Steering machine and vehicle

Abstract

The utility model relates to a steering engine and a vehicle. The steering engine comprises a shell and a steering rod assembly. Wherein the steering rod assembly is movably arranged in the shell in a penetrating mode in the first direction, the steering rod assembly comprises a steering rod and an adjusting rod assembly arranged at at least one end of the steering rod, and the adjusting rod assembly comprises a first driving assembly arranged on the steering rod and a movable rod in driving connection with the first driving assembly; the first driving assembly drives the movable rod to move relative to the steering rod so that the relative distance between the end, away from the steering rod, of the movable rod and the steering rod in the first direction can be adjusted. And the overall length of the steering rod assembly can be adjusted, so that the steering rod assembly can adapt to vehicle types with different wheel treads, and the applicability is good.

Description

Technical Field

[0001] The present disclosure relates to the technical field of vehicles, and in particular, to a steering gear and a vehicle. Background Art

[0002] Most of the current steering gears cannot adjust the overall length, cannot adjust the overall length according to the distance between the wheels, and cannot be applied to various vehicle models with different wheelbases, so the applicability is not strong. Summary of the Utility Model

[0003] The purpose of the present disclosure is to provide a steering gear and a vehicle. When the steering rod assembly is applied to the steering gear, it is convenient to adjust the length of the steering rod assembly according to the distance between the wheels, and the applicability is strong.

[0004] To achieve the above object, the first aspect of the present disclosure provides a steering gear, including:

[0005] A housing;

[0006] A steering rod assembly movably penetrating through the housing in a first direction. The steering rod assembly includes a steering rod and an adjusting rod assembly provided at at least one end of the steering rod. The adjusting rod assembly includes a first driving assembly provided on the steering rod and a movable rod drivingly connected to the first driving assembly. The first driving assembly drives the movable rod to move relative to the steering rod, so that the relative distance between the end of the movable rod away from the steering rod and the steering rod in the first direction is adjustable.

[0007] Optionally, at least one end of the steering rod is provided with a groove extending along the axis direction of the steering rod. The adjusting rod assembly is disposed in the groove, and a part of the movable rod extends out of the groove.

[0008] Optionally, the first driving assembly includes a first motor and a screw rod drivingly connected to the first motor. The first motor and the screw rod are both disposed in the groove. One end of the movable rod is provided with a receiving groove extending along the axis direction of the movable rod. The screw rod is inserted into the receiving groove and is threadedly connected to the movable rod. The first motor drives the movable rod to move along the axis direction of the steering rod through the screw rod.

[0009] Optionally, a first limiting structure is provided on the outer wall of the movable rod, and a second limiting structure is provided on the inner wall of the groove. The first limiting structure and the second limiting structure cooperate to limit the rotation of the movable rod relative to the steering rod and to guide the movable rod to move along the axis direction of the steering rod.

[0010] Optionally, the first limiting structure is configured as a clamping block, and the second limiting structure is configured as a clamping groove provided on the side wall of the groove and extending along the axial direction of the steering rod. The clamping block is inserted into the clamping groove and slidably connected to the clamping groove.

[0011] Optionally, the steering gear further includes a telescopic bellows, the bellows is sleeved on the steering rod assembly, one end of the bellows is connected to the housing, and the other end of the bellows is connected to the end of the movable rod away from the steering rod.

[0012] Optionally, an installation structure with an installation hole is provided on the housing, and the installation structure is installed on the vehicle frame through fasteners.

[0013] Optionally, there are two adjusting rod assemblies, and the two adjusting rod assemblies are respectively arranged at both ends of the steering rod.

[0014] Optionally, the steering gear further includes a steering shaft, an angle encoder, and a power-assisted motor. The steering shaft and the power-assisted motor are respectively drivingly connected to the steering rod assembly for driving the steering rod assembly to move in the housing in a first direction. The angle encoder is used to detect the rotation angle of the steering shaft, and the angle encoder is signal-connected to the power-assisted motor.

[0015] The second aspect of the present disclosure provides a vehicle including the above-mentioned steering gear.

[0016] Through the above technical solutions, the steering rod assembly movably disposed in the housing includes a steering rod and an adjusting rod assembly disposed at at least one end of the steering rod. The adjusting rod assembly includes a first driving assembly disposed on the steering rod and a movable rod drivingly connected to the first driving assembly. The first driving assembly drives the movable rod to move relative to the steering rod so that the relative distance between the end of the movable rod away from the steering rod and the steering rod is adjustable, and further the overall length of the steering rod assembly is adjustable, which can adapt to various vehicle models with different wheelbases and has good applicability.

[0017] Other features and advantages of the present disclosure will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. They are used to explain the present disclosure together with the following specific implementation manners, but do not constitute a limitation to the present disclosure. In the drawings:

[0019] Figure 1 is a schematic structural diagram of a steering gear provided in an exemplary embodiment of the present disclosure;

[0020] Figure 2It is a schematic structural diagram of a steering gear provided in another exemplary embodiment of the present disclosure, in which a partial structure inside the steering gear housing is shown;

[0021] Figure 3 is Figure 2 a detailed enlarged view of position A in

[0022] Figure 4 It is a schematic partial sectional structure diagram of a screw rod, a movable rod and a steering rod provided in an exemplary embodiment of the present disclosure;

[0023] Figure 5 is Figure 4 a detailed enlarged view of position B in

[0024] Figure 6 It is a cross-sectional view of a steering rod, a movable rod and a screw rod provided in an exemplary embodiment of the present disclosure.

[0025] Explanation of reference numerals

[0026] 10 - Housing; 20 - Steering rod assembly; 21 - Steering rod; 22 - Groove; 23 - Second limiting structure; 230 - Card slot; 24 - Adjusting rod assembly; 241 - First driving assembly; 2411 - First motor; 2412 - Screw rod; 242 - Movable rod; 25 - First limiting structure; 250 - Clamping block; 30 - Steering shaft; 40 - Angle encoder; 50 - Electric wire; 61 - Boost motor; 62 - Driving wheel; 63 - Transmission belt; 64 - Driven wheel; 70 - Bellows; 80 - Connector; 90 - Mounting structure; 100 - Steering gear; 200 - Fastener. Detailed implementation manners

[0027] The following will describe in detail the specific implementation manners of the present disclosure with reference to the accompanying drawings. It should be understood that the specific implementation manners described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure.

[0028] In the present disclosure, an X direction is set for the steering gear, where the X direction is the first direction, and the first direction is parallel to the axis direction of the steering rod. Unless otherwise stated, the orientation terms such as "inside, outside" refer to the inside and outside relative to the contour of the component or structure itself. In addition, it should be noted that the terms such as "first, second" are used to distinguish one element from another element, and do not have sequentiality and importance. Additionally, in the description with reference to the accompanying drawings, the same reference numerals in different drawings represent the same elements.

[0029] The first aspect of the present disclosure provides a steering gear 100, as Figures 1 to 6As shown. The steering gear 100 includes a housing 10 and a steering rod assembly 20. Among them, the steering rod assembly 20 is movably disposed in the housing 10 along a first direction. The steering rod assembly 20 includes a steering rod 21 and an adjusting rod assembly 24 provided at at least one end of the steering rod 21. The adjusting rod assembly 24 includes a first driving assembly 241 provided on the steering rod 21 and a movable rod 242 drivingly connected to the first driving assembly 241. The first driving assembly 241 drives the movable rod 242 to move relative to the steering rod 21, so that the relative distance between the end of the movable rod 242 away from the steering rod 21 and the steering rod 21 in the first direction is adjustable. Furthermore, the overall length of the steering rod assembly 20 can be adjusted, so that the steering rod assembly 20 can adapt to vehicle models with different wheelbases, and has good applicability.

[0030] In the above embodiment, both ends of the steering rod assembly 20 can be respectively used to connect two wheels opposite to each other in the vehicle width direction. When steering is required, the steering rod assembly 20 can drive the two wheels to rotate simultaneously.

[0031] In some embodiments, at least one end of the steering rod 21 is provided with a groove 22 extending along the axial direction of the steering rod 21. The adjusting rod assembly 24 is disposed in the groove 22, and a part of the movable rod 242 extends out of the groove 22. On the one hand, the groove 22 can provide a certain protection for the adjusting rod assembly 24, and on the other hand, it can minimize the original length of the steering rod assembly 20 to expand the adjustable range of the overall length of the steering rod assembly 20. In addition, the end of the movable rod 242 extending out of the groove 22 can facilitate connection with other components of the vehicle, which will not be elaborated here.

[0032] It should be understood that the movable rod 242 of the adjusting rod assembly 24 can extend out of the groove 22. When the adjusting rod assembly 24 is in the retracted state, most of the movable rod 242 of the adjusting rod assembly 24 is in the groove 22. When it is necessary to adjust the overall length of the steering rod assembly 20 in the first direction, the movable rod 242 can be driven by a driving member to extend out of the groove 22 on the steering rod 21.

[0033] In some embodiments, as Figure 1 and Figure 2 shown, there are two adjusting rod assemblies 24. Both ends of the steering rod 21 can be respectively provided with the adjusting rod assemblies 24, which can make the overall steering rod assembly 20 more symmetrical in the first direction. When the adjusting rod assemblies 24 are respectively provided at both ends of the steering rod 21, grooves 22 for accommodating the adjusting rod assemblies 24 can be respectively provided at both ends of the steering rod 21, and the two adjusting rod assemblies 24 are respectively disposed in the corresponding grooves 22. When it is necessary to increase the overall length of the adjusting rod assembly 24, the driving members in the two adjusting rod assemblies 24 can respectively drive the corresponding movable rods 242 to move.

[0034] In the above-described embodiments, the movable rods 242 at both ends of the steering rod 21 can be respectively connected to the corresponding wheels through a steering tie rod (not shown in the figure). When the entire steering rod assembly 20 in the steering machine 100 moves in the first direction, it can drive the wheels to rotate so that the vehicle steers. Among them, one end of the movable rod 242 far from the steering rod 21 can be known as the connecting head 80, and the movable rod 242 is connected to the steering tie rod of the vehicle through the connecting head 80.

[0035] In addition, the above-described steering rod 21 can be arbitrarily constructed in an appropriate form. For example, when the steering machine 100 is a rack and pinion steering machine 100 and only a rack is provided in the housing 10 of the steering machine 100, the steering rod 21 can be constructed as a rack provided in the housing 10, and grooves 22 are provided at both ends of the rack. An adjusting rod assembly 24 is provided in each groove 22. The movable rods 242 in the two adjusting rod assemblies 24 located at both ends of the rack can be respectively connected to the wheels through steering tie rods. When the steering machine 100 is a rack and pinion steering machine 100 and a rack and an inner tie rod (not shown in the figure) are provided in the housing 10 of the steering machine 100, that is, when an inner tie rod is hinged to both ends of the rack, the steering rod 21 can be constructed as a rack and two inner tie rods respectively hinged to both ends of the rack. Grooves 22 can be respectively provided at one ends of the two inner tie rods far from the rack, and an adjusting rod assembly 24 can be respectively provided in each groove 22. The movable rods 242 in the two adjusting rod assemblies 24 can be respectively connected to the corresponding wheels through a steering tie rod.

[0036] In some embodiments, when the steering machine 100 is constructed as a rack and pinion steering machine 100, the steering machine 100 may further include a steering shaft 30, an angle encoder 40, and an assist motor 61. Among them, the steering shaft 30 is inserted into the housing 10 of the steering machine 100, and one end of the steering shaft 30 located in the housing 10 is drivingly connected to the steering rod assembly 20 in the housing 10, and the other end of the steering shaft 30 is drivingly connected to the steering wheel through a transmission shaft. When the steering wheel rotates, it can drive the steering shaft 30 to rotate, and the steering shaft 30 can drive the steering rod assembly 20 to move in the first direction in the housing 10. The angle encoder 40 can be provided on the housing 10 and at the position of the steering shaft 30, and the angle encoder 40 can be used to detect the rotation angle of the steering shaft 30.

[0037] In addition, the assist motor 61 in the steering machine 100 can also be drivingly connected to the steering rod assembly 20, and the assist motor 61 can drive the steering rod assembly 20 to rotate relative to the housing 10 in the first direction to provide assistance when the operator turns the steering wheel to steer.

[0038] In the above-described embodiments, the angle encoder 40 can be signal-connected to the assist motor 61, specifically, it can be a wireless connection, or as Figure 1 and Figure 2As shown, the angle encoder 40 is connected to the power-assisting motor 61 through the wire 50 . The power-assisting motor 61 can drive the steering rod 21 through the rotation angle of the steering shaft 30 detected by the angle encoder 40 to achieve power steering for the steering wheel.

[0039] It should be noted that, in some possible implementations, the above-mentioned angle encoder 40 can be replaced by a torque sensor. When the steering wheel drives the steering shaft 30 to rotate, the torque sensor can detect the torque of the steering shaft 30. The torque sensor can be connected to the signal of the power-assist motor 61. The power-assist motor 61 can drive the steering rod 21 through the torque of the steering shaft 30 detected by the angle encoder 40 to achieve power assistance for steering the steering wheel.

[0040] In some embodiments, the steering shaft 30 and the power-assisting motor 61 may both be connected to the steering rod 21. The steering shaft 30 may be configured as a pinion shaft, and the steering rod 21 may include a rack. The steering shaft 30 configured as a pinion shaft drives the rack to move in the first direction. The power-assisting motor 61 may be disposed on the housing 10, and the power-assisting motor 61 may drive the rack in the steering rod 21 to move in the first direction in the housing 10 through a driving wheel 62, a driven wheel 64, and a transmission belt 63. The driving wheel 62 is connected to the rotating shaft of the power-assisting motor 61, the driven wheel 64 is threadedly matched with the rack, and the driving wheel 62 and the driven wheel 64 are transmitted through a transmission belt 63. When the power-assisting motor 61 rotates, the driving wheel 62 connected to the rotating shaft of the power-assisting motor 61 drives the driven wheel 64 to rotate through the transmission belt 63, so as to drive the rack of the steering rod 21 to move in the first direction in the housing 10.

[0041] In other possible embodiments, a ball screw groove may be provided on the rack of the steering rod 21, and the driven wheel 64 may have the function of a ball screw nut. When the power-assisting motor 61 is running, the steering rod assembly 20 may be driven by the driven wheel 64 to move in the first direction in the housing 10, which will not be repeated here.

[0042] It should be noted that, in addition to driving the rack in the steering rod 21, the power-assisting motor 61 can also drive the inner pull rod in the steering rod 21, and can provide power to the movement of the steering rod assembly 20 in the first direction, which is not limited here.

[0043] In some embodiments, the first driving assembly 241 can be arbitrarily constructed in a suitable form. For example, the first driving assembly 241 includes a first motor 2411 and a screw rod 2412 drivingly connected to the first motor 2411. Among them, both the first motor 2411 and the screw rod 2412 can be arranged in a groove 22 formed on the steering rod 21. One end of the movable rod 242 is provided with a receiving groove extending along the axial direction of the movable rod 242. The screw rod 2412 is inserted into the receiving groove and is threadedly connected to the movable rod 242. The first motor 2411 drives the movable rod 242 to move along the axial direction of the steering rod 21 through the screw rod 2412, so that the relative distance between the end of the movable rod 242 away from the steering rod 21 and the steering rod 21 in the first direction can be adjusted, so as to be able to adjust the overall length of the steering rod assembly 20 to adapt to vehicles with different wheelbases. In addition, the adjustable overall length of the steering rod assembly 20 can also facilitate the installation between the two ends of the steering rod assembly 20 and the steering tie rod, which will not be elaborated here.

[0044] In the above embodiment, the first motor 2411 can be powered by a storage battery arranged in the groove 22, or can be connected to an external power source through an electric wire. For example, holes can be opened on the housing 10 and the steering rod 21, and then the external power source and the first motor 2411 are connected through an electric wire, which is not limited here.

[0045] In other possible embodiments, the steering rod assembly 20 can also be constructed as an electric push rod. The electric push rod can be arranged in the groove 22, and one end of the electric push rod extends out of the groove 22. By operating the electric push rod, the relative distance between the end of the electric push rod extending out of the groove 22 and the steering rod 21 in the first direction can be adjusted, so as to be able to adjust the overall length of the steering rod assembly 20.

[0046] In some embodiments, a first limiting structure 25 can be arranged on the outer wall of the movable rod 242, and a second limiting structure 23 is arranged on the inner wall of the groove 22. The first limiting structure 25 and the second limiting structure 23 cooperate to limit the rotation of the movable rod 242 relative to the steering rod 21, and can also be used to guide the movable rod 242 to move along the axial direction of the steering rod 21.

[0047] In the above embodiment, the first limiting structure 25 and the second limiting structure 23 limit the movable rod 242 in the circumferential direction of the movable rod 242. When the first motor 2411 drives the movable rod 242 to move in the first direction through the screw rod 2412, it can limit the movable rod 242 from rotating following the screw rod 2412, and through the cooperation of the first limiting structure 25 and the second limiting structure 23, it can guide the movable rod 242 to move along the axial direction of the steering rod 21, so that the movable rod 242 can move more smoothly when moving relative to the steering rod 21 in the first direction.

[0048] In some embodiments, the first limiting structure 25 and the second limiting structure 23 can be arbitrarily arranged in a suitable form according to actual requirements. For example, as Figures 4 to 6 shown, the first limiting structure 25 can be configured as a clamping block 250, and the second limiting structure 23 can be configured as a clamping groove 230 provided on the side wall of the groove 22 and extending along the axis direction of the steering rod 21. The clamping block 250 is inserted into the clamping groove 230 and is slidably connected with the clamping groove 230. When the first motor 2411 drives the movable rod 242 to move in the first direction through the screw rod 2412, the slider can move in the clamping groove 230 in the first direction, and can be used to guide the movement of the movable rod 242 in the first direction, so that the movement of the movable rod 242 relative to the steering rod 21 in the first direction is smoother.

[0049] In other possible embodiments, the first limiting structure 25 can be configured as a slide rail provided on the inner wall of the groove 22, and the second limiting structure 23 can be configured as a sliding groove provided on the outer wall of the movable rod 242. When the first motor 2411 drives the movable rod 242 to move relative to the steering rod 21 in the first direction through the screw rod 2412, through the cooperation of the sliding groove and the slide rail, on the one hand, it can limit the rotation of the interactive rod following the screw rod 2412; on the other hand, it can guide the movement of the movable rod 242 in the first direction, which will not be elaborated here.

[0050] In some embodiments, the steering gear 100 further includes a bellows 70 with telescopic function, the bellows 70 is sleeved on the steering rod assembly 20, one end of the bellows 70 is connected to the housing 10, and the other end of the bellows 70 is connected to the end of the movable rod 242 far away from the steering rod 21. Among them, there can be two bellows 70, and the two bellows 70 can be respectively arranged at both ends of the housing 10. The setting of the bellows 70 can protect the components in the housing 10 of the steering gear 100, and prevent pollutants such as water, dust, and dirt from entering the housing 10 and damaging the components in the housing 10.

[0051] In some embodiments, an installation structure 90 with an installation hole can be provided on the housing 10, and the installation structure 90 can be installed on the vehicle frame through a fastener 200. Among them, the specific installation position of the steering gear 100 on the vehicle frame can be set according to actual requirements, and no limitation is made here.

[0052] The second aspect of the present disclosure provides a vehicle, including the steering gear 100 provided in the first aspect of the present disclosure. The vehicle further includes a steering wheel and at least two wheels for steering. Among them, the steering wheel is drivingly connected to the steering gear 100 through the steering shaft 30 of the steering gear 100, and the movable rods 242 at both ends of the steering gear 100 can be respectively connected to the steering knuckles of the vehicle through a steering tie rod. When connecting the two ends of the steering gear 100 to the steering knuckles of the wheels through the steering tie rods, the first motor 2411 can be started according to the wheelbase of the two wheels, and the movable rod 242 is driven by the first motor 2411 to move, so as to adjust the overall length of the steering rod assembly 20, thereby facilitating connecting the two ends of the steering rod assembly 20 of the steering gear 100 to the wheels through a steering tie rod respectively.

[0053] In addition, when the steering wheel is rotated, the steering wheel can drive the steering rod assembly 20 in the steering gear 100 to move in a first direction within the housing 10 of the steering gear 100 through the steering shaft 30 of the steering gear 100, so as to drive the two wheels to rotate, and thus complete the turning of the vehicle. Among them, when the rotating shaft of the steering gear 100 rotates, the assist motor 61 of the steering gear 100 also drives the steering rod assembly 20 to move in the first direction within the housing 10, so as to make it easier to turn the steering wheel. Details are not described herein again.

[0054] The preferred embodiments of the present disclosure have been described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0055] In addition, it should be noted that, in the case of no conflict, the various specific technical features described in the above specific embodiments can be combined in any appropriate manner. To avoid unnecessary repetition, the present disclosure will not separately describe various possible combination methods.

[0056] In addition, any combination can be made between various different embodiments of the present disclosure, as long as it does not violate the idea of the present disclosure, and it should also be regarded as the content disclosed by the present disclosure.

Claims

1. A steering machine, characterized in that: include: case; A steering rod assembly is movably arranged in the shell along a first direction, the steering rod assembly includes a steering rod and an adjusting rod assembly arranged at at least one end of the steering rod, the adjusting rod assembly includes a first driving assembly arranged on the steering rod and a movable rod drivingly connected to the first driving assembly, the first driving assembly drives the movable rod to move relative to the steering rod so that the relative distance between the end of the movable rod away from the steering rod and the steering rod in the first direction can be adjusted.

2. The steering machine according to claim 1, characterized in that: At least one end of the steering rod is provided with a groove extending along the axial direction of the steering rod, the adjusting rod assembly is arranged in the groove, and part of the movable rod extends out of the groove.

3. The steering machine according to claim 2, characterized in that: The first driving component includes a first motor and a screw rod drivingly connected to the first motor. The first motor and the screw rod are both arranged in the groove. One end of the movable rod is provided with a receiving groove extending along the axial direction of the movable rod. The screw rod is inserted into the receiving groove and is threadedly connected to the movable rod. The first motor drives the movable rod to move along the axial direction of the steering rod through the screw rod.

4. The steering machine according to claim 3, characterized in that: A first limiting structure is provided on the outer wall of the movable rod, and a second limiting structure is provided on the inner wall of the groove. The first limiting structure and the second limiting structure cooperate with each other to limit the rotation of the movable rod relative to the steering rod and to guide the movable rod to move along the axial direction of the steering rod.

5. The steering machine according to claim 4, characterized in that: The first limiting structure is configured as a clamping block, and the second limiting structure is configured as a clamping slot provided on the side wall of the groove and extending along the axial direction of the steering rod, and the clamping block is inserted into the clamping slot and is slidably connected with the clamping slot.

6. The steering machine according to claim 1, characterized in that: The steering gear also includes a retractable bellows, which is sleeved on the steering rod assembly, one end of the bellows is connected to the housing, and the other end of the bellows is connected to an end of the movable rod away from the steering rod.

7. The steering machine according to claim 1, characterized in that: The housing is provided with a mounting structure having a mounting hole, and the mounting structure is used for being mounted on the vehicle frame through fasteners.

8. The steering machine according to any one of claims 1 to 7, characterized in that: There are two adjusting rod assemblies, and the two adjusting rod assemblies are respectively arranged at two ends of the steering rod.

9. The steering machine according to claim 1, characterized in that: The steering gear also includes a steering shaft, an angle encoder and a power-assist motor. The steering shaft and the power-assist motor are respectively connected to the steering rod assembly for driving the steering rod assembly to move in a first direction within the housing. The angle encoder is used to detect the rotation angle of the steering shaft, and the angle encoder is connected to the power-assist motor signal.

10. A vehicle, characterized in that: Comprising a steering machine as described in any one of claims 1-9.

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