Dustproof support
By installing a detachable sealing component on the car bearing bracket, the problem of dust intrusion during the transmission process is solved, and the dustproof and heat dissipation effect of the bearing is achieved.
Patent Information
- Application Number
- CN202323549635.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-26
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2033-12-26
AI Technical Summary
Existing automotive bearing brackets are easily invaded by external dust during transmission, resulting in poor rotation of the bearing and shortened service life.
A dust-proof bracket is designed to form a closed loop to reduce dust entry by installing detachable sealing components on both sides of the bearing bracket, including nuts, snap rings and fan sealing blocks.
It effectively reduces the dust entry of the bearing during the start process, ensures the normal rotation of the bearing, and dissipates heat through the tilt state of the fan blade when the bearing stops.
Smart Images
Figure CN222458135U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of automobile parts, and in particular relates to a dustproof bracket. Background Art
[0002] Automobile bearing brackets are generally used to support the output shaft to prevent the output shaft from shaking during the transmission of kinetic energy. When the output shaft is too long, the bearing bracket can also prevent the output shaft from bending after long-term use. Automobile bearing brackets usually expose the bearing directly to the outside. When the output shaft drives the bearing to rotate, external dust can easily enter the bearing, thereby affecting the rotation of the bearing and reducing the service life of the bearing. Utility Model Content
[0003] The utility model aims at solving the deficiencies of the prior art and provides a dustproof bracket.
[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dustproof bracket, comprising a bearing bracket, characterized in that: the bearing bracket is fixed to the vehicle by bolts, a bearing is sleeved at the center of the bearing bracket, a transmission shaft is installed in the bearing, and sealing components are detachably installed on both side end surfaces of the bearing bracket;
[0005] The sealing assembly includes a nut and a retaining ring. A screw ring is fixed to a side of the nut close to the bearing. The screw ring is threadedly installed in the bearing bracket. The retaining ring is sleeved on the transmission shaft. A rotatable sealing block is provided on the transmission shaft.
[0006] Optionally, a through hole is opened in the bearing bracket, and internal threads are arranged on both sides of the through hole. The bearing is installed in the through hole, and the screw ring is installed together with the internal threads.
[0007] Optionally, the retaining ring is sleeved on the transmission shaft and is located between the bearing and the nut. At least two sliding grooves are opened on the inner wall of the retaining ring. Limiting balls roll in the sliding grooves, and the depth of the sliding grooves gradually deepens in the counterclockwise direction.
[0008] Optionally, a rotating shaft is rotatably connected to the outer peripheral side of the retaining ring, the sealing block is a fan blade, the rotating shaft slides on the fan blade, and is connected to the inner wall of the fan blade through a spring, and a torsion spring is also sleeved on the rotating shaft.
[0009] Optionally, a sealing edge is fixed on the end surface of the fan piece away from the bearing, and buckle grooves are respectively provided on both sides of the fan piece to buckle two adjacent fan pieces together.
[0010] In summary, compared with the prior art, the present invention has the following beneficial effects:
[0011] 1. Due to the setting of the sealing assembly, the retaining ring can be driven to rotate through the transmission shaft, so that the fan blades are connected end to end to form a closed ring, which effectively reduces the entry of dust during the starting process of the bearing.
[0012] 2. The fan blades can also be set. When the retaining ring is in a stopped state, the fan blades are in an inclined state, so the bearing can be cooled. Therefore, the setting of the sealing component can achieve dust prevention when the bearing is moving, and heat dissipation when the bearing is stopped. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a three-dimensional diagram of the utility model.
[0014] Figure 2 It is a half-section view of the utility model.
[0015] Figure 3 It is a three-dimensional diagram of the clamping ring 13 of the present invention.
[0016] 10. Bearing bracket; 11. Transmission shaft; 12. Nut; 13. Snap ring; 14. Fan blade; 15. Bearing; 16. Screw ring; 17. Rotating shaft; 18. Slide groove; 19. Limit ball; 20. Sealing edge. DETAILED DESCRIPTION
[0017] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present invention.
[0018] As shown in Figure 1-3, a dustproof bracket includes a bearing bracket 10, which is characterized in that: the bearing bracket 10 is fixed to the vehicle by bolts, a bearing 15 is sleeved at the center of the bearing bracket 10, a transmission shaft 11 is installed in the bearing 15, and sealing components are detachably installed on both side end surfaces of the bearing bracket 10;
[0019] The sealing assembly includes a nut 12 and a retaining ring 13. A screw ring 16 is fixed to one side of the nut 12 close to the bearing 15. The screw ring 16 is threadedly installed in the bearing bracket 10. A through hole is opened in the bearing bracket 10, and internal threads are arranged on both sides of the through hole. The bearing 15 is installed in the through hole, and the screw ring 16 is installed together with the internal threads. The retaining ring 13 is sleeved on the transmission shaft 11. A rotatable sealing block is provided on the transmission shaft 11. The retaining ring 13 is sleeved on the transmission shaft 11 and is located between the bearing 15 and the nut 12. At least two slide grooves 18 are opened on the inner wall of the retaining ring 13. A limiting ball 19 rolls in the slide groove 18, and the depth in the slide groove 18 gradually deepens along the counterclockwise direction.
[0020] The outer peripheral side of the retaining ring 13 is rotatably connected with a rotating shaft 17, and the sealing block is a fan blade 14. A sealing edge 20 is fixed to the end face of the fan blade 14 on the side away from the bearing 15. Buckle grooves are respectively provided on both sides of the fan blade 14 to buckle two adjacent fan blades 14 together. The rotating shaft 17 slides on the fan blade 14 and is connected to the inner wall of the fan blade 14 through a spring. A torsion spring is also sleeved on the rotating shaft 17. Through the setting of the rotating shaft 17, the rotating shaft 17 can be located in the middle part of the fan blade 14 when the retaining ring 13 is stationary, thereby preventing the tail of the fan blade 14 from extending too long and contacting other parts, thereby preventing the fan blade 14 from contacting other parts and causing damage when the retaining ring 13 rotates.
[0021] When in use, first install the bearing, then screw the sealing assembly to the bearing bracket 10 through the screw ring 16, and then insert the transmission shaft 11. Then, when the transmission shaft 11 starts to rotate clockwise, it can move to the shallower side of the slide groove 18 through the limiting ball 19. When the limiting ball 19 moves to a shallower place, it will be stuck on the transmission shaft 11. At this time, the transmission shaft 11 will drive the retaining ring 13 to rotate through the limiting ball 19. The rotation of the retaining ring 13 will drive the fan blade 14 to rotate at the same time through inertia, so that the fan blade 14 can overcome the elastic force of the torsion spring and produce self-rotation. At this time, the rotating shaft 17 compresses the spring, and the fan blade 14 will be connected end to end to form a closed ring, which effectively reduces the entry of dust during the start-up process of the bearing.
[0022] When the transmission shaft 11 stops rotating, the retaining ring 13 will gradually stop rotating, and then the spring and torsion spring on the rotating shaft 17 will be reset. At this time, the fan blades 14 will be in an inclined state, and the bearing can be cooled. Therefore, the setting of the sealing component can achieve dust prevention when the bearing is moving, and heat dissipation when the bearing stops.
[0023] Obviously, the described embodiments are only a part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.
Claims
1. A dustproof bracket, comprising a bearing bracket (10), characterized in that: The bearing bracket (10) is fixed to the vehicle by means of bolts, a bearing (15) is sleeved at the center of the bearing bracket (10), a transmission shaft (11) is installed in the bearing (15), and sealing components are detachably installed on both side end surfaces of the bearing bracket (10); The sealing assembly comprises a nut (12) and a retaining ring (13); a screw ring (16) is fixed to a side of the nut (12) close to the bearing (15); the screw ring (16) is threadedly mounted in the bearing bracket (10); the retaining ring (13) is sleeved on the transmission shaft (11); and a rotatable sealing block is provided on the transmission shaft (11).
2. The dustproof bracket according to claim 1, characterized in that: A through hole is provided in the bearing bracket (10), and internal threads are provided on both sides of the through hole. The bearing (15) is installed in the through hole, and the screw ring (16) is installed together with the internal threads.
3. The dustproof bracket according to claim 1, characterized in that: The snap ring (13) is sleeved on the transmission shaft (11) and is located between the bearing (15) and the nut (12). At least two slide grooves (18) are provided on the inner wall of the snap ring (13). A limiting ball (19) rolls in the slide groove (18). The depth of the slide groove (18) gradually increases in a counterclockwise direction.
4. The dustproof bracket according to claim 1, characterized in that: The outer peripheral side of the clamping ring (13) is rotatably connected to a rotating shaft (17); the sealing block is a fan blade (14); the rotating shaft (17) slides on the fan blade (14) and is connected to the inner wall of the fan blade (14) via a spring; a torsion spring is also sleeved on the rotating shaft (17).
5. The dustproof bracket according to claim 4, characterized in that: A sealing edge (20) is fixed on the end surface of one side of the fan piece (14) away from the bearing (15), and buckling grooves are respectively provided on both sides of the fan piece (14) so that two adjacent fan pieces (14) can be buckled together.