1. A thrust rod, comprising:

a shaft body;

the two spherical cranks are respectively arranged on two opposite sides of the rod body and comprise a ball pin and a connecting shaft, the two opposite sides of the connecting shaft are respectively connected with the rod body and the ball pin, and the diameter of the ball pin is larger than that of the connecting shaft;

the number of the supporting structures is two, the supporting structures and the spherical cranks are arranged in a one-to-one correspondence mode, rotating holes are formed in the supporting structures, and the ball pins are connected in the rotating holes in a rotating mode;

wherein the rotation hole is spherical, and the minimum diameter of the rotation hole is between the maximum diameter and the minimum diameter of the ball pin.

2. The thrust rod of claim 1, wherein the support structure includes an outer support cap and an inner support cap, the outer support cap and the inner support cap being removably connected, the inner support cap being disposed proximate to the rod body, the outer support cap being provided with a first rotation bore section, the inner support cap being provided with a second rotation bore section, a minimum diameter of the second rotation bore section being between a maximum diameter and a minimum diameter of the ball pin;

when the outer support cover and the inner support cover are in a connected state, the first rotating hole section and the second rotating hole section are enclosed to form the rotating hole.

3. The thrust rod of claim 2, wherein the inner support cover is further provided with a third rotation hole section, one side of the third rotation hole section is communicated with the second rotation hole section, the other side of the third rotation hole section penetrates through the inner support cover, and the diameter of the third rotation hole section is larger than that of the connecting shaft.

4. The thrust rod of claim 2, further comprising a lubrication device, the lubrication device being provided with an oil outlet, the oil outlet of the lubrication device being in communication with the rotation hole.

5. The thrust rod of claim 4, wherein the lubrication device comprises an oil supply device and a grease nipple, the grease nipple is disposed on the outer support cover, the grease nipple is provided with an oil inlet and an oil outlet, and the oil inlet and the oil outlet of the grease nipple are respectively communicated with the oil supply device and the first rotating hole section.

6. The thrust rod of claim 2, wherein the outer support cover and the inner support cover are removably connected by a fastener.

7. The thrust rod of claim 1, wherein the rod body is provided with a mounting hole, and the connecting shaft is fixedly connected in the mounting hole.

8. The thrust rod of claim 7, wherein the connecting shaft is welded or riveted within the mounting hole.

9. An automobile, characterized by comprising a thrust rod according to any one of claims 1-8.

Background

Axles (also known as axles) are typically connected to the frame through suspensions (e.g., leaf springs). The vehicle wheels are arranged at two ends of the vehicle frame, so that the force and the moment applied to the vehicle wheels are transmitted to the vehicle frame through the suspension and further transmitted to the vehicle body of the vehicle during the driving process.

In order to limit the relative position between the axle and the vehicle frame, a thrust rod is usually required, one end of the thrust rod is connected to the axle, and the other end of the thrust rod is connected to the vehicle frame or the suspension bracket, so that when the wheel is subjected to longitudinal acting force, transverse acting force or tilting torque and the like, the change of the relative position between the axle and the vehicle frame can be ensured within a desired range.

It is known that, as shown in fig. 1, the existing thrust rod includes a rod body 1, an end head 2, a rubber core assembly 3 and a snap spring 4, when the thrust rod is assembled, firstly, the rubber core assembly 3 is pre-compressed and loaded into the end head 2, then the snap spring 4 is used for limiting the axial displacement of the rubber core assembly 3, and the end head 2 and the rubber core assembly 3 are tightly attached together through the snap spring 4, thereby forming the thrust rod. However, the conventional thrust rod has the following problems:

(1) because the end head 2 and the rod body 1 are connected together by riveting or welding, the angle between the end head 2 and the rod body 1 is a fixed value, and each thrust rod can only adapt to one vehicle type, therefore, the thrust rods with various different models need to be developed to adapt to different vehicle types;

(2) because the axle and the plate spring have dimension errors, the thrust rod mounting hole on the axle cannot be clamped to a specified position in the whole vehicle assembling process, so that the mounting angle of the rubber core assembly 3 is required to be changed along with the change of the thrust rod mounting hole on the axle; however, since the rubber outside the rubber core assembly 3 is locked with the end head 2 through elastic deformation, the end head 2 is in interference fit with the rubber core assembly 3, and the initial angle of the mandrel in the rubber core assembly 3 is fixed, the assembling process between the thrust rod and the thrust rod mounting hole of the axle is difficult, the assembling efficiency is too low, and the production efficiency of the production line is affected;

(3) when the automobile is under a heavy-load working condition and runs on an uneven road surface, the impact force applied to the automobile is large, and the automobile moves greatly in the transverse direction; simultaneously, the impact force transmits to jump ring 4, and jump ring 4 receives the back of strikeing, and jump ring 4 has the risk of warping inefficacy, leads to gluing core assembly 3 to break away from end 2, and then leads to the distance rod to become invalid and fracture, and the car can not normally travel.

Disclosure of Invention

The purpose of the invention is: the invention provides a thrust rod and an automobile, and aims to achieve the purposes that a single thrust rod is suitable for automobiles of various models, the matching effect between the thrust rod and a thrust rod mounting hole of an axle is good, and the driving safety performance of the automobile is improved.

In order to achieve the above object, the present invention provides a thrust rod including:

a shaft body;

the two spherical cranks are respectively arranged on two opposite sides of the rod body and comprise a ball pin and a connecting shaft, the two opposite sides of the connecting shaft are respectively connected with the rod body and the ball pin, and the diameter of the ball pin is larger than that of the connecting shaft;

the number of the supporting structures is two, the supporting structures and the spherical cranks are arranged in a one-to-one correspondence mode, rotating holes are formed in the supporting structures, and the ball pins are connected in the rotating holes in a rotating mode;

wherein the rotation hole is spherical, and the minimum diameter of the rotation hole is between the maximum diameter and the minimum diameter of the ball pin.

In some embodiments of the present application, the support structure comprises an outer support cap and an inner support cap, the outer support cap and the inner support cap being removably connected, the inner support cap being disposed proximate to the shaft, the outer support cap being provided with a first rotation aperture section, the inner support cap being provided with a second rotation aperture section, the second rotation aperture section having a minimum diameter between a maximum diameter and a minimum diameter of the ball pin;

when the outer support cover and the inner support cover are in a connected state, the first rotating hole section and the second rotating hole section are enclosed to form the rotating hole.

In some embodiments of the present application, the inner support cover is further provided with a third rotation hole section, one side of the third rotation hole section is communicated with the second rotation hole section, the other side of the third rotation hole section penetrates through the inner support cover, and the diameter of the third rotation hole section is larger than that of the connecting shaft.

In some embodiments of the present application, the thrust rod further comprises a lubricating device, the lubricating device is provided with an oil outlet, and the oil outlet of the lubricating device is communicated with the rotating hole.

In some embodiments of the present application, the lubricating device includes an oil supply device and a grease nipple, the grease nipple is located on the outer support cover, the grease nipple is equipped with an oil inlet and an oil outlet, the oil inlet and the oil outlet of the grease nipple respectively with the oil supply device with first rotating hole section intercommunication.

In some embodiments of the present application, the outer support cap and the inner support cap are detachably connected by a fastener.

In some embodiments of the present application, the shaft body is provided with a mounting hole, and the connecting shaft is fixedly connected in the mounting hole.

In some embodiments of the present application, the connecting shaft is welded or riveted in the mounting hole.

To achieve the same object, the present invention also provides an automobile including the thrust rod as described above.

The embodiment of the invention provides a thrust rod and an automobile, and compared with the prior art, the thrust rod has the beneficial effects that:

according to the thrust rod provided by the embodiment of the invention, the spherical crank and the supporting structure are arranged, the spherical crank comprises the ball pin and the connecting shaft, two opposite sides of the connecting shaft are respectively connected with the rod body and the ball pin, and the ball pin is rotatably connected in the rotating hole of the supporting structure, so that the thrust rod can rotate within a certain range to change the oblique angle and the mounting angle of the thrust rod; when the mounting angle of the thrust rod is variable, the thrust rod can be better in adaptive connection with the mounting hole of the thrust rod of the axle, so that the connection with the mounting hole of the thrust rod of the axle is facilitated;

in addition, the ball pin is adopted to replace the rubber core assembly, the ball pin has the advantages of long service life and good rigidity, the ball pin is not easy to lose efficacy, and the problem that the thrust rod loses efficacy due to rubber fatigue and aging is avoided; meanwhile, the minimum diameter of the rotating hole is between the maximum diameter and the minimum diameter of the ball pin, the rotating hole limits the ball pin, and the ball pin is difficult to separate from the rotating hole, so that the problem that the thrust rod fails due to damage of a clamp spring is avoided, and the safety performance of the automobile in the driving process is improved;

in addition, the embodiment of the invention also provides an automobile, and the automobile has the advantages of good adaptability of the thrust rod and the axle and high driving safety performance due to the adoption of the thrust rod.

Drawings

Fig. 1 is a schematic structural view of a thrust rod in the related art.

Fig. 2 is a schematic structural view of a thrust rod according to an embodiment of the present invention.

Figure 3 is an exploded view of a thrust rod of an embodiment of the present invention.

Fig. 4 is a schematic view of a connection structure of a ball crank and a support structure according to an embodiment of the present invention.

Fig. 5 is a schematic structural view of an outer support cover according to an embodiment of the present invention.

Fig. 6 is a first structural schematic diagram of an inner support cover according to an embodiment of the invention.

Fig. 7 is a schematic structural diagram of an inner support cover according to an embodiment of the present invention.

In the figure, 1, a shaft; 2. a tip; 3. a rubber core assembly; 4. a clamp spring; 5. a spherical crank; 51. a ball pin; 52. a connecting shaft; 6. a support structure; 61. an outer support cover; 62. an inner support cap; 7. rotating the hole; 71. a first rotation hole section; 72. a second rotary bore section; 8. a third rotary bore section; 9. a grease nipple.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

As shown in fig. 2 to 7, an embodiment of the present invention provides a thrust rod, which includes a rod body 1, two spherical cranks 5 and a support structure 6, wherein the two spherical cranks 5 are respectively disposed on two opposite sides of the rod body 1, the spherical cranks 5 include ball pins 51 and a connecting shaft 52, two opposite sides of the connecting shaft 52 are respectively connected with the rod body 1 and the ball pins 51, and the diameter of the ball pins 51 is greater than that of the connecting shaft 52; the number of the supporting structures 6 is two, the supporting structures 6 are arranged in one-to-one correspondence with the spherical cranks 5, rotating holes 7 are formed in the supporting structures 6, and the ball pins 51 are rotatably connected into the rotating holes 7; wherein the rotation hole 7 has a spherical shape, and the minimum diameter of the rotation hole 7 is between the maximum diameter and the minimum diameter of the ball pin 51.

Based on the arrangement, the thrust rod of the embodiment of the invention is provided with the spherical crank 5 and the supporting structure 6, wherein the spherical crank 5 comprises the ball pin 51 and the connecting shaft 52, two opposite sides of the connecting shaft 52 are respectively connected with the rod body 1 and the ball pin 51, and the ball pin 51 is rotatably connected in the rotating hole 7 of the supporting structure 6, so that the thrust rod can rotate in a certain range to change the oblique angle and the mounting angle of the thrust rod; when the mounting angle of the thrust rod is variable, the thrust rod can be better in adaptive connection with the mounting hole of the thrust rod of the axle, so that the connection with the mounting hole of the thrust rod of the axle is facilitated;

in addition, the ball pin 51 is adopted to replace a rubber core assembly, the ball pin 51 has the advantages of long service life and good rigidity, the ball pin 51 is not easy to lose efficacy, and the problem of thrust rod failure caused by rubber fatigue and aging is avoided; meanwhile, the minimum diameter of the rotating hole 7 is between the maximum diameter and the minimum diameter of the ball pin 51, the rotating hole 7 limits the ball pin 51, the ball pin 51 is difficult to separate from the rotating hole 7, the problem that the thrust rod fails due to damage of the clamp spring is avoided, and the safety performance of the automobile in the driving process is improved.

In some embodiments, optionally, as shown in fig. 1-7, the support structure 6 comprises an outer support cover 61 and an inner support cover 62, the outer support cover 61 and the inner support cover 62 being detachably connected, thereby facilitating the mounting and dismounting of the ball pin 51 with the outer support cover 61 and the inner support cover 62;

the inner support cover 62 is arranged close to the shaft 1, the outer support cover 61 is provided with a first rotating hole section 71, the inner support cover 62 is provided with a second rotating hole section 72, and the minimum diameter of the second rotating hole section 72 is between the maximum diameter and the minimum diameter of the ball pin 51; when the outer support cover 61 and the inner support cover 62 are in a connected state, the first rotation hole section 71 and the second rotation hole section 72 enclose to form the rotation hole 7, whereby the outer support cover 61 and the inner support cover 62 each provide a space for the rotation of the ball pin 51, thereby facilitating the rotation of the ball pin 51 within the outer support cover 61 and the inner support cover 62.

In some embodiments, optionally, as shown in fig. 4, 6 and 7, the inner support cover 62 is further provided with a third rotation hole section 8, one side of the third rotation hole section 8 is communicated with the second rotation hole section 72, the other side of the third rotation hole section 8 penetrates through the inner support cover 62, and the diameter of the third rotation hole section 8 is larger than that of the connecting shaft 52. Thus, the third rotation hole section 8 provides a space for the rotation of the connection shaft 52, the connection shaft 52 can rotate in the third rotation hole section 8, and the connection shaft 52 drives the ball pin 51 to rotate in the first rotation hole section 71 and the second rotation hole section 72, thereby facilitating the rotation of the ball pin 51.

In some embodiments, optionally, as shown in fig. 2 and 5, the thrust rod further comprises a lubricating device, the lubricating device is provided with an oil outlet, and the oil outlet of the lubricating device is communicated with the rotating hole 7;

the lubricating device comprises an oil supply device and a grease nozzle 9, the grease nozzle 9 is arranged on the outer support cover 61, the grease nozzle 9 is provided with an oil inlet and an oil outlet, the oil inlet and the oil outlet of the grease nozzle 9 are respectively communicated with the oil supply device and the first rotating hole section 71, in other words, after the thrust rod is used for a period of time, the friction force between the ball pin 51 and the first rotating hole section 71 and the second rotating hole section 72 can be increased, in order to facilitate the rotation of the ball pin 51, the oil supply device supplies oil into the first rotating hole section 71 through the grease nozzle 9, and hydraulic oil flows among the first rotating hole section 71, the second rotating hole section 72 and the ball pin 51, so that the friction force between the ball pin 51 and the first rotating hole section 71 and the second rotating hole section 72 is reduced;

alternatively, the oil supply device may be replaced by a filling device for supplying grease.

In some embodiments, optionally, as shown in fig. 2-7, outer support cover 61 and inner support cover 62 are removably connected by fasteners. Thereby, the mounting and dismounting of the outer support cover 61 and the inner support cover 62 are facilitated;

the fasteners of the present embodiment are illustratively bolts or screws.

In some embodiments, optionally, as shown in fig. 2 and 3, in order to prevent the ball crank 5 from being separated from the shaft 1, the shaft 1 is provided with a mounting hole in which the connecting shaft 52 is fixedly connected;

illustratively, the connecting shaft 52 is welded or riveted in the mounting hole, so that the connecting stability between the connecting shaft 52 and the shaft 1 is good.

In order to achieve the same purpose, as shown in fig. 2 to 7, the present invention also provides an automobile, which includes the thrust rod as described above, and has the advantages of good adaptability of the thrust rod to the axle and high driving safety performance due to the adoption of the thrust rod.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.