Transverse push rod bracket for a leaf spring composite air suspension and vehicle

Abstract

The utility model belongs to vehicle technical field discloses a cross push rod support and vehicle for leaf spring composite air suspension, this cross push rod support package support body, connecting assembly, first support rib and second support rib, support body has local plane, two first side and two second side, local plane is contacted with the abdomen of frame, ensures the reliability that cross push rod support and frame abdominal surface cooperate, first connecting seat and second connecting seat of columnar structure, geometric shape casting process is good, is convenient for drawing, second support rib is arc structure, two ends of second support rib are connected in second connecting seat and second side respectively, and second support rib is by first side arc transition to second side, and the second support rib of arc structure makes the reasonable stress of cross push rod support, and the force that the hole of cross push rod transmits to cross push rod support can be along the second support rib of arc structure and be transmitted to the hole position that is connected with frame below, avoids the stress concentration in the root of second connecting seat.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to a pushrod bracket for a leaf spring composite air suspension and a vehicle thereof. Background Technology

[0002] In a leaf spring composite air suspension, a pushrod bracket is necessary, and its function is to connect the pushrod to the vehicle frame.

[0003] The lateral pushrod is primarily connected to the frame via a lateral pushrod bracket, which in turn is bolted to the bracket. During operation, the lateral force transmitted from the pushrod is transferred to the frame. However, when the force from the pushrod's bore to the pushrod bracket is transmitted along the support rib to the frame connection point, stress concentration occurs at the root of the bracket's connector, resulting in uneven stress distribution on the pushrod bracket.

[0004] Therefore, there is an urgent need for a pushrod bracket and vehicle for leaf spring composite air suspension to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a pushrod bracket for a leaf spring composite air suspension. The force transmitted from the hole of the pushrod to the pushrod bracket can be transmitted along the second support rib of the arc-shaped structure to the hole below that connects to the vehicle frame, thus avoiding stress concentration and making the force on the pushrod bracket reasonable.

[0006] To address the aforementioned problems in the existing technology, this utility model adopts the following technical solution:

[0007] The pushrod bracket for a leaf spring composite air suspension includes:

[0008] The bracket body has a partial plane, two first sides and two second sides, and the partial plane is in contact with the belly of the frame;

[0009] The connecting assembly includes a first connecting seat and a second connecting seat in a columnar structure, wherein the first connecting seat and the second connecting seat are respectively disposed on the two first sides;

[0010] The first support rib is a straight strip structure and is disposed on the first side. The first support rib has a first end and a second end. The first end of the first support rib is connected to the first connecting seat, and the second end of the first support rib is connected to the junction of the first side and the second side.

[0011] The second support rib has an arc-shaped structure. The two ends of the second support rib are respectively connected to the second connecting seat and the second side, and the second support rib transitions from the first side to the second side in an arc shape.

[0012] Preferably, the second support rib has a first end and a second end. The first end of the second support rib is connected to the second connecting seat, and the second end of the second support rib is connected to the second side. The longitudinal cross-sectional area of ​​the second support rib gradually decreases from the first end to the second end of the second support rib in the extending direction.

[0013] Preferably, the bracket body has a first mounting hole, which is located on the second side near the second end of the second support rib.

[0014] Preferably, the bracket body is further provided with a second mounting hole, which is located at the junction of the first side and the second side, and is adjacent to the second end of the first support rib.

[0015] Preferably, the system further includes a third support rib, which is disposed on the first side. The third support rib has a first end and a second end. The first end of the third support rib is connected to the second connecting seat, and the second end of the third support rib is connected to the junction of the first side and the second side.

[0016] Preferably, the bracket body is further provided with a third mounting hole, which is located at the junction of the first side and the second side, and is adjacent to the second end of the third support rib.

[0017] Preferably, the third mounting hole is configured as an internally threaded hole.

[0018] Preferably, both the first connecting seat and the second connecting seat are provided with connecting holes, and the connecting holes are configured as internal threaded holes.

[0019] Preferably, the support body has a weight-reducing hole, which is located at the center of the two first sides and the two second sides that are arranged in a ring shape.

[0020] To achieve the above objectives, the present invention also provides a vehicle, including a push rod, a frame, and the aforementioned push rod bracket, wherein the push rod bracket is used to connect the push rod and the frame.

[0021] The beneficial effects of this utility model are as follows:

[0022] This utility model provides a pushrod bracket for a leaf spring composite air suspension. The bracket body has a partial plane, two first sides, and two second sides. The partial plane contacts the belly of the vehicle frame, avoiding poor contact under large plane contact, resulting in more precise positioning and ensuring reliable mating between the pushrod bracket and the belly of the vehicle frame. The connecting assembly includes a first connecting seat and a second connecting seat with a columnar structure. The geometry is well-cast and easy to demold. The first connecting seat and the second connecting seat are respectively located on the two first sides. The first support rib has a straight strip structure and is located on the first side. The first support rib has a first end and a second end. The first end of the first support rib is connected to the first connecting seat, and the second end of the first support rib is connected to the junction of the first side and the second side. The second support rib has an arc-shaped structure, with both ends connected to the second connecting seat and the second side, respectively. The second support rib transitions from the first side to the second side in an arc shape. The arc-shaped second support rib ensures reasonable stress distribution on the push rod bracket. The force transmitted from the push rod hole to the push rod bracket can be transferred along the arc-shaped second support rib to the hole below that connects to the frame, thus avoiding stress concentration at the root of the second connecting seat.

[0023] The vehicle provided by this utility model includes a lateral push rod, a frame, and a lateral push rod bracket, which connects the lateral push rod to the frame. The limiting bracket and the lateral push rod bracket share a bolt connection to the frame, saving frame work positions and simplifying the layout. The connection with the web surface of the frame uses a partial contact method to ensure reliable mating between the lateral push rod bracket and the web surface of the frame. Attached Figure Description

[0024] Figure 1 An assembly diagram of the push rod bracket, frame, push rod, and limiting bracket provided for an embodiment of this utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the horizontal push rod bracket provided in an embodiment of the present utility model;

[0026] Figure 3 Rear view of the push rod bracket provided in an embodiment of this utility model.

[0027] Figure label:

[0028] 100. Frame; 200. Transverse push rod; 300. Limiting bracket;

[0029] 1. Bracket body; 11. First side; 12. Second side; 13. First mounting hole; 14. Second mounting hole; 15. Third mounting hole;

[0030] 2. First connecting seat;

[0031] 3. Second connecting seat;

[0032] 4. First supporting rib;

[0033] 5. Second supporting rib;

[0034] 6. Third supporting rib;

[0035] 7. Connecting holes;

[0036] 8. Weight reduction hole. Detailed Implementation

[0037] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0038] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0041] In existing technology, the lateral pushrod is mainly connected to the vehicle frame via a lateral pushrod bracket, which in turn is bolted to the bracket. During movement, the lateral force transmitted from the pushrod is transferred to the vehicle frame. However, when the force transmitted from the pushrod's hole to the bracket is transmitted along the support rib to the connection hole in the frame, stress concentration occurs at the root of the bracket's connecting seat, resulting in uneven stress on the pushrod bracket. To address this, this invention provides a lateral pushrod bracket for a leaf spring composite air suspension. The force transmitted from the pushrod's hole to the bracket is transmitted along the second support rib of the arc-shaped structure to the connection hole below, avoiding stress concentration and ensuring a more balanced stress distribution on the pushrod bracket.

[0042] like Figures 1-3 As shown, in this embodiment, the pushrod bracket for the leaf spring composite air suspension includes a bracket body 1, a connecting assembly, a first support rib 4, and a second support rib 5. The bracket body 1 has a partial plane, two first sides 11, and two second sides 12. The partial plane contacts the belly of the vehicle frame. The connecting assembly includes a first connecting seat 2 and a second connecting seat 3, which are columnar in structure. The first connecting seat 2 and the second connecting seat 3 are respectively disposed on the two first sides 11. The first support rib 4 has a straight strip structure and is disposed on the first side 11. The first support rib 4 has a first end and a second end. The first end of the first support rib 4 is connected to the first connecting seat 2, and the second end of the first support rib 4 is connected to the junction of the first side 11 and the second side 12. The second support rib 5 has an arc-shaped structure. The two ends of the second support rib 5 are respectively connected to the second connecting seat 3 and the second side 12, and the second support rib 5 transitions arc-shapedly from the first side 11 to the second side 12.

[0043] The transverse push rod bracket is connected to the web surface of the frame 100 by several bolts, and also to the transverse push rod 200 by several bolts. The limiting bracket 300 is mounted on the transverse push rod bracket, and both the limiting bracket 300 and the transverse push rod bracket share bolts for connection to the frame 100, saving workstation space on the frame 100 and simplifying the layout. The connection with the web surface of the frame 100 uses a partial contact method, which avoids poor contact effects under large-plane contact, resulting in more precise positioning and ensuring the reliability of the fit between the transverse push rod bracket and the web surface of the frame 100. During vehicle operation, the force of the transverse push rod 200 is transmitted to the frame 100.

[0044] The connecting components, first support rib 4, second support rib 5, and bracket body 1 are integrally formed by casting or other methods, simplifying manufacturing. The first connecting seat 2 and second connecting seat 3 have a columnar structure, used to connect the limiting bracket 300, the frame 100, and the transverse push rod 200. Their geometric shape is well-cast and easy to demold. There are two straight-bar structure first support ribs 4, respectively located on both sides of the first connecting seat 2, i.e., symmetrically distributed relative to the first connecting seat 2, resulting in high structural strength. The second support rib 5 has an arc-shaped structure, ensuring reasonable force distribution on the transverse push rod bracket. The force transmitted from the hole in the transverse push rod 200 to the transverse push rod bracket can be transmitted along the arc-shaped second support rib 5 to the hole connecting to the frame 100 below, avoiding stress concentration at the root of the second connecting seat 3.

[0045] Furthermore, referring to Figures 1-3 The second support rib 5 has a first end and a second end. The first end of the second support rib 5 is connected to the second connecting seat 3, and the second end of the second support rib 5 is connected to the second side 12. The longitudinal cross-sectional area of ​​the second support rib 5 gradually decreases from the first end to the second end of the second support rib 5 in the extending direction.

[0046] Support ribs, also known as reinforcing ribs or rib plates, are a crucial and widely used design feature in mechanical structures. Essentially, they are thin-walled protrusions, typically strip-shaped or grid-like, added to a base plate or wall. Their core function is to significantly enhance the overall rigidity, strength, and stability of parts with minimal material increment, effectively resisting bending, torsion, or vibration deformation that may occur under load. The second support rib 5 has an arc-shaped structure, ensuring reasonable force distribution on the push rod bracket. The force transmitted from the hole in the push rod 200 to the push rod bracket can be transferred along the arc-shaped second support rib 5 to the hole below that connects to the frame 100, avoiding stress concentration at the root of the second connecting seat 3. Specifically, the force is transmitted to the hole below that connects to the frame 100 along the extension direction from the first end to the second end of the second support rib 5.

[0047] Furthermore, referring to Figures 1-3 The bracket body 1 has a first mounting hole 13 and a second mounting hole 14. The first mounting hole 13 is located on the second side 12 near the second end of the second support rib 5. The second mounting hole 14 is located at the junction of the first side 11 and the second side 12, and the second mounting hole 14 is adjacent to the second end of the first support rib 4.

[0048] There are two second mounting holes 14. The first mounting hole 13 and the second mounting hole 14 are set as through holes. Several bolts pass through the first mounting hole 13 and the second mounting hole 14 and are fixedly connected to the holes of the frame 100, so that the connection is firm. In addition, the bracket body 1 and the limiting bracket 300 share the above-mentioned mounting holes and the holes of the frame 100, saving holes in the frame 100 and simplifying the layout.

[0049] Furthermore, referring to Figures 1-3 The bracket also includes a third support rib 6, which is disposed on the first side 11. The third support rib 6 has a first end and a second end. The first end of the third support rib 6 is connected to the second connecting seat 3, and the second end of the third support rib 6 is connected to the junction of the first side 11 and the second side 12. The bracket body 1 also has a third mounting hole 15, which is located at the junction of the first side 11 and the second side 12, and is adjacent to the second end of the third support rib 6.

[0050] Integrated casting is an advanced manufacturing process. Its core lies in pouring molten metal (such as aluminum alloy, magnesium alloy, or high-strength cast iron) into a precisely designed mold cavity in a single pour. After cooling and solidification, a single, complex-shaped, and structurally complete part is obtained, completely replacing the cumbersome steps of assembling multiple disparate parts through welding, riveting, or bolting in traditional manufacturing. The significant advantage of this technology is its ability to significantly improve the structural strength and integrity of the product by eliminating potential weak points and stress concentration issues at connection points. Simultaneously, it greatly simplifies the production process, reduces the number of parts and assembly time, facilitating efficient large-scale production and lowering overall costs. The third support rib 6 and the raised third mounting hole 15 are integrally cast, ensuring the structural strength of the second connecting seat 3 and the third mounting hole 15. The third mounting hole 15 is designed with an internal thread structure, using a threaded connection to connect the bracket body 1 to the frame 100, which is simpler than a bolt and nut connection scheme.

[0051] Furthermore, referring to Figures 1-3 Both the first connecting seat 2 and the second connecting seat 3 are provided with connecting holes 7, which are configured as internal threaded holes.

[0052] The line connecting the connecting holes 7 of the first connecting seat 2 and the second connecting seat 3 is set at an angle to the line connecting the holes of the connecting frame 100, so that the force between the horizontal push rod 200 and the horizontal push rod bracket is good.

[0053] Furthermore, referring to Figures 1-3 The support body 1 has a weight reduction hole 8, which is located at the center of the two first sides 11 and the two second sides 12 arranged in a ring shape.

[0054] The weight reduction hole 8 located in the middle of the bracket body 1 reduces the weight of the horizontal push rod bracket to the greatest extent and reduces manufacturing costs.

[0055] This embodiment also provides a vehicle, including a lateral push rod 200, a frame 100, and the aforementioned lateral push rod bracket. The lateral push rod bracket connects the lateral push rod 200 and the frame 100. The lateral push rod bracket is connected to the web surface of the frame 100 by several bolts and to the lateral push rod 200 by several bolts. A limiting bracket 300 is mounted on the lateral push rod bracket, and the limiting bracket 300 and the lateral push rod bracket share bolts for connection to the frame 100, saving space on the frame 100 and simplifying the layout. The connection with the web surface of the frame 100 uses a partial contact method to ensure the reliability of the fit between the lateral push rod bracket and the web surface of the frame 100, transmitting the force of the lateral push rod 200 to the frame 100 during vehicle operation.

[0056] The first connecting seat 2 and the second connecting seat 3 of the transverse push rod bracket have a columnar structure and are used to connect the limiting bracket 300, the frame 100, and the transverse push rod 200. Their geometric shape has good casting process and is easy to demold. The second support rib 5 has an arc-shaped structure, which makes the force on the transverse push rod bracket reasonable. The force transmitted from the hole of the transverse push rod 200 to the transverse push rod bracket can be transmitted along the arc-shaped second support rib 5 to the hole below that connects to the frame 100, avoiding stress concentration at the root of the second connecting seat 3.

[0057] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A push rod bracket for a leaf spring composite air suspension, characterized in that, include: The bracket body (1) has a partial plane, two first sides (11) and two second sides (12), and the partial plane is in contact with the belly of the frame; The connecting component includes a first connecting seat (2) and a second connecting seat (3) in the form of a columnar structure, wherein the first connecting seat (2) and the second connecting seat (3) are respectively disposed on the two first side edges (11). The first support rib (4) has a straight strip structure. The first support rib (4) is disposed on the first side (11). The first support rib (4) has a first end and a second end. The first end of the first support rib (4) is connected to the first connecting seat (2). The second end of the first support rib (4) is connected to the junction of the first side (11) and the second side (12). The second support rib (5) has an arc-shaped structure. The two ends of the second support rib (5) are connected to the second connecting seat (3) and the second side (12) respectively. The second support rib (5) transitions from the first side (11) to the second side (12) in an arc shape.

2. The lateral pushrod bracket for a leaf spring composite air suspension according to claim 1, characterized in that, The second support rib (5) has a first end and a second end. The first end of the second support rib (5) is connected to the second connecting seat (3), and the second end of the second support rib (5) is connected to the second side (12). From the first end of the second support rib (5) to the second end of the second support rib (5), the longitudinal cross-sectional area of ​​the second support rib (5) gradually decreases.

3. The pushrod bracket for a leaf spring composite air suspension according to claim 2, characterized in that, The bracket body (1) has a first mounting hole (13), which is located on the second side (12) near the second end of the second support rib (5).

4. The pushrod bracket for a leaf spring composite air suspension according to claim 1, characterized in that, The bracket body (1) is also provided with a second mounting hole (14), which is located at the junction of the first side (11) and the second side (12), and the second mounting hole (14) is adjacent to the second end of the first support rib (4).

5. The pushrod bracket for a leaf spring composite air suspension according to claim 1, characterized in that, It also includes a third support rib (6), which is disposed on the first side (11). The third support rib (6) has a first end and a second end. The first end of the third support rib (6) is connected to the second connecting seat (3), and the second end of the third support rib (6) is connected to the junction of the first side (11) and the second side (12).

6. The pushrod bracket for a leaf spring composite air suspension according to claim 5, characterized in that, The bracket body (1) is also provided with a third mounting hole (15), which is located at the junction of the first side (11) and the second side (12), and the third mounting hole (15) is adjacent to the second end of the third support rib (6).

7. The pushrod bracket for a leaf spring composite air suspension according to claim 6, characterized in that, The third mounting hole (15) is configured as an internal threaded hole.

8. The pushrod bracket for a leaf spring composite air suspension according to claim 1, characterized in that, Both the first connecting seat (2) and the second connecting seat (3) are provided with connecting holes (7), and the connecting holes (7) are configured as internal thread holes.

9. The pushrod bracket for a leaf spring composite air suspension according to claim 1, characterized in that, The support body (1) has a weight reduction hole (8), which is located at the center of the two first sides (11) and the two second sides (12) arranged in a ring structure.

10. A vehicle, characterized in that, It includes a push rod (200), a frame (100), and a push rod bracket as described in any one of claims 1-9, the push rod bracket being used to connect the push rod (200) and the frame (100).

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