Stabilizer bar and vehicle

Abstract

The present application relates to the technical field of vehicles, and particularly relates to a stabilizer bar and a vehicle. The stabilizer bar includes a body, a first adjusting mechanism, and a locking mechanism. The body includes a first rod body and a second rod body. The first adjusting mechanism includes an adjusting rod and a first driving mechanism for driving the adjusting rod to rotate. The adjusting rod includes a first threaded rod screwed to the first rod body and a second threaded rod screwed to the second rod body. The adjusting rod is fixedly provided with a first internal spline and a second internal spline. The locking mechanism includes a first spline hub and a second spline hub. When the first spline hub slides relative to the first external spline and the second spline hub slides relative to the second external spline, the locking mechanism can be switched between a locked state and an unlocked state. Compared with the prior art, the continuous and stable adjustment of the length of the stabilizer bar is controlled by the first driving mechanism, and the locking mechanism can maintain the current length and rigidity of the stabilizer bar, effectively improving the convenience and application range of the stabilizer bar.

Description

Technical Field

[0001] The present application relates to the technical field of vehicles, and particularly relates to a stabilizer bar and a vehicle. Background Art

[0002] The full name of the stabilizer bar is "lateral stabilizer bar", and its English name is Torsion-Bar Spring. The function of the stabilizer bar is to balance the reverse bounce of the left and right wheels of the vehicle when the vehicle is turning or driving on an uneven road surface, and prevent the vehicle body from tilting at too large an angle.

[0003] Most of the existing stabilizer bars are integrally formed rod structures, which are not convenient for adjusting the length. Such structures cannot meet the usage requirements of different types of vehicles, and the self-adjusting ability of the stabilizer bar is poor, and the service life of the stabilizer bar is short. Summary of the Invention

[0004] One of the purposes of the present application is to provide a stabilizer bar and a vehicle, which can realize continuous adjustment of the length of the stabilizer bar, improve convenience, and effectively improve the applicable range of the stabilizer bar.

[0005] In order to achieve the above purpose, the technical solutions adopted in the present application are as follows:

[0006] In a first aspect, an embodiment of the present application provides a stabilizer bar, including:

[0007] A body, including a first rod body and a second rod body arranged oppositely, a first external spline is provided on the first rod body, and a second external spline is provided on the second rod body;

[0008] A length adjusting mechanism, including an adjusting rod and a first driving mechanism for driving the adjusting rod to rotate. The adjusting rod includes a first threaded rod screwed to the first rod body in a first rotation direction and a second threaded rod screwed to the second rod body in a second rotation direction. The first rotation direction is opposite to the second rotation direction. A first internal spline and a second internal spline are fixedly provided on the adjusting rod;

[0009] A locking mechanism, including a first spline hub sleeved on the first rod body and a second spline hub sleeved on the second rod body. A third internal spline axially slidably engaged with the first external spline is provided on the first spline hub, and a fourth internal spline axially slidably engaged with the second external spline is provided on the second spline hub. During the process of the first spline hub sliding along the first external spline, the third internal spline can be locked or unlocked with the first internal spline. During the process of the second spline hub sliding along the second external spline, the fourth internal spline can be locked or unlocked with the second internal spline.

[0010] Further, the first driving mechanism includes a first driving member, a worm, and a worm wheel. The worm wheel is sleeved on the adjusting rod. The first internal spline and the second internal spline are fixed on both sides of the worm wheel. The worm is assembled on the first driving member, and the worm is in transmission connection with the worm wheel so that the worm wheel drives the adjusting rod to rotate.

[0011] Further, the first external spline and the second external spline are spline grooves extending along the axial direction of the main body. In the state of locked cooperation, the third internal spline meshes with the first external spline and the first internal spline, and the fourth internal spline meshes with the second external spline and the second internal spline. In the state of unlocking the locked cooperation, the third internal spline meshes with the first external spline, the third internal spline is away from the first internal spline, the fourth internal spline meshes with the second external spline, and the fourth internal spline is away from the second internal spline.

[0012] Further, the locking mechanism further includes a second driving mechanism, and the second driving mechanism is used to drive the first spline hub and the second spline hub to move relatively closer or relatively farther away along the axial direction.

[0013] Further, the second driving mechanism further includes a second driving member and a transmission assembly. One end of the transmission assembly is assembled on the second driving member, and the other end of the transmission assembly is connected to the first spline hub and the second sleeve. The second driving member drives the first spline hub and the second sleeve to move relatively farther away or relatively closer through the transmission assembly.

[0014] Further, the transmission assembly includes a telescopic member, a first connecting rod, and a second connecting rod. The telescopic member has an assembling portion and a connecting portion. The assembling portion is assembled and connected to the second driving member. One end of the first connecting rod is rotatably connected to the connecting portion, and the other end of the first connecting rod is rotatably connected to the first spline hub. One end of the second connecting rod is rotatably connected to the connecting portion, and the other end of the second connecting rod is rotatably connected to the second sleeve. The second driving member is used to drive the telescopic member to approach or move away from the main body along the radial direction of the main body.

[0015] Further, along the radial direction of the first spline hub, the first spline hub is provided with a first upright post. Along the radial direction of the second sleeve, the second sleeve is provided with a second upright post. The end of the first connecting rod is rotatably connected to the first upright post, and the end of the second connecting rod is rotatably connected to the second upright post.

[0016] Further, the telescopic member includes a screw rod and a nut that cooperates with the screw rod. The screw rod is assembled to the second driving member through the assembly portion. The nut is threadedly assembled to the screw rod. The nut is assembled to the screw rod. The connecting portion includes two parts, and the two connecting parts are respectively arranged on both sides of the nut. One of the connecting parts is rotatably connected to the end of the first connecting rod, and the other connecting part is rotatably connected to the end of the second connecting rod.

[0017] Further, along the axial direction of the first rod body, a first cavity is formed in the first rod body. A thread with the first helix direction is provided between one end of the adjusting rod and the first cavity. Along the axial direction of the second rod body, a second cavity is formed in the second rod body. A thread with the second helix direction is provided between the other end of the adjusting rod and the second cavity.

[0018] In a second aspect, an embodiment of the present application provides a vehicle, including the above-mentioned stabilizer bar.

[0019] Advantages of the present application: Since one end of the adjusting rod in the length adjusting mechanism is connected to the first rod body through a thread with the first helix direction, and the other end of the adjusting rod is connected to the second rod body through a thread with the second helix direction, and the first helix direction is opposite to the second helix direction. When it is necessary to adjust the length of the stabilizer bar, the first driving mechanism can be used to control the rotation of the adjusting rod. Further, when it is necessary to increase the distance between the first rod body and the second rod body, the first rod body and the second rod body can be made to move relatively away from each other, thereby increasing the length of the stabilizer bar body; when it is necessary to decrease the distance between the first rod body and the second rod body, the first rod body and the second rod body can be made to move relatively closer to each other, thereby reducing the length of the stabilizer bar body. At the same time, through the locking mechanism, it is in a state of unlocking and mating when the length of the stabilizer bar needs to be adjusted, and during the process of normal use after the length of the stabilizer bar is adjusted, the locking mechanism is maintained in a locked mating state, thereby maintaining the current length of the stabilizer bar and maintaining the rigidity of the stabilizer bar. On the basis of saving manpower, the length of the stabilizer bar can be adjusted quickly and stably, and on the basis of realizing continuously adjustable length, the rigidity of the stabilizer bar can be improved, and further the applicable range of the stabilizer bar can be improved. Description of the Drawings

[0020] Figure 1 Shows the overall structural schematic diagram of the stabilizer bar provided by the embodiment of the present application;

[0021] Figure 2 Shows the partial enlarged schematic diagram of the stabilizer bar provided by the embodiment of the present application;

[0022] Figure 3 Shows the overall structural schematic diagram of one side of the first rod body in the stabilizer bar provided by the embodiment of the present application;

[0023] Figure 4 Shows the overall structural schematic diagram of one side of the second rod body in the stabilizer bar provided by the embodiment of the present application;

[0024] Figure 5 Shows the schematic diagram of the worm gear - stud in the stabilizer bar provided by the embodiment of the present application;

[0025] Figure 6 Shows the schematic diagram of the connection between the worm gear - stud and the left and right sections of the stabilizer bar provided by the embodiment of the present application;

[0026] Figure 7 Shows the schematic diagram of the stabilizer bar connecting to the first spline hub provided by the embodiment of the present application;

[0027] Figure 8 Shows the schematic diagram of the stabilizer bar connecting to the second spline hub provided by the embodiment of the present application;

[0028] Figure 9 Shows the overall structural schematic diagram of the first driving member in the stabilizer bar provided by the embodiment of the present application;

[0029] Figure 10 Shows the schematic diagram of the nut structure in the stabilizer bar provided by the embodiment of the present application;

[0030] Figure 11 Shows the overall structural schematic diagram of the second driving member in the stabilizer bar provided by the embodiment of the present application;

[0031] Figure 12 Shows the sectional view of the stabilizer bar along the axis A - A provided by the embodiment of the present application.

[0032] Wherein:

[0033] 10. Body;

[0034] 11. First rod body; 111. First external spline; 112. Internal thread with the first helix direction;

[0035] 12. Second rod body; 121. Second external spline; 122. Internal thread with the second helix direction;

[0036] 20. Length adjustment mechanism;

[0037] 21. Adjusting rod; 211. First threaded rod; 212. Second threaded rod;

[0038] 22. First driving member; 221. First driving shaft; 222. First assembly hole;

[0039] 23. Worm;

[0040] 24. Worm gear; 241. First internal spline; 242. Second internal spline;

[0041] 30. Locking mechanism;

[0042] 31. First spline hub; 311. Third internal spline; 312. First column; 313. First mounting hole;

[0043] 32. Second spline hub; 321. Fourth internal spline; 322. Second column; 323. Second mounting hole;

[0044] 33. Second driving member; 331. Screw; 332. Second assembly hole;

[0045] 34. First connecting rod;

[0046] 35. Second connecting rod;

[0047] 36. Nut; 361. Connecting portion; 362. Nut internal thread. Detailed implementation manner

[0048] The following will illustrate the implementation manner of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention, rather than for limiting the protection scope of the present invention.

[0049] It should be noted that the drawings provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner. Therefore, only the components related to the present invention are shown in the drawings, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and ratio of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0050] The full name of the stabilizer bar is "lateral stabilizer bar", and its English name is Torsion - Bar Spring. The function of the stabilizer bar is to balance the reverse bounce of the left and right wheels of the vehicle when the vehicle is turning or driving on an uneven road surface, and prevent the vehicle body from tilting at too large an angle. Most of the existing stabilizer bars are integrally formed rod structures, which are not convenient to adjust the length. This structure cannot meet the usage requirements of different types of vehicles, and the self - adjustment ability of the stabilizer bar is poor, and the service life of the stabilizer bar is short.

[0051] Therefore, in order to achieve continuous adjustability of the stabilizer bar length and reduce manual operation, a new stabilizer bar structure needs to be designed, which has continuous length adjustability, so that the stabilizer bar has a wider application range. Without disassembling or replacing, the length of the stabilizer bar can be quickly and simply adjusted, and the R & D efficiency of the stabilizer bar performance matching can be improved.

[0052] Reference Figures 1-12 As shown Figures 1-12 , in a first aspect, an embodiment of the present application provides a stabilizer bar, including a body 10, a length adjustment mechanism 20, and a locking mechanism 30. The length of the stabilizer bar body 10 is adjusted by the length adjustment mechanism 20, and the current length of the body 10 is locked or unlocked by the locking mechanism 30.

[0053] Specifically, in one embodiment, the body 10 includes a first rod body 11 and a second rod body 12 arranged oppositely. A first external spline 111 is provided on the first rod body, and a second external spline 121 is provided on the second rod body 12.

[0054] The length adjustment mechanism 20 includes an adjustment rod 21 and a first driving mechanism for driving the adjustment rod to rotate. The adjustment rod 21 includes a first threaded rod 211 screwed to the first rod body 11 in a first rotation direction and a second threaded rod 212 screwed to the second rod body 12 in a second rotation direction. The first rotation direction is opposite to the second rotation direction. A first internal spline 241 and a second internal spline 242 are fixedly provided on the adjustment rod 21.

[0055] Including the body 10 of the stabilizer bar, the length adjustment mechanism 20, and the locking mechanism 30. The body 10 includes a first rod body 11 and a second rod body 12. The first rod body 11 includes a first docking section, and the second rod body 12 includes a second docking section. The first docking section and the second docking section are arranged oppositely. The length adjustment mechanism 20 includes an adjustment rod 20 and a first driving mechanism. The adjustment rod 20 is arranged between the first docking section and the second docking section. The adjustment rod 20 includes a first end and a second end. Along the axial direction of the body 10, the first end is threadedly connected to the first docking section in a first rotation direction, and the second end is threadedly connected to the second docking section in a second rotation direction. The first rotation direction is opposite to the second rotation direction. The first driving mechanism is used to drive the adjustment rod 20 to rotate circumferentially, so that the first end moves away from the first docking section and the second end moves away from the second docking section; or, the first end moves closer to the first docking section and the second end moves closer to the second docking section.

[0056] Among them, the axis of the body 10, the axis of the first docking section, and the axis of the second docking section coincide. When the axis of the adjusting rod 20 coincides with the axis of the body 10, after the first driving mechanism controls the rotation of the adjusting rod 20, the first docking section and the first end of the adjusting rod 20 rotate along the first rotation direction. At the same time, the second docking section and the second end of the adjusting rod 20 rotate along the second rotation direction. Since the first rotation direction is opposite to the second rotation direction, further, when it is necessary to increase the distance between the first rod body 11 and the second rod body 12, the first end can be made to move away from the first docking section, and at the same time the second end moves away from the second docking section, thereby increasing the length of the stabilizer bar body 10; and when it is necessary to reduce the distance between the first rod body 11 and the second rod body 12, the first end can be made to approach the first docking section, and at the same time the second end approaches the second docking section, thereby reducing the length of the stabilizer bar body 10. On the basis of saving manpower, the length of the stabilizer bar can be adjusted quickly and stably, and continuous adjustment of the length can be achieved, further improving the applicable range of the stabilizer bar.

[0057] Reference Figure 1 and Figure 2 As shown, in one embodiment, the first rotation direction can be set to left-handed rotation, and the second rotation direction can be set to right-handed rotation. Of course, in other embodiments, the first rotation direction can be set to right-handed rotation, and the second rotation direction can be set to left-handed rotation to meet the condition that the first rotation direction is opposite to the second rotation direction.

[0058] In one embodiment, the body 10 further includes multiple intermediate rod bodies. The multiple rod bodies are sequentially arranged along the axial direction of the body 10. A length adjustment mechanism 20 is provided between adjacent rod bodies. A length adjustment mechanism 20 is also provided between the first rod body 11 and the intermediate rod body, and a length adjustment mechanism 20 is also provided between the second rod body 12 and the intermediate rod body. Further, different usage environments can be satisfied through multiple length adjustment mechanisms 20 to further improve the applicable range of the stabilizer bar.

[0059] In one embodiment, both the first docking section and the second docking section have docking surfaces, and the docking surfaces are opened in the middle of the body 10. When the length adjustment mechanism 20 adjusts the lengths of the first docking section and the second docking section, the stability of the stabilizer bar during use can be effectively improved.

[0060] In one embodiment, the first driving mechanism can drive the adjusting rod 20 to rotate along the circumferential direction of the adjusting rod 20. The circumferential rotation of the adjusting rod 20 can cause the first rotation direction thread (internal and external thread cooperation) that fits between the first end and the first docking section to retract along the axial direction of the body 10. At the same time, the second rotation direction thread (internal and external thread cooperation) that fits between the second end and the second docking section retracts along the axial direction of the body 10, thereby achieving the adjustment of the axial length of the stabilizer bar body 10.

[0061] After the first docking section and the second docking section are adjusted to a preset length by the length adjustment mechanism 20, the length of the current stabilizer bar body 10 is maintained by the locking mechanism 30.

[0062] Specifically, referring to Figure 12 As shown in (g) and (h) of [reference], the first end locking mechanism 30 includes a first spline hub 31 sleeved on the first rod body 11 and a second spline hub 32 sleeved on the second rod body 12. A third internal spline 311 that axially slides in cooperation with the first external spline 111 is provided on the first spline hub. A fourth internal spline 321 that axially slides in cooperation with the second external spline 121 is provided on the second spline hub 32. During the process of the first spline hub 31 sliding along the first external spline 111, the third internal spline 311 can be in locking cooperation or unlocking cooperation with the first internal spline 241. During the process of the second spline hub 32 sliding along the second external spline 121, the fourth internal spline 321 can be in locking cooperation or unlocking cooperation with the second internal spline 242.

[0063] Furthermore, in the state of locking cooperation, the effects of maintaining the current length of the stabilizer bar and improving the torsional mechanical strength of the stabilizer bar are achieved. In the state of unlocking cooperation, it is convenient for the length adjustment mechanism 20 to adjust the length between the first rod body 11 and the second rod body 12.

[0064] In another embodiment, the first external spline 111 and the second external spline 121 are spline grooves extending along the axial direction of the main body. In the state of locking cooperation, the third internal spline 311 meshes with the first external spline 111 and the first internal spline 241, and the fourth internal spline 321 meshes with the second external spline 121 and the second internal spline 242. In the state of unlocking cooperation, the third internal spline 311 meshes with the first external spline 111, the third internal spline 311 is away from the first internal spline 241, the fourth internal spline 321 meshes with the second external spline 121, and the fourth internal spline 321 is away from the second internal spline 242. Second end; so as to restrict the circumferential rotation between the first rod body and the second rod body, and improve the overall torsional resistance of the stabilizer bar through the locking mechanism 30, effectively improving the mechanical strength of the stabilizer bar in the axial and circumferential directions.

[0065] Further, along the axial direction of the first rod body 11, a first cavity is formed inside the first docking section, and a thread with a first helix direction is provided between the first end and the first cavity. Further, a threaded connection is formed between the first docking section and the first end of the adjusting rod 20. Along the axial direction of the second rod body 12, a second cavity is formed inside the second docking section, and a thread with a second helix direction is provided between the second end and the second cavity. Further, a threaded connection is formed between the second docking section and the second end of the adjusting rod 20, which facilitates continuous adjustment of the length of the stabilizer bar body 10. Further, referring to Figures 2-6 As shown, the first driving mechanism includes a worm gear 24, a worm 23, and a first driving member 22. The worm gear 24 is assembled on the adjusting rod 20 and is arranged between the first end and the second end. The worm 23 is assembled on the first driving member, and the worm 23 is in meshing transmission connection with the worm gear 24 to drive the adjusting rod 20 to rotate circumferentially by the worm gear 24.

[0066] Referring to Figures 2-4 As shown, the worm gear 24 is fixedly assembled with the adjusting rod 20, so that the worm gear 24 can drive the adjusting rod 20 to rotate synchronously along the circumferential direction of the adjusting rod 20. Through the meshing transmission between the worm 23 and the worm gear 24 and the transmission between the first driving member and the worm 23, the circumferential rotation direction of the worm gear 24 is adjusted, so as to control the relative approach between the first docking section and the second docking section when the length of the stabilizer bar needs to be reduced, or to control the relative separation between the first docking section and the second docking section when the length of the stabilizer bar needs to be increased.

[0067] Further, referring to Figure 3 、 Figure 4 、 Figure 5 (a, b)and Figure 6 As shown, the first internal spline 241 can be arranged on the first side of the worm gear 24, as shown in Figure 5 (a), and the second internal spline 242 can be arranged on the second side of the worm gear 24, as shown in Figure 5 (b). The worm gear 24 is in meshing transmission connection with the worm 23; a first external spline 111 is arranged on the outer periphery of the first docking section, and a second external spline 121 is arranged on the outer periphery of the second docking section.

[0068] In an embodiment, the worm gear 24 is fixedly sleeved on the outer periphery of the adjusting rod 20. Further, when the worm 23 drives the worm gear 24 to rotate, the worm gear 24 can synchronously drive the adjusting rod 20 to rotate. Further, when the length of the stabilizer bar needs to be reduced, the first docking section can be relatively close to the first end, and at the same time, the second docking section can be relatively close to the second end. When the length of the stabilizer bar needs to be increased, the first docking section can be relatively separated from the middle part of the adjusting rod, and at the same time, the second docking section can be relatively separated from the middle part of the adjusting rod.

[0069] As an example, the first threaded rod 211 with a first thread direction and a certain axial length at the first end of the adjusting rod 20 can be threadedly connected to the internal thread 112 with the first thread direction arranged on the first docking section, and the second threaded rod 212 with a second thread direction and a certain axial length at the second end of the adjusting rod 20 can be threadedly connected to the internal thread 122 with the second thread direction arranged on the second docking section.

[0070] Furthermore, since the transmission between the worm gear 24 and the worm 23 is one-way, that is, only the worm 23 can drive the worm gear 24 to rotate, and the worm gear 24 cannot drive the worm 23 to move. Furthermore, after the first driving member drives the worm 23 to move and reaches the preset length of the stabilizer bar, the driving can be stopped to maintain the current length of the stabilizer bar.

[0071] During actual use, in the structure of the worm gear 24 and the worm 23, since the worm gear 24 cannot drive the worm 23, this can also ensure that the stabilizer bar is always in the middle position of the whole vehicle, preventing the left and right movement of the stabilizer bar.

[0072] Furthermore, the locking mechanism 30 further includes a second driving mechanism. The first spline hub 31 is slidably sleeved on the outer periphery of the first rod body 11, the second spline hub 32 is slidably sleeved on the outer periphery of the second rod body 12, a third internal spline 311 is arranged inside the first spline hub 31, a fourth internal spline 321 is arranged inside the second spline hub 32, the third internal spline 311 meshes with the first external spline 111, and the fourth internal spline 321 meshes with the second external spline 121; the second driving mechanism is used to drive the first spline hub 31 and the second spline hub 32 to move relatively away from or relatively close to each other along the axial direction of the body 10.

[0073] Furthermore, after the third internal spline 311 meshes with the first external spline 111, the relative sliding of the first spline hub 31 and the first rod body in the axial direction can be realized, and at the same time, the rotational states of the first spline hub 31 and the first rod body in the circumferential direction can be kept consistent;

[0074] Similarly, after the fourth internal spline 321 meshes with the second external spline 121, the relative sliding of the second spline hub 32 and the second rod body 12 in the axial direction is realized, and at the same time, the rotational states of the second spline hub 32 and the second rod body 12 in the circumferential direction can be kept consistent, and the first spline hub 31 and the second spline hub 32 are controlled to move relatively close to or relatively away from each other by the second driving mechanism.

[0075] In the locked state, the end of the first external spline 111 is far from the first internal spline 241, and the third internal spline 311 is connected to the first internal spline 241. Furthermore, the relative rotation between the first docking section and the adjusting rod 20 and the relative displacement between the first docking section and the adjusting rod 20 in the axial direction can be limited by the first spline hub 31;

[0076] Meanwhile, since the end of the second external spline 121 is far from the second internal spline 242, and the fourth internal spline 321 is connected to the second internal spline 242, the relative rotation between the second docking section and the second end of the adjusting rod 20 and the relative axial displacement between the second docking section and the adjusting rod 20 can be limited by the second spline hub 32, thereby maintaining the relative axial displacement between the current first docking section and the second docking section and preventing the main body 10 from rotating circumferentially to improve the overall performance of the stabilizer bar.

[0077] Furthermore, the locking mechanism 30 further includes a second driving mechanism. The connection positions between the second driving mechanism and the first spline hub 31 and the second spline hub 32 are rotationally connected and have a certain degree of rotational freedom. Thus, in the locked state, the third internal spline 311 can be engaged with the first internal spline 241 to achieve a rigid connection. At the same time, the end of the second external spline 121 is far from the second internal spline 242, and the fourth internal spline 321 is engaged with the second internal spline 242 to achieve a rigid connection. Furthermore, through the first spline hub 31 and the second spline hub 32, the relative axial displacement between the first docking section and the second docking section is further limited. After better position adjustment, the overall length of the stabilizer bar is ensured, the stabilizer bar is prevented from rotating circumferentially, and the overall torsional strength of the stabilizer bar is improved.

[0078] Furthermore, the second driving mechanism further includes a second driving member 33 and a transmission assembly. One end of the transmission assembly is assembled to the second driving member 33, and the other end of the transmission assembly is connected to the first spline hub 31 and the second spline hub 32. The second driving member 33 drives the first spline hub 31 and the second spline hub 32 to move relatively away from or relatively close to each other through the transmission assembly. In this embodiment, the second driving member 33 and the transmission assembly can quickly and stably adjust the relative positions of the first spline hub 31 and the second spline hub 32. When it is necessary to limit the lengths of the first docking section and the second docking section, the relative axial position between the first end and the first docking section and the relative rotational angle between the first end and the first docking section in the circumferential direction are limited by the first circumferential limiting member and the second circumferential limiting member on the first spline hub 31. At the same time, the relative axial position between the second end and the second docking section and the relative rotational angle between the second end and the second docking section in the circumferential direction are limited by the first circumferential limiting member and the second circumferential limiting member on the second spline hub 32.

[0079] In a specific usage scenario, when it is necessary to adjust the length of the stabilizer bar, the second driving member 33 and the transmission assembly can be used to first slide the third internal spline 311 relative to the first external spline 111 and move away from the first internal spline 241. At the same time, the fourth internal spline 321 is slid relative to the second external spline 121 and moves away from the second internal spline 242, so that the locking mechanisms are all in the unlocked state. Stop the second driving member 33, start the first driving member, and drive the adjusting rod 20 to rotate circumferentially, so that the first end moves away from the first docking section and the second end moves away from the second docking section; or, make the first end approach the first docking section and the second end approach the second docking section. After the first docking section and the second docking section reach a preset interval distance, stop the first driving member, drive the second driving member 33, slide the third internal spline 311 relative to the first external spline 111, and make the third internal spline 311 approach the first internal spline 241. At the same time, the fourth internal spline 321 is slid relative to the second external spline 121, and the fourth internal spline 321 is made to approach the second internal spline 242 until the third internal spline 311 can be locked and engaged with the first internal spline 241, and the fourth internal spline 321 can be locked and engaged or unlocked with the second internal spline 242, thereby completing the adjustment of the length of the stabilizer bar.

[0080] Further, referring to Figure 2 As shown, the transmission assembly includes a telescopic member, a first connecting rod 34 and a second connecting rod 35. The telescopic member has an assembly portion and a connecting portion 361. The assembly portion is assembled and connected to the second driving member 33. One end of the first connecting rod 34 is rotatably connected to the connecting portion 361, and the other end of the first connecting rod 34 is rotatably connected to the first spline hub 31. One end of the second connecting rod 35 is rotatably connected to the connecting portion 361, and the other end of the second connecting rod 35 is rotatably connected to the second spline hub 32. The second driving member 33 is used to drive the telescopic member to approach or move away from the body 10 along the radial direction of the body 10. The first spline hub 31 is driven to slide along the axial direction of the first docking section through the first connecting rod 34, and the second spline hub 32 is driven to slide along the axial direction of the second docking section through the second connecting rod 35. The second driving member 33 drives the telescopic member to move along the radial direction of the body 10. The second driving member 33 can be set as a motor, the telescopic member can be set as an electric telescopic rod, the assembly portion is one end of the electric telescopic rod, the connecting portion 361 is the open end of the electric telescopic rod, and the first connecting rod 34 and the second connecting rod 35 are both connected to the connecting portion 361. Furthermore, the first connecting rod 34 and the second connecting rod 35 can be simultaneously driven to move synchronously through the telescopic rod.

[0081] In another embodiment, the first connecting rod 34 and the second connecting rod 35 have the same length. There is a first connection position between the first connecting rod 34 and the first spline hub 31, and a second connection position between the second connecting rod 35 and the second spline hub 32. An isosceles triangle structure is formed among the first connection position, the second connection position, and the connecting portion 361. Further, the first connecting rod 34 and the second connecting rod 35 synchronously drive the first spline hub 31 and the second spline hub 32 to slide, so as to maintain the stability of the stabilizer bar during the length adjustment process.

[0082] Further, in another embodiment, it is possible to make the first connection position and the second connection position have a certain degree of rotation, and the connecting portion 361 also has a certain degree of rotation. Further, when the first connecting rod 34 drives the first spline hub 31 and the second connecting rod 35 drives the second spline hub 32, the first spline hub 31 and the second spline hub 32 can be stably driven to rotate synchronously, avoiding the circumferential rotation between the first connecting rod 34 and the first spline hub 31, and avoiding the circumferential rotation between the second connecting rod 35 and the second spline hub 32, so as to further improve the stability of the stabilizer bar during use.

[0083] Further, referring to Figure 2 、 Figure 7 as shown in (c) and (d) of , along the radial direction of the first spline hub 31, the first spline hub 31 is provided with a first upright post 312. Referring to Figure 8 as shown in (e) and (f) of , along the radial direction of the second spline hub 32, the second spline hub 32 is provided with a second upright post 322. The end of the first connecting rod 34 is rotatably connected to the first upright post 312, and the end of the second connecting rod 35 is rotatably connected to the second upright post 322. The first upright post 312 and the second upright post 322 reduce the resistance of the first connecting rod 34 and the second connecting rod 35 during the driving process, and improve the driving efficiency of the second driving member 33.

[0084] In one embodiment, the radial heights of the first upright post 312 and the second upright post 322 can satisfy that the first connecting rod 34 and the second connecting rod 35 are horizontal with the horizontal plane. Further, the radial resistance of the first connecting rod 34 and the second connecting rod 35 during the driving process can be reduced through the first upright post 312 and the second upright post 322, which is convenient for adjusting the position of the second driving member 33 and the position of the telescopic rod.

[0085] In another embodiment, the plane where the telescopic rod is located, the plane where the first connecting rod 34 is located, and the plane where the second connecting rod 35 is located are coplanar, and the heights of the first upright post 312 and the second upright post 322 are the same, and both extend from the body 10 to the plane where the first connecting rod 34 is located. Further, the radial resistance of the first connecting rod 34 and the second connecting rod 35 during the driving process can be reduced through the first upright post 312 and the second upright post 322.

[0086] In one embodiment, axially on the body 10, the first column 312 and the second column 322 are symmetrically arranged with respect to the center of the stabilizer bar. Further, the stability during the force application between the first link 34 and the first column 312 is improved, and at the same time, the stability during the force application between the second link 35 and the second column 322 is improved.

[0087] Further, referring to Figure 1 、 Figure 2 、 Figure 7 、 Figure 8 and Figure 10 As shown, the telescopic member includes a screw 331 and a nut 36 that cooperates with the screw 331. The screw 331 is assembled to the second driving member 33 through an assembling portion. The nut 36 is threadedly assembled to the screw 331. The nut 36 is assembled to the screw 331. The connecting portion 361 includes two. The two connecting portions 361 are respectively arranged on both sides of the nut 36, and one of the connecting portions 361 is rotatably connected to the end of the first link 34, and the other connecting portion 361 is rotatably connected to the end of the second link 35. The two connecting portions 361 are symmetrically arranged on both sides of the nut 36. After the screw 331 rotates, it will drive the nut 36 to move along the extending direction of the screw 331. Further, the first link 34 and the second link 35 are driven to move through the two connecting portions 361. After that, the first link 34 drives the first spline hub 31 to move through the first column 312. The first spline hub 31 slides axially on the body 10 relative to the first docking section. At the same time, the second link 35 drives the second spline hub 32 to move through the second column 322. The second spline hub 32 slides axially on the body 10 relative to the second docking section, thereby realizing the switching between the locked state and the unlocked state of the locking mechanism.

[0088] In another embodiment, the extending direction of the axis of the screw 331 can be set parallel to the radial direction of the worm gear 24. The length of the first link 34 is equal to the length of the second link 35. In the radial direction of the sleeve, the two connecting portions 361 are directly opposite to the first spline hub 31 or the second spline hub 32. Further, the first link 34 and the second link 35 can stably apply force to the body 10, so that the first docking section and the second docking section slide stably relative to each other axially on the body 10, and the stability of the stabilizer bar is further improved.

[0089] According to one aspect of this embodiment, an electronically controlled length-adjustable stabilizer bar structure is provided. This structure mainly includes: a stabilizer bar body 10, a first rod body 11, a second rod body 12, a first spline hub 31, a second spline hub 32, a second driving member 33, a nut 36, a first link 34, a second link 35, a first driving member 33, a worm gear 24, and a worm 23.

[0090] As Figure 1 、 2As shown in FIGS. 5 and 12, in the embodiment, the first driving member 33 is assembled to the vehicle frame through the first assembly hole 222, the first external spline 111 of the first rod body 11 is connected to the first internal spline 241 of the worm gear 24, and the second external spline 121 of the second rod body 12 is connected to the second internal spline 242 on the right side of the worm gear 24;

[0091] Further, as Figure 1 、 2 、9, the second driving member 33 is connected to the sub-frame through the second assembly hole 332. The output shaft of the second driving member 33 is a threaded screw 331, and the thread of the screw 331 is connected to the internal thread 362 of the nut 36;

[0092] Further, as Figure 10 shown, there is a connecting portion 361 on the left side of the nut 36, and a connecting portion 361 is also provided on the right side of the nut 36.

[0093] Further, as Figure 7 shown, the left first spline hub 31 includes: the first column 312 of the left first spline hub 31, the third internal spline 311 of the left first spline hub 31, and the first mounting hole 313 of the left first spline hub 31;

[0094] As Figure 8 shown, the right second spline hub 32 includes: the second column 322 of the right second spline hub 32, the fourth internal spline 321 of the right second spline hub 32, and the second mounting hole 323 of the right second spline hub 32.

[0095] As Figure 1 、 2 、7, 8 shown, the left connecting portion 361 of the nut 36 is connected to the first connecting rod 34, and the other end of the first connecting rod 34 is connected to the first column 312 of the left first spline hub 31; the right connecting portion 361 of the nut 36 is connected to the second connecting rod 35, and the other end of the second connecting rod 35 is connected to the second column 322 of the right first spline hub 31.

[0096] Further, the first column 312 and the first spline hub 31 can be rigidly connected by welding, and the second column 322 and the second spline hub 32 can be rigidly connected by welding.

[0097] Further, as Figure 1 、 2 、7, 8, 10, the first connecting rod 34 and the connecting portion 361 have rotational freedom, and the other end of the first connecting rod 34 and the first mounting hole 313 have rotational freedom; the second connecting rod 35 and the left connecting portion 361 have rotational freedom, and the other end of the second connecting rod 35 and the second mounting hole 323 have rotational freedom.

[0098] As Figure 1 、 2, as shown in Fig. 11, the first driving member is also connected to the subframe, and the first driving shaft 221 of the first driving member is rigidly connected to the worm 23.

[0099] When the length of the stabilizer bar needs to be adjusted, a command is sent to the control system. The control system first controls the rotation of the external thread of the output shaft of the second driving member 33. The external thread rotates the screw 331 to drive the nut 36 to translate rearward. The left connecting portion 361 of the nut 36 drives the first connecting rod 34, and the first connecting rod 34 drives the first column 312 of the first spline hub 31, and then drives the first spline hub 31 to move leftward along the first external spline 111 of the left section of the stabilizer bar; at the same time, the right connecting portion 361 of the nut 36 drives the second connecting rod 35, and the second connecting rod 35 drives the second column 322 of the second spline hub 32, and then drives the second spline hub 32 to move rightward along the second external spline 121 of the second docking section until the first spline hub 31 is separated from the first internal spline 241 on the left side of the worm gear 24, and the second spline hub 32 is separated from the second internal spline 242 on the right side of the worm gear 24. Then, the first driving member starts to work. The first driving member rotates clockwise or counterclockwise. The first driving shaft 221 drives the worm 23 to rotate clockwise or counterclockwise. The worm 23 drives the worm gear 24 to rotate clockwise or counterclockwise. The external threads 211 with the first helix direction and the external threads 212 with the second helix direction on the left and right sides (the first end (left side), the second end (right side)) of the adjusting rod 20 drive the internal threads 112 with the first helix direction of the first rod body 11 and the internal threads 122 with the second helix direction of the second rod body 12 to approach or move away simultaneously, so as to realize the adjustment of the length of the stabilizer bar. After the length of the stabilizer bar is adjusted, the first driving member is powered off, and the second driving member 33 rotates in the reverse direction, finally making the first spline hub 31 move rightward until it is rigidly connected to the first internal spline 241 of the worm gear 24. At the same time, making the second spline hub 32 on the right move leftward until it is rigidly connected to the second internal spline 242 of the worm gear 24. Thus, the length adjustment function is completed.

[0100] As Figure 5 shown, the adjusting rod 20 is a double-headed stud structure, and the first end and the second end are respectively connected to the first rod body 11 and the second rod body 12.

[0101] In this embodiment, since the two ends of the double-headed stud on both sides of the worm gear 24 are two threads with opposite helix directions, that is, the helix directions of the external threads 211 with the first helix direction and the external threads 212 with the second helix direction are opposite, it can make the internal threads 112 with the first helix direction of the first rod body 11 and the internal threads 122 with the second helix direction of the second rod body 12 move towards each other or in opposite directions simultaneously, which can ensure that the stabilizer bar is always in the central position of the whole vehicle, and at the same time, the length of the stabilizer bar can be extended or shortened at twice the speed, and the adjustment speed is faster. Since the stabilizer bar is always in the central position of the whole vehicle, the problem of the traditional stabilizer bar moving left and right can also be solved.

[0102] In addition, due to the characteristics of the worm gear 24 and the worm 23 themselves, the worm 23 can drive the worm gear 24, but the worm gear 24 cannot drive the worm 23. Therefore, after the length of the stabilizer bar is adjusted, the length of the stabilizer bar can be stably maintained at the adjusted length.

[0103] The technical problem to be solved is that for the existing stabilizer bar, its length cannot be adjusted or there are only a limited number of fixed positions with adjustable length, it cannot be intelligently adjusted, and continuous adjustment cannot be achieved. Through the motor, the worm gear 24 - worm 23, the lead screw - nut 36 drive, the double-slider drive, and the spline structure, the length of the stabilizer bar can be electronically controlled and steplessly adjusted. Without disassembling the stabilizer bar, the vehicle's anti-roll characteristics and steering characteristics can be quickly and simply adjusted, so as to match the optimal length of the stabilizer bar, improve the matching efficiency of the stabilizer bar. In addition, during the driver's driving process, commands can be sent to the control system according to the road conditions to control the length of the stabilizer bar, thereby adjusting the stiffness of the stabilizer bar and providing a better driving experience. In addition, this new structure has the characteristics of simple processing technology and reliable performance.

[0104] This embodiment has the following advantages:

[0105] (1) Since the thread directions of the two studs on both sides of the worm gear 24 are opposite, the external thread 211 with the first thread direction is left-handed and mates with the internal thread of the first rod body 11 with the first thread direction (left-handed). The external thread 212 with the second thread direction is right-handed and mates with the internal thread 122 of the second rod body 12 with the second thread direction (right-handed). When the worm gear 24 rotates, it can make the first rod body 11 and the second rod body 12 move towards each other or in opposite directions simultaneously, so that the length of the stabilizer bar can be extended or shortened at twice the speed, with higher adjustment efficiency. It can also ensure that the stabilizer bar is always in the center position of the whole vehicle, making the rigidity of the two sections of the stabilizer bar relative to the whole vehicle the same.

[0106] (2) Due to the characteristics of the worm gear 24 - worm 23 themselves, the worm 23 can drive the worm gear 24, but the worm gear 24 cannot drive the worm 23. Therefore, after the length of the stabilizer bar is adjusted, the length of the stabilizer bar can be stably maintained at the adjusted length.

[0107] (3) This solution can be adjusted without disassembly, that is, the lengths of the first rod body 11 and the second rod body 12 can be stably adjusted without disassembling and assembling the stabilizer bar, making the adjustment of the stabilizer bar performance more convenient, avoiding the trivial work of frequent disassembly and installation in the early stage of vehicle development, and improving the matching efficiency of the stabilizer bar.

[0108] (4) This solution basically does not change the outer diameter size of the original transmission stabilizer bar, so it will not affect the original torsional stiffness of the stabilizer bar, and will not additionally increase the material cost.

[0109] (5) The anti-roll bar of this solution adopts a multi-section combined structure. During use, if a certain section is knocked or damaged by an external force, the corresponding damaged section can be replaced separately, reducing the maintenance cost and saving resources.

[0110] In a second aspect, an embodiment of the present application provides a vehicle including the above anti-roll bar.

[0111] It can be understood that the vehicle in the embodiment of the present application can be all vehicles with the ability to move, including vehicles with autonomous driving or intelligent driving capabilities, such as manned vehicles (sedans, buses, coaches, minibuses, etc.), freight vehicles (ordinary trucks, vans, special vehicles (logistics distribution vehicles, patrol vehicles)), vehicles with entertainment functions, rescue vehicles (such as fire trucks, ambulances), etc.

[0112] It should be noted that the embodiments referred to as "one embodiment", "embodiment", "exemplary embodiment", "some embodiments", etc. in the specification may include specific features, structures, or characteristics, but not necessarily every embodiment includes such specific features, structures, or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. Moreover, when combining specific features, structures, or characteristics with an embodiment, implementing such features, structures, or characteristics in combination with other embodiments, whether explicitly or implicitly described, is within the knowledge scope of those skilled in the art.

[0113] It should be noted that in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including", or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article, or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article, or device. Without further limitations, the element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article, or device including the said element.

[0114] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A stabilizer bar, characterized in that, Comprising: A main body (10) including a first rod body (11) and a second rod body (12) which are oppositely arranged. A first external spline (111) is provided on the first rod body (11), and a second external spline (121) is provided on the second rod body (12). A length adjustment mechanism (20) including an adjustment rod (21) and a first driving mechanism for driving the adjustment rod (21) to rotate. The adjustment rod (21) includes a first threaded rod (211) screwed to the first rod body (11) in a first rotation direction and a second threaded rod (212) screwed to the second rod body (12) in a second rotation direction. The first rotation direction is opposite to the second rotation direction. A first internal spline (241) and a second internal spline (242) are fixedly provided on the adjustment rod (21). A locking mechanism (30) including a first spline hub (31) sleeved on the first rod body (11) and a second spline hub (32) sleeved on the second rod body (12). A third internal spline (311) which axially slides and cooperates with the first external spline (111) is provided on the first spline hub (31), and a fourth internal spline (321) which axially slides and cooperates with the second external spline (121) is provided on the second spline hub (32). During the process of the first spline hub (31) sliding along the first external spline (111), the third internal spline (311) can be locked and cooperated with or unlocked from the first internal spline (241). During the process of the second spline hub (32) sliding along the second external spline (121), the fourth internal spline (321) can be locked and cooperated with or unlocked from the second internal spline (242).

2. The stabilizer bar according to claim 1, characterized in that, The first driving mechanism includes a first driving member (22), a worm (23), and a worm gear (24). The worm gear (24) is sleeved on the adjustment rod (21). The first internal spline (241) and the second internal spline (242) are fixed on both sides of the worm gear (24). The worm (23) is assembled to the first driving member (22), and the worm (23) is in transmission connection with the worm gear (24) so that the worm gear (24) drives the adjustment rod (21) to rotate.

3. The stabilizer bar according to claim 1, characterized in that, The first external spline (111) and the second external spline (121) are spline grooves extending along the axial direction of the main body. In the locked and cooperating state, the third internal spline (311) meshes with the first external spline (111) and the first internal spline (241), and the fourth internal spline (321) meshes with the second external spline (121) and the second internal spline (242). In the unlocked and cooperating state, the third internal spline (311) meshes with the first external spline (111), the third internal spline (311) is away from the first internal spline (241), the fourth internal spline (321) meshes with the second external spline (121), and the fourth internal spline (321) is away from the second internal spline (242).

4. The stabilizer bar according to claim 1, characterized in that, The locking mechanism (30) further includes a second driving mechanism for driving the first spline hub (31) and the second spline hub (32) to move relatively closer or farther away axially.

5. The stabilizer bar according to claim 4, characterized in that, The second driving mechanism further includes a second driving member (33) and a transmission assembly. One end of the transmission assembly is assembled to the second driving member (33), and the other end of the transmission assembly is connected to the first spline hub (31) and the second spline hub (32). The second driving member (33) drives the first spline hub (31) and the second spline hub (32) to move relatively farther away or closer through the transmission assembly.

6. The stabilizer bar according to claim 5, characterized in that, The transmission assembly includes a telescopic member, a first connecting rod (34) and a second connecting rod (35). The telescopic member has an assembly portion and a connecting portion (361). The assembly portion is assembled and connected to the second driving member (33). One end of the first connecting rod (34) is rotatably connected to the connecting portion (361), and the other end of the first connecting rod (34) is rotatably connected to the first spline hub (31). One end of the second connecting rod (35) is rotatably connected to the connecting portion (361), and the other end of the second connecting rod (35) is rotatably connected to the second spline hub (32). The second driving member (33) is used to drive the telescopic member to move closer to or away from the body (10) along the radial direction of the body (10).

7. The stabilizer bar according to claim 6, characterized in that, Along the radial direction of the first spline hub (31), the first spline hub (31) is provided with a first upright column (312). Along the radial direction of the second spline hub (32), the second spline hub (32) is provided with a second upright column (322). One end of the first connecting rod (34) is rotatably connected to the first upright column (312), and one end of the second connecting rod (35) is rotatably connected to the second upright column (322).

8. The stabilizer bar according to claim 6, characterized in that, The telescopic member includes a screw rod (331) and a nut (36) screwed to the screw rod (331). The screw rod (331) is assembled to the second driving member (33) through the assembly portion. The connecting portion (361) includes two, and the two connecting portions (361) are respectively arranged on both sides of the nut (36). One of the connecting portions (361) is rotatably connected to the end of the first connecting rod (34), and the other connecting portion (361) is rotatably connected to the end of the second connecting rod (35).

9. The stabilizer bar according to claim 1, characterized in that, Along the axial direction of the first rod body (11), the first rod body (11) is provided with a first cavity. A thread with the first helix direction is provided between one end of the adjusting rod (21) and the first cavity. Along the axial direction of the second rod body (12), the second rod body (12) is provided with a second cavity. A thread with the second helix direction is provided between the other end of the adjusting rod (21) and the second cavity.

10. A vehicle, characterized in that, Including the stabilizer bar according to any one of claims 1-9.

Images