Sediment prevention device for driving motor of new energy bus
By designing a multi-layered protective structure consisting of a circular mudguard, a concave mudguard ring, and a convex mudguard base plate on the drive motor of a new energy bus, the problem of mud and sand damaging the output bearing of the drive motor is solved, improving the reliability and safety of the motor and reducing maintenance costs.
Patent Information
- Application Number
- CN202520511412.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-03-21
AI Technical Summary
The output bearing of the drive motor of new energy buses is easily damaged by mud and sand, which affects the driving safety of the whole vehicle and increases maintenance costs.
The multi-layered protective structure, consisting of a circular mudguard, a concave mudguard ring, and a convex mudguard base plate, prevents mud and sand from entering the bearing through its flow guiding and blocking design, forming a three-layer sealing structure.
It effectively prevents mud and sand from entering the drive motor, improving the reliability and safety of the motor and reducing maintenance costs.
Smart Images
Figure CN223978515U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of drive motor protection devices, specifically relating to a mud and sand prevention device for a drive motor of a new energy bus. Background Technology
[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.
[0003] New energy vehicles refer to automobiles that use unconventional vehicle fuels as their power source and integrate advanced technologies in vehicle power control and drive, resulting in vehicles with advanced technical principles and new technologies and structures. New energy buses are an important component of this category.
[0004] The drive motor of a new energy bus is a key component of the entire vehicle. Its reliability and stability are crucial to the safe operation of the vehicle, and improving the reliability and stability of the drive motor is a continuous goal pursued in vehicle design. Because the drive motor is located in the chassis, it is subjected to the impact of sand, gravel, and mud splashed from the road for extended periods. If the output bearing of the drive motor is not protected, its lifespan will be significantly reduced, leading to damage to the drive motor and affecting the overall driving safety of the vehicle. Utility Model Content
[0005] To address the aforementioned problems, this utility model provides a mud and sand prevention device for the drive motor of a new energy bus, which can solve the problem of mud and sand damaging the output bearing of the drive motor of a new energy bus, prevent mud and sand from entering the output bearing of the motor, reduce the maintenance cost of the drive motor, and improve the reliability and safety of the drive motor.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A mud and sand prevention device for a drive motor of a new energy bus includes a circular mudguard, a concave mudguard ring, and a convex mudguard base plate. The circular mudguard is mounted on the convex mudguard base plate, and one end of the output flange passes through the circular mudguard. The concave mudguard ring is disposed at one end of the circular mudguard and is connected to the output flange. The convex mudguard base plate is disposed at one end of the concave mudguard ring and is connected to the drive motor housing.
[0008] Furthermore, the circular mudguard plate is provided with a number of threaded holes at intervals, and the convex mudguard base plate is provided with a number of threaded holes at intervals.
[0009] Furthermore, the circular mudguard and the convex mudguard base plate are connected by bolts, with the bolts being screwed into the threaded holes on the circular mudguard and the convex mudguard base plate in sequence.
[0010] Furthermore, there is a gap between the circular mudguard and the concave mudguard ring.
[0011] Furthermore, one end of the concave mudguard ring is provided with a first circular protrusion, and the other end of the concave mudguard ring is provided with a circular groove.
[0012] Furthermore, the first circular protrusion is located at one end of the annular mudguard, and the circular groove is located at one end of the convex mudguard base plate.
[0013] Furthermore, the convex mudguard base plate is located outside the front bearing, which is mounted on the drive motor housing.
[0014] Furthermore, one end of the convex mudguard base plate is provided with a second circular protrusion.
[0015] Furthermore, the second circular protrusion is located within a circular groove on the concave mudguard ring.
[0016] Furthermore, the front bearing is sleeved on the motor output shaft, and an output flange is provided at one end of the motor output shaft.
[0017] Compared with the prior art, the advantages and positive effects of this utility model are:
[0018] This utility model uses a combination of a circular mudguard, a concave mudguard ring, and a convex mudguard base plate to form a multi-layered protection to prevent mud and sand from entering the bearing. The outer side of the circular mudguard has a circular protrusion structure, which can guide the mud and sand to the outside through the flow guiding structure, forming the first layer of protection.
[0019] A gap exists between the circular mudguard and the concave mudguard ring, which serves to prevent mud and sand from entering without affecting the rotation of the output shaft. The concave mudguard ring is assembled with the output flange, and then together with it with the motor output shaft, rotating synchronously with the motor output shaft. After assembly, the concave mudguard ring and the convex mudguard base plate cooperate to form a second protective structure, which can block the entry of mud and water, and has a certain fitting clearance to prevent friction caused by motor rotation.
[0020] The convex mudguard base plate is assembled to the drive motor housing with bolts, protecting the outside of the sealed bearing and forming a third sealing structure to prevent mud and sand from entering the front bearing. This three-layer protective device effectively prevents mud and sand from entering the drive motor, protecting the drive motor bearing. It solves the problem of mud and sand damaging the output bearing of the drive motor in new energy buses, avoids mud and sand entering the motor output bearing, reduces drive motor maintenance costs, and improves the reliability and safety of the drive motor. Attached Figure Description
[0021] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.
[0022] Figure 1 This is an explosion illustration of the anti-mud and sand device for the drive motor of this utility model;
[0023] Figure 2 This is a cross-sectional view of the anti-mud and sand device for the drive motor of this utility model.
[0024] Figure 3 This is a structural diagram of the convex mudguard of this utility model;
[0025] Figure 4 This is a structural diagram of the grooved mudguard of this utility model;
[0026] Figure 5 This is a structural diagram of the circular mudguard of this utility model;
[0027] In the figure: 1. Drive motor housing; 2. Convex mudguard base plate; 3. Concave mudguard ring; 31. First circular protrusion; 32. Circular groove; 4. Circular mudguard plate; 41. Second circular protrusion; 5. Output flange; 6. Front bearing; 7. Motor output shaft. Detailed Implementation
[0028] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.
[0029] The drive motor of a new energy bus is a key component of the entire vehicle. Its reliability and stability are crucial to the safe operation of the vehicle, and improving the reliability and stability of the drive motor is a continuous goal pursued in vehicle design. Because the drive motor is located in the chassis, it is subjected to the impact of sand, gravel, and mud splashed from the road for extended periods. If the output bearing of the drive motor is not protected, its lifespan will be significantly reduced, leading to damage to the drive motor and affecting the overall driving safety of the vehicle.
[0030] The present invention will now be described in detail with reference to the accompanying drawings. This embodiment discloses a mud and sand prevention device for a drive motor of a new energy bus. Figure 1 and Figure 2As shown, it includes a circular mudguard 4, a concave mudguard ring 3, and a convex mudguard base plate 2; the circular mudguard 4 is installed on the convex mudguard base plate 2, and one end of the output flange 5 passes through the circular mudguard 4; the concave mudguard ring 3 is set at one end of the circular mudguard 4, and the concave mudguard ring 3 is connected to the output flange 5; the convex mudguard base plate 2 is set at one end of the concave mudguard ring 3, and the convex mudguard base plate 2 is connected to the drive motor housing 1.
[0031] The circular mudguard 4, the concave mudguard ring 3, and the convex mudguard base plate 2 work together to form a multi-layer protection to prevent mud and sand from entering the bearing. The outer side of the circular mudguard 4 is provided with a circular protrusion structure, which can guide the mud and sand to the outside through the flow guiding structure, forming the first protective structure.
[0032] A gap exists between the circular mudguard 4 and the concave mudguard 3, which serves to prevent mud and sand from entering while not affecting the rotation of the output shaft. The concave mudguard 3 is assembled with the output flange 5, and then together with the motor output shaft 7, rotating synchronously with the motor output shaft 7. After assembly, the concave mudguard 3 and the convex mudguard base plate 2 cooperate to form a second protective structure, which can block the entry of mud and water, and has a certain fitting clearance to prevent friction caused by motor rotation.
[0033] The convex mudguard base plate 2 is assembled with the drive motor housing 1 by bolts, protecting the outside of the sealed bearing and forming a third sealing structure to prevent mud and sand from entering the front bearing 6. This three-layer protective device effectively prevents mud and sand from entering the drive motor, protecting the drive motor bearing. It solves the problem of mud and sand damaging the output bearing of the drive motor in new energy buses, avoids mud and sand entering the motor output bearing, reduces drive motor maintenance costs, and improves the reliability and safety of the drive motor.
[0034] The circular mudguard 4 has several threaded holes spaced apart, and the convex mudguard base plate 2 has several threaded holes spaced apart. The circular mudguard 4 and the convex mudguard base plate 2 are connected by bolts, which are screwed into the threaded holes on the circular mudguard 4 and the convex mudguard base plate 2 in sequence.
[0035] There is a gap between the circular mudguard 4 and the concave mudguard 3. The gap between the circular mudguard 4 and the concave mudguard 3 serves to prevent mud and sand from entering the shaft without affecting the rotation of the output shaft.
[0036] like Figure 5As shown, the circular mudguard 4 is the outermost protective structure, primarily responsible for preventing mud and sand from entering. It is bolted to the convex mudguard base plate 2. The output flange 5 passes through the circular mudguard 4, allowing mud and sand splashed onto the motor output shaft 7 during motor operation to be thrown out of the output shaft by centrifugal force. The small gap between the circular mudguard 4 and the concave mudguard rings 3 on the output flange 5 effectively blocks mud and sand from entering. Only a small amount of water or mud that cannot be blocked may enter the second layer of protection, where it is protected by the second protective structure.
[0037] like Figure 4 As shown, a first circular protrusion is provided at one end of the concave mudguard ring 3, and a circular groove 32 is provided at the other end of the concave mudguard ring 3. The first circular protrusion 31 is located at one end of the annular mudguard plate 4, and the circular groove 32 is located at one end of the convex mudguard base plate 2. The convex mudguard base plate 2 is located outside the front bearing 6, and the front bearing 6 is mounted on the drive motor housing 1.
[0038] The concave mudguard ring 3 is mounted together with the output flange 5 and rotates with the output flange 5, forming a second layer of protection. When the drive motor rotates, water or mud adhering to it is thrown out by centrifugal force, effectively preventing foreign objects from entering the motor. The inner side of the concave mudguard ring 3 is designed with a groove structure that effectively cooperates with the convex mudguard base plate 2 to prevent mud and sand from entering the motor.
[0039] like Figure 3 As shown, one end of the convex mudguard base plate 2 is provided with a second circular protrusion 41. The second circular protrusion 41 is located in the circular groove 32 on the concave mudguard ring 3. The front bearing 6 is sleeved on the motor output shaft 7, and one end of the motor output shaft 7 is provided with an output flange 5.
[0040] The convex mudguard base plate 2 is mounted on the drive motor housing 1 with eight bolts. Installed on the outside of the sealed bearing, the convex mudguard base plate 2 serves to protect the bearing. The second circular protrusion 41 in the convex mudguard base plate 2 cooperates with the circular groove 32 of the concave mudguard ring 3 to form a structure that both blocks mud and guides muddy water to the outside, preventing mud and water from entering the sealing structure. This effectively prevents mud and sand from entering the sealed bearing, forming a third layer of protection. These three layers of protection effectively prevent mud and sand from entering the bearing, preventing damage to the drive motor bearing during vehicle operation and reducing drive motor malfunctions.
[0041] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.
Claims
1. A new energy bus drive motor sand prevention device, characterized in that, The mudguard includes a circular ring mudguard, a concave mud ring and a convex mud bottom plate; the circular ring mudguard is installed on the convex mud bottom plate, and one end of an output flange plate penetrates through the circular ring mudguard; the concave mud ring is arranged at one end of the circular ring mudguard, and the concave mud ring is connected with the output flange plate; the convex mud bottom plate is arranged at one end of the concave mud ring, and the convex mud bottom plate is connected with a driving motor shell.
2. The device for preventing sand according to claim 1, wherein A plurality of threaded holes are arranged on the circular ring mudguard at intervals, and a plurality of threaded holes are arranged on the convex mud bottom plate at intervals.
3. The sand prevention device of a drive motor of a new energy bus, according to claim 2, characterized in that, The circular ring mudguard and the convex mud bottom plate are connected through bolts, and the bolts are screwed into the threaded holes on the circular ring mudguard and the threaded holes on the convex mud bottom plate in sequence.
4. The sand prevention device of a drive motor of a new energy bus, according to claim 1, characterized in that, The circular ring mudguard and the concave mud ring have a gap therebetween.
5. The sand prevention device of a drive motor of a new energy bus, according to claim 1, characterized in that, One end of the concave mud ring is provided with a first circular protrusion, and the other end of the concave mud ring is provided with a circular groove.
6. The sand prevention device of a drive motor of a new energy bus, according to claim 5, characterized in that, The first circular protrusion is located at one end of the circular ring mudguard, and the circular groove is located at one end of the convex mud bottom plate.
7. The sand prevention device of a drive motor of a new energy bus, according to claim 1, characterized in that, The convex mud bottom plate is located on the outside of a front end bearing, and the front end bearing is installed on the driving motor shell.
8. The sand prevention device of a drive motor of a new energy bus, according to claim 7, characterized in that, One end of the convex mud bottom plate is provided with a second circular protrusion.
9. The sand prevention device of a drive motor of a new energy bus, according to claim 8, characterized in that, The second circular protrusion is located in the circular groove on the concave mud ring.
10. The sand prevention device of a drive motor of a new energy bus, according to claim 9, characterized in that, The front end bearing is sleeved on a motor output shaft, and one end of the motor output shaft is provided with an output flange plate.