Dustproof sealing device for parts of gear reducer
By designing multiple sealing structures and self-heating functions in the gear reducer, the problem of dust cannot be discharged in time in traditional sealing devices is solved, and the dustproof performance and the practicality of the equipment are improved.
Patent Information
- Application Number
- CN202421286625.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-06-06
AI Technical Summary
In the dust-proof sealing device of traditional gear reducer parts, a single sealing ring cannot effectively prevent dust from entering, and the sealing ring deformation causes dust to enter the interior when rotating at high speed.
A multi-seal structure is designed, including a shell, a sealing cover, a stator, a rotor, a sealing ring, etc., which is sealed by a sealing ring between the stator and the rotor, and sealed by a sealing ring between the rotor and the shaft. Combined with a limit ring and a dustproof net, the automatic discharge of dust and the self-heat dissipation of the equipment is realized.
It effectively prevents dust from entering the gear reducer, improves dust resistance, solves the problem that dust cannot be discharged in time in traditional sealing devices, and improves the practicality of the equipment through self-heating function.
Smart Images
Figure CN222668846U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gear reducers, in particular to a dustproof sealing device for gear reducer parts. Background Art
[0002] A gear reducer is a mechanical transmission device, usually composed of a set of gears, used to reduce the speed of the drive shaft and increase the torque. They are widely used in various industrial fields, including manufacturing, mining, energy production, automobiles, aerospace, etc. The parts inside the gear reducer are usually in a high-speed rotation and high-torque working state. In order to prevent dust, foreign matter and impurities from entering the reducer and reduce the wear and damage of the parts, a dust-proof sealing device for the gear reducer parts is required.
[0003] In the use of traditional gear reducer parts dust sealing devices, the characteristics of elastic materials, such as rubber or silicone, are utilized, and the shape and structure are designed to be in close contact with the housing or key components of the gear reducer to form a closed isolation area, preventing dust, foreign matter and impurities from entering the internal space of the reducer.
[0004] However, it does not solve the problem that the shaft and the bearing are sealed only by a single sealing ring, dust cannot be discharged in time when there is dust, and the sealing ring is deformed when rotating at high speed, causing dust to enter the deceleration inside the housing. Utility Model Content
[0005] In order to make up for the above shortcomings, the utility model provides a dustproof sealing device for gear reducer parts, aiming to improve the problem that sealing is performed by only relying on a single sealing ring between the rotating shaft and the bearing, dust cannot be discharged in time when there is dust, and the sealing ring is deformed when rotating at high speed, causing dust to enter the inside of the housing reducer.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a dustproof sealing device for gear reducer parts, comprising a shell, a sealing cover is fixedly connected to the inside of the shell, a stator is fixedly connected to the inside of the sealing cover, a sealing ring is embedded in the inside of the stator, the outer wall of the sealing ring is fitted in the inside of the sealing cover, a slot is opened in the inside of the stator, a connecting port is opened in the inside of the stator, one end of the stator is fixedly connected to a limiting ring, a rotor is rotatably connected to the inside of the stator, the outer wall of the limiting ring is embedded in the inside of the rotor, a sealing ring is embedded between the stator and the rotor, a rotating shaft is passed through the inside of the rotor, a sealing assembly is arranged in the inside of the rotor, a slot is opened in the inside of the rotor, and a connecting port is opened in the inside of the rotor.
[0007] As a further description of the above technical solution:
[0008] The sealing assembly comprises a sealing ring three, the outer wall of the sealing ring three is embedded in the rotor, and the outer wall of the sealing ring three is attached to the outer wall of the rotating shaft.
[0009] As a further description of the above technical solution:
[0010] One end of the rotating shaft is fixedly connected with a fan blade, and a mounting hole is provided inside the shell.
[0011] As a further description of the above technical solution:
[0012] A fixing ring is provided on one side of the shell, and a connecting column is fixedly connected to one side of the fixing ring.
[0013] As a further description of the above technical solution:
[0014] A slot is provided inside the connecting column, a magnet is fixedly connected inside the connecting column, and an outer wall of the connecting column is slidably connected inside the mounting hole.
[0015] As a further description of the above technical solution:
[0016] One side of the fixing ring is fixedly connected with a sealing strip 1, and one side of the sealing strip 1 is attached to one side of the shell.
[0017] As a further description of the above technical solution:
[0018] A frame is slidably connected inside the fixing ring, and a dustproof net is fixedly connected inside the frame.
[0019] As a further description of the above technical solution:
[0020] A second sealing strip is fixedly connected to one side of the frame, and one side of the second sealing strip is fitted inside the fixing ring.
[0021] The utility model has the following beneficial effects:
[0022] 1. In the utility model, first, the outer wall of the stator is fixed inside the sealing cover and sealed by the sealing ring 1, and then the inside of the rotor is embedded in the outer wall of the limiting ring for limiting, and the sealing ring 2 is used to seal between the stator and the rotor, so as to achieve the effect of automatic dust discharge, solve the problem that only a single sealing ring is used for sealing between the rotating shaft and the bearing, dust cannot be discharged in time when there is dust, and the sealing ring is deformed when rotating at high speed, causing dust to enter the inside of the housing speed reducer, thereby improving the dustproof performance of the dustproof sealing device of the gear reducer parts.
[0023] 2. In the utility model, the rotating shaft drives the fan blades to rotate, and the fan blades suck the external air into the shell through the filtration of the dustproof net to dissipate the heat of the parts in the shell, thereby achieving the effect of self-heating of the reducer, solving the problem that the traditional gear reducer will generate heat during operation and needs to rely on an external heat dissipation device to dissipate the heat, thereby improving the practicality of the gear reducer. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 A three-dimensional diagram of the dustproof sealing device for gear reducer parts proposed by the utility model;
[0025] Figure 2 A schematic diagram of the internal structure of the sealing cover of the dustproof sealing device for gear reducer parts proposed by the utility model;
[0026] Figure 3 A schematic diagram of the internal structure of the rotor of the dustproof sealing device for gear reducer parts proposed by the utility model;
[0027] Figure 4 This is a schematic diagram of the fan blade structure of the dustproof sealing device for gear reducer parts proposed by the utility model;
[0028] Figure 5 This is a schematic diagram of the framework structure of the dustproof sealing device for gear reducer parts proposed by the utility model.
[0029] Legend:
[0030] 1. Shell; 2. Sealing cover; 3. Stator; 4. Rotor; 5. Rotating shaft; 6. Sealing ring 1; 7. Slot 1; 8. Connecting port 1; 9. Limiting ring; 10. Slot 2; 11. Sealing ring 2; 12. Sealing ring 3; 13. Connecting port 2; 14. Fan blade; 15. Fixing ring; 16. Mounting hole; 17. Connecting column; 18. Slot; 19. Magnet; 20. Sealing strip 1; 21. Frame; 22. Sealing strip 2; 23. Dustproof net. DETAILED DESCRIPTION
[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0032] Reference Figure 1-Figure 3, the utility model provides an embodiment: a dustproof sealing device for gear reducer parts, including a shell 1, a sealing cover 2 is fixedly connected inside the shell 1, a stator 3 is fixedly connected inside the sealing cover 2, a sealing ring 6 is embedded inside the stator 3, the outer wall of the sealing ring 6 is fitted inside the sealing cover 2, a slot 7 is opened inside the stator 3, a connecting port 8 is opened inside the stator 3, a limiting ring 9 is fixedly connected to one end of the stator 3, a rotor 4 is rotatably connected inside the stator 3, the outer wall of the limiting ring 9 is embedded inside the rotor 4, a sealing ring 2 11 is embedded between the stator 3 and the rotor 4, a rotating shaft 5 is passed through the rotor 4, a sealing assembly is arranged inside the rotor 4, a slot 2 10 is opened inside the rotor 4, a connecting port 2 13 is opened inside the rotor 4, and the sealing assembly includes a sealing ring 3 12, the outer wall of the sealing ring 3 12 is embedded inside the rotor 4, and the outer wall of the sealing ring 3 12 is fitted on the outer wall of the rotating shaft 5;
[0033] Specifically, the rotation shaft 5 and the sealing cover 2 are achieved by the close cooperation between the stator 3 and the rotor 4. The outer wall of the stator 3 is firmly fixed inside the sealing cover 2. In order to further enhance the sealing effect, a sealing ring 6 is provided between the stator 3 and the sealing cover 2. The material of the sealing ring 6 is usually selected from rubber or silicone materials with excellent elasticity and wear resistance, which can effectively prevent tiny particles such as dust from invading from the gap. The rotor 4 is a key component in the sealing structure, and its interior is embedded in the outer wall of the limiting ring 9. The limiting ring 9 is used to constrain the rotor 4 to ensure that it can maintain a stable trajectory and position during the rotation process. At the same time, a sealing ring 11 is also provided between the stator 3 and the rotor 4 to further enhance the sealing performance between the two. In addition to the stator 3 and In addition to the seals between the rotors 4, the rotor 4 and the rotating shaft 5 are also sealed by a sealing ring three 12. This multiple sealing design concept aims to build a tight protective barrier to ensure that dust and other impurities cannot invade from any gaps. During the operation of the equipment, the rotor 4 rotates on the outer wall of the stator 3. When dust in the environment inevitably enters the interior of the rotor 4 and the stator 3, the dust will enter the interior of the slot two 10 through the tiny gap between the rotor 4 and the stator 3. Since the slot two 10 is designed as a concave structure, the dust will naturally slide down under the action of gravity and be smoothly discharged through the connecting port two 13. This ingenious design effectively prevents dust from accumulating between the stator 3 and the rotor 4, thereby ensuring the normal operation of the equipment and extending its service life.
[0034] Reference Figure 4 and Figure 5, a fan blade 14 is fixedly connected to one end of the rotating shaft 5, a mounting hole 16 is opened inside the shell 1, a fixing ring 15 is provided on one side of the shell 1, a connecting column 17 is fixedly connected to one side of the fixing ring 15, a slot 18 is opened inside the connecting column 17, a magnet 19 is fixedly connected to the connecting column 17, and the outer wall of the connecting column 17 is slidably connected to the inside of the mounting hole 16, a sealing strip 20 is fixedly connected to one side of the fixing ring 15, and one side of the sealing strip 20 is attached to one side of the shell 1, a frame 21 is slidably connected to the inside of the fixing ring 15, a dustproof net 23 is fixedly connected to the inside of the frame 21, a sealing strip 22 is fixedly connected to one side of the frame 21, and one side of the sealing strip 22 is attached to the inside of the fixing ring 15;
[0035] Specifically, when the shaft 5 is started, the power of its rotation will be accurately transmitted to the fan blades 14, causing the fan blades 14 to rotate and inhale external air. The inhaled air is filtered by the dustproof net 23 to block dust and impurities from entering the shell 1. The role of the dustproof net 23 is crucial. It can not only filter the dust in the air, but also effectively prevent small insects or other foreign objects from entering the shell 1, thereby ensuring the safe operation of the equipment. The dustproof net 23 is fixed by a solid frame 21. The frame 21 is made of high-strength material and has excellent durability and stability. The frame 21 not only fixes the dustproof net 23, but also plays a supporting and protective role, so that the dustproof net 23 can operate stably for a long time. The fixing ring 15 connects the frame 21 and The key component of the shell 1 is accurately inserted into the mounting hole 16 through the connecting column 17 to achieve a tight connection with the shell 1. At the same time, the fixing ring 15 also utilizes the magnetism of the magnet 19 to adsorb with the shell 1, thereby further enhancing the stability of the connection. This connection method is not only simple and easy, but also can effectively prevent dust from entering the interior of the shell 1 from the surrounding gaps. In order to further improve the sealing performance, a sealing strip 20 is used between the fixing ring 15 and the shell 1 for sealing. This sealing strip is made of soft and durable material and can fit tightly between the fixing ring 15 and the shell 1 to effectively prevent the intrusion of dust and moisture. Similarly, the frame 21 and the fixing ring 15 are also sealed by a sealing strip 22.
[0036] Working principle: When the dustproof sealing device for gear reducer parts is used, the rotating shaft 5 and the sealing cover 2 are sealed by the cooperation of the stator 3 and the rotor 4. The outer wall of the stator 3 is fixed inside the sealing cover 2 and sealed by the sealing ring 1 6. Then the inside of the rotor 4 is embedded in the outer wall of the limiting ring 9 for limiting. The stator 3 and the rotor 4 are sealed by the sealing ring 2 11. At the same time, the rotor 4 and the rotating shaft 5 are sealed by the sealing ring 3 12. The rotor 4 rotates on the outer wall of the stator 3. When dust enters the inside of the rotor 4 and the stator 3, it enters the inside of the slot 2 10 through the gap between the rotor 4 and the rotor 4. Since the slot 2 10 is a concave structure, the dust will slide through the connecting port 2 13 is discharged to prevent dust from accumulating between the stator 3 and the rotor 4, and then the fan blades 14 are driven to rotate when the shaft 5 rotates, and the external air is sucked into the shell 1 through the fan blades 14 through the filtration of the dustproof net 23 to dissipate the heat of the parts in the shell 1, the dustproof net 23 is fixed by the frame 21, and the frame 21 is set at a gap limit on one side of the shell 1 through the fixing ring 15, the fixing ring 15 is inserted into the mounting hole 16 through the connecting column 17 for positioning, and is adsorbed with the shell 1 through the magnetism of the magnet 19, the fixing ring 15 and the shell 1 are sealed by the sealing strip 1 20, and the frame 21 and the fixing ring 15 are sealed by the sealing strip 22, so that dust enters the shell 1 from the surrounding gaps.
[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A dustproof sealing device for gear reducer parts, comprising a housing (1), characterized in that: A sealing cover (2) is fixedly connected to the inside of the housing (1), a stator (3) is fixedly connected to the inside of the sealing cover (2), a sealing ring (6) is embedded in the inside of the stator (3), the outer wall of the sealing ring (6) is fitted in the inside of the sealing cover (2), a slot (7) is provided in the inside of the stator (3), a connecting port (8) is provided in the inside of the stator (3), a limiting ring (9) is fixedly connected to one end of the stator (3), a rotor (4) is rotatably connected to the inside of the stator (3), the outer wall of the limiting ring (9) is embedded in the inside of the rotor (4), a sealing ring (11) is embedded between the stator (3) and the rotor (4), a rotating shaft (5) is passed through the inside of the rotor (4), a sealing assembly is arranged in the inside of the rotor (4), a slot (10) is provided in the inside of the rotor (4), and a connecting port (13) is provided in the inside of the rotor (4).
2. The dustproof sealing device for gear reducer parts according to claim 1 is characterized in that: The sealing assembly comprises a sealing ring three (12), the outer wall of the sealing ring three (12) is embedded in the rotor (4), and the outer wall of the sealing ring three (12) is attached to the outer wall of the rotating shaft (5).
3. The dustproof sealing device for gear reducer parts according to claim 1 is characterized in that: A fan blade (14) is fixedly connected to one end of the rotating shaft (5), and a mounting hole (16) is provided inside the housing (1).
4. The dustproof sealing device for gear reducer parts according to claim 1 is characterized in that: A fixing ring (15) is provided on one side of the housing (1), and a connecting column (17) is fixedly connected to one side of the fixing ring (15).
5. The dustproof sealing device for gear reducer parts according to claim 4 is characterized in that: A slot (18) is provided inside the connecting column (17), a magnet (19) is fixedly connected inside the connecting column (17), and an outer wall of the connecting column (17) is slidably connected inside the mounting hole (16).
6. The dustproof sealing device for gear reducer parts according to claim 4 is characterized in that: One side of the fixing ring (15) is fixedly connected to a sealing strip (20), and one side of the sealing strip (20) is attached to one side of the housing (1).
7. The dustproof sealing device for gear reducer parts according to claim 4 is characterized in that: The fixing ring (15) is slidably connected to a frame (21) inside, and the frame (21) is fixedly connected to a dustproof net (23) inside.
8. The dustproof sealing device for gear reducer parts according to claim 7, characterized in that: A second sealing strip (22) is fixedly connected to one side of the frame (21), and one side of the second sealing strip (22) is fitted inside the fixing ring (15).