Axle upper reaction rod connecting structure, air suspension system and vehicle

Abstract

The utility model relates to the technical field of vehicle axles, and particularly discloses an axle upper reaction rod connecting structure, an air suspension system and a vehicle, and the axle upper reaction rod connecting structure comprises an upper reaction rod connecting frame, a first connecting structure and a second connecting structure. The upper reaction rod connecting frame, the first connecting structure and the second connecting structure are of an integrated structure. By means of the arrangement, the overall size of the upper reaction rod connecting frame can be increased, and the structural strength and reliability of the upper reaction rod connecting frame are improved; meanwhile, the contact area with the axle housing can be increased, the welding length of the axle housing and the upper reaction rod connecting frame is increased, and then the welding strength is improved; compared with a split type support in the prior art, the welding positioning precision is higher, the connecting strength is higher, and the problems that in the prior art, the connecting strength of the X-shaped upper reaction rod and the axle housing is low, and the failure risk is prone to occurring in the long-time driving process are effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle axle technical field especially relates to a vehicle axle upper reaction rod connecting structure, air suspension system and vehicle. BACKGROUND

[0002] Vehicle axle is connected with frame through suspension system, and the both ends are installed wheel, and the function of vehicle axle is to bear the load of car and maintain normal driving on the road, wherein, in X upper reaction rod air suspension system, X upper reaction rod has two structures to be connected with axle housing through support, because the stress of X upper reaction rod is complex, when being connected with axle housing, the form of split support is usually used in prior art to connect, and the connection contact area is small when being connected with axle, which leads to low connection strength, and the risk of failure in long time driving process. SUMMARY

[0003] The utility model discloses a vehicle axle upper reaction rod connecting structure, air suspension system and vehicle to solve the problem of low connection strength of X upper reaction rod and axle housing in prior art, and the risk of failure in long time driving process.

[0004] In one aspect, the utility model provides a vehicle axle upper reaction rod connecting structure, which comprises: an upper reaction rod connecting frame, the bottom of the upper reaction rod connecting frame can be connected with the axle housing;First connecting structure is connected with the top of the upper reaction rod connecting frame, and is located on one side of the upper reaction rod connecting frame, and the first connecting structure can be connected with the first ball head of the upper reaction rod;Second connecting structure is connected with the top of the upper reaction rod connecting frame, and is located on the other side of the upper reaction rod connecting frame, and the first connecting structure can be connected with the second ball head of the upper reaction rod;Wherein, the upper reaction rod connecting frame, the first connecting structure and the second connecting structure are integrated structure.

[0005] As an optional technical scheme of the vehicle axle upper reaction rod connecting structure, the first connecting structure comprises a first connecting block and a second connecting block, the first connecting block and the second connecting block are arranged at the top of the upper reaction rod connecting frame, and the vehicle axle upper reaction rod connecting structure further comprises a first fastener and a second fastener, the first connecting block is connected with one end of the first ball head through the first fastener, and the second connecting block is connected with the other end of the first ball head through the second fastener.

[0006] As an optional technical solution for the reaction rod connection structure on the axle, the first fastener includes a first stud bolt and a first nut, the second fastener includes a second stud bolt and a second nut, the first connecting block has a first assembly hole, the second connecting block has a second assembly hole, one end of the first stud bolt passes through one end of the first ball head and is threadedly connected to the first assembly hole, the first nut and the other end of the first stud bolt are threadedly connected and abut against the end face of one end of the first ball head, one end of the second stud bolt passes through the other end of the first ball head and is threadedly connected to the second assembly hole, the second nut and the other end of the second stud bolt are threadedly connected and abut against the end face of the other end of the first ball head.

[0007] As an optional technical solution for the reaction rod connection structure on the axle, the second connection structure includes a third connection block and a fourth connection block, and the third connection block and the fourth connection block are arranged at intervals on the top of the upper reaction rod connecting frame. The reaction rod connection structure on the axle also includes a third fastener and a fourth fastener. The third connection block is connected to one end of the second ball head through the third fastener, and the fourth connection block is connected to the other end of the second ball head through the fourth fastener.

[0008] As an optional technical solution for the upper reaction rod connection structure of the vehicle axle, the bottom of the upper reaction rod connecting frame has a mating surface, and the axle housing has a connecting surface. The shape of the mating surface matches the shape of the connecting surface, and the mating surface and the connecting surface are connected.

[0009] As an optional technical solution for the reaction rod connection structure on the axle, the shape of the mating surface is arc-shaped.

[0010] As an optional technical solution for the upper reaction rod connection structure of the axle, the upper reaction rod connection frame includes a main frame, a first chamfered structure and a second chamfered structure. The first chamfered structure and the second chamfered structure are respectively arranged on both sides of the bottom of the main frame, and the first chamfered structure and the second chamfered structure are both connected to the axle housing.

[0011] As an optional technical solution for the upper reaction rod connection structure of the axle, the interior of the upper reaction rod connection frame is a hollow structure.

[0012] On the other hand, the utility model provides an air suspension system, including an axle housing, an upper reaction rod and an axle upper reaction rod connecting structure in any of the above-mentioned schemes, the axle housing and the bottom of the upper reaction rod connecting frame of the axle upper reaction rod connecting structure are welded, the upper reaction rod has a first ball head and a second ball head, the first connecting structure is connected to the first ball head, and the second connecting structure is connected to the second ball head.

[0013] On the other hand, the present invention provides a vehicle, comprising a vehicle body and the air suspension system of the above solution, wherein the air suspension system is installed on the vehicle body.

[0014] The utility model discloses a beneficial effect is:

[0015] The utility model provides a car bridge upper reaction rod connecting structure, this car bridge upper reaction rod connecting structure includes upper reaction rod connecting frame, first connecting structure and second connecting structure. Among them, upper reaction rod connecting frame, first connecting structure and second connecting structure are integral type structure. The car bridge upper reaction rod connecting structure of the utility model adopts, and upper reaction rod connecting frame, first connecting structure and second connecting structure are set to integral type structure, and set up like this, can increase the overall volume of upper reaction rod connecting frame, i. e. improve the structural strength and reliability of upper reaction rod connecting frame itself, simultaneously, can also increase the contact area with car bridge axle housing, when the connecting mode of car bridge axle housing and upper reaction rod connecting frame is welding, lengthen the welding length of car bridge axle housing and upper reaction rod connecting frame, and then improve the welding strength, and in the welding process, the integral type car bridge upper reaction rod connecting structure of the utility model is higher than the welding positioning accuracy of split type support in prior art, and the connecting strength is stronger, effectively solve the problem that the connecting strength of X shape upper reaction rod and car bridge axle housing is low in prior art, and the failure risk in long -time driving process appears easily. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is structure schematic diagram of car bridge upper reaction rod connecting structure in the utility model embodiment;

[0017] Figure 2 It is structure schematic diagram of car bridge upper reaction rod connecting structure in another angle in the utility model embodiment;

[0018] Figure 3 It is schematic diagram when car bridge upper reaction rod connecting structure, car bridge axle housing and upper reaction rod are installed in the utility model embodiment;

[0019] Figure 4 It is structure schematic diagram of upper reaction rod in the utility model embodiment;

[0020] Figure 5 It is structure schematic diagram of car bridge axle housing in the utility model embodiment.

[0021] In the drawing:

[0022] 1, upper reaction rod connecting frame;11, cooperation face;12, main frame body;13, first chamfer structure;14, second chamfer structure;15, hollow structure;

[0023] 2, first connecting structure;21, first connecting block;211, first assembly hole;22, second connecting block;221, second assembly hole;

[0024] 3. Second connection structure; 31. Third connection block; 32. Fourth connection block;

[0025] 41. First fastener; 411. First stud bolt; 412. First nut; 42. Second fastener; 421. Second stud bolt; 422. Second nut; 43. Third fastener; 44. Fourth fastener;

[0026] 5. Axle housing; 51. Connection surface;

[0027] 6. Upper reaction rod; 61. First ball head; 62. Second ball head. DETAILED DESCRIPTION

[0028] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a specific position, be constructed and operated in a specific position, and therefore should not be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0030] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0031] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0032] like Figures 1 to 2 As shown, this embodiment provides an upper reaction rod connection structure for an axle, which includes an upper reaction rod connection frame 1, a first connection structure 2, and a second connection structure 3. The bottom of the upper reaction rod connection frame 1 can be connected to the axle housing 5; the first connection structure 2 is connected to the top of the upper reaction rod connection frame 1 and is located on one side of the upper reaction rod connection frame 1, and the first connection structure 2 can be connected to the first ball head 61 of the upper reaction rod 6; the second connection structure 3 is connected to the top of the upper reaction rod connection frame 1 and is located on the other side of the upper reaction rod connection frame 1, and the first connection structure 2 can be connected to the second ball head 62 of the upper reaction rod 6; wherein the upper reaction rod connection frame 1, the first connection structure 2, and the second connection structure 3 are an integrated structure.

[0033] By adopting the axle upper reaction rod connection structure of the present invention, the upper reaction rod connection frame 1, the first connection structure 2 and the second connection structure 3 are arranged into an integrated structure. This arrangement can increase the overall volume of the upper reaction rod connection frame 1, that is, improve the structural strength and reliability of the upper reaction rod connection frame 1 itself; at the same time, it can also increase the contact area with the axle housing 5. When the connection method between the axle housing 5 and the upper reaction rod connection frame 1 is welding, the welding length of the axle housing 5 and the upper reaction rod connection frame 1 is lengthened, thereby improving the welding strength; and in the welding process, the integrated axle upper reaction rod connection structure of the present invention has higher welding positioning accuracy and stronger connection strength than the split bracket in the prior art, which effectively solves the problem that the connection strength between the X-shaped upper reaction rod and the axle housing 5 in the prior art is low, and is prone to failure risk during long-term driving.

[0034] Optionally, the upper reaction rod connecting frame 1, the first connecting structure 2 and the second connecting structure 3 are integrally formed from cast steel material through a casting process.

[0035] In some embodiments, as Figure 1 and Figure 3As shown, the first connection structure 2 includes a first connection block 21 and a second connection block 22. The first connection block 21 and the second connection block 22 are spaced apart and arranged on the top of the upper reaction rod connecting frame 1, and the upper reaction rod connection structure of the vehicle axle also includes a first fastener 41 and a second fastener 42. The first connection block 21 is connected to one end of the first ball head 61 via the first fastener 41, thereby ensuring a reliable connection between the first connection block 21 and one end of the first ball head 61; similarly, the second connection block 22 is connected to the other end of the first ball head 61 via the second fastener 42, thereby ensuring a reliable connection between the second connection block 22 and the other end of the first ball head 61.

[0036] Specifically, the first fastener 41 includes a first stud 411 and a first nut 412, and the second fastener 42 includes a second stud 421 and a second nut 422. The first connecting block 21 has a first assembly hole 211, and the second connecting block 22 has a second assembly hole 221. One end of the first stud 411 is passed through one end of the first ball head 61 and threadedly connected to the first assembly hole 211. The first nut 412 is threadedly connected to the other end of the first stud 411 and abuts against the end surface of one end of the first ball head 61. This arrangement allows the first connecting block 21 and one end of the first ball head 61 to be connected via the first stud 411, ensuring that the connection strength meets predetermined requirements. Similarly, one end of the second stud 421 is passed through the other end of the first ball head 61 and threadedly connected to the second assembly hole 221. The second nut 422 is threadedly connected to the other end of the second stud 421 and abuts against the end surface of the other end of the first ball head 61. In this way, the second connecting block 22 and the other end of the first ball head 61 can be connected by the second stud bolt 421, and the connection strength can be guaranteed to meet the predetermined requirements. The bolt and nut connection method is convenient for installation and disassembly.

[0037] In this embodiment, second connecting structure 3 includes a third connecting block 31 and a fourth connecting block 32. Third connecting block 31 and fourth connecting block 32 are spaced apart and arranged on top of upper reaction rod connecting frame 1. The axle upper reaction rod connecting structure also includes a third fastener 43 and a fourth fastener 44. Third connecting block 31 is connected to one end of second ball stud 62 via third fastener 43, and fourth connecting block 32 is connected to the other end of second ball stud 62 via fourth fastener 44.

[0038] The structure of the third connecting block 31 is the same as that of the first connecting block 21 , and the structure of the second connecting block 22 is the same as that of the fourth connecting block 32 .

[0039] like Figure 2 and Figure 5As shown, the bottom of upper reaction rod connecting frame 1 has a mating surface 11, and axle housing 5 has a connecting surface 51. The shape of mating surface 11 matches the shape of connecting surface 51, ensuring that mating surface 11 and connecting surface 51 are completely aligned, further strengthening the connection strength between upper reaction rod connecting frame 1 and axle housing 5. The connection between upper reaction rod connecting frame 1 and axle housing 5 is welding.

[0040] In this solution, the shape of the mating surface 11 is an arc. Since the connection surface 51 of the axle housing 5 is an arc, in this solution, the shape of the mating surface 11 is set to an arc, which ensures sufficient contact area and increases the welding length.

[0041] Furthermore, the upper reaction rod connecting frame 1 includes a main frame body 12, a first chamfered structure 13, and a second chamfered structure 14. The first chamfered structure 13 and the second chamfered structure 14 are respectively arranged on both sides of the bottom of the main frame body 12, and the first chamfered structure 13 and the second chamfered structure 14 are connected to the axle housing 5. This arrangement can increase the welding space during the welding process of the main frame body 12 and the axle housing 5, increase the weld volume, and thus improve the weld strength.

[0042] In some embodiments, the interior of upper reaction rod connecting frame 1 is a hollow structure 15. This configuration, through the casting manufacturing method, minimizes the weight of upper reaction rod connecting frame 1 itself and reduces the manufacturing cost of upper reaction rod connecting frame 1.

[0043] like Figures 1 to 4 As shown, this embodiment also provides an air suspension system, including an axle housing 5, an upper reaction rod 6 and the axle upper reaction rod connecting structure in the above scheme, the axle housing 5 and the bottom of the upper reaction rod connecting frame 1 of the axle upper reaction rod connecting structure are welded, the upper reaction rod 6 has a first ball head 61 and a second ball head 62, the first connecting structure 2 is connected to the first ball head 61, and the second connecting structure 3 is connected to the second ball head 62.

[0044] This embodiment further provides a vehicle, comprising a vehicle body and the air suspension system of the above-mentioned scheme, wherein the air suspension system is installed on the vehicle body. In the vehicle using the present invention, the upper reaction rod connecting frame 1, the first connecting structure 2, and the second connecting structure 3 are configured as an integrated structure. This configuration can increase the overall volume of the upper reaction rod connecting frame 1, that is, improve the structural strength and reliability of the upper reaction rod connecting frame 1 itself; at the same time, it can also increase the contact area with the axle housing 5. When the axle housing 5 and the upper reaction rod connecting frame 1 are connected by welding, the welding length of the axle housing 5 and the upper reaction rod connecting frame 1 is lengthened, thereby improving the welding strength; and during the welding process, the integrated axle upper reaction rod connection structure of the present invention has higher welding positioning accuracy and stronger connection strength than the split bracket in the prior art, effectively solving the problem of low connection strength between the X-shaped upper reaction rod and the axle housing 5 in the prior art, which is prone to failure risk during long-term driving.

[0045] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A reaction rod connection structure on an axle, characterized in that: include: An upper reaction rod connecting frame (1), the bottom of which can be connected to an axle housing (5); A first connecting structure (2) is connected to the top of the upper reaction rod connecting frame (1) and is located on one side of the upper reaction rod connecting frame (1), and the first connecting structure (2) can be connected to the first ball head (61) of the upper reaction rod (6); A second connecting structure (3) is connected to the top of the upper reaction rod connecting frame (1) and is located on the other side of the upper reaction rod connecting frame (1), and the first connecting structure (2) is capable of connecting to the second ball head (62) of the upper reaction rod (6); Wherein, the upper reaction rod connecting frame (1), the first connecting structure (2) and the second connecting structure (3) are an integrated structure.

2. The axle upper reaction rod connection structure according to claim 1, characterized in that: The first connection structure (2) comprises a first connection block (21) and a second connection block (22), wherein the first connection block (21) and the second connection block (22) are arranged at intervals on the top of the upper reaction rod connection frame (1), and the upper reaction rod connection structure of the vehicle axle further comprises a first fastener (41) and a second fastener (42), wherein the first connection block (21) is connected to one end of the first ball head (61) via the first fastener (41), and the second connection block (22) is connected to the other end of the first ball head (61) via the second fastener (42).

3. The axle upper reaction rod connection structure according to claim 2, characterized in that: The first fastener (41) includes a first stud bolt (411) and a first nut (412), the second fastener (42) includes a second stud bolt (421) and a second nut (422), the first connecting block (21) has a first assembly hole (211), the second connecting block (22) has a second assembly hole (221), one end of the first stud bolt (411) passes through one end of the first ball head (61) and is threadedly connected to the first assembly hole (211), the first nut (412) is threadedly connected to the other end of the first stud bolt (411) and abuts against the end surface of one end of the first ball head (61), one end of the second stud bolt (421) passes through the other end of the first ball head (61) and is threadedly connected to the second assembly hole (221), the second nut (422) is threadedly connected to the other end of the second stud bolt (421) and abuts against the end surface of the other end of the first ball head (61).

4. The axle upper reaction rod connection structure according to claim 1, characterized in that: The second connection structure (3) includes a third connection block (31) and a fourth connection block (32), and the third connection block (31) and the fourth connection block (32) are arranged at intervals on the top of the upper reaction rod connection frame (1). The axle upper reaction rod connection structure also includes a third fastener (43) and a fourth fastener (44), and the third connection block (31) is connected to one end of the second ball head (62) through the third fastener (43), and the fourth connection block (32) is connected to the other end of the second ball head (62) through the fourth fastener (44).

5. The axle upper reaction rod connection structure according to claim 1, characterized in that: The bottom of the upper reaction rod connecting frame (1) has a mating surface (11), and the axle housing (5) has a connecting surface (51). The shape of the mating surface (11) matches the shape of the connecting surface (51), and the mating surface (11) and the connecting surface (51) are connected.

6. The axle upper reaction rod connection structure according to claim 5, characterized in that: The matching surface (11) is in an arc shape.

7. The axle upper reaction rod connection structure according to claim 1, characterized in that: The upper reaction rod connecting frame (1) comprises a main frame body (12), a first chamfered structure (13) and a second chamfered structure (14), wherein the first chamfered structure (13) and the second chamfered structure (14) are respectively arranged on both sides of the bottom of the main frame body (12), and the first chamfered structure (13) and the second chamfered structure (14) are both connected to the axle housing (5).

8. The axle upper reaction rod connection structure according to claim 1, characterized in that: The interior of the upper reaction rod connecting frame (1) is a hollow structure (15).

9. An air suspension system, characterized in that: The invention comprises an axle housing (5), an upper reaction rod (6) and an axle upper reaction rod connecting structure according to any one of claims 1 to 8, wherein the axle housing (5) and the bottom of the upper reaction rod connecting frame (1) of the axle upper reaction rod connecting structure are welded, and the upper reaction rod (6) has a first ball head (61) and a second ball head (62), the first connecting structure (2) is connected to the first ball head (61), and the second connecting structure (3) is connected to the second ball head (62).

10. A vehicle, characterized in that: The invention comprises a vehicle body and the air suspension system according to claim 9, wherein the air suspension system is installed on the vehicle body.

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