Steering device, steering system and vehicle

Abstract

The utility model relates to a steering device, a steering system and a vehicle, the steering device comprises a prime mover, an execution assembly and a detector, the prime mover is used for providing power for wheel steering, the execution assembly comprises a first type of transmission part capable of rotating around the central axis, and the detector is configured to detect the rotation angle of the first type of transmission part; and the prime mover is in transmission connection with the first type of transmission, so that the execution assembly drives the wheels to steer under the action of the prime mover. According to the technical scheme, the detector is used for detecting the rotation angle of the first type of transmission parts, additional parts such as a sliding block sensor do not need to be arranged, and the arrangement difficulty of the steering device is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a steering device, a steering system and a vehicle. BACKGROUND

[0002] In the steering device of a vehicle, a sleeve shaft is arranged in the housing of the steering device, and the sleeve shaft is connected with a steering knuckle, so as to adjust the steering of the wheel through the steering knuckle.

[0003] In the related art, a slider sensor is used to obtain the linear displacement of the sleeve shaft along the housing.

[0004] However, this way needs to arrange the slider and the sensor, and the slider, the sensor and the housing and the sleeve shaft correspondingly, which leads to the difficulty in arranging the components of the steering device. CONTENT OF THE UTILITY MODEL

[0005] The embodiments of the present application provide a steering device, which reduces the difficulty in arranging the components of the steering device, so as to at least partially solve the above technical problems.

[0006] According to a first aspect of the present application, a steering device is provided for realizing the steering of a wheel, and the steering device comprises:

[0007] a prime mover configured to provide power for the steering of the wheel;

[0008] an execution assembly comprising a first type of transmission member capable of rotating around a central axis; and

[0009] a detector configured to detect the rotation angle of the first type of transmission member;

[0010] The prime mover and the first type of transmission member are in transmission connection, so that the execution assembly drives the wheel to steer under the action of the prime mover.

[0011] Optionally, the execution assembly further comprises:

[0012] a second type of transmission member configured to move along the central axis and in transmission connection with the wheel;

[0013] The second type of transmission member and the first type of transmission member are in transmission connection, so that the prime mover drives the wheel to steer.

[0014] Optionally, the first type of transmission member comprises:

[0015] a first transmission member configured to be in transmission connection with the output shaft of the prime mover;

[0016] The detector surrounds at least a portion of the first transmission member, and the second type of transmission member is rotatably connected to the first transmission member so that the first transmission member rotates to drive the second type of transmission member to move along the central axis.

[0017] Optionally, the first transmission member and / or the second type of transmission member are configured as rotating bodies with the central axis as the axis of rotation.

[0018] Optionally, along the central axis, the second type of transmission member is formed with a shaft hole through which at least a portion of the first transmission member passes.

[0019] Optionally, the steering device further includes:

[0020] A rotating structure is used to enable the first transmission component and the second type of transmission component to form a rotating connection;

[0021] The rotating structure is located within the space defined by the shaft hole.

[0022] Optionally, the rotating structure includes:

[0023] A first interface is formed around the central axis to the outer peripheral wall of the first transmission member; and

[0024] The second interface is formed around the central axis to the inner peripheral wall of the second type of transmission component;

[0025] The first interface and the second interface are combined, and the first interface can rotate relative to the second interface about the central axis, so that the first transmission member rotates relative to the second type of transmission member to drive the second type of transmission member to move relative to the first transmission member along the central axis.

[0026] Optionally, the second interface is constructed as a slot structure; the first interface is constructed as a block structure adapted to the slot structure.

[0027] Optionally, the groove structure is continuously disposed on the inner wall surface of the second type of transmission component;

[0028] and / or

[0029] The block structure is continuously disposed on the outer peripheral wall of the first transmission component.

[0030] Optionally, the cross-section of the groove structure is trapezoidal;

[0031] Wherein, the size of the first base of the trapezoid, which is far from the central axis, is larger than the size of the second base, which is close to the central axis.

[0032] Optionally, the steering device further includes:

[0033] The casing has a receiving space;

[0034] The prime mover, the execution component, and the detector are all located within the accommodating space, and the detector is fixedly connected to the housing.

[0035] Optionally, the steering device further includes:

[0036] A limiting structure is used to allow the second type of transmission member to move relative to the first transmission member along the central axis;

[0037] The limiting structure is located between the housing and the second type of transmission component.

[0038] Optionally, the limiting structure includes:

[0039] A third interface is formed along the central axis to the inner peripheral wall of the housing; and

[0040] The fourth interface is formed along the central axis to the outer peripheral wall of the second type of transmission component;

[0041] The third interface is used to restrict the rotation of the fourth interface around the central axis, so that the second type of transmission component can move along the central axis.

[0042] Optionally, the third interface is constructed as a slot structure;

[0043] The fourth interface is constructed as a block structure that protrudes from the outer peripheral wall of the second type of transmission component and is spaced apart from the outer peripheral wall of the second type of transmission component.

[0044] Optionally, the third interface and the fourth interface are gap-fitted.

[0045] Optionally, the steering device further includes:

[0046] The fifth interface is formed on the inner peripheral wall surface of the housing;

[0047] The fifth interface is used to restrict the movement of the second type of transmission component along the central axis.

[0048] Optionally, the first type of transmission component further includes:

[0049] The second transmission component is used to give the first transmission component a preset transmission ratio relative to the prime mover;

[0050] The second transmission component is connected between the prime mover and the first transmission component.

[0051] Optionally, the steering device further includes: a housing;

[0052] The second transmission component includes a planetary gear set;

[0053] The planetary gear set includes an input shaft, a ring gear, a sun gear, a planet carrier, and planet gears;

[0054] The input shaft is coaxially connected to the sun gear, and the input shaft is connected to the power shaft of the prime mover to prevent rotation. The sun gear meshes sequentially with the planet gears and the ring gear. The planet gears are connected to the first transmission component through the planet carrier, and the ring gear is fixedly connected to the housing.

[0055] The prime mover drives the sun gear to rotate via the input shaft, which in turn causes the planet gears to rotate around the ring gear, thereby driving the planet carrier and the first transmission component to rotate synchronously.

[0056] Optionally, the first transmission member further includes:

[0057] The sixth interface is used to connect the planetary carrier to the first transmission component;

[0058] The sixth interface is located at one end of the first transmission member relative to the planetary carrier, along the central axis.

[0059] Optionally, the sixth interface is constructed as a slot structure;

[0060] The cross-section of the groove structure has a preset slope.

[0061] Optionally, the first transmission component is provided with a flange face;

[0062] The steering device further includes:

[0063] The first bearing component is located between the housing and the first transmission component;

[0064] Wherein, along the axial direction of the central axis, the first bearing component is located at the end of the flange face.

[0065] Optionally, the steering device further includes:

[0066] The second bearing component is located between the housing and the first transmission component;

[0067] Wherein, along the axial direction of the central axis, the second bearing member is located at the end of the first bearing member away from the second type of transmission member.

[0068] Optionally, the steering device further includes:

[0069] The third bearing component is located between the second type of transmission component and the housing.

[0070] The third bearing component is slidably connected to the housing.

[0071] Optionally, the steering device further includes:

[0072] The third type of transmission component forms a fixed connection with the second type of transmission component;

[0073] The third type of transmission component connects the second type of transmission component and the wheel.

[0074] According to a second aspect of this application, a steering system is provided, comprising a steering device as described in any of the above claims.

[0075] According to a third aspect of this application, a vehicle is also provided, including a steering device as described above or a steering system as described above.

[0076] The beneficial effect of this application is that it provides a steering device that can reduce the difficulty of layout.

[0077] More specifically, some embodiments of this application may produce the following specific beneficial effects:

[0078] In the steering device of this embodiment, the steering device includes a prime mover, an actuating component, and a detector. The prime mover provides power for wheel steering, the actuating component includes a first type of transmission member capable of rotating around a central axis, and the detector is configured to detect the rotation angle of the first type of transmission member. The prime mover and the first type of transmission member are connected in a transmission connection, so that the actuating component drives the wheels to steer under the action of the prime mover. Through the above technical solution, by using a detector to detect the rotation angle of the first type of transmission member, there is no need to arrange additional components such as slider sensors, thus reducing the difficulty of arranging the steering device.

[0079] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0080] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0081] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0082] Figure 1 This is a cross-sectional view of the internal structure of the steering device provided in an exemplary embodiment of this application;

[0083] Figure 2 This is a schematic diagram of the detector structure provided in an exemplary embodiment of this application;

[0084] Figure 3 This is a schematic diagram of the structure of the second type of transmission frame provided in an exemplary embodiment of this application;

[0085] Figure 4 This is a cross-sectional schematic diagram of the connection structure between the first transmission member, the second transmission member, and the housing provided in an exemplary embodiment of this application;

[0086] Figure 5 This is an enlarged structural diagram of point A provided in an exemplary embodiment of this application;

[0087] Figure 6 This is an enlarged structural diagram of point B provided in the exemplary embodiment of the application;

[0088] Figure 7 This is a schematic diagram of the overall structure of the vehicle provided in the exemplary embodiment of the application.

[0089] Explanation of reference numerals in the attached figures:

[0090] 1000. Steering mechanism;

[0091] 100. Prime mover; 110. Output shaft of the prime mover;

[0092] 200. Execution components;

[0093] 210. Class I transmission components;

[0094] 211, First transmission component; 2111, Sixth interface;

[0095] 212. Second transmission component; 2121. Input shaft; 2122. Gear ring; 2123. Sun gear; 2124. Planet carrier; 2125. Planet gears;

[0096] 220. Type II transmission components; 220a. Shaft hole;

[0097] 300. Rotating structure; 310. First interface; 320. Second interface;

[0098] 400, housing; 400a, accommodating space; 410, first housing; 420, second housing;

[0099] 500. Limiting structure; 510. Third interface; 520. Fourth interface;

[0100] 600, Fifth Interface;

[0101] 710. First bearing component; 720. Second bearing component; 730. Third bearing component; 800. Third type of transmission component; 900. Detector;

[0102] 10. Steering system; 1. Vehicle. Detailed Implementation

[0103] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0104] In the steering device of the related technology, a lead screw and a sleeve shaft that form a transmission connection with the lead screw are set in the housing. The lead screw rotates around the central axis under the action of the prime mover. The housing and the sleeve shaft are respectively connected to the rear subframe of the vehicle and the steering knuckle, which play the role of adjusting the wheel angle. In order to determine the position of the sleeve shaft, a slider sensor is set to measure the displacement of the sleeve shaft. The sensor and slider of the slider sensor need to be set at corresponding positions in the housing and the sleeve shaft, so as to be able to measure the displacement of the sleeve shaft.

[0105] However, this method increases the difficulty of arranging the various components of the steering mechanism.

[0106] According to a first aspect of this application, a steering device 1000 is provided for wheel steering, referenced... Figures 1 to 6 The steering device 1000 includes: a prime mover 100, an actuator 200, and a detector 900.

[0107] The prime mover 100 is used to provide power for wheel steering, and the actuation assembly 200 includes a first type of transmission 210 capable of rotating about a central axis, and a detector 900 configured to detect the rotation angle of the first type of transmission 210.

[0108] The prime mover 100 is connected to the first type of transmission component 210 to enable the actuator 200 to drive the wheels to turn under the action of the prime mover 100.

[0109] By using the above technical solution, the rotation angle of the first type of transmission component 210 is detected by the detector 900, eliminating the need for additional components such as sliders, thus reducing the difficulty of arranging the steering device 1000.

[0110] refer to Figure 2 The detector 900 in this application can be an angle sensor, which can detect the rotation angle of the first type of transmission member 210 that can rotate about the central axis in the execution component 200.

[0111] It should be noted that the angle sensor in this application is a prior art angle sensor, and this application is an application of it.

[0112] In some embodiments, reference Figure 1 The execution component 200 also includes: a second type of transmission component 220.

[0113] The second type of transmission component 220 is configured to move along the central axis and form a transmission connection with the wheel.

[0114] The second type of transmission component 220 and the first type of transmission component 210 form a transmission connection so that the prime mover 100 drives the wheels to turn.

[0115] By connecting the second type of transmission component 220 with the first type of transmission component 210, and connecting the second type of transmission component 220 with the wheel, the prime mover 100 drives the wheel to turn through the first type of transmission component 210 and the second type of transmission component 220. The output shaft 110 of the prime mover rotates, which drives the second type of transmission component 220 to rotate. During the rotation of the second type of transmission component 220, the first type of transmission component 210 can be moved along the central axis, thereby achieving the effect of driving the wheel to turn.

[0116] It should be noted that the rotation angle of the first type of transmission component 210 and the distance that the second type of transmission component 220 moves along the central axis satisfy a corresponding proportional relationship, which is not the focus of this application and will not be elaborated here.

[0117] In some embodiments, reference Figure 1 The first type of transmission component 210 includes: a first transmission component 211.

[0118] The first transmission component 211 is used to form a transmission connection with the output shaft 110 of the prime mover.

[0119] In this configuration, the detector 900 surrounds at least a portion of the first transmission member 211, and the second type of transmission member 220 is rotatably connected to the first transmission member 211 so that the first transmission member 211 rotates to drive the second type of transmission member 220 to move along the central axis.

[0120] By setting the first transmission member 211 to rotate to drive the second type of transmission member 220 to move along the central axis, this driving method is simpler and the power transmission is more stable. The detector 900 surrounding at least part of the first transmission member 211 can be defined as the first detector, which can detect the rotation angle of the first transmission member 211.

[0121] In some embodiments, reference Figure 3 The second type of transmission component 220 is constructed as a rotating body with the central axis as the axis of rotation.

[0122] By constructing the second type of transmission component 220 as a rotating body with the central axis as the axis of rotation, it can be more rationally matched with the first transmission component 211, further reducing the difficulty of arrangement.

[0123] The first transmission component 211 can also be constructed as a rotating body with the central axis as its axis of rotation.

[0124] Similarly, by constructing the first transmission component 211 as a rotating body with the central axis as the axis of rotation, the overall structure of the first transmission component 211 is more regular and easier to arrange.

[0125] In some embodiments, along the central axis, the second type of transmission member 220 is formed with a shaft hole 220a through which at least a portion of the first transmission member 211 passes.

[0126] By providing a shaft hole 220a, at least a portion of the first transmission member 211 can be inserted into the shaft hole 220a along the central axis, and can form a rotatable connection with the second type of transmission member 220 to achieve stable power transmission.

[0127] In some embodiments, the steering device 1000 further includes a rotating structure 300.

[0128] The rotating structure 300 is used to make the first transmission member 211 and the second type of transmission member 220 rotately connected, wherein the rotating structure 300 is located within the space defined by the shaft hole 220a.

[0129] Specifically, refer to Figure 1 The rotating structure 300 includes: a first interface 310 and a second interface 320.

[0130] The first interface 310 is formed around the central axis to the outer peripheral wall of the first transmission member 211, and the second interface 320 is formed around the central axis to the inner peripheral wall of the second type of transmission member 220.

[0131] The first interface 310 and the second interface 320 are combined, and the first interface 310 can rotate relative to the second interface 320 around the central axis, so that the first transmission member 211 rotates relative to the second type of transmission member 220 to drive the second type of transmission member 220 to move relative to the first transmission member 211 along the central axis.

[0132] refer to Figure 1 The second interface 320 is constructed as a slot structure, and the first interface 310 is constructed as a block structure adapted to the slot structure.

[0133] At least a portion of the block structure can be embedded in the slot structure, that is, at least a portion of the first interface 310 can be embedded in the second interface 320.

[0134] The groove structure is continuously provided on the inner wall surface of the second type of transmission component 220. That is, the first thread structure can be formed on the inner wall surface of the second type of transmission component 220, and the groove structure is the groove structure of the first thread structure.

[0135] The block structure is continuously set on the outer peripheral wall of the first transmission member 211, that is, the second thread structure can be formed on the outer peripheral wall of the first transmission member 211, and the block structure is the tooth structure of the second thread structure.

[0136] It should be noted that the first threaded structure and the second threaded structure are connected by screwing.

[0137] In some embodiments, the cross-section of the groove structure is trapezoidal;

[0138] In this case, the size of the first base of the trapezoid, which is far from the central axis, is larger than the size of the second base, which is close to the central axis.

[0139] By setting the cross-section of the groove structure to be trapezoidal, and adapting the block structure to the groove structure, that is, setting the cross-section of the block structure to be trapezoidal as well, the first transmission component 211 and the second type of transmission component 220 can withstand a large axial load through the transmission connection of the trapezoidal shape and the small thread angle of the trapezoidal shape, the transmission operation is smooth and the noise is low, which is suitable for noise-sensitive environments.

[0140] That is, the first transmission component 211 and the second type of transmission component 220 can be constructed as a trapezoidal lead screw assembly.

[0141] In some embodiments, reference Figure 1 and Figure 4 The steering device 1000 also includes a housing 400.

[0142] The housing 400 has a receiving space 400a, in which the prime mover 100, the actuating component 200 and the detector 900 are all located, and the detector 900 is fixedly connected to the housing 400.

[0143] refer to Figure 1 The cross-sectional shape of the housing 400 is set to a cup-shaped structure similar to a stemmed glass. The prime mover 100 and the actuation component 200 are both integrated in the housing space 400a of the housing 400. That is, the housing 400 itself serves as both the housing 400 of the prime mover 100 and the actuation component 200 and the load-bearing and assembly of the detection.

[0144] The housing 400 includes a first housing 410 and a second housing 420, with the prime mover 100 placed inside the first housing 410 and the actuator 200 placed inside the second housing 420.

[0145] The angle sensor is fixed inside the second housing 420, for example by fasteners. The angle sensor has a central space through which a portion of the first transmission member 211 passes, so that the angle sensor surrounds the first transmission member 211 and avoids the segment where the fourth interface 520 is located, surrounding the inner side of the end of the first transmission member 211 away from the fourth interface 520.

[0146] In some embodiments, reference Figure 4 The steering device 1000 also includes a limiting structure 500.

[0147] The limiting structure 500 is used to move the second type of transmission member 220 relative to the first transmission member 211 along the central axis, wherein the limiting structure 500 is located between the housing 400 and the second type of transmission member 220.

[0148] By providing a limiting structure 500 between the housing 400 and the second type of transmission member 220, the rotation of the first transmission member 211 around the central axis can be converted into the linear motion of the second type of transmission member 220 along the central axis.

[0149] In some embodiments, reference Figure 4 The limiting structure 500 includes: a third interface 510 and a fourth interface 520.

[0150] The third interface 510 is formed along the central axis to the inner peripheral wall of the housing 400, and the fourth interface 520 is formed along the central axis to the outer peripheral wall of the second type of transmission component 220.

[0151] The third interface 510 is used to restrict the rotation of the fourth interface 520 around the central axis so that the second type of transmission member 220 can move along the central axis.

[0152] By restricting the rotation of the fourth interface 520 around the central axis through the third interface 510, even when the second type of transmission member 220 with the fourth interface 520 is subjected to the rotational force of the first transmission member 211 with the first interface 310 at its second interface 320, the housing 400 with the third interface 510 remains stationary, thus restricting the rotation of the fourth interface 520 around the central axis. Consequently, the housing 400 restricts the rotation of the second type of transmission member 220 around the central axis and allows the second type of transmission member 220 to move along the central axis.

[0153] The third interface 510 on the inner peripheral wall of the housing 400 restricts the rotation of the fourth interface 520 around the central axis, resulting in better limiting effect, smaller gap, and the ability to radially bear the force of the second type of transmission component 220.

[0154] In some embodiments, the third interface 510 is configured as a slot structure, and the fourth interface 520 is configured as a block structure protruding from the outer peripheral wall of the second type of transmission member 220 and spaced apart from the outer peripheral wall of the second type of transmission member 220.

[0155] Similarly, the combination of the slot structure and block structure of the third interface 510 and the fourth interface 520 can optimize the force on the second type of transmission component 220.

[0156] refer to Figure 4 When the third interface 510 is set in a slot structure, the length direction of the slot structure is parallel to the central axis.

[0157] Correspondingly, the length direction of the block structure on the outer peripheral wall of the second type of transmission component 220 is parallel to the length direction of the groove structure.

[0158] In some embodiments, the third interface 510 and the fourth interface 520 are gap-fitted. This arrangement allows for a certain gap between the second type of transmission component 220 and the housing 400, preventing excessive restriction between the second type of transmission component 220 and the housing 400, which could lead to jamming.

[0159] refer to Figure 3 The second type of transmission component 220 can be constructed as a splined sleeve shaft, and the first transmission component 211 can be constructed as a trapezoidal lead screw. The splined sleeve shaft is fitted with the trapezoidal lead screw, and the two form a rotatable connection.

[0160] In some embodiments, the steering device 1000 further includes a fifth interface 600.

[0161] The fifth interface 600 is formed on the inner peripheral wall of the housing 400, which can restrict the movement of the second type of transmission member 220 along the central axis and prevent the second type of transmission member 220 from being displaced too much along the central axis.

[0162] Specifically, when the end of the second interface 320 of the second type of transmission member 220 along the central axis abuts against the fifth interface 600, the movement of the second type of transmission member 220 along the central axis can be restricted.

[0163] In some embodiments, reference Figure 1 The first type of transmission component 210 also includes: a second transmission component 212.

[0164] The second transmission member 212 is used to give the first transmission member 211 a preset transmission ratio relative to the prime mover 100, wherein the second transmission member 212 is connected between the prime mover 100 and the first transmission member 211.

[0165] By setting a second transmission member 212 between the prime mover 100 and the first transmission member 211, a preset reduction ratio is formed between the prime mover 100 and the first transmission member 211, which facilitates the adjustment of the rotational speed of the first transmission member 211.

[0166] Alternatively, a detector 900 can be set at the position of the second transmission member 212, defined as the second detector 900. The second detector can be used to detect the rotation angle of the second transmission member 212, and the displacement of the first transmission member 211 can also be measured.

[0167] In some embodiments, reference Figure 5 The second transmission component 212 includes a planetary gear set.

[0168] The planetary gear set includes an input shaft 2121, a ring gear 2122, a sun gear 2123, a planet carrier 2124, and planet gears 2125.

[0169] The input shaft 2121 is coaxially connected to the sun gear 2123, and the input shaft 2121 forms an anti-rotation connection with the power shaft of the prime mover 100. The sun gear 2123 meshes with the planet gears 2125 and the ring gear 2122 in sequence. The planet gears 2125 are connected to the first transmission component 211 through the planet carrier 2124, and the ring gear 2122 is fixedly connected to the housing 400.

[0170] The prime mover 100 drives the sun gear 2123 to rotate via the input shaft 2121, so that the planet gear 2125 rotates around the gear ring 2122, thereby driving the planet carrier 2124 and the first transmission component 211 to rotate synchronously.

[0171] By setting the second transmission component 212 as a planetary gear set, the reduction ratio between the prime mover 100 and the first transmission component 211 can be adjusted to facilitate the output of different power values.

[0172] In some embodiments, reference Figure 1 The first transmission component 211 is also provided with a sixth interface 2111.

[0173] The sixth interface 2111 is used to connect the planet carrier 2124 with the first transmission member 211; wherein, along the central axis, the sixth interface 2111 is opened at one end of the first transmission member 211 opposite to the planet carrier 2124.

[0174] Specifically, the sixth interface 2111 is constructed as a groove structure, wherein the cross-section of the groove structure has a preset slope.

[0175] For example, the cross-section of the sixth interface 2111 can be set as a special-shaped pin hole. Correspondingly, the output shaft of the planetary carrier 2124 is set as a special-shaped pin that is adapted to the special-shaped pin hole. The special-shaped pin and the special-shaped pin hole are positioned and connected to realize the connection between the planetary carrier 2124 and the first transmission member 211.

[0176] In some embodiments, the portion connecting the planet carrier 2124 and the planet gear 2125 may be configured as a connection method using a non-standard pin hole and a non-standard pin.

[0177] In some embodiments, the first transmission member 211 is provided with a flange face.

[0178] The steering device 1000 also includes: a first bearing component 710.

[0179] The first bearing member 710 is located between the housing 400 and the first transmission member 211, wherein, along the axial direction of the central axis, the first bearing member 710 is located at the end of the flange face.

[0180] Specifically, the first bearing component 710 is constructed as a thrust roller bearing, and the number of thrust roller bearings is set to two, sandwiching the two flange faces of the first transmission component 211 in the middle, and the thrust roller bearings bear the axial load.

[0181] In some embodiments, the steering device 1000 further includes a second bearing member 720.

[0182] The second bearing member 720 is located between the housing 400 and the first transmission member 211, wherein, along the axial direction of the central axis, the second bearing member 720 is located at the end of the first bearing member 710 away from the second type of transmission member 220.

[0183] Specifically, the second bearing component 720 is constructed as 2124, with a threaded connection between the screw plug and the housing, and the screw plug transmits the axial load to the housing 400.

[0184] In some embodiments, the steering device 1000 further includes a third bearing member 730.

[0185] The third bearing component 730 is located between the second type of transmission component 220 and the housing 400, wherein the third bearing component 730 forms a sliding connection with the housing 400.

[0186] Specifically, the third bearing component 730 is constructed as a sliding bearing, which is press-fitted into the housing 400 to bear the radial load of the second type of transmission component 220 and further constrain its sway.

[0187] In some embodiments, the steering device 1000 further includes a third type of transmission element 800.

[0188] The third type of transmission component 800 is fixedly connected to the second type of transmission component 220, wherein the third type of transmission component 800 connects the second type of transmission component 220 and the wheel.

[0189] Specifically, the third type of transmission component 800 is constructed as a mounting fork, which is bolted to the second type of transmission component 220 and transmits axial movement to the outside as the second type of transmission component 220 moves.

[0190] According to a second aspect of this application, a steering system 10 is provided, including a steering device 1000 as described above.

[0191] The steering system 10 of this application includes the steering device 1000 described above, and therefore has all the beneficial effects of the steering device 1000 described above, which will not be repeated here.

[0192] The steering device 1000 of this application is used to achieve steering of the wheels, and further, it can be used to achieve steering of the rear wheels.

[0193] According to the third aspect of this application, with reference to Figure 7 The vehicle 1 is also provided, including a steering device 1000 as described above or a steering system 10 as described above.

[0194] The vehicle 1 of this application includes the aforementioned steering device 1000, and therefore has all the beneficial effects of the aforementioned steering device 1000, which will not be repeated here.

[0195] The vehicle 1 of this application includes the aforementioned steering system 10, and therefore has all the beneficial effects of the aforementioned steering system 10, which will not be repeated here.

[0196] The vehicle 1 can be a gasoline-powered vehicle, a plug-in hybrid electric vehicle, or a new energy vehicle, etc., and this application does not make any specific restrictions on it.

[0197] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0198] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0199] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0200] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A steering device (1000) for achieving wheel steering, characterized in that, The steering device (1000) includes: Prime mover (100) for providing power for steering the wheels; The actuating component (200) includes a first type of transmission element (210) capable of rotating about a central axis; The steering device (1000) also includes: The detector (900) is configured to detect the rotation angle of the first type of transmission member (210); The prime mover (100) is connected to the first type of transmission component (210) to drive the wheel to turn under the action of the prime mover (100).

2. The steering device (1000) according to claim 1, characterized in that, The execution component (200) further includes: The second type of transmission component (220) is configured to move along the central axis and forms a transmission connection with the wheel; The second type of transmission component (220) and the first type of transmission component (210) form a transmission connection so that the prime mover (100) drives the wheel to turn.

3. The steering device (1000) according to claim 2, characterized in that, The first type of transmission component (210) includes: The first transmission component (211) is used to form a transmission connection with the output shaft (110) of the prime mover; The detector (900) surrounds at least a portion of the first transmission member (211), and the second type of transmission member (220) is rotatably connected to the first transmission member (211) so that the first transmission member (211) rotates to drive the second type of transmission member (220) to move along the central axis.

4. The steering device (1000) according to claim 3, characterized in that, The first transmission member (211) and / or the second type of transmission member (220) are configured as rotating bodies with the central axis as the axis of rotation.

5. The steering device (1000) according to claim 3, characterized in that, Along the central axis, the second type of transmission member (220) is formed with a shaft hole (220a) through which at least a portion of the first transmission member (211) passes.

6. The steering device (1000) according to claim 5, characterized in that, The steering device (1000) also includes: A rotating structure (300) is used to make the first transmission member (211) and the second type of transmission member (220) rotately connected; The rotating structure (300) is located within the space defined by the shaft hole (220a).

7. The steering device (1000) according to claim 6, characterized in that, The rotating structure (300) includes: First Interface ( 310 ) The outer peripheral wall of the first transmission member (211) is formed around the central axis; and Second interface ( 320 ) The inner peripheral wall of the second type of transmission member (220) is formed around the central axis; The first interface (310) and the second interface (320) are combined, and the first interface (310) can rotate relative to the second interface (320) about the central axis, so that the first transmission member (211) rotates relative to the second type of transmission member (220) to drive the second type of transmission member (220) to move relative to the first transmission member (211) along the central axis.

8. The steering device (1000) according to claim 7, characterized in that, The second interface (320) is constructed as a slot structure; the first interface (310) is constructed as a block structure adapted to the slot structure.

9. The steering device (1000) according to claim 8, characterized in that, in, The groove structure is continuously provided on the inner wall surface of the second type of transmission component (220); and / or The block structure is continuously disposed on the outer peripheral wall of the first transmission component (211).

10. The steering device (1000) according to claim 8, characterized in that, The cross-section of the groove structure is trapezoidal; Wherein, the size of the first base of the trapezoid, which is far from the central axis, is larger than the size of the second base, which is close to the central axis.

11. The steering device (1000) according to any one of claims 7 to 10, characterized in that, The steering device (1000) also includes: The housing (400) has a receiving space (400a); The prime mover (100), the actuator (200) and the detector (900) are all located in the accommodating space (400a), and the detector (900) is fixedly connected to the housing (400).

12. The steering device (1000) according to claim 11, characterized in that, The steering device (1000) also includes: A limiting structure (500) is used to move the second type of transmission member (220) relative to the first transmission member (211) along the central axis; The limiting structure (500) is located between the housing (400) and the second type of transmission component (220).

13. The steering device (1000) according to claim 12, characterized in that, The limiting structure (500) includes: A third interface (510) is formed along the central axis to the inner peripheral wall of the housing (400); and A fourth interface (520) is formed along the central axis to the outer peripheral wall of the second type of transmission member (220); The third interface (510) is used to restrict the rotation of the fourth interface (520) about the central axis so that the second type of transmission member (220) can move along the central axis.

14. The steering device (1000) according to claim 13, characterized in that, The third interface (510) is constructed as a slot structure; The fourth interface (520) is constructed as a block structure that protrudes from the outer peripheral wall of the second type of transmission member (220) and is spaced apart from the outer peripheral wall of the second type of transmission member (220).

15. The steering device (1000) according to claim 13, characterized in that, The third interface (510) and the fourth interface (520) are fitted with a gap.

16. The steering device (1000) according to claim 12, characterized in that, The steering device (1000) also includes: A fifth interface (600) is formed to the inner peripheral wall surface of the housing (400); The fifth interface (600) is used to restrict the movement of the second type of transmission component (220) along the central axis.

17. The steering device (1000) according to any one of claims 3 to 10, characterized in that, The first type of transmission component (210) also includes: The second transmission component (212) is used to give the first transmission component (211) a preset transmission ratio relative to the prime mover (100); The second transmission component (212) is connected between the prime mover (100) and the first transmission component (211).

18. The steering device (1000) according to claim 17, characterized in that, The steering device (1000) further includes: a housing (400); The second transmission component (212) includes a planetary gear set; The planetary gear set includes an input shaft (2121), a gear ring (2122), a sun gear (2123), a planet carrier (2124), and planet gears (2125); The input shaft (2121) is coaxially connected to the sun gear (2123), and the input shaft (2121) is connected to the power shaft of the prime mover (100) to prevent rotation. The sun gear (2123) meshes with the planet gears (2125) and the ring gear (2122) in sequence. The planet gears (2125) are connected to the first transmission member (211) through the planet carrier (2124), and the ring gear (2122) is fixedly connected to the housing (400). The prime mover (100) drives the sun gear (2123) to rotate via the input shaft (2121), so that the planet gear (2125) rotates around the gear ring (2122) to drive the planet carrier (2124) and the first transmission member (211) to rotate synchronously.

19. The steering device (1000) according to claim 18, characterized in that, The first transmission component (211) is further provided with: The sixth interface (2111) is used to connect the planetary carrier (2124) with the first transmission member (211); Along the central axis, the sixth interface (2111) is located at one end of the first transmission member (211) opposite to the planetary carrier (2124).

20. The steering device (1000) according to claim 19, characterized in that, The sixth interface (2111) is constructed as a slot structure; The cross-section of the groove structure has a preset slope.

21. The steering device (1000) according to claim 11, characterized in that, The first transmission component (211) is provided with a flange surface; The steering device (1000) further includes: The first bearing component (710) is located between the housing (400) and the first transmission component (211); Wherein, along the axial direction of the central axis, the first bearing member (710) is located at the end of the flange face.

22. The steering device (1000) according to claim 11, characterized in that, The steering device (1000) also includes: The second bearing component (720) is located between the housing (400) and the first transmission component (211); Along the axial direction of the central axis, the second bearing member (720) is located at the end of the first bearing member (710) away from the second type of transmission member (220).

23. The steering device (1000) according to claim 11, characterized in that, The steering device (1000) also includes: The third bearing component (730) is located between the second type of transmission component (220) and the housing (400); The third bearing component (730) is slidably connected to the housing (400).

24. The steering device (1000) according to claim 11, characterized in that, The steering device (1000) also includes: The third type of transmission component (800) is fixedly connected to the second type of transmission component (220); The third type of transmission component (800) connects the second type of transmission component (220) and the wheel.

25. A steering system (10), characterized in that, Includes the steering device (1000) as described in any one of claims 1 to 24.

26. A vehicle (1), characterized in that, Includes the steering device (1000) as described in any one of claims 1 to 24 or the steering system (10) as described in claim 25.

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