Steering assembly for vehicle and vehicle with same

Abstract

The utility model discloses a steering assembly for a vehicle and the vehicle with the steering assembly, and the steering assembly comprises a shell, a first containing cavity, a second containing cavity, a steering assembly and a steering assembly, and the shell is internally provided with the first containing cavity extending in the axial direction; the driving motor is arranged in the first accommodating cavity, the transmission part is connected with the driving end so as to be suitable for moving in the first accommodating cavity, and a second accommodating cavity is formed in the transmission part; at least part of the driving rod is movably arranged in the first containing cavity and the second containing cavity and connected with the transmission piece. The driving motor is suitable for driving the transmission part to move so as to drive the driving rod to reciprocate in the axial direction. According to the steering assembly designed by the utility model, the driving motor is suitable for driving the transmission part to move so as to drive the driving rod to reciprocate in the axial direction, so that the wheels are driven to steer, and compared with a traditional synchronous belt speed reducing mechanism and a worm and gear speed reducing mechanism, the steering assembly is simpler in structure and more convenient to use. Meanwhile, noise generated when the steering assembly works can be reduced, and therefore noise generated when the vehicle runs is reduced.

Description

Technical Field

[0001] The utility model relates to the field of vehicles, in particular to a steering component for a vehicle and a vehicle having the same. Background Art

[0002] In the related technologies, with the development of automobile electronics, intelligence and humanization, the wire-controlled steering system has eliminated the intermediate transmission shaft. The steering wheel and the steering actuator are transmitted by electrical signals. There is no direct mechanical transmission path between the steering mechanism and the driver, which is safer. In the existing technology, the wire-controlled electric steering gear solutions are mostly synchronous belt reduction mechanisms or worm gear reduction mechanisms. The working principle of the system is to transmit the steering signal of the whole vehicle to the steering device through the whole vehicle wiring harness. The wire-controlled steering gear motor rotates, driving the synchronous belt reduction mechanism or the worm gear mechanism, and then driving the screw or rack axial movement. However, the synchronous belt reduction mechanism or the worm gear reduction mechanism plays the role of deceleration and increasing power in the process of transmitting torque, with a large energy loss, and a large number of parts, a complex assembly process, and a high cost. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to propose a steering assembly for a vehicle. According to the steering assembly designed by the utility model, its driving motor is suitable for driving the transmission member to move so as to drive the driving rod to move back and forth along the axial direction, thereby driving the wheel to turn. Compared with the traditional synchronous belt reduction mechanism and the worm gear reduction mechanism, the steering assembly of the present application has a simpler structure and can reduce the noise of the steering assembly during operation, thereby reducing the noise of the vehicle during operation.

[0004] The utility model also provides a vehicle with the steering assembly.

[0005] According to the utility model, the steering assembly includes: a shell, a first accommodating chamber extending in the axial direction is formed in the shell; a drive motor, the drive motor is arranged in the first accommodating chamber, and the drive motor has a drive end; a transmission member, the transmission member is connected to the drive end so as to be suitable for moving in the first accommodating chamber, and a second accommodating chamber is formed on the transmission member; a drive rod, at least part of the drive rod is movably arranged in the first accommodating chamber, at least part of the drive rod is accommodated in the second accommodating chamber and connected to the transmission member, and both ends of the drive rod are respectively suitable for connecting with the wheel to drive the wheel to turn; wherein the drive motor is suitable for driving the transmission member to move so as to drive the drive rod to reciprocate along the axial direction.

[0006] According to the steering assembly of the utility model, its driving motor is suitable for driving the transmission member to move so as to drive the driving rod to move back and forth axially, thereby driving the wheel to steer. Compared with the traditional synchronous belt reduction mechanism and the worm gear reduction mechanism, the steering assembly of the present application has a simpler structure and no intermediate power transmission process, thereby reducing the efficiency loss in the intermediate power transmission process and improving the internal power transmission efficiency of the steering assembly. At the same time, it can reduce the noise of the steering assembly during operation, thereby reducing the noise when the vehicle is running.

[0007] According to some embodiments of the utility model, the drive motor is configured as a plurality, the plurality of drive motors are arranged sequentially in the axial direction, the transmission member is configured as a plurality corresponding to the drive motors one by one, and the driving ends of the plurality of drive motors are respectively connected to the drive rod through the corresponding transmission members.

[0008] According to some embodiments of the utility model, the driving rod includes: a connecting rod, which is constructed to be a plurality of connecting rods corresponding one to one to the driving motor, and the plurality of connecting rods are arranged in sequence in the axial direction; a locking member, which is arranged between two adjacent connecting rods and is suitable for connecting and fixing the two adjacent connecting rods; wherein the plurality of transmission members are respectively sleeved on the outer periphery of the corresponding connecting rod and connected to the connecting rod.

[0009] According to some embodiments of the utility model, the inner circumferential wall of the transmission member is provided with a first thread, and the outer circumferential wall of the connecting rod is provided with a second thread matching the first thread; wherein at least a portion of the locking member is suitable for circumferentially stopping with the shell to limit the circumferential rotation of the connecting rod.

[0010] According to some embodiments of the utility model, the locking member includes: a limit plate, which is provided with a limit protrusion extending in the radial direction; a connecting shaft, which is constructed into two and is respectively arranged on both sides of the limit plate in the thickness direction, and the two connecting shafts are respectively suitable for connecting with two adjacent connecting rods; wherein the inner peripheral wall of the first accommodating cavity is formed with a limit groove extending in the axial direction and suitable for accommodating the limit protrusion.

[0011] According to some embodiments of the utility model, the locking member also includes: a locking plate, which is constructed in two pieces and is respectively arranged on both sides of the limit plate in the thickness direction, and the locking plate is suitable for deforming when the connecting shaft is connected to the connecting rod to maintain the coaxiality of the connecting shaft and the connecting rod.

[0012] According to some embodiments of the utility model, the housing includes: a motor housing, the motor housing being constructed as a plurality of housings spaced apart in the axial direction, a mounting cavity suitable for accommodating the driving end being formed in the motor housing; a locking housing, the locking housing being arranged between two adjacent motor housings, a mounting channel connected to the mounting cavity being formed in the locking housing, the inner wall of the mounting channel being formed with the limiting groove; wherein the mounting channel and the plurality of mounting cavities are jointly constructed as the first accommodating cavity.

[0013] According to some embodiments of the utility model, the locking shell includes: a shell body, an inner cavity is formed in the shell body, and the inner wall of the inner cavity is formed with a mounting groove which is recessed in the radial direction and extends in the axial direction; a limiting sleeve, the inner circumferential wall of the limiting sleeve is formed with the limiting groove, and the outer circumferential wall of the limiting sleeve is formed with a mounting protrusion extending in the radial direction, and the mounting protrusion is accommodated in the mounting groove.

[0014] According to some embodiments of the utility model, it also includes: a sensor component, which is arranged between two adjacent motor housings; wherein the limiting plate is provided with a sensing device, and the sensor component is also suitable for detecting the axial movement of the sensing device.

[0015] A vehicle according to another embodiment of the present invention will be briefly described below.

[0016] The vehicle according to the utility model includes the steering assembly described in any one of the above embodiments. Since the vehicle according to the utility model is provided with the steering assembly of the above embodiments, the structure of the steering assembly of the vehicle is simpler, so that the production efficiency of the vehicle is high, and the noise during the operation of the vehicle is small, thereby improving user satisfaction.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a structural schematic diagram of a steering assembly according to an embodiment of the utility model;

[0020] Figure 2 is a cross-sectional view of a steering assembly according to an embodiment of the utility model;

[0021] Figure 3 It is a schematic diagram of the assembly of the connecting rod, the locking member, the locking housing and the limiting sleeve according to an embodiment of the utility model;

[0022] Figure 4 It is an exploded view of a locking member according to an embodiment of the utility model.

[0023] Reference numerals: 1. Steering assembly;

[0024] 11. Shell body; 12. Limit sleeve; 13. Motor shell; 14. Sealing shell; 15. Sealing sleeve;

[0025] 21. stator; 22. rotor;

[0026] 30. Transmission parts;

[0027] 41. Connecting rod; 42. Pull rod;

[0028] 50, locking member; 51, limiting plate; 511, limiting protrusion; 512, limiting hole; 52, connecting shaft; 53, locking sheet; 531, limiting protrusion;

[0029] 60. Sensor assembly. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0035] In the related technologies, with the development of automobile electronics, intelligence and humanization, the wire-controlled steering system has eliminated the intermediate transmission shaft. The steering wheel and the steering actuator are transmitted by electrical signals. There is no direct mechanical transmission path between the steering mechanism and the driver, which is safer. In the existing technology, the wire-controlled electric steering gear solutions are mostly synchronous belt reduction mechanisms or worm gear reduction mechanisms. The working principle of the system is to transmit the steering signal of the whole vehicle to the steering device through the whole vehicle wiring harness. The wire-controlled steering gear motor rotates, driving the synchronous belt reduction mechanism or the worm gear mechanism, and then driving the screw or rack axial movement. However, the synchronous belt reduction mechanism or the worm gear reduction mechanism plays the role of deceleration and increasing power in the process of transmitting torque, with a large energy loss, and a large number of parts, a complex assembly process, and a high cost.

[0036] Reference below Figure 1-Figure 4 A steering assembly 1 for a vehicle according to an embodiment of the present invention is described.

[0037] like Figure 1-Figure 4As shown, the steering assembly 1 according to the utility model includes: a shell, a drive motor, a transmission member 30 and a drive rod, a first accommodating chamber extending in the axial direction is formed in the shell, the drive motor is arranged in the first accommodating chamber, the drive motor has a drive end, the transmission member 30 is connected to the drive end so as to be suitable for moving in the first accommodating chamber, a second accommodating chamber is formed on the transmission member 30, at least part of the drive rod is movably arranged in the first accommodating chamber, at least part of the drive rod is accommodated in the second accommodating chamber and connected to the transmission member 30, and both ends of the drive rod are respectively suitable for connecting with the wheel to drive the wheel to turn; wherein the drive motor is suitable for driving the transmission member 30 to move so as to drive the drive rod to reciprocate along the axial direction.

[0038] In some embodiments, a driving motor and a transmission member 30 are provided in the first accommodating chamber, the driving end of the driving motor is connected to the transmission member 30, at least part of the driving rod is accommodated in the first accommodating chamber and the second accommodating chamber, and the driving rod is connected to the transmission member 30. When the driving motor is working, the driving end can move (the movement can include simple axial movement and radial rotation), the movement of the driving end can move the transmission member 30, and the movement of the transmission member 30 can drive the driving rod to move back and forth in the axial direction. Since the two ends of the driving rod on the shaft are rotatably connected to the two steering wheels of the vehicle respectively, when the driving rod moves back and forth in the axial direction, the two steering wheels can be deflected, thereby turning the vehicle. It is worth mentioning that the driving motor is suitable for receiving the steering signal of the steering wheel of the vehicle and working according to the steering signal. It is worth mentioning that a driving motor is provided in the first accommodating chamber, and the driving motor can be one or more, which is not limited here.

[0039] It is understandable that the steering assembly 1 of the present application uses a driving motor as a power source to drive the steering wheel to deflect. Compared with the traditional synchronous belt reduction mechanism and the worm gear reduction mechanism, the steering assembly 1 of the present application has fewer parts, making the steering assembly 1 of the present application simpler in structure, simplifying the manufacturing process of the steering assembly 1, and improving the production process assurance capability, thereby making the production efficiency of the steering assembly 1 of the present application higher, while optimizing the assemblability and disassembly of the steering assembly 1, and making the cost of the steering assembly 1 lower. Of course, since the driving motor of the present application can directly drive the driving rod to move in the axial direction, the intermediate parts transmission process is reduced, thereby reducing the efficiency loss in the intermediate parts transmission process, and improving the internal power transmission efficiency of the steering assembly 1.

[0040] At the same time, from the perspective of increasing the power of the steering assembly 1, the steering assembly 1 of the present application only needs to increase the number of drive motors, and the multiple drive motors only need to be arranged in sequence in the axial direction, which will not cause the radial volume of the steering assembly 1 to increase. In contrast, the traditional synchronous belt reduction mechanism and worm gear reduction mechanism require more reduction gears or other complex structures, which will increase the radial volume of the steering assembly 1, thereby increasing the difficulty of assembling the steering assembly 1.

[0041] It is worth mentioning that the traditional synchronous belt reduction mechanism and the worm gear reduction mechanism produce relatively large noise during operation. In contrast, the steering assembly 1 of the present application uses a drive motor as a power source, and the drive motor produces low noise during operation, thereby making the steering assembly 1 of the present application produce low noise during operation, thereby reducing the noise during vehicle operation and improving the user's driving experience.

[0042] In some embodiments, the drive motor may be a linear telescopic motor, in which case the transmission member 30 is fixedly connected to the drive rod and the drive end, respectively, so that the drive motor can cause the drive end to reciprocate in the axial direction, thereby causing the transmission member 30 to reciprocate in the axial direction, and then causing the drive rod to reciprocate in the axial direction. In other embodiments, the drive motor may be a rotary motor, in which case the transmission member 30 is fixedly connected to the drive end, and the transmission member 30 is transmission-connected to the drive rod (for example, the transmission member 30 is threadedly connected to the drive rod), so that the drive motor can cause the drive end to rotate, and the rotation of the drive end can drive the transmission member 30 to rotate, and the rotation of the transmission member 30 can drive the drive rod to reciprocate in the axial direction, which is not limited here.

[0043] According to the steering assembly 1 involved in the present invention, its driving motor is suitable for driving the transmission member 30 to move so as to drive the driving rod to move back and forth along the axial direction, thereby driving the wheel to steer. Compared with the traditional synchronous belt reduction mechanism and the worm gear reduction mechanism, the steering assembly 1 of the present application has a simpler structure and no intermediate power transmission process, thereby reducing the efficiency loss in the intermediate power transmission process, improving the internal power transmission efficiency of the steering assembly 1, and at the same time can reduce the noise of the steering assembly 1 during operation, thereby reducing the noise when the vehicle is running.

[0044] According to some embodiments of the present invention, Figure 1-Figure 4 As shown, the drive motors are configured as multiple, and the multiple drive motors are arranged in sequence in the axial direction. The transmission members 30 are configured as multiple corresponding to the drive motors one by one, and the driving ends of the multiple drive motors are respectively connected to the drive rod through the corresponding transmission members 30.

[0045] It can be understood that a plurality of drive motors and a plurality of transmission members 30 are arranged in the first accommodating cavity, and the plurality of drive motors correspond to the plurality of transmission members 30 one by one, respectively. The driving end of each drive motor is fixedly connected to the corresponding transmission member 30, respectively, and each transmission member 30 is connected to a drive rod (the connection between the transmission member 30 and the drive rod may be a fixed connection, a transmission connection, or other connections, etc., which are not limited here). Thus, the plurality of drive motors can jointly drive the drive rod to reciprocate in the axial direction, thereby making the power of the drive rod better, that is, the output power of the steering assembly 1 can be better through the above arrangement, thereby improving the steering ability of the vehicle.

[0046] According to some embodiments of the present invention, Figure 1-Figure 4 As shown, the driving rod includes: a connecting rod 41 and a locking member 50. The connecting rod 41 is constructed to be a plurality of ones corresponding to the driving motors one by one. The plurality of connecting rods 41 are arranged in sequence in the axial direction. The locking member 50 is arranged between two adjacent connecting rods 41 and is suitable for connecting and fixing the two adjacent connecting rods 41. Among them, the plurality of transmission members 30 are respectively sleeved on the outer periphery of the corresponding connecting rods 41 and connected to the connecting rods 41.

[0047] In some embodiments, the driving rod includes multiple connecting rods 41 and multiple locking members 50. The multiple connecting rods 41 are arranged in sequence in the axial direction, and two adjacent connecting rods 41 are connected by a locking member 50. The multiple transmission members 30 correspond to the multiple connecting rods 41 one by one and are sleeved on the outer periphery of the corresponding connecting rods 41. Of course, since each transmission member 30 is respectively connected to the corresponding connecting rod 41, the multiple driving motors drive the corresponding connecting rods 41 through the corresponding transmission members 30, and the multiple connecting rods 41 are respectively subjected to axial driving force and move in the axial direction, thereby jointly driving the steering wheels of the vehicle to deflect, thereby making the vehicle steer.

[0048] It is worth noting that the driving rod further includes a pull rod 42, which is constructed as two free ends of the connecting rods 41 rotatably disposed at the two ends, and the free ends of the two pull rods 42 are respectively connected to the steering wheels of the vehicle.

[0049] According to some embodiments of the present invention, Figure 1-Figure 4 As shown, the inner circumferential wall of the transmission member 30 is provided with a first thread, and the outer circumferential wall of the connecting rod 41 is provided with a second thread matching the first thread; wherein at least a portion of the locking member 50 is suitable for circumferentially abutting against the shell to limit the circumferential rotation of the connecting rod 41.

[0050] In some embodiments, the driving motor is constructed as a rotating motor. In this case, the driving motor includes a stator 21 and a rotor 22. The rotor 22 is constructed as the driving end of the driving motor. The rotor 22 is fixedly connected to the transmission member 30. The inner circumferential wall of the transmission member 30 is provided with a first thread (that is, the inner circumferential wall of the second accommodating chamber is provided with a first thread), and the outer circumferential wall of the connecting rod 41 is provided with a second thread. The first thread cooperates with the second thread. When the driving motor is working, the rotor 22 can rotate. The rotation of the rotor 22 causes the transmission member 30 to rotate. The rotation of the rotating member can drive the connecting rod 41 to reciprocate in the axial direction.

[0051] It is worth mentioning that two adjacent connecting rods 41 are connected by a locking member 50, and at least a portion of the locking member 50 is suitable for abutting against the shell in the circumferential direction, so that when the locking member 50 has a tendency to rotate circumferentially relative to the shell, the locking member 50 is prevented from rotating, thereby avoiding the connecting rod 41 from rotating circumferentially relative to the shell, that is, only the axial movement of the connecting rod 41 is retained. Therefore, through the above-mentioned arrangement, when the drive motor is working, the drive rod can only move back and forth in the axial direction, thereby improving the power transmission efficiency from the drive motor to the connecting rod 41, and improving the output power of the steering assembly 1.

[0052] In some embodiments, the transmission member 30 can be constructed as the inner ring of a bearing (the bearing includes an inner ring and an outer ring, and the inner ring can rotate relative to the outer ring. Of course, a rolling member can be arranged between the inner ring and the outer ring, and the rolling member can be a ball, etc., which is not limited here), and the outer ring of the bearing is connected to the housing. Therefore, the above arrangement can avoid the transmission member 30 from contacting the housing, thereby avoiding friction loss caused by the contact between the transmission member 30 and the housing, and improving the power transmission efficiency from the drive motor to the connecting rod 41. Preferably, the projection of the outer ring of the bearing in the radial direction is located inside the inner ring of the bearing. Therefore, the above arrangement can increase the length dimension of the first thread in the axial direction, thereby making the connection between the transmission member 30 and the connecting rod 41 more stable.

[0053] According to some embodiments of the present invention, Figure 1-Figure 4 As shown, the locking member 50 includes: a limit plate 51 and a connecting shaft 52, the limit plate 51 is provided with a limit protrusion 511 extending in the radial direction, the connecting shaft 52 is constructed into two and respectively arranged on both sides of the limit plate 51 in the thickness direction (the thickness direction of the limit plate 51 is parallel to the axial direction of the connecting rod 41), and the two connecting shafts 52 are respectively suitable for connecting with two adjacent connecting rods 41; wherein the inner peripheral wall of the first accommodating cavity is formed with a limit groove extending in the axial direction and suitable for accommodating the limit protrusion 511.

[0054] In some embodiments, the locking member 50 includes a limiting plate 51 and two connecting shafts 52, the two connecting shafts 52 are respectively arranged on both sides of the limiting plate 51 in the thickness direction, and the two connecting rods 41 are respectively connected to two adjacent connecting rods 41. At least part of the outer peripheral wall of the limiting plate 51 extends radially away from the connecting shaft 52 to form a limiting protrusion 511, and the inner peripheral wall of the first accommodating cavity is provided with a limiting groove recessed radially away from the connecting rod 41, the limiting groove extends in the axial direction, and the limiting protrusion 511 is accommodated in the limiting groove, so that when the driving motor drives the connecting rod 41 to reciprocate in the axial direction, the inner peripheral wall of the limiting groove can limit the outer peripheral wall of the limiting protrusion 511, so that the limiting protrusion 511 can only move in the axial direction, and then the connecting rod 41 can only move in the axial direction.

[0055] It is worth mentioning that the two connecting shafts 52 and the limit plate 51 can be integrally formed or welded, etc., and there is no restriction here. Of course, the outer peripheral walls of the two connecting shafts 52 are provided with a third thread, and the end of the connecting rod 41 is provided with a connecting hole extending in the axial direction and open, and the inner peripheral wall of the connecting hole is provided with a fourth thread. The third thread cooperates with the fourth thread to connect the connecting shaft 52 with the connecting rod 41. Preferably, after the connecting rod 41 is connected to the connecting shaft 52, welding or bonding can be used to strengthen the connection stability between the connecting rod 41 and the connecting shaft 52.

[0056] According to some embodiments of the present invention, Figure 1-Figure 4 As shown, the locking member 50 also includes: a locking plate 53, which is constructed into two and respectively arranged on both sides of the limit plate 51 in the thickness direction. The locking plate 53 is suitable for deforming when the connecting shaft 52 is connected to the connecting rod 41 to maintain the coaxiality of the connecting shaft 52 and the connecting rod 41.

[0057] In some embodiments, the two locking plates 53 are respectively provided with mounting holes, and the two locking plates 53 are respectively sleeved on the two connecting shafts 52 through their mounting holes, and the two locking plates 53 are respectively provided on both sides of the limiting plate 51 in the thickness direction. It can be understood that the third thread of the outer peripheral wall of the connecting shaft 52 and the fourth thread of the inner peripheral wall of the connecting hole are threadedly matched to connect the connecting shaft 52 with the connecting rod 41. Due to the thread processing error and the manufacturing error of the connecting shaft 52 and the connecting rod 41, the coaxiality of the connecting shaft 52 and the connecting rod 41 after connection cannot be guaranteed. The present application arranges locking plates 53 on both sides of the limiting plate 51 in the thickness direction, and the locking plates 53 are suitable for deformation when the connecting shaft 52 is connected to the connecting rod 41, so as to maintain the coaxiality of the connecting shaft 52 and the connecting rod 41, so that the coaxiality of the driving rod can be guaranteed, so that the driving rod and the driving motor have better matching, and then the output of the steering assembly 1 is more stable.

[0058] Preferably, the two side walls of the limiting plate 51 in the thickness direction are respectively provided with a plurality of limiting holes 512, and the plurality of limiting holes 512 extend in the thickness direction away from the connecting shaft 52, and at least a portion of the locking plate 53 protrudes toward the limiting plate 51 to form a limiting protrusion 531, and the limiting protrusion 531 is accommodated in the limiting hole 512 to prevent the locking plate 53 from rotating in the circumferential direction relative to the limiting plate 51, so that the deformation of the locking plate 53 is easier to control, thereby making the coaxiality of the connecting shaft 52 and the connecting rod 41 better after connection.

[0059] According to some embodiments of the present invention, Figure 1-Figure 4 As shown, the housing includes: a motor housing 13 and a locking housing. The motor housing 13 is constructed to be a plurality of housings spaced apart in the axial direction. A mounting cavity suitable for accommodating the driving end is formed in the motor housing 13. The locking housing is arranged between two adjacent motor housings 13. A mounting channel connected to the mounting cavity is formed in the locking housing. A limiting groove is formed on the inner wall of the mounting channel. The mounting channel and the plurality of mounting cavities are jointly constructed as a first accommodating cavity.

[0060] In some embodiments, the motor housing 13 is constructed in multiple configurations, and the multiple motor housings 13 are spaced apart in the axial direction, and a locking housing is arranged between adjacent motor housings 13, and the locking housing is suitable for connecting two adjacent motor housings 13, and an installation cavity is formed in the motor housing 13, and an installation channel is formed in the locking housing, and the two ends of the installation channel are respectively connected to the installation cavities on both sides, and the multiple installation cavities and the multiple installation channels are jointly constructed as a first accommodating cavity. It is worth noting that the inner wall of the installation channel has a limiting groove suitable for accommodating the limiting protrusion 511, and the limiting protrusion 511 cooperates with the limiting groove to prevent the connecting rod 41 from rotating in the circumferential direction.

[0061] In some embodiments, the housing further includes a sealing housing 14, which is constructed in two pieces, and the free ends of the motor housing 13 at the two ends are respectively provided with sealing housings 14, and the sealing housings 14 are suitable for sealing the installation cavity. Of course, the housing can also include a sealing sleeve 15, which is sleeved on the sealing housing 14 and at least part of the outer periphery of the pull rod 42, and the sealing sleeve 15 is suitable for isolating the interior of the steering assembly 1 from the external environment, so as to prevent dust or water from the external environment from entering the interior of the steering assembly 1.

[0062] According to some embodiments of the present invention, Figure 1-Figure 4 As shown, the locking shell includes: a shell body 11 and a limiting sleeve 12, an inner cavity is formed in the shell body 11, the inner wall of the inner cavity is formed with a mounting groove which is recessed in the radial direction and extends in the axial direction, the inner circumferential wall of the limiting sleeve 12 is formed with a limiting groove, the outer circumferential wall of the limiting sleeve 12 is formed with a mounting protrusion which extends in the radial direction, and the mounting protrusion is accommodated in the mounting groove.

[0063] In some embodiments, an inner cavity is formed inside the shell body 11, and an inner circumferential wall of the inner cavity is formed with a mounting groove, which extends in the axial direction and is recessed radially away from the connecting rod 41. The outer circumferential wall of the limit sleeve 12 is formed with a mounting protrusion extending radially toward the shell body 11, and the mounting protrusion is accommodated in the mounting groove to prevent the limit sleeve 12 from rotating relative to the shell body 11. The inner circumferential wall of the limit sleeve 12 forms a limiting groove, which is suitable for accommodating a limiting protrusion 511 to prevent the limiting plate 51 from rotating relative to the limiting sleeve 12. Therefore, the above-mentioned arrangement can prevent the connecting rod 41 from rotating relative to the shell body 11, so that the driving rod only has reciprocating movement along the axial direction.

[0064] According to some embodiments of the present invention, Figure 1-Figure 4 As shown, the steering assembly 1 also includes: a sensor assembly 60, which is arranged between two adjacent motor housings 13; wherein a sensing device is arranged on the limit plate 51, and the sensor assembly 60 is also suitable for detecting the axial movement of the sensing device. It can be understood that a sensing device is arranged on the limit plate 51, and the sensing device can be arranged on the limit protrusion 511, and the sensor assembly 60 is suitable for detecting the axial movement of the sensing device, thereby detecting the axial movement of the limit plate 51, and then detecting the axial movement of the drive rod to monitor the deflection angle of the steering wheel. Of course, the sensor assembly 60 is connected to the controller of the drive motor, and the controller can adjust the operation of the drive motor according to the detection signal of the sensor assembly 60, so that the steering assembly 1 can control the steering wheel more accurately.

[0065] In some embodiments, the diameter of the motor housing 13 is larger than the diameter of the locking housing, thereby providing an installation space between two adjacent motor housings 13 and the locking housing, and the sensor assembly 60 is disposed in the installation space and connected to the locking housing and / or the motor housing 13. Thus, through the above-mentioned arrangement, the axial projection of the sensor assembly 60 can at least partially overlap with the axial projection of the motor housing 13, thereby reducing the radial size of the steering assembly 1.

[0066] The vehicle according to the present utility model is briefly described below.

[0067] The vehicle according to the utility model is provided with a steering assembly 1 according to the above-mentioned embodiment. Since the vehicle according to the utility model is provided with the steering assembly 1 described in any one of the above-mentioned embodiments, the structure of the steering assembly 1 of the vehicle is simpler, so that the production efficiency of the vehicle is high, and the noise during the operation of the vehicle is small, thereby improving user satisfaction.

[0068] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0069] Although embodiments of the present invention have been shown and described above, changes, modifications, substitutions and variations may be made to the embodiments described above.

Claims

1. A steering assembly for a vehicle, characterized in that: include: A housing, wherein a first accommodating cavity extending in the axial direction is formed in the housing; A driving motor, wherein the driving motor is disposed in the first accommodating cavity and has a driving end; A transmission member (30), the transmission member (30) being connected to the driving end so as to be suitable for moving in the first accommodation, and a second accommodation cavity being formed on the transmission member (30); a driving rod, at least a portion of which is movably disposed in the first accommodating cavity, at least a portion of which is accommodated in the second accommodating cavity and connected to the transmission member (30), and both ends of the driving rod are respectively suitable for being connected to the wheels to drive the wheels to turn; in The driving motor is suitable for driving the transmission member (30) to move so as to drive the driving rod to reciprocate along the axial direction.

2. The steering assembly for a vehicle according to claim 1, characterized in that: The drive motors are configured to be multiple, and the multiple drive motors are arranged in sequence in the axial direction. The transmission members (30) are configured to be multiple, corresponding to the drive motors one by one, and the drive ends of the multiple drive motors are respectively connected to the drive rod through the corresponding transmission members (30).

3. The steering assembly for a vehicle according to claim 2, characterized in that: The driving rod comprises: A connecting rod (41), wherein the connecting rod (41) is configured to be a plurality of connecting rods corresponding one to one to the driving motors, and the plurality of connecting rods (41) are sequentially arranged in the axial direction; A locking member (50), wherein the locking member (50) is disposed between two adjacent connecting rods (41) and is suitable for connecting and fixing the two adjacent connecting rods (41); wherein The plurality of transmission members (30) are respectively sleeved on the outer circumference of the corresponding connecting rod (41) and connected to the connecting rod (41).

4. The steering assembly for a vehicle according to claim 3, characterized in that: The inner peripheral wall of the transmission member (30) is provided with a first thread, and the outer peripheral wall of the connecting rod (41) is provided with a second thread matching the first thread; wherein At least a portion of the locking member (50) is adapted to abut against the housing in the circumferential direction to limit the rotation of the connecting rod (41) in the circumferential direction.

5. The steering assembly for a vehicle according to claim 3, characterized in that: The locking member (50) comprises: A limiting plate (51), wherein the limiting plate (51) is provided with a limiting protrusion (511) extending in the radial direction; A connecting shaft (52), wherein the connecting shaft (52) is constructed in two pieces and is respectively arranged on both sides of the limiting plate (51) in the thickness direction, and the two connecting shafts (52) are respectively suitable for connecting to two adjacent connecting rods (41); wherein The inner peripheral wall of the first accommodating cavity is formed with a limiting groove extending in the axial direction and suitable for accommodating the limiting protrusion (511).

6. The steering assembly for a vehicle according to claim 5, characterized in that: The locking member (50) further comprises: a locking plate (53), wherein the locking plates (53) are constructed in two pieces and are respectively arranged on both sides of the limiting plate (51) in the thickness direction, and the locking plates (53) are suitable for deforming when the connecting shaft (52) is connected to the connecting rod (41) to maintain the coaxiality of the connecting shaft (52) and the connecting rod (41).

7. The steering assembly for a vehicle according to claim 5, characterized in that: The housing comprises: A motor housing (13), wherein the motor housing (13) is configured to be a plurality of motor housings spaced apart in the axial direction, and a mounting cavity suitable for accommodating the drive end is formed in the motor housing (13); A locking housing, the locking housing being arranged between two adjacent motor housings (13), the locking housing being provided with a mounting channel communicating with the mounting cavity, the inner wall of the mounting channel being provided with the limiting groove; wherein The installation channel and the plurality of installation cavities together form the first accommodating cavity.

8. The steering assembly for a vehicle according to claim 7, characterized in that: The locking housing comprises: A shell body (11), wherein an inner cavity is formed in the shell body (11), and an inner wall of the inner cavity is formed with a mounting groove which is recessed in the radial direction and extends in the axial direction; A limiting sleeve (12), wherein the limiting groove is formed on the inner peripheral wall of the limiting sleeve (12), and a mounting protrusion extending in the radial direction is formed on the outer peripheral wall of the limiting sleeve (12), and the mounting protrusion is accommodated in the mounting groove.

9. The steering assembly for a vehicle according to claim 7, characterized in that: Also includes: A sensor assembly (60), wherein the sensor assembly (60) is arranged between two adjacent motor housings (13); in The limiting plate (51) is provided with a sensing device, and the sensor assembly (60) is also suitable for detecting the amount of movement of the sensing device in the axial direction.

10. A vehicle, characterized in that: A steering assembly for a vehicle comprising any one of claims 1-9.

Images