Bearing seat and main cone assembly
By improving the oil channel structure and increasing the width of the joint surface, the problems of oil leakage and uneven wall thickness of the existing STR bearing seats have been solved, and the weight reduction of parts and the basic elimination of oil leakage has been achieved.
Patent Information
- Application Number
- CN202422463371.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-10-11
AI Technical Summary
Due to the unreasonable design of the oil channel structure of the existing STR bearing seats, the joint surface and the reduction shell joint surface are oil leakage, and the wall thickness of the parts is uneven, the castings are too heavy, resulting in shrinkage and oil leakage.
By changing the size and structure of the oil passage, the width of the seat joint surface and the reduced shell joint surface are increased, the wall thickness of the parts is uniform, and the weight of the parts is reduced. A bearing seat including a cylindrical body, a cavity, an upper partition, a lower partition, a first oil passage and a second oil passage are designed.
The oil leakage phenomenon is basically eliminated, the weight of the parts is reduced, the wall thickness uniformity is improved, and the oil leakage phenomenon is reduced from the original 5% to 0.1%.
Smart Images
Figure CN223035542U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automotive parts, and more specifically, to a bearing seat and a main cone assembly. Background Art
[0002] In the existing STR bearing seat, due to the unreasonable design of the oil passage structure and the too small contact surface on the outer side of the bearing seat oil passage, there is an oil leakage phenomenon between the joint surface and the joint surface of the reduction housing, which cannot be eliminated even by applying glue and adding paper gaskets. In addition, the wall thickness of the existing STR bearing seat parts is uneven, the casting is too heavy, and shrinkage porosity occurs, which will also cause oil leakage of the parts. Summary of the Utility Model
[0003] Aiming at the defects existing in the prior art, the purpose of the utility model is to provide a bearing seat and a main cone assembly, which change the size and structure of the oil passage, increase the width of the joint surface between the bearing seat and the reduction housing, ensure the uniform wall thickness of the parts, reduce the weight of the parts, and basically eliminate the oil leakage phenomenon.
[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a bearing seat, including a cylindrical body, and the body is provided with a cavity adapted to the main cone. Upper and lower partitions are spaced on the inner side wall of the cavity. The upper and lower partitions divide the cavity into an upper chamber, a middle chamber and a lower chamber from top to bottom, and through holes for the main cone to pass through are provided on both the upper and lower partitions; the lower edge of the body bends outward to form a flanging part, and a first oil passage and a second oil passage are provided in the body; the upper end of the first oil passage communicates with the middle chamber, and the lower end of the first oil passage extends obliquely outward to the flanging part and communicates with the outside; the upper end of the second oil passage communicates with the upper chamber, and the lower end of the second oil passage extends obliquely outward to the flanging part and communicates with the outside.
[0005] Further improvement lies in that: the inner diameters of the first oil passage and the second oil passage are 14 mm, the inclination angle is 70 degrees, and the wall thickness of the oil passage is 7 mm.
[0006] Further improvement lies in that: the upper chamber is provided with a first limiting step adapted to the front bearing, and the lower chamber is provided with a second limiting step adapted to the rear bearing.
[0007] Further improvement lies in that: a convex ring is provided on the bottom surface of the flanging part, the lower end opening of the first oil passage is located outside the convex ring, and the lower end opening of the second oil passage is located inside the convex ring.
[0008] Further improvement lies in that: a plurality of mounting holes are provided on the flanging part.
[0009] Further improvement lies in that: a plurality of reinforcing ribs are provided between the flanging part and the outer side wall of the body.
[0010] A further improvement lies in that: an avoidance notch is provided on one side of the flanging portion.
[0011] A further improvement lies in that: the first oil passage and the second oil passage are arranged oppositely.
[0012] The utility model discloses a main cone assembly, which comprises a main cone, a front bearing and a rear bearing, and further comprises the bearing seat as described above. The front bearing is installed in the upper cavity, the rear bearing is installed in the lower cavity, and the main cone penetrates through the cavity and is respectively connected with the front bearing and the rear bearing.
[0013] A further improvement lies in that: a limiting flange is further included. The limiting flange is installed at the upper end of the main cone through a locking nut, and the lower end of the limiting flange extends into the upper cavity and abuts against the front bearing; an oil seal is arranged at the connection between the limiting flange and the bearing seat.
[0014] The beneficial effect of the utility model lies in that:
[0015] By changing the size and structure of the oil passage, the utility model increases the width of the bearing seat joint surface and the reducer housing joint surface, ensures the uniform wall thickness of the parts, reduces the weight of the parts (the weight of the casting is reduced from the original 16.33 Kg to 15.59 Kg), and basically eliminates the oil leakage phenomenon (the oil leakage phenomenon is reduced from the original 5% to 0.1%). BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic structural view of the bearing seat in an embodiment of the utility model;
[0017] Figure 2 is Figure 1 a turning sectional view taken along the A-A direction in
[0018] Figure 3 is Figure 1 a sectional view taken along the B-B direction in
[0019] Figure 4 is a schematic structural view of the main cone assembly in an embodiment of the utility model.
[0020] REFERENCE MARKS:
[0021] 1 - bearing seat; 101 - body; 102 - cavity; 103 - flanging portion; 104 - convex ring; 105 - upper partition; 106 - lower partition; 107 - upper cavity; 108 - middle cavity; 109 - lower cavity; 110 - first limiting step; 111 - second limiting step; 112 - first oil passage; 113 - second oil passage; 114 - reinforcing rib; 115 - mounting hole; 116 - avoidance notch; 2 - main cone; 3 - front bearing; 4 - rear bearing; 5 - limiting flange; 51 - locking nut; 52 - oil seal. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0022] Embodiments of the present utility model will be described in detail below. The illustrated embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout.
[0023] In the description of the present utility model, it should be noted that for orientation terms, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the indicated orientation and positional relationships are based on the orientation or positional relationships shown in the accompanying drawings. This is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present utility model.
[0024] In addition, such terms as "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of technical features. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meanings of "several" and "a number of" are two or more, unless otherwise specifically and clearly defined.
[0025] In the present utility model, unless otherwise clearly specified and defined, terms such as "assembled", "connected", and "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may also be a mechanical connection; it may be directly connected or connected through an intermediate medium, and it may be that the two elements are internally connected and communicated. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0026] In the utility model, unless otherwise specified and defined, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through other features therebetween. Moreover, the first feature being "above", "below", and "on the upper surface" of the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "above", "below", and "on the lower surface" of the second feature includes the first feature being directly below or obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.
[0027] Combined with the accompanying drawings of the specification, the specific embodiments of the present invention are further described below, making the technical solutions and their beneficial effects of the present invention clearer and more definite. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.
[0028] Referring to Figures 1 to 3 As shown, an embodiment of the present invention provides a bearing seat, including a cylindrical body 101, and the body 101 is provided with a cavity 102 adapted to the main cone. Upper and lower partitions 105 and 106 are spaced apart on the inner side wall of the cavity 102. The upper and lower partitions 105 and 106 divide the cavity 102 into an upper chamber 107, a middle chamber 108, and a lower chamber 109 from top to bottom. Both the upper partition 105 and the lower partition 106 are provided with through holes for the main cone to pass through. Specifically, the upper chamber 107 is provided with a first limiting step 110 adapted to the front bearing 3, and the lower chamber 109 is provided with a second limiting step 111 adapted to the rear bearing 4.
[0029] The lower edge of the body 101 bends outward to form a flanging portion 103. Specifically, a convex ring 104 is provided on the bottom surface of the flanging portion 103. The lower end opening of the first oil passage 112 is located outside the convex ring 104, and the lower end opening of the second oil passage 113 is located inside the convex ring 104. The flanging portion 103 is provided with a plurality of mounting holes 115. A plurality of reinforcing ribs 114 are provided between the flanging portion 103 and the outer side wall of the body 101. One side of the flanging portion 103 is provided with an avoidance notch 116.
[0030] A first oil passage 112 and a second oil passage 113 are provided in the body 101. Specifically, the first oil passage 112 and the second oil passage 113 are arranged oppositely. The upper end of the first oil passage 112 communicates with the middle chamber 108, and the lower end of the first oil passage 112 extends obliquely outward to the flanging portion 103 and communicates with the outside. The upper end of the second oil passage 113 communicates with the upper chamber 107, and the lower end of the second oil passage 113 extends obliquely outward to the flanging portion 103 and communicates with the outside. In this embodiment, the inner diameters of the first oil passage 112 and the second oil passage 113 are 14 mm, the inclination angle is 70 degrees, the wall thickness of the oil passage is 7 mm, and the center of the oil passage is 8 mm.
[0031] Referring to Figure 4As shown in the figure, the embodiment of the present utility model further provides a main cone assembly, which includes a main cone 2, a front bearing 3 and a rear bearing 4, and further includes the bearing seat 1 as described above. The front bearing 3 is installed in the upper chamber 107, the rear bearing 4 is installed in the lower chamber 109, and the main cone 2 penetrates through the cavity 102 and is respectively connected to the front bearing 3 and the rear bearing 4. Specifically, it further includes a limit flange 5. The limit flange 5 is installed at the upper end of the main cone 2 through a locking nut 51, and the lower end of the limit flange 5 extends into the upper chamber 107 and abuts against the front bearing 3; an oil seal 52 is provided at the connection between the limit flange 5 and the bearing seat 1.
[0032] In the description of the specification, the description with reference to terms such as "one embodiment", "preferably", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. The schematic expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.
[0033] Through the description of the above structure and principle, those skilled in the art should understand that the present utility model is not limited to the above specific implementation manners. The improvements and substitutions using the well-known technologies in the art on the basis of the present utility model fall within the protection scope of the present utility model, which should be defined by each claim.
Claims
1. A bearing seat, comprising a cylindrical body (101), wherein the body (101) is provided with a cavity (102) adapted to a main cone, characterized in that: The inner side wall of the cavity (102) is separated by an upper partition (105) and a lower partition (106), and the upper partition (105) and the lower partition (106) divide the cavity (102) from top to bottom into an upper chamber (107), a middle chamber (108) and a lower chamber (109), and the upper partition (105) and the lower partition (106) are both provided with a through hole for the main cone to pass through; the lower end edge of the body (101) is bent outward to form a flange portion (103 ), and a first oil passage (112) and a second oil passage (113) are provided in the body (101); the upper end of the first oil passage (112) is connected to the middle chamber (108), and the lower end of the first oil passage (112) extends outwardly at an angle to the flange portion (103) and is connected to the outside; the upper end of the second oil passage (113) is connected to the upper chamber (107), and the lower end of the second oil passage (113) extends outwardly at an angle to the flange portion (103) and is connected to the outside.
2. The bearing seat according to claim 1, characterized in that: The inner diameter of the first oil channel (112) and the second oil channel (113) is 14 mm, the inclination angle is 70 degrees, and the wall thickness of the oil channel is 7 mm.
3. The bearing seat according to claim 1, characterized in that: The upper chamber (107) is provided with a first limiting step (110) adapted to the front bearing (3), and the lower chamber (109) is provided with a second limiting step (111) adapted to the rear bearing (4).
4. The bearing seat according to claim 1, characterized in that: A convex ring (104) is provided on the bottom surface of the flange portion (103), the lower end opening of the first oil passage (112) is located outside the convex ring (104), and the lower end opening of the second oil passage (113) is located inside the convex ring (104).
5. The bearing seat according to claim 1, characterized in that: The flange portion (103) is provided with a plurality of mounting holes (115).
6. The bearing seat according to claim 1, characterized in that: A plurality of reinforcing ribs (114) are provided between the flange portion (103) and the outer side wall of the main body (101).
7. The bearing seat according to claim 1, characterized in that: A relief notch (116) is provided on one side of the flange portion (103).
8. The bearing seat according to claim 1, characterized in that: The first oil passage (112) and the second oil passage (113) are arranged opposite to each other.
9. A main cone assembly, comprising a main cone (2), a front bearing (3) and a rear bearing (4), characterized in that: It also includes a bearing seat (1) as described in any one of claims 1 to 8, the front bearing (3) is installed in the upper chamber (107), the rear bearing (4) is installed in the lower chamber (109), and the main cone (2) passes through the cavity (102) and is respectively connected to the front bearing (3) and the rear bearing (4).
10. The main cone assembly according to claim 9, characterized in that: It also includes a limiting flange (5), which is installed on the upper end of the main cone (2) through a locking nut (51), and the lower end of the limiting flange (5) extends to the upper chamber (107) and abuts against the front bearing (3); an oil seal (52) is provided at the connection between the limiting flange (5) and the bearing seat (1).