Steering gear assembly and vehicle

Abstract

The utility model discloses a steering gear assembly and relates to the technical field of vehicle steering, the steering gear assembly is applied to a vehicle, the steering gear assembly comprises a steering gear and a driving mechanism, the steering gear comprises a steering gear shell and a steering transmission part movably arranged on the steering gear shell in the left-right direction, the left end and the right end of the steering transmission part are used for controlling wheels of the vehicle to steer, the driving mechanism comprises a driving motor, the driving motor is provided with an output shaft in driving connection with the steering transmission part, and the length direction of the driving motor inclines in the up-down direction in the left-right direction and inclines in the front-back direction. The middle point of the steering gear shell is arranged between the two ends of the driving mechanism. According to the technical scheme, the space occupied by the driving motor in the left-right direction is reduced, so that the space occupied by the driving mechanism in the left-right direction is reduced, and other components can be arranged on the left side and the right side of the driving mechanism conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle steering, and particularly relates to a steering gear assembly and a vehicle. Background Art

[0002] The steering gear assembly of a vehicle is a key component in the vehicle steering system, and the steering gear assembly is used to control the steering of the vehicle wheels.

[0003] The steering gear assembly includes a steering gear and a driving mechanism provided on the steering gear. The driving mechanism includes a driving motor drivingly connected to the steering gear. The length direction of the driving motor is consistent with the left-right direction, which makes the driving motor occupy a large space in the left-right direction, so that the driving mechanism occupies a large space in the left-right direction, and thus it is not conducive to arranging other components on the left and right sides of the driving mechanism. Summary of the Utility Model

[0004] The main object of the utility model is to provide a steering gear assembly and a vehicle, aiming to reduce the space occupied by the driving motor in the left-right direction, so as to reduce the space occupied by the driving mechanism in the left-right direction, and facilitate the arrangement of other components on the left and right sides of the driving mechanism.

[0005] To achieve the above object, the steering gear assembly proposed by the utility model includes:

[0006] A steering gear, including a steering gear housing and a steering transmission member movably arranged in the steering gear housing along the left-right direction, and the left and right ends of the steering transmission member are used to control the steering of the vehicle wheels; and

[0007] A driving mechanism, including a driving motor, the driving motor has an output shaft drivingly connected to the steering transmission member, the length direction of the driving motor is inclined from the left-right direction to the up-down direction and inclined in the front-back direction, and in the left-right direction, the midpoint of the steering gear housing is arranged between the two ends of the driving mechanism.

[0008] In one embodiment, in the left-right direction, the distance range from one end of the driving mechanism to the midpoint of the steering gear housing is 140 mm - 170 mm; and / or, the distance range from the other end to the midpoint of the steering gear housing is 110 mm - 130 mm.

[0009] In one embodiment, the length direction of the driving motor is inclined at a first angle from the left-right direction to the up-down direction and inclined at a second angle in the front-back direction. The range value of the first angle is 10° to 30°, and / or, the range value of the second angle is 20° to 40°.

[0010] In one embodiment, the steering transmission member includes a rack extending in the left-right direction, the drive mechanism further includes a speed reducer, the speed reducer includes a gear shaft connected to the output shaft, and the gear shaft meshes with the rack.

[0011] In one embodiment, the gear shaft has a meshing portion that meshes with the rack. In the left-right direction, the meshing portion is spaced apart from the center of the steering gear housing, and the output shaft is disposed on a side of the gear shaft close to the center of the steering gear housing.

[0012] In one embodiment, in the right direction, the center of the steering gear housing and the meshing portion are arranged in sequence.

[0013] In one embodiment, the drive mechanism further includes a controller disposed on the drive motor.

[0014] In one embodiment, in the left-right direction, the speed reducer is located at one end of the drive mechanism, and the controller is located at the other end of the drive mechanism.

[0015] In one embodiment, the thickness direction of the controller is consistent with the length direction of the drive motor, and the controller also extends beyond the outer peripheral surface of the drive motor laterally.

[0016] In one embodiment, the wiring terminal of the controller extends beyond the outer peripheral surface of the drive motor laterally.

[0017] In one embodiment, the steering gear assembly is configured as a steer-by-wire steering gear assembly. The speed reducer further includes a speed reducer housing. The gear shaft is disposed in the speed reducer housing. The speed reducer housing is provided with a spare interface for connecting a steering column so that the steering column is in transmission connection with the gear shaft.

[0018] The present utility model further provides a vehicle, and the vehicle includes the foregoing steering gear assembly.

[0019] In one embodiment, the vehicle further includes a steering axle, and the drive mechanism is connected to the steering axle through a bracket; and / or, each of the left and right ends of the steering axle is connected to a wheel, and the distance between the two wheels ranges from 800 mm to 1500 mm.

[0020] In the technical solution of the present utility model, on the one hand, the length direction of the drive motor is inclined in the up-down direction in the left-right direction, reducing the size of the drive motor in the left-right direction. On the other hand, the length direction of the drive motor is inclined in the front-rear direction in the left-right direction, reducing the size of the drive motor in the left-right direction. Thus, the space occupied by the drive motor in the left-right direction is reduced, and thereby the space occupied by the drive mechanism in the left-right direction is reduced, facilitating the arrangement of other components on the left and right sides of the drive mechanism.

[0021] In addition, in the left - right direction, the mid - point of the steering gear housing is disposed between the two ends of the drive mechanism. In this way, it is beneficial for the whole drive mechanism to be closer to the middle part of the steering gear housing in the left - right direction, so as to leave a certain space on both the left and right sides of the drive mechanism for installing other components of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0023] Figure 1 The front view of an embodiment of the steering gear assembly provided by the present invention;

[0024] Figure 2 is Figure 1 the top view of the steering gear assembly in;

[0025] Figure 3 The partial structural schematic diagram of the vehicle provided by the present invention.

[0026] Explanation of the reference numerals in the drawings:

[0027] 100, steering gear assembly; 200, steering gear; 210, steering gear housing; 220, steering transmission member; 300, drive mechanism; 310, drive motor; 320, speed reducer; 321, speed reducer housing; 322, spare interface; 330, controller; 331, terminal; 500, steering axle; 600, wheel.

[0028] The realization of the object, functional features and advantages of the present invention will be further described with reference to the embodiments and the drawings. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0030] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0031] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, or scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0032] The vehicle includes a steering gear assembly, the steering gear assembly includes a steering gear and a driving mechanism provided on the steering gear. The steering gear includes a steering gear housing and a steering transmission member movably provided in the left-right direction on the steering gear housing. The steering transmission member is used to control the steering of the vehicle wheels. The driving mechanism includes a driving motor, and the driving motor has an output shaft drivingly connected to the steering transmission member.

[0033] Currently, the driving motor occupies a large space in the left-right direction, which makes the driving mechanism occupy a large space in the left-right direction, thus being not conducive to arranging other components on the left and right sides of the driving mechanism.

[0034] There are many factors that cause the driving motor to occupy a large space in the left-right direction. The R & D personnel found that the length direction of the motor is consistent with the left-right direction, which makes the driving motor occupy a large space in the left-right direction. Therefore, the present utility model proposes a steering gear assembly, aiming to reduce the space occupied by the driving motor in the left-right direction, thereby reducing the space occupied by the driving mechanism in the left-right direction, so as to facilitate arranging other components on the left and right sides of the driving mechanism.

[0035] Please refer to Figures 1 to 3As shown, in an embodiment of the present utility model, the steering gear assembly 100 includes a steering gear 200 and a driving mechanism 300. The steering gear 200 includes a steering gear housing 210 and a steering transmission member 220 movably arranged in the left-right direction in the steering gear housing 210. The left and right ends of the steering transmission member 220 are used to control the steering of the vehicle wheels 600. The driving mechanism 300 includes a driving motor 310. The driving motor 310 has an output shaft drivingly connected to the steering transmission member 220. The length direction of the driving motor 310 is inclined in the up-down direction and the front-back direction in the left-right direction. In this way, on the one hand, the length direction of the driving motor 310 is inclined in the up-down direction in the left-right direction, reducing the size of the driving motor 310 in the left-right direction. On the other hand, the length direction of the driving motor 310 is inclined in the front-back direction in the left-right direction, reducing the size of the driving motor 310 in the left-right direction. In this way, the space occupied by the driving motor 310 in the left-right direction is reduced, thereby reducing the space occupied by the driving mechanism 300 in the left-right direction, so as to facilitate the arrangement of other components on the left and right sides of the driving mechanism 300.

[0036] In addition, in the left-right direction, the midpoint of the steering gear housing 210 is arranged between the two ends of the driving mechanism 300. In this way, it is beneficial for the whole driving mechanism 300 to be close to the middle part of the steering gear housing 210 in the left-right direction, so as to leave a certain space on the left and right sides of the driving mechanism 300 for installing other components of the vehicle.

[0037] Optionally, in an embodiment, in the left-right direction, the distance range from one end of the driving mechanism 300 to the midpoint of the steering gear housing 210 is 140 mm - 170 mm; and / or, the distance range from the other end to the midpoint of the steering gear housing 210 is 110 mm - 130 mm. In this way, on the one hand, the size of the driving mechanism 300 in the left-right direction is small, and on the other hand, the whole driving mechanism 300 is close to the middle part of the steering gear housing 210 in the left-right direction. It is worth mentioning that the distance from one end of the driving mechanism 300 to the midpoint of the steering gear housing 210 is as shown by C in Figure 3 In the left-right direction, the distance from the other end of the driving mechanism 300 to the midpoint of the steering gear housing 210 is as shown by D in Figure 3

[0038] Optionally, in an embodiment, the distance from one end of the driving mechanism 300 to the midpoint of the steering gear housing 210 is 150 mm - 160 mm; and / or, the distance range from the other end to the midpoint of the steering gear housing 210 is 115 mm - 125 mm. Optionally, in an embodiment, in the left-right direction, the distance range from the right end of the driving mechanism 300 to the midpoint of the steering gear housing 210 is 140 mm - 170 mm; and / or, the distance range from the left end to the midpoint of the steering gear housing 210 is 110 mm - 130 mm.

[0039] ​Optionally, in one embodiment, the longitudinal direction of the drive motor 310 is inclined at a first angle in the up-down direction with respect to the left-right direction, and the range of the first angle is 10° to 30°; and / or, the longitudinal direction of the drive motor 310 is inclined at a second angle in the front-rear direction with respect to the left-right direction, and the range of the second angle is 20° to 40°. In this way, it is beneficial to reduce the space occupied by the drive motor 310 in the left-right direction, thereby reducing the space occupied by the drive mechanism 300 in the left-right direction, so as to facilitate the arrangement of other components on the left and right sides of the drive mechanism 300. It is worth mentioning that the first angle is as shown by A in Figure 1 and the second angle is as shown by B in Figure 2 . Optionally, in one embodiment, the longitudinal direction of the drive motor 310 is inclined at a first angle in the up direction with respect to the left direction, and the range of the first angle is 10° to 30°; and / or, the longitudinal direction of the drive motor 310 is inclined at a second angle in the rear direction with respect to the left direction, and the range of the second angle is 20° to 40°.

[0040] There are many transmission forms between the drive mechanism 300 and the steering gear 200. Optionally, in one embodiment, the steering transmission member 220 includes a rack extending in the left-right direction, and the drive mechanism 300 further includes a speed reducer 320. The speed reducer 320 includes a gear shaft connected to the output shaft, and the gear shaft meshes with the rack. In this way, the output shaft indirectly drives the rack through the gear shaft, thereby driving the steering transmission member 220 to move in the left-right direction. However, this design is not limited thereto. In other embodiments, the structural forms of the drive mechanism 300 and the steering gear 200 may also be other as long as the transmission between the drive mechanism 300 and the steering gear 200 can be achieved, and no more details will be described here.

[0041] Optionally, in one embodiment, the gear shaft has an engaging portion that meshes with the rack. In the left-right direction, the engaging portion is spaced from the center of the steering gear housing 210, and the output shaft is provided on the side of the gear shaft close to the center of the steering gear housing 210. In this way, the entire drive mechanism 300 is close to the middle of the steering gear housing 210 in the left-right direction.

[0042] There are various layout positions of the engaging portion. Optionally, in one embodiment, in the right direction, the center of the steering gear housing 210 and the engaging portion are arranged in sequence. However, this design is not limited thereto. In other embodiments, in the left direction, the center of the steering gear housing 210 and the engaging portion are arranged in sequence.

[0043] Optionally, in one embodiment, the drive mechanism 300 further includes a controller 330 provided on the drive motor 310. In this way, the drive motor 310 is integrated with the controller 330 to reduce the wiring harness connecting the controller 330 to the drive motor 310.

[0044] There are various structural forms of the driving mechanism 300. Optionally, in one embodiment, in the left - right direction, the speed reducer 320 is located at one end of the driving mechanism 300, and the controller 330 is located at the other end of the driving mechanism 300. That is, in the left - right direction, the two extreme positions of the driving mechanism 300 are respectively on the speed reducer 320 and the controller 330. However, this design is not limited thereto. In other embodiments, in the left - right direction, the speed reducer 320 is located at one end of the driving mechanism 300, and the driving motor 310 is located at the other end of the driving mechanism 300.

[0045] Optionally, in one embodiment, the thickness direction of the controller 330 is consistent with the length direction of the driving motor 310, and the controller 330 also extends beyond the outer peripheral surface of the driving motor 310 on the side of the driving motor 310. In this way, in the length direction of the driving motor 310, it is beneficial to reduce the size of the driving mechanism 300, thereby reducing the space occupied by the driving mechanism 300 in the left - right direction.

[0046] Optionally, in one embodiment, the wiring terminal 331 of the controller 330 extends beyond the outer peripheral surface of the driving motor 310 on the side. In this way, it is convenient for the wiring terminal 331 to connect the wire harness, such as but not limited to connecting the power supply wire harness.

[0047] Optionally, in one embodiment, the steering gear assembly 100 is configured as a steer - by - wire steering gear assembly 100. In this way, it is beneficial to save the steering column of the vehicle to make the vehicle lighter. The speed reducer 320 further includes a speed reducer housing 321. The gear shaft is arranged inside the speed reducer housing 321. The speed reducer housing 321 is provided with a spare interface 322 for connecting the steering column so that the steering column is in transmission connection with the gear shaft. In this way, once the steering gear assembly 100 fails, the vehicle can still connect the steering column through the spare interface 322 to realize the driving of the vehicle.

[0048] The present utility model also proposes a vehicle, which includes the aforementioned steering gear assembly 100. The specific structure of the steering gear assembly 100 refers to the above - mentioned embodiments. Since this vehicle adopts all the technical solutions of the above - mentioned all embodiments, it has at least all the beneficial effects brought by the technical solutions of the above - mentioned embodiments, which will not be elaborated one by one here.

[0049] Optionally, in one embodiment, the vehicle further includes a steering axle 500, and the driving mechanism 300 is connected to the steering axle 500 through a bracket. In this way, it is beneficial to improve the stability of the driving mechanism 300 and reduce the burden on the steering gear housing 210.

[0050] Optionally, the vehicle further includes a steering axle 500, and a wheel 600 is respectively connected to the left and right ends of the steering axle 500. The distance range between the two wheels 600 is 800 mm - 1500 mm. In this way, the miniaturization of the vehicle in the left-right direction is achieved, and the vehicle miniaturized in the left-right direction can pass through a relatively narrow aisle.

[0051] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied to other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A steering gear assembly, applied to a vehicle, characterized in that: The steering gear assembly comprises: A steering gear, comprising a steering gear housing, and a steering transmission member movably arranged on the steering gear housing along a left-right direction, wherein left and right ends of the steering transmission member are used to control the steering of the wheels of the vehicle; and The driving mechanism includes a driving motor, which has an output shaft drivingly connected to the steering transmission member. The length direction of the driving motor is inclined in the up-down direction in the left-right direction and in the front-back direction. In the left-right direction, the midpoint of the steering gear housing is located between the two ends of the driving mechanism.

2. The steering gear assembly according to claim 1, characterized in that: In the left-right direction, the distance between one end of the driving mechanism and the midpoint of the steering gear housing is in the range of 140 mm to 170 mm; and / or the distance between the other end of the driving mechanism and the midpoint of the steering gear housing is in the range of 110 mm to 130 mm.

3. The steering gear assembly according to claim 1, characterized in that: The length direction of the drive motor is inclined at a first angle in the up-down direction in the left-right direction and at a second angle in the front-back direction. The range value of the first angle is 10° to 30°, and / or the range value of the second angle is 20° to 40°.

4. The steering gear assembly according to any one of claims 1 to 3, characterized in that: The steering transmission member includes a rack extending in the left-right direction, and the driving mechanism also includes a reducer. The reducer includes a gear shaft connected to the output shaft, and the gear shaft is meshed with the rack.

5. The steering gear assembly according to claim 4, characterized in that: The gear shaft has an engaging portion engaged with the rack, and in the left-right direction, the engaging portion is spaced apart from the center of the steering gear housing, and the output shaft is arranged on one side of the gear shaft close to the center of the steering gear housing.

6. The steering gear assembly according to claim 5, characterized in that: In the right direction, the steering gear housing center and the meshing portion are arranged in sequence.

7. The steering gear assembly according to claim 4, characterized in that: The driving mechanism further includes a controller arranged on the driving motor.

8. The steering gear assembly according to claim 7, characterized in that: In the left-right direction, the speed reducer is located at one end of the driving mechanism, and the controller is located at the other end of the driving mechanism.

9. The steering gear assembly according to claim 8, characterized in that: The thickness direction of the controller is consistent with the length direction of the driving motor, and the controller also extends beyond the outer peripheral surface of the driving motor in the lateral direction of the driving motor.

10. The steering gear assembly according to claim 9, characterized in that: The connection terminal of the controller laterally extends beyond the outer peripheral surface of the driving motor.

11. The steering gear assembly according to claim 7, characterized in that: The steering gear assembly is configured as a wire-controlled steering gear assembly, and the reducer also includes a reducer housing, the gear shaft is arranged in the reducer housing, and the reducer housing is provided with a spare interface, and the spare interface is used to connect the steering column so that the steering column is connected to the gear shaft in a transmission manner.

12. A vehicle, characterized in that: Comprising a steering gear assembly as described in any one of claims 1 to 11.

13. The vehicle according to claim 12, characterized in that The vehicle further comprises a steering axle, and the driving mechanism is connected to the steering axle via a bracket; and / or, the left and right ends of the steering axle are respectively connected to a wheel, and the distance between the two wheels ranges from 800mm to 1500mm.

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