 1, characterized in that: The driving body (5) has a limiting groove (6) on its surface and a positioning hole (7) at its center.

6. The brake sealing structure for preventing powder leakage according to claim 1, characterized in that: A T-shaped groove (11) is provided at the center of the outer surface of the second protective shell (10).

7. The brake sealing structure for preventing powder leakage according to claim 1, characterized in that: The first sealing body (18) has a through hole (17) on its surface, and the driving body (5) passes through the through hole (17).

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