CN214001799U - Steering mechanism with bidirectional clutch - Google Patents

Abstract

The utility model relates to a steering mechanism with bidirectional clutch, which comprises a steering wheel component, a gear box component, an electric drive gear box and a steering linkage mechanism, wherein the electric drive gear box comprises a shell, a motor, a gear set, a first transmission component and a second transmission component, the first transmission component is fixed on a transmission gear of the gear set, the transmission gear and the first transmission component are both rotationally arranged on the transmission shaft, the second transmission component is fixed on the transmission shaft, and the second transmission component is sleeved outside the first transmission component, a groove is also arranged on the adjacent surface of the second transmission component and the first transmission component, the first transmission component comprises a transmission antifriction sleeve and a transmission pin adsorbed on the side surface of the transmission antifriction sleeve, when the first transmission component rotates along with the transmission gear, the driving pin is clamped in the groove of the second driving component to drive the second driving component to rotate so as to drive the steering linkage mechanism to act through the driving shaft. The utility model discloses a manual function that turns to easily.

Description

Steering mechanism with bidirectional clutch

Technical Field

The utility model belongs to the technical field of toy car technique and specifically relates to a steering mechanism of two-way separation and reunion is related to in area.

Background

At present, the market capacity of the baby carrier industry is increased day by day, and the development potential is huge. The steering mechanism is an indispensable mechanism in the baby carriage, and the requirements on the structure of the steering mechanism are higher and higher.

When the automobile is running, a driver operates the steering wheel and makes the steering wheel deflect a certain angle on the road surface through a set of transmission mechanism to change the running direction of the automobile, so that the stable and safe normal running of the automobile is ensured. A whole set of mechanisms that can deflect the steered wheels to achieve steering of the vehicle is called a vehicle steering mechanism. The steering mechanism of the existing four-wheel baby carrier is a steering mechanism of a large-scale motor vehicle, and adopts a traditional steering mechanism.

Conventional steering mechanisms typically employ a steering gear, or are directly controlled by a steering tie rod. The direct steering pull rod is arranged, and the steering wheel is directly connected with the steering structure, so that the total steering angle of the steering wheel is small. Meanwhile, when the steering engine is adopted, the manual steering mechanism is connected with the electric steering mechanism, and when the manual steering is carried out, the friction force of the electric steering mechanism needs to be overcome, the steering resistance is large, and the required strength is too large compared with that of children. The use of a steering gear is also limited by the location of the vehicle structure, so not all products can be conveniently located.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, an object of the utility model is to provide a take steering mechanism of two-way separation and reunion, this steering mechanism resistance is less when manually operation, convenient operation.

In order to achieve the purpose of the invention, the utility model adopts the following technical scheme:

a steering mechanism with a bidirectional clutch comprises a steering wheel assembly, a gearbox assembly, an electric drive gearbox and a steering linkage mechanism, wherein the steering wheel assembly is connected with the gearbox assembly through an input gear shaft, the gearbox assembly is connected with the steering linkage mechanism through a transmission shaft, the electric drive gearbox is arranged on the transmission shaft between the gearbox assembly and the steering linkage mechanism, the electric drive gearbox comprises a shell, a motor, a gear set, a first transmission assembly and a second transmission assembly, the motor is fixed outside the shell, the gear set rotates, the gear set is arranged in the shell, the first transmission assembly is fixed on a transmission gear of the gear set, the transmission gear and the first transmission assembly are both rotatably arranged on the transmission shaft, the second transmission assembly is fixed on the transmission shaft, and the second transmission assembly is sleeved outside the first transmission assembly, the adjacent surface of the second transmission assembly and the first transmission assembly is also provided with a groove, the first transmission assembly comprises a transmission antifriction sleeve and a transmission pin adsorbed on the side surface of the transmission antifriction sleeve, and when the first transmission assembly rotates along with the transmission gear, the transmission pin is clamped into the groove of the second transmission assembly to drive the second transmission assembly to rotate so as to drive the steering linkage mechanism to act through the transmission shaft.

Preferably, the whole transmission antifriction sleeve is roughly rectangular, two end parts in the length direction form an arc shape, two transmission pins are respectively adsorbed on two sides in the width direction of the transmission antifriction sleeve, and the first transmission assembly is fixed on the lower end face of the transmission gear through the positioning flange.

As preferred scheme, the second transmission subassembly is the transmission flange, and the up end of transmission flange is equipped with first lantern ring, and a plurality of recess equidistance intervals set up on first lantern ring inner wall, transmission antifriction cover and transmission round pin set up in first lantern ring, in throwing into the recess with the transmission round pin when transmission antifriction cover rotates, and drive the transmission flange through the transmission round pin and rotate.

Preferably, a second sleeve ring is arranged on the lower end face of the transmission flange, a long-strip-shaped transmission block is fixed on the transmission shaft, and the transmission block is clamped in the second sleeve ring.

Preferably, the housing comprises an upper motor cover and a lower motor cover which are fixed to each other, the gear set comprises a first intermediate gear, a second intermediate gear and a transmission gear which are meshed in sequence, and the motor is meshed with the first intermediate gear through a motor output gear.

Preferably, the gearbox assembly comprises a housing, an input gear, a duplicate gear and an output gear, wherein the input gear is fixed on an input gear shaft inserted into the housing, the output gear is fixed on a transmission shaft inserted into the housing, and the input gear and the output gear are transmitted through the duplicate gear.

Preferably, the housing includes a transmission upper cover and a transmission lower cover fixed to each other, the output gear is embedded with a bearing, and the input gear shaft is inserted into the bearing.

Preferably, the steering linkage mechanism comprises a steering pull rod assembly and claw assemblies arranged at two ends of the steering pull rod assembly, a transmission plate is further arranged in the middle of the steering pull rod assembly, a long hole is formed in the transmission plate, and the transmission shaft is inserted in the long hole.

Preferably, the cleat assembly comprises a cleat welding component, a bolt, a bearing, a connecting sleeve, a nut and a wheel shaft; the bearings are positioned at two ends of the connecting sleeve and are nested on the bolt; the claw welding assembly is rotatably arranged on the connecting sleeve through the bolt and the bearing, and the nut is matched with the bolt; the claw welding assembly is rotationally connected with the steering pull rod assembly, and the wheel shaft is fixed on the claw welding assembly.

As the preferred scheme, a stabilizing cross bar is further fixed between the two connecting sleeves.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses an adopt transmission round pin, transmission antifriction cover and second drive assembly to mutually support, when the motor rotates, because the effect of centrifugal force, take magnetic transmission round pin to be thrown away, fall into in second drive assembly's recess, the long limit of antifriction cover contacts the transmission round pin, drives second drive assembly and rotates, realizes electronic the turning to. And can realize the driving function of the reverse rotation of the motor at the same time. When the steering wheel is manually operated, the transmission pin and the transmission antifriction sleeve are static, the steering wheel directly drives the transmission shaft and the transmission flange to rotate together, the transmission shaft transmits to the steering pull rod mechanism, and manual steering is achieved.

To sum up, the utility model has the advantages that, when manual rotation steering wheel, manual turning need not to drive the motor and rotates to manual function that turns to is light has been realized. The motor drive can drive the transmission shaft in the positive and negative directions, so that the motor drive steering is realized.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic diagram of the explosion structure of the present invention;

FIG. 3 is an exploded view of the transmission assembly of the present invention;

fig. 4 is an exploded view of the electrically driven transmission of the present invention;

fig. 5 is a schematic diagram illustrating the cooperation of the first transmission assembly and the second transmission assembly when the motor of the present invention rotates counterclockwise;

fig. 6 is a schematic diagram of the first transmission assembly and the second transmission assembly when the motor of the present invention rotates clockwise;

fig. 7 is a schematic view illustrating the first transmission assembly and the second transmission assembly engaged when the transmission shaft of the present invention is manually rotated;

fig. 8 is a schematic structural view of the steering linkage mechanism of the present invention.

Wherein the reference numerals are: 1. a steering wheel; 2. a gearbox assembly; 3. an electrically driven gearbox; 4. a steering linkage mechanism; 5. an upper cover of the gearbox; 6. an input gear shaft; 7. a duplicate gear; 8. an output gear shaft; 9. a bearing; 10. a lower cover of the gearbox; 11. an upper cover of the motor; 12. a motor output gear; 13. a first intermediate gear; 14. a second intermediate gear; 15. a drive pin; 16. a transmission gear; 17. a transmission antifriction sleeve; 18. positioning the flange; 19. a transmission flange; 20. a transmission block; 21. a lower cover of the motor; 22. a long hole; 23. a drive shaft.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, elements, and/or combinations thereof, unless the context clearly indicates otherwise.

Furthermore, in the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The invention will be further explained with reference to the following embodiments and drawings:

as shown in fig. 1 to 8, the present embodiment provides a steering mechanism with a bidirectional clutch, including a steering wheel assembly 1, a gearbox assembly 2, an electrically driven gearbox 3 and a steering linkage mechanism 4, wherein the steering wheel assembly 1 is connected to the gearbox assembly 2 through an input gear shaft 6, the gearbox assembly 2 is connected to the steering linkage mechanism 4 through a transmission shaft 23, and the electrically driven gearbox 3 is disposed on the transmission shaft 23 between the gearbox assembly 2 and the steering linkage mechanism 4.

The electrically driven gearbox 3 comprises a shell, a motor, a gear set, a first transmission assembly and a second transmission assembly, the shell 1 comprises a motor upper cover 11 and a motor lower cover 21 which are fixed to each other, the gear set comprises a first intermediate gear 13, a second intermediate gear 14 and a transmission gear 16 which are meshed in sequence, and the motor is meshed with the first intermediate gear 13 through a motor output gear 12.

The motor is fixed and drive gear group rotates outside the casing, the gear train sets up in the casing, first drive assembly fixes on the drive gear 16 of gear train, and drive gear 16 and first drive assembly all rotate and set up on transmission shaft 23, second drive assembly fixes on transmission shaft 23, and outside the first drive assembly was established to the second drive assembly cover, still is equipped with the recess on the adjacent surface of second drive assembly and first drive assembly, first drive assembly includes transmission antifriction cover 17 and adsorbs the transmission round pin 15 in transmission antifriction cover 17 side, and the transmission round pin is the magnet that has the magnetism, and when first drive assembly rotated along with drive gear 16, in the recess of second drive assembly was gone into to transmission round pin 15 card, it rotated and then drove 4 actions of steering linkage through transmission shaft 23. The whole of the transmission antifriction sleeve 17 is roughly rectangular, two end parts along the length direction form an arc shape, two transmission pins 15 are respectively adsorbed on two sides of the transmission antifriction sleeve 17 in the width direction, and the first transmission assembly is fixed on the lower end face of the transmission gear 16 through a positioning flange 18.

The second transmission assembly is transmission flange 19, and the up end of transmission flange 19 is equipped with first lantern ring, and a plurality of recess equidistance intervals set up on first lantern ring inner wall, transmission antifriction cover 17 and transmission round pin 15 set up in first lantern ring, and in throwing into the recess with transmission round pin 15 when transmission antifriction cover 17 rotates, and drive transmission flange 19 through transmission round pin 15 and rotate. The lower end face of the transmission flange 19 is provided with a second sleeve ring, the transmission shaft 23 is fixed with a long-strip-shaped transmission block 20, and the transmission block 20 is clamped in the second sleeve ring.

When the motor rotates, the output shaft transmits to the transmission gear through the motor output gear 12, the first intermediate gear set and the second intermediate gear, the magnetic transmission pin is thrown out under the action of centrifugal force and falls into the groove of the transmission flange, the long edge of the transmission antifriction sleeve is contacted with the transmission pin to drive the transmission flange to rotate, the transmission flange drives the transmission block on the transmission shaft, electric steering is realized, and the driving function of reverse rotation of the motor can be realized at the same time.

Because the inner cavity of the first lantern ring on the transmission flange is spaced from the outer circle of the transmission antifriction sleeve of the transmission gear, and the transmission pin is adsorbed on the two sides of the transmission antifriction sleeve in the width direction by the magnetism of the transmission pin, when the steering wheel drives the transmission shaft and the transmission flange to rotate, the transmission flange is not in contact with the first transmission assembly, so that the transmission pin and the transmission antifriction sleeve are static, the gear set cannot be driven when manual steering is realized, the operation is more labor-saving, and the function of manual steering relaxation is realized.

The gearbox assembly 2 comprises a shell, an input gear, a duplicate gear and an output gear, wherein the input gear is fixed on an input gear shaft 6 inserted into the shell, the output gear is fixed on a transmission shaft 23 inserted into the shell, and the input gear and the output gear are transmitted through the duplicate gear. The shell comprises a transmission upper cover 5 and a transmission lower cover 10 which are fixed with each other, a bearing 9 is embedded on the output gear, and the input gear shaft 6 is inserted on the bearing 9. The arrangement of the bearing forms good support for the output gear shaft, the gear box arranged in this way realizes the steering wheel steered manually, and the shaft below the reduction gearbox at the same shaft position realizes speed reduction output, so that the steering wheel has the advantages of small transmission volume and reliable support.

The steering linkage mechanism 4 comprises a steering pull rod assembly and claw assemblies arranged at two ends of the steering pull rod assembly, a transmission plate is further arranged in the middle of the steering pull rod assembly, a long hole 22 is formed in the transmission plate, and the transmission shaft 23 is inserted in the long hole 22.

The cleat assembly comprises a cleat welding component, a bolt, a bearing, a connecting sleeve, a nut and a wheel shaft; the bearings are positioned at two ends of the connecting sleeve and are nested on the bolt; the claw welding assembly is rotatably arranged on the connecting sleeve through the bolt and the bearing, and the nut is matched with the bolt; the steering linkage assembly is characterized in that the claw welding assembly is rotationally connected with the steering linkage assembly, the wheel shaft is fixed on the claw welding assembly, and a stabilizing cross rod is fixed between the two connecting sleeves.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments without departing from the spirit and scope of the present invention, and that any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention still fall within the technical scope of the present invention.

Claims (10)

1. The utility model provides a take steering mechanism of two-way separation and reunion, includes steering wheel subassembly (1), gearbox subassembly (2), electric drive gearbox (3) and turn to link gear (4), steering wheel subassembly (1) is connected with gearbox subassembly (2) through input gear axle (6), gearbox subassembly (2) are connected its characterized in that through transmission shaft (23) and steering link gear (4): the electric drive gearbox (3) is arranged on a transmission shaft (23) between the gearbox component (2) and the steering linkage mechanism (4), the electric drive gearbox (3) comprises a shell, a motor, a gear set, a first transmission component and a second transmission component, the motor is fixed outside the shell, the gear set is arranged in the shell, the first transmission component is fixed on a transmission gear (16) of the gear set, the transmission gear (16) and the first transmission component are both rotationally arranged on the transmission shaft (23), the second transmission component is fixed on the transmission shaft (23), the second transmission component is sleeved outside the first transmission component, a groove is further arranged on the adjacent surface of the second transmission component and the first transmission component, the first transmission component comprises a transmission antifriction sleeve (17) and a transmission pin (15) adsorbed on the side surface of the transmission antifriction sleeve (17), when the first transmission component rotates along with the transmission gear (16), the transmission pin (15) is clamped in the groove of the second transmission component to drive the second transmission component to rotate, and further the transmission shaft (23) drives the steering linkage mechanism (4) to act.

2. The steering mechanism with the bidirectional clutch is characterized in that the transmission antifriction sleeve (17) is generally rectangular as a whole, two end portions in the length direction are arc-shaped, two transmission pins (15) are respectively adsorbed on two sides in the width direction of the transmission antifriction sleeve (17), and the first transmission assembly is fixed on the lower end face of the transmission gear (16) through a positioning flange (18).

3. The steering mechanism with the bidirectional clutch is characterized in that the second transmission assembly is a transmission flange (19), a first sleeve ring is arranged on the upper end face of the transmission flange (19), a plurality of grooves are arranged on the inner wall of the first sleeve ring at equal intervals, the transmission antifriction sleeve (17) and the transmission pin (15) are arranged in the first sleeve ring, the transmission antifriction sleeve (17) throws the transmission pin (15) into the grooves when rotating, and the transmission flange (19) is driven to rotate through the transmission pin (15).

4. The steering mechanism with the bidirectional clutch is characterized in that a second sleeve ring is arranged on the lower end face of the transmission flange (19), an elongated transmission block (20) is fixed on the transmission shaft (23), and the transmission block (20) is clamped in the second sleeve ring.

5. The steering mechanism with the bidirectional clutch is characterized in that the shell comprises an upper motor cover (11) and a lower motor cover (21) which are fixed to each other, the gear set comprises a first intermediate gear (13), a second intermediate gear (14) and a transmission gear (16) which are meshed in sequence, and the motor is meshed with the first intermediate gear (13) through a motor output gear (12).

6. The steering mechanism with bidirectional clutch according to claim 1, wherein the gear box assembly (2) includes a housing, an input gear, a duplicate gear and an output gear, and the input gear is fixed on an input gear shaft (6) inserted into the housing, and the output gear is fixed on a transmission shaft (23) inserted into the housing, and the input gear and the output gear are transmitted by the duplicate gear.

7. The steering mechanism with the bidirectional clutch is characterized in that the shell comprises a transmission upper cover (5) and a transmission lower cover (10) which are fixed with each other, a bearing (9) is embedded on the output gear, and the input gear shaft (6) is inserted on the bearing (9).

8. The steering mechanism with the bidirectional clutch according to claim 1, wherein the steering linkage mechanism (4) comprises a steering pull rod assembly and claw assemblies arranged at two ends of the steering pull rod assembly, a transmission plate is further arranged in the middle of the steering pull rod assembly, a long hole (22) is formed in the transmission plate, and the transmission shaft (23) is inserted in the long hole (22).

9. The steering mechanism with the bidirectional clutch as claimed in claim 8, wherein the cleat assembly comprises a cleat welding component, a bolt, a bearing, a connecting sleeve, a nut and a wheel shaft; the bearings are positioned at two ends of the connecting sleeve and are nested on the bolt; the claw welding assembly is rotatably arranged on the connecting sleeve through the bolt and the bearing, and the nut is matched with the bolt; the claw welding assembly is rotationally connected with the steering pull rod assembly, and the wheel shaft is fixed on the claw welding assembly.

10. The steering mechanism with the bidirectional clutch as claimed in claim 9, wherein a stabilizing cross bar is further fixed between the two connecting sleeves.

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