An end oil collecting and injection ring for use in oil-cooled motors of non-road machinery vehicles
By introducing a partition rib and a conical injection hole design into the oil collection and injection ring of the oil-cooled motor of non-road machinery vehicles, the problems of uneven flow and insufficient flow velocity are solved, and the flow uniformity and flow velocity are significantly improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LESHENG BOER ELECTRIC (SHANGHAI) CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-05-26
Smart Images
Figure CN224289546U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of end oil collection and injection ring technology, specifically an end oil collection and injection ring applied to the oil-cooled motor of non-road machinery vehicles. Background Technology
[0002] Currently, most off-road machinery vehicles on the market use water-cooled motors, with few using oil-cooled motors. Furthermore, the oil collection and injection rings of these oil-cooled motors cannot evenly distribute the flow rate of the injection holes or increase the flow velocity of the injection holes. This design utilizes partition ribs and conical injection holes to achieve uniform flow distribution and significantly improve the flow velocity of the injection holes. Therefore, there is an urgent need for an end oil collection and injection ring for oil-cooled motors in off-road machinery vehicles to solve the above-mentioned technical problems. Utility Model Content
[0003] The purpose of this invention is to provide an end oil collection and injection ring for an oil-cooled motor in a non-road mechanical vehicle, so as to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] An end oil collecting and spraying ring for use in oil-cooled motors of non-road machinery vehicles includes an end oil collecting and spraying ring body, which is composed of an oil collecting and spraying ring, a radial O-ring seal, and an axial seal.
[0006] The oil collecting and spraying ring has N evenly distributed dividing ribs, which divide the entire ring into N small cavities. Each small cavity has a conical spray hole at the bottom of the ring. The bottom of the oil collecting and spraying ring is designed with a positioning protrusion to prevent the ring from being installed at the wrong angle. A radial O-ring is installed on the oil collecting and spraying ring, and an axial sealing ring on the oil collecting and spraying ring is used to seal the oil collecting and spraying ring and the stator end face. When the end cover is pressed against the oil collecting and spraying ring along the axial direction, the elasticity of the axial sealing ring makes the oil collecting and spraying ring fit tightly against the surface of the motor end cover.
[0007] Preferably, the oil collecting and spraying ring is made of aluminum alloy or plastic.
[0008] Preferably, the value of N is determined by both the motor heat loss and the motor stator diameter.
[0009] Preferably, the injection hole is a tapered hole design, with a larger inlet diameter and a smaller outlet diameter.
[0010] Preferably, the radial O-ring seal is used to seal the oil collection and injection ring and the housing, so that the cooling oil cannot leak from here.
[0011] Preferably, the end oil collecting and spraying ring body has a ring structure.
[0012] Compared with the prior art, the end oil collecting and spraying ring of the present invention applied to the oil-cooled motor of non-road machinery vehicles has the following beneficial effects: The end oil collecting and spraying ring applied to the oil-cooled motor of non-road machinery vehicles can evenly distribute the flow rate of the spraying holes and increase the flow velocity of the spraying holes. This design utilizes the dividing ribs and the conical spraying holes to make the flow rate evenly distributed and greatly increase the flow velocity of the spraying holes. The dividing ribs play a role in evenly distributing the flow rate and the conical spraying holes increase the flow velocity of the spraying holes by more than 30%. Attached Figure Description
[0013] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0014] Figure 1 This is an overall structural diagram of an end oil collecting and injection ring for an oil-cooled motor in a non-road machinery vehicle, according to the present invention.
[0015] Figure 2 A front view of an end oil collection and injection ring for an oil-cooled motor used in off-road machinery vehicles;
[0016] Figure 3 for Figure 2 Sectional view at point BB;
[0017] Figure 4 This is a schematic diagram of the motor end cover structure;
[0018] Figure 5 for Figure 4 Sectional view at point AA;
[0019] Figure 6 for Figure 5 Enlarged view of point C in the middle;
[0020] In the diagram: 1-Radial O-ring seal; 2-Injection hole; 3-Axial seal; 4-Injection ring; 5-Positioning protrusion of injection ring; 6-Stator; 7-Housing; 8-Motor end cover; 9-End injection ring body; 10-Dividing rib. Detailed Implementation
[0021] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. In the embodiments of the present utility model, the different types of cross-sectional lines are not labeled according to national standards, nor do they specify material requirements for the components; they are used to distinguish the cross-sectional views of the components in the drawings.
[0022] Please see Figure 1-6 An end oil collecting and spraying ring for use in an oil-cooled motor of a non-road machinery vehicle includes an end oil collecting and spraying ring body 9, which is composed of an oil collecting and spraying ring 4, a radial O-ring seal 1, and an axial seal 3.
[0023] The oil collecting and spraying ring 4 has N evenly distributed partition ribs 10, which divide the entire ring into N small cavities. Each small cavity has a conical oil spray hole 2 at the bottom of the ring. The bottom of the oil collecting and spraying ring 4 is designed with a positioning protrusion 5 to prevent the ring from being installed at the wrong angle. A radial O-ring seal 1 is installed on the oil collecting and spraying ring 4, and an axial sealing ring 3 is used to seal the oil collecting and spraying ring 4 and the end face of the stator 6. When the end cover 8 presses the oil collecting and spraying ring axially, the elasticity of the axial sealing ring 3 makes the oil collecting and spraying ring 4 fit tightly against the surface of the motor end cover 8.
[0024] Among them, the oil collection and injection ring 4 is made of aluminum alloy or plastic.
[0025] The value of N is determined by both the motor's heat loss and the motor's stator diameter.
[0026] Among them, the oil injection hole 2 is a tapered hole design, and the inlet diameter of the oil injection hole 2 is larger, while the outlet diameter is smaller.
[0027] The radial O-ring 1 is used to seal the oil collection and injection ring 4 and the housing 7, so that the cooling oil cannot leak from here.
[0028] Among them, the end oil collecting and spraying ring body 9 is a ring structure.
[0029] It should be noted that the end oil collection and spraying ring is composed of an aluminum alloy or plastic oil collection and spraying ring 4, a radial O-ring seal 1, and an axial seal 3.
[0030] The oil collecting and spraying ring 4 has N (the value of N is determined by the heat loss of the motor and the diameter of the motor stator) dividing ribs 10 evenly distributed. These dividing ribs 10 divide the entire ring into N small cavities. The bottom of each small cavity is designed with a conical oil spray hole 2. The bottom of the oil collecting and spraying ring 4 is designed with a positioning protrusion 5 to prevent the ring from being installed at the wrong angle.
[0031] When the cooling oil flows axially into the small cavities, the presence of the partition ribs 10 confines the oil within each cavity, preventing it from accumulating at the bottom due to gravity. This ensures that each cavity receives the same amount of cooling oil, achieving uniform flow distribution. Furthermore, the spray nozzle 2 features a tapered design with a larger inlet diameter and a smaller outlet diameter. Since cooling oil is an incompressible fluid, the flow rate remains constant. As the oil flows from the larger orifice to the smaller outlet, the cross-sectional area decreases, increasing the flow velocity. The radial O-ring 1 on the oil collection and spray ring 4 seals the oil collection and spray ring 4 against the housing 7, preventing leakage of cooling oil. The axial sealing ring 3 on the oil collection and spray ring 4 seals the oil collection and spray ring 4 against the stator 6 end face. When the motor end cover 8 presses the oil collection and spray ring 4 axially, the elasticity of the axial sealing ring 3 ensures that the oil collection and spray ring 4 remains tightly against the surface of the motor end cover 8.
[0032] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0033] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.
Claims
1. An end oil collecting and injection ring for an oil-cooled motor in a non-road machinery vehicle, comprising an end oil collecting and injection ring body (9), characterized in that: The end oil collecting and spraying ring body (9) is composed of an oil collecting and spraying ring (4), a radial O-ring seal (1), and an axial seal (3); The oil collecting and spraying ring (4) has N dividing ribs (10) evenly distributed. The dividing ribs (10) divide the entire ring into N small cavities. Each small cavity has a conical spray hole (2) at the bottom of the ring. The bottom of the oil collecting and spraying ring (4) is designed with a positioning protrusion (5) to prevent the ring from being installed at the wrong angle. A radial O-ring seal (1) is installed on the oil collecting and spraying ring (4). An axial sealing ring (3) on the oil collecting and spraying ring (4) is used to seal the oil collecting and spraying ring (4) and the end face of the stator (6). When the end cover (8) presses the oil collecting and spraying ring along the axial direction, the elasticity of the axial sealing ring (3) makes the oil collecting and spraying ring (4) fit tightly against the surface of the motor end cover (8).
2. The end oil collecting and spraying ring for an oil-cooled motor in a non-road machinery vehicle according to claim 1, characterized in that: The oil collecting and spraying ring (4) is made of aluminum alloy or plastic.
3. The end oil collecting and spraying ring for an oil-cooled motor in a non-road machinery vehicle according to claim 1, characterized in that: The value of N is determined by both the motor's heat loss and the motor's stator diameter.
4. The end oil collecting and spraying ring for an oil-cooled motor in a non-road machinery vehicle according to claim 1, characterized in that: The oil injection hole (2) is designed as a tapered hole, and the inlet diameter of the oil injection hole (2) is larger than the outlet diameter.
5. The end oil collecting and spraying ring for an oil-cooled motor in a non-road machinery vehicle according to claim 1, characterized in that: The radial O-ring (1) is used to seal the oil collection and spraying ring (4) and the housing (7) so that the cooling oil cannot leak from here.
6. The end oil collecting and spraying ring for an oil-cooled motor in a non-road machinery vehicle according to claim 1, characterized in that: The end oil collecting and spraying ring body (9) has a ring structure.