Vehicle transverse pull rod structure and vehicle

Abstract

The utility model discloses a vehicle transverse pull rod structure and a vehicle, and the vehicle transverse pull rod structure comprises a front axle housing, a steering knuckle left arm, a steering knuckle right arm and a transverse pull rod; the left knuckle arm and the right knuckle arm are symmetrically hinged to the two ends of the front axle housing in the length direction and used for driving the front left wheel and the front right wheel to swing correspondingly. The two ends of the tie rod are rotationally connected to the left knuckle arm and the right knuckle arm through a knuckle bearing structure respectively, so that the left knuckle arm and the right knuckle arm can synchronously swing relative to the front axle housing. The knuckle bearing structure is mainly adopted to replace a traditional ball pin to connect the front axle housing, the left knuckle arm and the right knuckle arm, stress of the knuckle bearing structure is uniform, loss increase caused by too large stress on one side of the knuckle bearing structure is avoided, the service life of the knuckle bearing structure is long, and the service life of the knuckle bearing structure is prolonged. The overall service life of the transverse pull rod structure is prolonged, and the maintenance cost of the transverse pull rod structure is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle front axle structures, in particular to a vehicle transverse tie rod structure and a vehicle. Background Art

[0002] The front axle of a vehicle is a component connected to the frame. It is used to mount the front wheels and cooperate with other power components to drive the front wheels to swing to achieve vehicle steering.

[0003] Reference Figure 1 and Figure 2 At present, the front axle of a vehicle generally includes a front bridge 100, a left steering knuckle 101, a right steering knuckle 102, a cross bar 103 and two hydraulic power components 105. The left steering knuckle 101 and the right steering knuckle 102 are symmetrically arranged at the two ends of the front bridge 100, and the two ends of the cross bar 103 are hinged to the left steering knuckle 101 and the right steering knuckle 102 through a ball pin structure 104, so that the left steering knuckle 101 and the right steering knuckle 102 can swing synchronously. The left steering knuckle 101 and the right steering knuckle 102 are also connected to the front bridge 100 through a hydraulic power component 105 respectively. The hydraulic power component 105 pushes the left steering knuckle 101 and the right steering knuckle 102 to rotate relative to the front bridge 100, thereby driving the two front wheels to swing and realizing the steering of the vehicle.

[0004] In the complex environment of the mine, the road surface is basically uneven, which causes the heights of the two ends of the front axle of the vehicle to be inconsistent. For example, when the height difference between the two ends of the front axle of the vehicle reaches 15mm, the vehicle suddenly turns. At this time, the steering forces at both ends of the crossbar 103 are not in the same plane, which causes the ball pin structure 104 to be unevenly stressed and worn. The ball pin structure 104 is a non-standard part. After the head of the ball pin structure 104 is worn, the ball pin structure 104 needs to be re-customized, and the maintenance cost is high. In summary, the prior art has the technical problems that the crossbar is easily damaged and the maintenance cost is high. Utility Model Content

[0005] In view of the technical problems in the prior art that the cross bar is easily damaged and has high maintenance costs, the purpose of the utility model is to provide a vehicle transverse tie rod structure and a vehicle.

[0006] The technical solution to achieve the purpose of the utility model is:

[0007] A vehicle lateral tie rod structure comprises a front axle housing, a left steering knuckle arm, a right steering knuckle arm and a lateral tie rod; the left steering knuckle arm and the right steering knuckle arm are symmetrically hinged at two ends of the front axle housing in the length direction, and are used to drive the front left wheel and the front right wheel to swing respectively;

[0008] The two ends of the tie rod are rotatably connected to the left steering knuckle arm and the right steering knuckle arm through a joint bearing structure, so that the left steering knuckle arm and the right steering knuckle arm can swing synchronously relative to the front axle housing.

[0009] In one embodiment, both the left arm and the right arm of the steering knuckle are provided with assembly holes; the joint bearing structure is assembled in the assembly hole; both ends of the transverse tie rod are provided with connecting heads, and the connecting heads include two connecting plates arranged at intervals; the joint bearing structure is located between the two connecting plates of the corresponding connecting heads and is connected to the two connecting plates.

[0010] In one embodiment, the spherical bearing structure includes an outer ring assembled in the assembly hole and an inner ring matched with the outer ring; the inner ring is connected to the connecting plate.

[0011] In one embodiment, the spherical bearing structure further includes a pin shaft inserted in the inner ring; the inner ring is connected to the connecting plate via the pin shaft.

[0012] In one embodiment, the inner wall of the assembly hole is provided with an annular boss and an annular groove spaced apart in the axial direction of the assembly hole, the annular groove is equipped with an annular retaining ring, the outer ring is located between the annular boss and the annular retaining ring, and abuts against the annular boss and the annular retaining ring, and the annular boss and the annular retaining ring are used to limit the outer ring from moving axially along the assembly hole.

[0013] In one embodiment, the tie rod at least includes a first tie rod and a second tie rod sequentially arranged along the axial direction of the tie rod, the first tie rod and the second tie rod are parallel, and the first tie rod is threadedly connected to the second tie rod.

[0014] In one embodiment, one of the two connectors is threadedly connected to an end of the first pull rod away from the second pull rod, and the other is threadedly connected to an end of the second pull rod away from the first pull rod.

[0015] In one embodiment, the connector further comprises a connecting end, an outer wall of which is provided with a first external thread; a first threaded hole is provided at one end of the first pull rod facing away from the second pull rod, and a second external thread is provided at one end of the first pull rod facing the second pull rod; a second threaded hole is provided at one end of the second pull rod facing the first pull rod; and a third threaded hole is provided at one end of the second pull rod facing away from the first pull rod;

[0016] Among the two connectors, the connection end of one is inserted into the first threaded hole, and the first external thread of the outer wall is threadedly connected to the first threaded hole, and the connection end of the other is inserted into the third threaded hole, and the first external thread of the outer wall is threadedly connected to the third threaded hole;

[0017] One end of the first pull rod facing the second pull rod is plugged into the second threaded hole, and the second external thread of the outer wall of the first pull rod is threadedly connected with the second threaded hole.

[0018] In one embodiment, the first external thread threadedly connected to the first threaded hole is a positive thread, the first external thread threadedly connected to the third threaded hole is a negative thread; and the second external thread is a positive thread.

[0019] A vehicle comprises the above-mentioned vehicle transverse tie rod structure.

[0020] The beneficial effects of the utility model are as follows: the application mainly adopts a joint bearing structure to replace the traditional ball pin to connect the front axle housing, the left arm of the steering knuckle and the right arm of the steering knuckle. The joint bearing structure can realize multi-directional rotation and uniform force, avoiding the joint bearing structure from being damaged due to excessive force on one side, which makes the service life of the joint bearing structure longer and the service life of the entire transverse tie rod structure is also improved. In addition, the joint bearing is a standard part, which can be directly purchased and replaced without customization, thereby reducing the maintenance cost of the transverse tie rod structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of a vehicle front axle in the prior art;

[0022] Figure 2 It is a structural schematic diagram of a crossbar in the prior art;

[0023] Figure 3 A schematic structural diagram of a front axle of a vehicle according to an embodiment of the utility model;

[0024] Figure 4 A schematic diagram of the combined structure of a vehicle front axle according to an embodiment of the utility model;

[0025] Figure 5 A schematic structural diagram of a spherical bearing structure according to an embodiment of the utility model;

[0026] Figure 6 This is a schematic structural diagram of a tie rod according to an embodiment of the utility model;

[0027] Figure 7 It is a schematic structural diagram of the second pull rod and the connecting head according to an embodiment of the utility model.

[0028] Note in the figure:

[0029] 10. Front axle housing;

[0030] 20, tie rod; 201, first tie rod; 202, second tie rod; 203, connector; 2031, connecting plate; 2032, connecting end; 31, left steering knuckle arm; 32, right steering knuckle arm; 321, annular boss;

[0031] 40. Spherical bearing structure; 401. Outer ring; 402. Inner ring; 403. Annular retaining ring;

[0032] 60. Fastening structure;

[0033] 100. Front bridge; 101. Left steering knuckle; 102. Right steering knuckle; 103. Crossbar; 104. Ball pin structure; 105. Hydraulic power component. DETAILED DESCRIPTION

[0034] The present invention is further described below in conjunction with the accompanying drawings and specific implementation plans:

[0035] This embodiment discloses a vehicle, which is particularly a wide-body vehicle used for mine transportation, and includes a vehicle transverse tie rod structure. Figure 3-Figure 4 The vehicle lateral tie rod structure of an embodiment includes a front axle housing 10, a left steering knuckle arm 31, a right steering knuckle arm 32 and a tie rod 20; the left steering knuckle arm 31 and the right steering knuckle arm 32 are symmetrically hinged at both ends of the front axle housing 10 in the length direction, so as to drive the front left wheel and the front right wheel to swing respectively. The two ends of the tie rod 20 are rotatably connected to the left steering knuckle arm 31 and the right steering knuckle arm 32 through a joint bearing structure 40, so that the left steering knuckle arm 31 and the right steering knuckle arm 32 can swing synchronously relative to the front axle housing 10.

[0036] Compared with the prior art, this embodiment mainly uses a joint bearing structure 40 to replace the traditional ball pin to connect the front axle housing 10, the left steering knuckle arm 31 and the right steering knuckle arm 32. The joint bearing structure 40 can realize multi-directional rotation and uniform force, avoiding the joint bearing structure 40 from increasing loss due to excessive force on one side, which makes the service life of the joint bearing structure 40 longer and the service life of the entire transverse tie rod structure is also improved. In addition, the joint bearing is a standard part, which can be directly purchased and replaced without customization, thereby reducing the maintenance cost of the transverse tie rod structure.

[0037] In this embodiment, the left steering knuckle arm 31 and the right steering knuckle arm 32 are respectively connected to the front axle housing 10 through a hydraulic drive rod (not marked in the figure), and the two hydraulic drive rods drive the left steering knuckle arm 31 and the right steering knuckle arm 32 to move. The specific structure and installation method of the hydraulic drive rod belong to the prior art and will not be elaborated here.

[0038] Please combine Figure 4-Figure 6 In this embodiment, both the left steering knuckle arm 31 and the right steering knuckle arm 32 are provided with assembly holes. The joint bearing structure 40 is assembled in the assembly hole; both ends of the tie rod 20 are provided with a connector 203, and the connector 203 includes two spaced connection plates 2031; the joint bearing structure 40 is located between the two connection plates 2031 of the corresponding connector 203, and is connected to the two connection plates 2031. This embodiment is connected to the joint bearing structure 40 through two connection plates 2031, which can improve the connection stability between the tie rod 20 and the joint bearing structure 40.

[0039] In this embodiment, the joint bearing structure 40 includes an outer ring 401 assembled in the assembly hole and an inner ring 402 matched with the outer ring 401; the inner ring 402 is connected to the connecting plate 2031. The inner wall of the outer ring 401 is a spherical concave surface, and the outer wall of the inner ring 402 is a spherical convex surface. The spherical convex surface and the spherical concave surface are matched, so that the inner ring 402 can rotate around the center of the spherical concave surface in the inner cavity of the outer ring 401, thereby realizing multi-directional rotation. The two ends of the inner ring 402 can be exposed outside the outer ring 401 and the inner ring 402, and have a columnar structure. The connecting plate 2031 and the two ends of the inner ring 402 are plugged and matched, and are fixed by fasteners to prevent the connecting plate 2031 from separating from the ends of the inner ring 402. The ends of the connecting plate 2031 and the inner ring 402 can be fixedly connected or rotatably connected.

[0040] In other embodiments, the joint bearing structure 40 further includes a pin inserted in the inner ring 402; the inner ring 402 is connected to the connecting plate 2031 through the pin. Specifically, the pin is interference fit with the inner cavity of the inner ring 402, and both ends of the pin are exposed outside the inner cavity of the inner ring 402 and plugged with the two connecting plates 2031.

[0041] In this embodiment, the inner wall of the assembly hole is provided with an annular boss 321 and an annular groove spaced in the axial direction of the assembly hole, the annular groove is provided with an annular retaining ring 403, the outer ring 401 is located between the annular boss 321 and the annular retaining ring 403, and abuts against the annular boss 321 and the annular retaining ring 403, and the outer ring 401 is restricted from moving axially along the assembly hole by the annular boss 321 and the annular retaining ring 403. During assembly, the outer ring 401 and the inner ring 402 of the joint bearing structure 40 are first assembled into the assembly hole from one end of the assembly hole away from the annular boss 321, so that the outer ring 401 abuts against the annular boss 321, and then the annular retaining ring 403 is assembled in the annular groove, and the annular retaining ring 403 abuts against the side of the outer ring 401 facing away from the annular boss 321, so that the inner ring 402 and the outer ring 401 of the joint bearing structure 40 can be assembled to the assembly hole, and the assembly process is simple and quick.

[0042] In this embodiment, the tie rod 20 at least includes a first tie rod 201 and a second tie rod 202 arranged in sequence along the axial direction of the tie rod 20, the first tie rod 201 and the second tie rod 202 are parallel, and the first tie rod 201 is threadedly connected to the second tie rod 202. The tie rod 20 is a split structure, and its first tie rod 201 and the second tie rod 202 can be installed on the left arm 31 and the right arm 32 of the steering knuckle respectively, and then the first tie rod 201 and the second tie rod 202 are connected together. In this way, before the first tie rod 201 and the second tie rod 202 are connected to form the tie rod 20, the first tie rod 201 and the left arm 31 of the steering knuckle are adjusted to the preset positions, and the second tie rod 202 and the right arm 32 of the steering knuckle are adjusted to the preset positions, and then the first tie rod 201 and the second tie rod 202 are connected together, and finally the first tie rod 201 and / or the second tie rod 202 are twisted, so that the tie rod 20 can be disassembled and assembled without lifting the front axle housing 10 to make the wheel leave, thereby improving the convenience of disassembling and assembling the tie rod 20 and facilitating later maintenance.

[0043] In this embodiment, one of the two connectors 203 is threadedly connected to one end of the first rod 201 away from the second rod 202 , and the other is threadedly connected to one end of the second rod 202 away from the first rod 201 .

[0044] When the length of the tie rod 20 needs to be adjusted, the first tie rod 201 and / or the second tie rod 202 can be twisted to adjust the relative positions of the left arm 31 of the steering knuckle, the first tie rod 201, the second tie rod 202 and the right arm 32 of the steering knuckle, thereby adjusting the length of the tie rod 20. In this way, the length of the tie rod 20 can be adjusted without disassembling the tie rod 20, which improves the convenience of adjusting the tie rod 20. In addition, when the vehicle is parked, the heights of the two front wheels are inconsistent. In this embodiment, the length of the tie rod 20 can also be adjusted by twisting the first tie rod 201 and the second tie rod 202, so that the tie rod 20 can be freely adjusted without lifting the front axle housing 10 to lift the front wheels off the ground. When adjusting the tie rod 20, the tie rod 20 can be adjusted even if the front axle housing 10 is not fixed, which greatly reduces the difficulty of adjusting the tie rod 20 and improves the flexibility of adjusting the tie rod 20.

[0045] In one embodiment, the connector 203 further includes a connecting end 2032, the outer wall of the connecting end 2032 is provided with a first external thread, and the connecting plate 2031 is provided on the end surface of the connecting end 2032. A first threaded hole is provided at one end of the first rod 201 facing away from the second rod 202, and a second external thread is provided at one end of the first rod 201 facing the second rod 202; a second threaded hole is provided at one end of the second rod 202 facing the first rod 201; and a third threaded hole is provided at one end of the second rod 202 facing away from the first rod 201.

[0046] Of the two connectors 203, the connection end 2032 of one is inserted into the first threaded hole, and the first external thread of its outer wall is threadedly connected to the first threaded hole, and the connection end 2032 of the other is inserted into the third threaded hole, and the first external thread of its outer wall is threadedly connected to the third threaded hole. One end of the first tie rod 201 facing the second tie rod 202 is inserted into the second threaded hole, and the second external thread of its outer wall is threadedly connected to the second threaded hole. During assembly, the length of the tie rod 20 can be adjusted by simply twisting the first tie rod 201 and the second tie rod 202, and the adjustment process is simple and quick.

[0047] In this embodiment, a fastening structure 60 (such as Figure 7 ), to enhance the connection strength between the first tie rod 201 and the corresponding connector 203. Figure 7 A fastening structure 60 is provided at the position where the second pull rod 202 and the corresponding connecting head 203 are plugged in, so as to enhance the connection strength between the second pull rod 202 and the corresponding connecting head 203 .

[0048] Furthermore, a fastening structure 60 can be provided at the position where the first pull rod 201 and the second pull rod 202 are threadedly connected to enhance the connection strength between the two. The fastening structure 60 can be a buckle and a bolt assembly, the buckle is sleeved at the position where the first pull rod 201 and the second pull rod 202 are connected, and the bolt assembly is provided on one side of the buckle. When the bolt assembly is tightened, the buckle is tightened, so that the combination tightness of the first pull rod 201 and the second pull rod 202 is improved, and the friction between the first pull rod 201 and the second pull rod 202 is improved, thereby improving the connection strength between the first pull rod 201 and the second pull rod 202.

[0049] In this embodiment, the first external thread threadedly connected to the first threaded hole is a positive thread, and the first external thread threadedly connected to the third threaded hole is a negative thread; the second external thread is a positive thread. When the first screw is turned forward, the first tie rod 201 approaches the corresponding connector 203, and the distance between the first tie rod 201 and the second tie rod 202 is reduced, so that the length of the tie rod 20 can be reduced. When the second tie rod 202 is turned backward, the distance between the second tie rod 202 and the first tie rod 201 is reduced, and the distance between the second tie rod 202 and the corresponding connector 203 is reduced, so that the length of the tie rod 20 can also be reduced. Of course, the first tie rod 201 can be turned forward and the second tie rod 202 can be turned backward at the same time, so that the length of the tie rod 20 can also be shortened. Conversely, the first tie rod 201 is turned backward and the second tie rod 202 is turned forward, so that the length of the tie rod 20 can be extended. In this way, the length of the tie rod 20 can be adjusted simply and quickly.

[0050] In this embodiment, the first pull rod 201 and the second pull rod 202 can be made of solid rods, which can improve their structural strength. Even if they collide with obstacles, such as stones on the road, the first pull rod 201 and the second pull rod 202 will not be easily deformed or even broken, thereby reducing the probability of damage to the first pull rod 201 and the second pull rod 202.

[0051] The embodiment disclosed in this specification is only an example of the unilateral features of the utility model, and the protection scope of the utility model is not limited to this embodiment. Any other functionally equivalent embodiments fall within the protection scope of the utility model. For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all these changes and deformations should fall within the protection scope of the claims of the utility model.

Claims

1. A vehicle transverse tie rod structure, comprising a front axle housing (10), a left steering knuckle arm (31), a right steering knuckle arm (32) and a transverse tie rod (20); the left steering knuckle arm (31) and the right steering knuckle arm (32) are symmetrically hinged to the two ends of the front axle housing (10) in the length direction, so as to respectively drive the front left wheel and the front right wheel to swing; the characteristics are: The two ends of the tie rod (20) are rotatably connected to the left steering knuckle arm (31) and the right steering knuckle arm (32) respectively through a joint bearing structure (40), so that the left steering knuckle arm (31) and the right steering knuckle arm (32) can swing synchronously relative to the front axle housing (10).

2. The vehicle transverse tie rod structure according to claim 1, characterized in that: The left steering knuckle arm (31) and the right steering knuckle arm (32) are both provided with assembly holes; the joint bearing structure (40) is assembled in the assembly holes; both ends of the tie rod (20) are provided with connecting heads (203), and the connecting heads (203) include two connecting plates (2031) arranged at intervals; the joint bearing structure (40) is located between the two connecting plates (2031) of the corresponding connecting heads (203), and is connected to the two connecting plates (2031).

3. The vehicle transverse tie rod structure according to claim 2, characterized in that: The spherical bearing structure (40) comprises an outer ring (401) assembled in the assembly hole and an inner ring (402) matched with the outer ring (401); the inner ring (402) is connected to the connecting plate (2031).

4. The vehicle transverse tie rod structure according to claim 3, characterized in that: The spherical bearing structure (40) further comprises a pin shaft inserted into the inner ring (402); the inner ring (402) is connected to the connecting plate (2031) via the pin shaft.

5. The vehicle transverse tie rod structure according to claim 3, characterized in that: The inner wall of the assembly hole is provided with an annular boss (321) and an annular groove spaced apart in the axial direction of the assembly hole, the annular groove is equipped with an annular retaining ring (403), the outer ring (401) is located between the annular boss (321) and the annular retaining ring (403), and abuts against the annular boss (321) and the annular retaining ring (403), and the outer ring (401) is restricted from axially moving along the assembly hole by the annular boss (321) and the annular retaining ring (403).

6. The vehicle transverse tie rod structure according to claim 2, characterized in that: The tie rod (20) comprises at least a first tie rod (201) and a second tie rod (202) which are arranged in sequence along the axial direction of the tie rod (20); the first tie rod (201) and the second tie rod (202) are parallel, and the first tie rod (201) and the second tie rod (202) are threadedly connected.

7. The vehicle transverse tie rod structure according to claim 6, characterized in that: One of the two connectors (203) is threadedly connected to an end of the first pull rod (201) away from the second pull rod (202), and the other is threadedly connected to an end of the second pull rod (202) away from the first pull rod (201).

8. The vehicle transverse tie rod structure according to claim 7, characterized in that: The connecting head (203) further comprises a connecting end (2032), the outer wall of which is provided with a first external thread; a first threaded hole is provided at one end of the first tie rod (201) facing away from the second tie rod (202), and a second external thread is provided at one end of the first tie rod (201) facing the second tie rod (202); a second threaded hole is provided at one end of the second tie rod (202) facing the first tie rod (201); and a third threaded hole is provided at one end of the second tie rod (202) facing away from the first tie rod (201); Of the two connectors (203), the connection end (2032) of one is inserted into the first threaded hole, and the first external thread on its outer wall is threadedly connected to the first threaded hole, and the connection end (2032) of the other is inserted into the third threaded hole, and the first external thread on its outer wall is threadedly connected to the third threaded hole; One end of the first pull rod (201) facing the second pull rod (202) is plugged into the second threaded hole, and a second external thread on its outer wall is threadedly connected to the second threaded hole.

9. The vehicle transverse tie rod structure according to claim 8, characterized in that: The first external thread threadedly connected to the first threaded hole is a positive thread, and the first external thread threadedly connected to the third threaded hole is a negative thread; the second external thread is a positive thread.

10. A vehicle, characterized in that: The vehicle transverse tie rod structure comprises the vehicle transverse tie rod structure as described in any one of claims 1 to 9.

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