CN212195632U - Steering mechanism, steering wheel assembly and vehicle - Google Patents

Abstract

The utility model discloses a steering mechanism, steering wheel subassembly and vehicle, wherein steering mechanism includes: the device comprises a matching mounting structure, a driving structure, a vibration damper assembly and a bearing assembly. A matching bulge part is formed in the middle of the matching mounting structure; the top of the shock absorber base is provided with a mounting groove, the matching bulge part is rotatably matched in the mounting groove, the connecting column penetrates through the matching bulge part to be connected with the driving structure, and the driving structure drives the shock absorber assembly to rotate; the first bearing is arranged between the matching bump part and the mounting groove, and the second bearing is arranged between the matching bump part and the connecting column, so that the shock absorber component can rotate relative to the matching mounting structure. The arrangement position of the steering mechanism is not limited, the occupied arrangement space is smaller, the steering mechanism can be conveniently arranged on a vehicle body, and the wheels can be driven to independently steer so as to effectively increase the rotation angle of the wheels, thereby increasing the steering driving mode of the wheels and further effectively improving the steering performance of the vehicle.

Description

Steering mechanism, steering wheel assembly and vehicle

Technical Field

The utility model relates to a vehicle technical field particularly, relates to a steering mechanism, turns to wheel assembly and vehicle.

Background

The steering mechanism commonly used in conventional vehicles is of the form: the rack motion pulling steering gear both ends tie rod motion in the steering gear, the tie rod will power transmission to the wheel on, realize the function that turns to, wherein, the steering gear assembly is installed on the frame, and pull the wheel motion by the tie rod, therefore, not only the arrangement position of wheel is limited, and the space that whole steering mechanism occupy is great, it is comparatively inconvenient to arrange, and the wheel turns to and only has fixed turned angle scope and scope subtly by the restriction of tie rod, and every wheel can not independently turn to, thereby the steering performance of vehicle has been influenced, there is the improvement space.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a steering mechanism, this steering mechanism's the position of arranging is not restricted to the arrangement space that occupies is littleer, is more convenient for arrange on the automobile body, and can drive the wheel and carry out independent steering, with the steering performance that effectively promotes the vehicle.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a steering mechanism comprising: the middle part of the matching installation structure is provided with a matching bulge part; the shock absorber comprises a driving structure and a shock absorber component, wherein the upper end of the shock absorber component is provided with a shock absorber base, the top of the shock absorber base is provided with a mounting groove, a matching bulge is rotatably matched in the mounting groove, a connecting column which extends upwards is arranged in the mounting groove, the connecting column penetrates through the matching bulge to be connected with the driving structure, the connecting column is in clearance fit with the matching bulge, and the driving structure drives the shock absorber component to rotate around the axis of the connecting column; a bearing assembly, the bearing assembly comprising: a first bearing disposed between the mating bump and the mounting slot and a second bearing disposed between the mating bump and the connecting post to enable the damper assembly to rotate relative to the mating mounting structure.

Further, the fitting installation structure includes: the body part and the matching bulge part protruding from the body part towards the mounting groove, an inner shaft ring of the first bearing is sleeved on an outer wall surface of the matching bulge part in a limiting mode, an outer shaft ring of the first bearing is in limiting matching with a side wall of the mounting groove, a top wall of the inner shaft ring is tightly pressed against the body part in a stopping mode, and a bottom wall of the outer shaft ring is tightly pressed against a bottom wall of the mounting groove in a stopping mode.

Further, the second bearing is sleeved on the connecting column and is tightly pressed between a fastening nut matched with the connecting column and the bottom wall of the matched bulge part.

Further, a spring washer is clamped between the fastening nut and the second bearing.

Further, the driving structure is in spline fit connection with the connecting column.

Further, the drive structure is adapted to drive the damper assembly through a full rotation.

Compared with the prior art, steering mechanism have following advantage:

steering mechanism, this steering mechanism arrange the position not restricted to what occupy arranges that the space is littleer, be more convenient for arrange on the automobile body, and can drive the wheel and independently turn to, with the turned angle of effectively increasing the wheel, thereby increase turning to the mode of traveling of wheel, and then the effectual performance that turns to that promotes the vehicle.

Another object of the present invention is to provide a steering wheel assembly, including foretell steering mechanism and wheel, the rotatable connection of wheel is in on the shock absorber subassembly, this steering wheel assembly can carry out the independent steering of wheel to effectively promote the steering performance of vehicle.

Further, the damper assembly includes: the damping arms on two sides are connected between the damping arms on two sides through the wheels.

Further, the wheel includes: the wheel hub motor is sleeved with the tire, and the wheel hub motor is rotatably connected between the damping arms at two sides.

Still another object of the present invention is to provide a vehicle, including the above-mentioned steering wheel assembly, the steering performance and the trafficability characteristic of the vehicle are better.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural view of a steerable wheel assembly according to an embodiment of the present invention;

fig. 2 is an exploded view of a steerable wheel assembly according to an embodiment of the present invention;

fig. 3 is a partial structural sectional view of a steering mechanism according to an embodiment of the present invention;

fig. 4 is a partial structural sectional view of a steering mechanism according to another embodiment of the present invention.

Description of reference numerals:

100-steering mechanism, 1-drive structure, 2-shock absorber assembly, 3-fit mounting structure, 4-bearing assembly, 41-first bearing, 21-mounting groove, 31-fit bulge, 32-body part, 411-inner race, 412-outer race, 22-connecting column, 42-second bearing, 5-fastening nut, 6-spring washer, 1000-steering wheel assembly, 200-wheel, 23-damping arm, 201-in-wheel motor, 202-tire, 24-shock absorber base.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

A steering mechanism 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 4.

According to the utility model discloses steering mechanism 100 can include: a drive structure 1, a damper assembly 2, a mating mounting structure 3 and a bearing assembly 4.

As shown in fig. 1 to 3, the fitting structure 3 is adapted to be fixed to a vehicle body, so as to fix the whole steering wheel assembly to the vehicle body through the fitting structure 3, thereby achieving stable connection between the steering wheel assembly 1000 and the vehicle body, and further ensuring safety and stability when the vehicle is steered.

The middle part of cooperation mounting structure 3 is formed with cooperation uplift portion 31, and the upper end of shock absorber subassembly 2 has shock absorber base 24, and shock absorber base 24's top is formed with mounting groove 21, and the rotatable cooperation of cooperation uplift portion 31 is in mounting groove 21 to realize the stable cooperation between cooperation mounting structure 3 and the shock absorber subassembly 2.

Moreover, the form of fitting the fitting bulge portion 31 and the mounting groove 21 can make the whole structure of the steering mechanism 100 more compact and occupy less layout space.

Further, the mounting groove 21 is internally provided with a connecting column 22 which extends upwards, the connecting column 22 penetrates through the matching bulge part 31 to be connected with the driving structure 1, the connecting column 22 is in clearance fit with the matching bulge part 31, and the driving structure 1 drives the shock absorber component 2 to rotate around the axis of the connecting column 22. Specifically, the via hole has been seted up on the diapire of cooperation uplift 31, spliced pole 22 is suitable for passing the via hole and is connected with drive structure 1, wherein, there is the clearance between spliced pole 22 and the via hole, in order to avoid spliced pole 22 and via hole to take place to interfere and influence the normal rotation of spliced pole 22, because be suitable for being connected with wheel 200 on the shock absorber subassembly 2, consequently, can drive wheel 200 and rotate when drive structure 1 drive shock absorber subassembly 2 is pivoted, in order to form the wheel 200 that can independently turn to the unit, so that provide drive power through drive structure 1 and rotate the diversion in order to drive shock absorber subassembly 2 and wheel 200, and guaranteed shock absorber subassembly 2 and wheel 200 for the pivoted stability of cooperation mounting structure 3.

Since the steering mechanism commonly used in the conventional vehicle is in the form of: the steering gear inner rack moves to pull the tie rods at the two ends of the steering gear to move, the tie rods transmit force to the wheels, and the steering function is achieved.

For this reason, the embodiment of the present invention will adopt the independent driving structure 1 to drive the rotation of the shock absorber assembly 2 and the wheel 200, so as to form the independent steering unit of the wheel 200, which is not limited by the position of the conventional tie rod of the steering gear, so that the arrangement position is not limited, and the occupied arrangement space is smaller, and the arrangement on the vehicle body is more convenient.

And, the restriction that traditional wheel turns to by tie rod and only has fixed turned angle scope and is slightly little, and the utility model discloses a steering mechanism 100 is owing to use 1 direct drive shock absorber subassembly of drive structure and the rotation of wheel 200, therefore, turned angle will not receive the restriction, can carry out the turnover motion even, can carry out 360 rotations, therefore, the effectual flexibility ratio that increases the control of wheel 200 steering angle, the operating mode that adapts to two-wheeled and four-wheel steering that can be better switches over, so that wheel 200 can realize 90 turns to, and then can realize that the front wheel turns to, four-wheel steering, the slant is walked, the line, multiple mode of going that turns to such as pivot turns to, in order to promote the steering performance and the trafficability of vehicle.

Wherein, the utility model discloses a form together is directly connected the installation with drive structure 1 and shock absorber subassembly 2, has saved unnecessary moment transmission structure, need not increase transmission shaft structure between drive structure 1 and shock absorber subassembly 2 promptly, consequently, the effectual transmission efficiency who improves steering mechanism 100 to can further practice thrift and arrange the space.

Further, the bearing assembly 4 includes: a first bearing 41 and a second bearing 42, the first bearing 41 being disposed between the mating bump 31 and the mounting groove 21, and the second bearing 42 being disposed between the mating bump 31 and the attachment post 22, so that the shock absorber assembly 2 can rotate relative to the mating mounting structure 3, thereby satisfying the prerequisite condition for the steering of the wheel 200. That is, the bearing assembly 4 is disposed between the mating mounting structure 3 and the damper assembly 2 to stably connect the damper assembly 2 to the mating mounting structure 3 and thus to the vehicle body, and to enable the damper assembly 2 to rotate relative to the mating mounting structure 3.

Wherein, because the bearing assembly 4 is disposed between the mating mounting structure 3 and the damper assembly 2, during vehicle vibration, axial and torsional forces between the damper assembly 2 and the mating mounting structure 3 will both be exerted on the bearing assembly 4 and will not reach the drive structure 1. Therefore, the shock absorber assembly 2 and the wheel 200 can be ensured to rotate relative to the matching mounting structure 3 and cannot be damaged by axial force and torsional force, and therefore energy loss in the steering process of the wheel 200 can be reduced, and the bearing strength is improved.

According to the utility model discloses steering mechanism 100, this steering mechanism 100 arrange the position not limited to the arrangement space that occupies is littleer, is more convenient for arrange on the automobile body, and can drive wheel 200 and independently turn to, with the turned angle of effective increase wheel 200, thereby increase the steering mode of traveling of wheel 200, and then the effectual steering performance that has promoted the vehicle.

As shown in fig. 1 and 2, the fitting attachment structure 3 includes: the main body part 32 and the matching bulge part 31 protruding from the main body part 32 towards the mounting groove 21, wherein the inner ring 411 of the first bearing 41 is in limited sleeve fit on the outer wall surface of the matching bulge part 31, and the outer ring 412 of the first bearing 41 is in limited fit with the side wall of the mounting groove 21, so that the matching bulge part 31 can be ensured to stably rotate relative to the shock absorber base 24 through the first bearing 41, and further the stable rotation of the shock absorber assembly 2 and the wheel 200 relative to the matching mounting structure 3 is ensured.

Optionally, be suitable for between outer collar 412 and the mounting groove 21 and between inner collar 411 and the cooperation uplift portion 31 to adopt interference fit's mode to be connected, in order to guarantee the cooperation stability between outer collar 412 and the mounting groove 21, in order to avoid outer collar 412 and mounting groove 21 to take place relative rotation, guarantee the cooperation stability between inner collar 411 and the cooperation uplift portion 31 simultaneously, in order to avoid inner collar 411 and the cooperation uplift portion 31 to take place relative rotation, and then guaranteed that shock absorber subassembly 2 and wheel 200 rotate for the stability of cooperation mounting structure 3. Or, the outer collar 412 may also be in limit connection with the mounting groove 21 by using the first bearing 41 whose housing of the outer collar 412 is an external thread, and meanwhile, the inner collar 411 may also be in limit connection with the matching bump portion 31 by using the first bearing 41 whose housing of the inner collar 411 is an internal thread, and also may perform effective axial limit on the first bearing 41, so as to prevent the position of the first bearing 41 from changing in the using process.

Further, referring to fig. 3, the top wall of the inner collar 411 abuts against and presses the body portion 32, and the bottom wall of the outer collar 412 abuts against and presses the bottom wall of the mounting groove 21. Thus, the first bearing 41 can effectively support the movement between the mating mounting structure 3 and the shock absorber base 24, bear most of the axial force and a small part of the radial impact force from the wheel 200, and transmit the impact force to the mating mounting structure 3 to avoid the impact force from reaching the driving structure 1, thereby ensuring the safety of the driving structure 1.

Preferably, the first bearing 41 may be selected from a tapered roller bearing to ensure a buffering effect of the axial force and the impact force, and to ensure stability of the damper assembly 2 and the wheel 200 with respect to the mating mounting structure 3.

As another preferred embodiment, referring to fig. 4, the first bearing 41 may be a pressure ball bearing that is only axially stressed according to the use condition.

Preferably, the drive structure 1 is splined to the connecting column 22. Be formed with the external splines on the upper end of spliced pole 22 promptly, and be formed with the internal spline in the drive structure 1, the internal and external splines cooperate in order to realize the limit connection of drive structure 1 with spliced pole 22 to guaranteed the stability of being connected between drive structure 1 and the spliced pole 22, and then guaranteed the stable transmission of steering force and moment.

Moreover, the inner spline and the outer spline are connected, so that the assembly process is simpler, the transmission efficiency of the steering mechanism 100 can be effectively improved, and the arrangement space can be saved.

With reference to the embodiment shown in fig. 1-3, the second bearing 42 is sleeved on the connecting column 22 and compressed between the fastening nut 5 engaged with the connecting column 22 and the bottom wall of the engaging protrusion 31, so as to support the relative rotation between the driving structure 1 and the engaging mounting structure 3, and bear all the axial force from the wheel 200, so as to avoid damage to the steering mechanism 100.

The fastening nut 5 is also used for fixing the damper base 24 to the mating mounting structure 3 to prevent the axial position of the damper assembly 2 from changing, and for transmitting all the force from the damper assembly 2 to the vehicle body to prevent the drive structure 1 from receiving the impact force from the axial direction.

Referring to fig. 2 and 3, a spring washer 6 is interposed between the fastening nut 5 and the second bearing 42. The spring washer 6 can effectively buffer the axial impact force, and can further absorb the axial impact force, and can effectively protect the second bearing 42, so as to prevent the second bearing 42 from being damaged by the impact force.

As shown in fig. 1 to 3, the driving structure 1 includes: and the driving motor is suitable for driving the shock absorber component 2 to rotate for the whole circle. The 360-degree rotation of the wheels 200 can be realized, so that the steering performance and the trafficability of the vehicle are effectively improved.

According to another aspect of the present invention, the steering wheel assembly 1000 comprises the above-mentioned steering mechanism 100 and the wheel 200, the wheel 200 is rotatably connected to the shock absorber assembly 2 to achieve effective damping effect and steering operation.

In connection with the embodiment shown in fig. 1 and 2, a shock absorber assembly 2 comprises: the two side damping arms 23, the wheel 200 is connected between the two side damping arms 23 to realize the rotation of the wheel 200 relative to the damper assembly 2, so that the wheel 200 can drive the whole vehicle to run.

Specifically, the damper arm 23 includes: the wheel 200 is connected between the two cylinders, one ends of the two piston rods are suitable for being matched in the two cylinders, the other ends of the two piston rods are suitable for being fixed with the shock absorber base 24, and the shock absorbing springs are arranged between the cylinders and the shock absorber base 24, so that when the vehicle runs on a bumpy road surface, the shock absorbing arms 22 can achieve an effective buffering and shock absorbing effect.

As shown in fig. 1 and 2, the wheel 200 includes: the wheel hub motor 201 and the tire 202, the tire 202 is sleeved on the wheel hub motor 201, and the wheel hub motor 201 is rotatably connected between the damping arms 23 on both sides, so as to drive the tire 202 to rotate through the rotation of the matching mounting structure 3 relative to the damping arms 23, thereby realizing the integral rotation and steering operation of the wheel 200.

According to another aspect of the present invention, a vehicle includes the steering wheel 200 assembly 1000 described in the above embodiments. Other configurations of the vehicle, such as transmissions, braking systems, steering systems, etc., are known in the art and well known to those skilled in the art, and therefore will not be described in detail herein.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A steering mechanism (100), comprising:

the mounting structure comprises a matching mounting structure (3), wherein a matching bulge part (31) is formed in the middle of the matching mounting structure (3);

the shock absorber comprises a driving structure (1) and a shock absorber component (2), wherein a shock absorber base (24) is arranged at the upper end of the shock absorber component (2), a mounting groove (21) is formed at the top of the shock absorber base (24), a matching bulge part (31) is rotatably matched in the mounting groove (21), a connecting column (22) extending upwards is arranged in the mounting groove (21), the connecting column (22) penetrates through the matching bulge part (31) to be connected with the driving structure (1), the connecting column (22) is in clearance fit with the matching bulge part (31), and the driving structure (1) drives the shock absorber component (2) to rotate around the axis of the connecting column (22);

a bearing assembly (4), the bearing assembly (4) comprising: a first bearing (41) and a second bearing (42), the first bearing (41) being disposed between the mating bump (31) and the mounting groove (21), the second bearing (42) being disposed between the mating bump (31) and the attachment post (22) to enable the damper assembly (2) to rotate relative to the mating mounting structure (3).

2. Steering mechanism (100) according to claim 1, wherein the cooperating mounting structure (3) comprises: the bearing comprises a body part (32) and a matching bulge part (31) protruding from the body part (32) towards the mounting groove (21), wherein an inner shaft ring (411) of the first bearing (41) is sleeved on the outer wall surface of the matching bulge part (31) in a limiting manner, an outer shaft ring (412) of the first bearing (41) is in limiting fit with the side wall of the mounting groove (21), the top wall of the inner shaft ring (411) is pressed against the body part (32), and the bottom wall of the outer shaft ring (412) is pressed against the bottom wall of the mounting groove (21).

3. Steering mechanism (100) according to claim 1, characterized in that the second bearing (42) is fitted over the connection column (22) and is pressed between a fastening nut (5) cooperating with the connection column (22) and the bottom wall of the cooperating ridge (31).

4. Steering mechanism (100) according to claim 3, characterized in that a spring washer (6) is interposed between the fastening nut (5) and the second bearing (42).

5. Steering mechanism (100) according to claim 1, characterized in that the drive structure (1) is in a spline-fit connection with the connecting column (22).

6. The steering mechanism (100) according to claim 1, wherein the drive structure (1) is adapted to drive the damper assembly (2) through a complete revolution.

7. A steerable wheel assembly (1000) comprising a steering mechanism (100) according to any of claims 1-6 and a wheel (200), the wheel (200) being rotatably connected to the shock absorber assembly (2).

8. A steerable wheel assembly (1000) according to claim 7, characterized in that the shock absorber assembly (2) comprises: the damping device comprises two side damping arms (23), and the wheel (200) is connected between the two side damping arms (23).

9. The steerable wheel assembly (1000) according to claim 8, characterized in that the wheel (200) comprises: wheel hub motor (201) and tire (202), tire (202) cover is established wheel hub motor (201) is last, wheel hub motor (201) rotatable connection is in both sides between damping arm (23).

10. A vehicle, characterized by comprising a steerable wheel assembly (1000) according to any of claims 7-9.

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